Solid-State Batteries

PATENT MONITOR Solid-State Batteries

Quarterly Report Q1 2019

INTRODUCTION 4 MAIN IP PLAYERS 38 Toyota METHODOLOGY 8 LG Chem Bosch / SEEO KEY FACTS OF THE QUARTER 15 Overview For each patent assignee: • Solid electrolyte materials vs. Supply chain •Overview •Electrolyte Materials vs. Supply chain New patent applications : •Notable patents selected by Knowmade’s analysts • Overview • Main patent applicants vs. Technical segments ACCESS TO IP ANALYSTS 45 • New entrants in solid-state battery patent landscape • Main IP collaborations • Electrolyte materials vs. Supply chain (number of patents) • Electrolyte materials vs. Supply chain (main patent applicants)

Patents newly granted: • Main IP players • Main patent assignees vs. Technical segments • Electrolyte materials vs. Supply chain (number of patents) • Electrolyte materials vs. Supply chain (main patent applicants)

Most notable abandoned or expired patents

ABOUT KNOWMADE Dr. Fleur Thissandier Fleur works for Knowmade in the field of Materials Knowmade is a Technology Intelligence and IP Strategy consulting Chemistry and Energy storage. She holds a PhD in company specialized in analysis of patents and scientific information. Materials Chemistry and Electrochemistry from The company helps R&D organizations, investors and innovative CEA/INAC, (Grenoble, France). She also holds a Chemistry companies to understand their competitive landscape, follow Engineering Degree from the Superior National School of technology trends, and find out opportunities and threats in terms of Chemistry (ENSCM Montpellier, France). Fleur previously technology and patents. worked in battery industry as R&D Engineer. Contact: [email protected] Knowmade’s analysts combine their strong technology expertise and in-depth knowledge of patents with powerful analytics tools and methodologies to turn patents and scientific findings into business intelligence tools. Our experts provide prior art search, patent Dr. Nicolas Baron landscape analysis, scientific literature analysis, patent valuation, IP Nicolas is CEO and co-founder of Knowmade. He manages due diligence and freedom-to-operate analysis. In parallel the company the company’s development and strategic direction, and proposes litigation/licensing support, technology scouting and personally leads the Electronics & Telecom department. He holds a PhD in Physics from the University of Nice IP/technology watch service. Sophia-Antipolis (France) and a Master degree in Intellectual Property Strategies and Innovation from the Knowmade has a solid expertise in Compound Semiconductors, Power IEEPI (Strasbourg, France). Electronics, Batteries, RF Technologies & Wireless Communications, Contact: [email protected] Solid-State Lighting & Display, Photonics, Memories, MEMS & Solid- State Sensors/Actuators, Semiconductor Manufacturing, Packaging & Assembly, Medical Devices, Medical Imaging, Microfluidics, Biotechnology, Pharmaceutics, Agri-Food.

CONTENTS Monthly IP database (Excel file) • New patent applications • Patents newly granted • Patents expired or abandoned • Transfer of IP rights (re-assignment, licensing) • Patent litigation & opposition Quarterly report (PDF slide deck) On a quarterly basis, this report will provide the IP trends over the last three months, with a close look to key IP players and key WHY YOU SHOULD SUBSCRIBE patented technologies. ✓ Track your competitors, partners or clients Access to IP analysts (100h a year) On-demand Q&A and discussion session with ✓ Identify newcomers to your technology field our analysts on specific patented technologies ✓ Early detect opportunities and risks for your business strategy or company IP portfolios ✓ Be ahead of technology trends ✓ Identify emerging research areas and cutting-edge technology developments ✓ Mitigate patent infringement risks ✓ Take advantage of free technologies

On a quarterly basis, this report will provide the IP trends over the last three months, with a close look to key IP players and key patented technologies. •Main patent applicants, their notable patent filings and technologies. •New entrants and their patents. •Technology trends and notable patented technical solutions. •Key patents newly granted, their owners and claimed inventions. •Main IP right transfers (reassignments, licensing agreements). •Key patents newly expired or abandoned, their owners and their potential market impact. •Noteworthy news on patent litigation and opposition, plaintiffs and defendants, patents and products involved.

Segments (an X indicate a patent belonging to the segment)

Identify easily and efficiently The patents are manually categorized in technical - New patents applications segments using keyword analysis of patent title, Download a sample file - Patents newly granted abstract and claims, in conjunction with expert review - Patents expired or abandoned of the subject-matter of inventions.

Included Not included

Patents related to: Patents related to: •Solid electrolytes for Li-ion batteries (including polymer, •Other solid-state batteries (Li-S battery, Li-Air battery, Na-ion inorganic and polymer/inorganic composite electrolytes). battery, Mg-ion battery etc.) •Solid electrolytes without references to their use in Lithium batteries in the patent full text •Electrodes for solid-state Li-ion batteries (core-shell electrode •Gelled electrolytes materials containing solid electrolytes materials, electrode •Coin-cell solid-state batteries containing solid electrolytes materials, etc.). It includes •Thin-film Solid-state batteries polymer, inorganic and polymer/inorganic composite •Microbatteries with solid electrolytes electrolytes.

•Solid-state Li-ion batteries (i.e. Lithium metal batteries and Li- ion batteries) and their manufacturing methods. It includes polymer, inorganic and polymer/inorganic composite electrolytes.

Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 9 © 2019 All rights reserved | www.knowmade.com METHODOLOGY Segment definition Patents were manually segmented according to their current legal status, and their technologies/applications

SEGMENTATION BY LEGAL STATUS SEGMENTATION BY TECHNOLOGIES/APPLICATIONS Production Chain Position: NEW PATENT: New patent families published during the month (extensions from older patent families are excluded). • Electrolyte: Inventions mainly claiming electrolyte material (composition and/or manufacturing methods). • Electrode: Inventions mainly claiming electrode material or layer including solid electrolyte material (composition GRANTED PATENT: Patents granted during the quarter (granted and/or manufacturing methods). patents from older patent families containing already granted • Battery cells: Inventions mainly claiming solid-state battery cells (composition and/or manufacturing methods). patents are excluded). • Battery Pack: Inventions mainly claiming battery packs containing solid-state batteries. • Separator: Inventions mainly claiming a separator containing solid electrolyte materials (composition and/or PATENT TRANSFER: Re-assignments (IP transfers) during the manufacturing methods). quarter. Type of solid electrolyte: DEAD PATENT: Granted patents expired or abandoned during the quarter. This segmentation produces the following technological segments: Inorganic, Inorganic/Polymer, Polymer, List of materials, Undefined solid electrolytes

Inorganic Solid Electrolyte Materials: This segmentation produces the following technological segments: - Sulfides (all), Argyrodites, Sulfide Glass Ceramics, Thio-LISICON, Other sulfides, List of Sulfides - Oxides (all), Oxide Glass Ceramics, Anti-Perovskite, Perovskite, LISICON, Garnet, NASICON, Other oxides, List of Oxides - Hydrides, Other inorganics, List of inorganics, Undefined Inorganics

Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 10 © 2019 All rights reserved | www.knowmade.com METHODOLOGY Terminologies for Patent Analysis (1/2) Patent Applicant, Patent Assignee An applicant is a person or organization (e.g. company, university, etc.) who/which has filed a patent application. An assignee is a person or organization (e.g. company, university, etc.) who/which holds patent rights. There may be more than one applicant/assignee per patent application.

Patent Family A patent family is a set of patents filed in multiple countries to protect a single invention by a common inventor(s). A first application is made in one country – the priority country – and is then extended to other countries.

Priority Date The priority date is the date on which the patent application was filed. At this date the patent document is not made available to the public.

Priority Number The priority number is the number of the application with respect to which priority is claimed, i.e. it is the same as the application number of the claimed priority document. The priority number is made up of a country code (two letters), the year of filing (four digits) and a serial number (variable, maximum seven digits).

Publication Date The publication date is the date on which the patent application was first published. It is the date on which the patent document is made available to the public, thereby becoming part of the state of the art.

Publication Number The publication number is the number assigned to a patent application on publication. Publication numbers are generally made up of a country code (two letters) and a serial number (variable, one to twelve digits) (e.g. DE202004009768).

International Patent Classification (IPC) The technical content of patent documents is classified in accordance with the International Patent Classification (IPC). The publishing office assigns an IPC symbol valid at the time of publication of the patent application. The complete IPC can be found on the website of the World Intellectual Property Organization (WIPO - http://www.wipo.int/ipcpub).

Citations In the context of patents, a citation is a reference to a previous work (prior art) that is considered relevant to the considered patent application. Citations may be made by the Inventor or by the Examiner during patent examination.

Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 11 © 2019 All rights reserved | www.knowmade.com METHODOLOGY Terminologies for Patent Analysis (2/2) WO and EP Patent Applications International (WO) and European (EP) Patent Applications are made through the World Intellectual Property Organization (WIPO) and the European Patent Office (EPO), respectively. WO applications designate signatory states or regions to the Patent Cooperation Treaty (PCT) and will have the same effect as national or regional patent applications in each designated state or region, leading to a granted patent in each state or region. EP applications are regional patent applications designating signatory state to the European Patent Convention (EPC), and leading to granted patents having the same effect as a bundle of national patents for the designated states.

Legal Status of the Patent • Pending: Patent applications in a pre-grant/pre-final-rejection stage in the patent office. • Granted: Patents in a ”post-decision” or “post-grant” stage in the patent office. • Abandoned (Lapsed): Patents or published applications that are not in force before the end of the normal term right because of applicant action or in-action. Normally this status refers to post-grant patents where the applicant has not paid the necessary renewal fees. However, “Lapsed” can include pre-grant published applications that are deemed likely abandoned because there has been no known activity in the office for a significant period of time. Typical office status for Lapsed could be “abandoned”, “lapsed”, “withdrawn”, “surrendered”, etc. • Expired: Granted patents that have expired due to normal life of the patent cycle. • Rejected (Revoked): Patents or published applications that are not in force before the end of the normal term right because of office action. Normally, this status refers to post-grant patents subject to opposition events. However, “Revoked” can include final rejection notices when we have that information from the office. Typical office status for “Revoked” could be “suspension”, “interrupted”, “cancelled”, “revoked”, “refused”, etc.

Litigation Cases “Litigation Cases” refers to filed actions. A single case filed may include multiple defendants. The date for a case filed is the date on which it was originally filed.

Litigation Campaign “Litigation Campaign” refers to all cases filed by the same plaintiff (inclusive of all members in the corporate family) where each case has at least one patent or family member of a patent in common with another case in the campaign.

ITC (International Trade Commission) Investigation The United States International Trade Commission (USITC) is an independent, quasi-judicial Federal agency with broad investigative responsibilities on matters of trade. The Commission adjudicates cases involving imports that allegedly infringe intellectual property rights. A company can request an ITC investigation if they think that another company imports products which infringe their patents in USA . Through such proceedings, the agency facilitates a rules-based international trading system. The Commission makes most of its information and analysis available to the public to promote understanding of international trade issues. Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 12 © 2019 All rights reserved | www.knowmade.com KEY FACTS Q1 2019

288 NEW PATENT APPLICATIONS Solid-State Batteries 104 GRANTED PATENTS 0 PATENT TRANSFER 9 DEAD PATENTS

3 Main industrial IP players selected and analyzed

January February 18 IP collaborations identified (patent co-filings) March

35 New entrants identified

No patent litigation

Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 14 © 2019 All rights reserved | www.knowmade.com KEY FACTS - Q1 2019 Solid electrolyte materials vs. Supply chain The numbers represent the number of patent families. One All segments Electrolyte Electrode Battery cell Battery pack Separator patent family can belong to New New New New New New New granted New granted New granted New granted New granted New granted multiple segments. application application application application application application All segments 288 104 123 52 76 17 82 28 5 2 7 7 Inorganic 136 60 49 33 45 10 45 18 1 1 Inorganic/ Polymer 66 19 41 8 13 5 14 5 1 Polymer 47 13 32 11 11 8 1 1 List of materials 7 1 5 1 2 Undefined solid electrolytes 19 4 2 14 4 4 Sulfides (All) 54 21 26 14 14 3 16 5 Argyrodites 12 3 9 3 2 1 Sulfide glasses 6 11 3 9 2 1 1 2 Thio-LISICON 4 2 3 2 1 Other sulfides 6 4 2 1 List of sulfides 28 6 9 1 8 2 12 3 Oxide (all) 83 38 45 22 24 11 16 5 2 Oxide glass ceramics 2 3 1 1 1 1 1 Anti-perovskites 6 2 3 2 3 1 Perovskites 6 5 3 3 1 1 2 1 LISICON 1 1 Garnet 30 15 17 11 5 2 8 2 1 NASICON 8 7 5 3 3 3 1 1 Other oxides 4 2 1 1 List of oxides 31 8 15 3 12 4 4 1 1 Hydrides 7 1 3 1 1 3 Other inorganics 8 3 3 6 3 List of inorganics 34 9 15 2 6 10 2 1 5 5 Undefined inorganics 36 19 7 3 12 2 16 12 1 1 1

Main publication countries of new patent applications Ranking of main patent applicants (Q1 2019) 22 21 18 150+ patent applicants

8 7 6 5 5 4 4 4 4 4 4 4 4 4 4 4 4 4

USA Europe Japan (40+) (30+) (20+) Korea (40+) 73+ PCT patent China applications (150+) (WO patent) The numbers represent the number of new patent families. Material manufacturers R&D labs The numbers represent the number of new patent families in the corresponding country. Both Material and Battery manufacturers Battery manufacturers Electronic component manufacturers End-Users and integrators

• As previously observed in 2018, new patent applications are mainly filed in China. In fact, • More than 60% of patent assignees active in Q1 2019 publish only 1 patent family in Q1 2019. more than 50% of patent applicants in Q1 2019 are originating from China, especially R&D • More than 40% of patent assignees in Q1 2019 are R&D Labs, more than 20% are Material labs, battery manufacturers and material manufacturers. Manufacturers and battery manufacturers. There are also several notable car manufacturers • There is also numerous new patent families filed in Japan (the former leading country in (Toyota, Hyundai, Zotye, Great Walls, BMW, SAIC). solid-state battery). Several leading companies originating from Japan still have a high • Even if Bosch announces that it abandons EV battery making and it sells SEEO, it holds the patenting activity on solid-state battery (Toyota, Fujifilm, Hitachi, Toshiba, Idemitsu Kosan, second highest number of new patent applications in Q1 2019. In fact, patents are published 18 Murata, Mitsui, etc.). Most of Japanese IP players in Q1 2019 are Material manufacturers. months after their filings. Moreover, patents are valuable assets for a future selling. • Despite a relatively low number of Korean IP players in Q1 2019, there is a notable new • There are other notable patent assignees active in Q1 2019: NGK, Great Wall Motors, FDK, patent families filed in Korea induced by the high patenting activity of major battery Panasonic, TDK, Lishen, Corning, SAFT, Wildcat Discovery Tech., Blue Solutions, Dyson/SAKTI3, manufacturers LG Chem and Samsung. Most of Korean IP players in Q1 2019 are R&D labs. Solid Power, BMW,Quantumscape, BAK, HydroQuebec, BASF, etc.

Main patent applicants vs. Technical segments

/ / solid

The numbers represent the number cell

oxides

sulfides

materials LISICON

inorganics inorganics

of patent families. One patent family -

perovskites

Garnet

LISICON

Polymer Polymer

ceramics

Hydrides

Inorganic NASICON

Electrode Electrode

Separator

Oxide (all) Oxide inorganics Inorganic

can belong to different segments. Undefined

Electrolyte

Oxide glass glass Oxide

Battery Battery

Perovskites

Argyrodites

electrolytes

Battery pack Battery (All) Sulfides

Other

Listoxides of

Thio

Other

Listsulfides of

Sulfide glasses Sulfide

Undefined

List of

Anti

Other List of All Players 123 76 82 5 7 136 66 47 7 19 54 12 6 4 6 28 83 2 6 6 1 30 8 4 31 7 8 34 36 Toyota 6 5 11 1 16 1 4 7 1 2 4 3 3 8 Bosch / Seeo 4 5 12 1 4 6 3 2 6 1 1 1 1 3 2 3 Lg Chem 8 6 2 2 3 3 8 2 3 2 1 4 1 Byd 3 3 2 2 2 2 1 1 3 1 2 2 Soundon New Energy Tech. 1 2 4 4 3 3 3 1 1 2 1 Fujifilm 5 1 1 5 3 1 2 1 1 3 Hitachi Zosen 1 4 5 2 2 1 1 1 3 2 Samsung 3 1 2 4 1 1 1 1 1 2 Chengdu New Keli Chem. Science 2 1 1 2 1 1 2 2 1 Battery Research Inst. Of Henan 3 2 1 2 2 Henan Normal University 3 2 1 2 2 Qingdao Inst. Of Bioenergy 2 2 3 1 4 1 1 2 Central South University 3 1 1 2 2 1 1 1 Toshiba 2 1 1 1 2 2 2 1 1 Hyundai_kia 1 3 3 1 1 1 3 Idemitsu Kosan 4 4 4 4 1 Hitachi Metals 2 1 1 4 2 1 1 2 Murata / Sony 2 2 3 1 3 1 2 1 Mitsui Chemicals 1 3 4 2 1 1 3 3 Kiit 3 1 3 1 3 3 Changsha Res. Inst. Of Min. & Metal. 3 1 3 1 3 2 1

Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 18 © 2019 All rights reserved | www.knowmade.com NEW PATENT APPLICATIONS – Q1 2019 New entrants in solid-state battery patent landscape • In Q1 2019, there are 30+ new entrants in solid-state battery patent landscape. Most of them are Chinese companies (Easpring Material Technology, Shanshan New Materials, Fengchao Energy Technology, Zotye, SAIC,etc.) or R&D labs (Battery Research Institute of Henan, Chengdu University of Technology, etc.). • Power IV is a Japanese new comer located in Tokyo. There is no detail on its activities easily available on Internet. It holds only two patent families in its general patent portfolio (both published in 2019). Thus, it could be a start-up company. Its patents are related to secondary solid-state batteries having a silicon/graphene/graphite anode and a polymer inorganic solid electrolyte. • Other notable industrial companies among new comers are Lithium Energy and Power (Battery Manufacturer) and Arlanxeo (Material Manufacturer). Other notable R&D labs among new comers are Université de Paris-Est-Créteil Val de Marne (France, co-filed with SAFT and CNRS), Polytecnico di Torino (Italy, co-filed with Toyota) and Giessen University (Germany, co-filed with BASF).

COMPANY WEBSITE PATENT NUMBER COMMENTS

• Easpring Material Technology is a Chinese high-tech enterprise founded in 2001 and engaged in the research and Easpring Material CN109473636 ; development of new energy materials. www.easpring.com Technology CN109461894 • Its patents on solid-state battery are related to Surface modified positive electrode material and composite positive electrode material (NMC/Garnet ; NMC/NCA/NASICON) for solid-state lithium battery and their preparation method. • Shanshan New Materials is a Chinese company founded in 2003. It researches and manufactures battery materials. Shanshan New www.shanshantech.com CN109546206 • Its patent on solid-state battery is related to wide-temperature-range lithium ion battery composite Materials polymer/inorganic solid electrolyte and its preparation method. • Fengchao Energy Technology is a subsidiary of Chinese car manufacturer Great Wall Motor and specialized in the CN109546141 ; Fengchao Energy manufacturing of Lithium battery. www.gwm-global.com WO2019129262 ; Technology • Its patents on solid-state batteries are related to Antiperovskite solid electrolyte, its synthesis method and its use in WO2019129267 battery and lithium metal composite electrode, its preparation method and lithium ion battery. Lithium Energy and • Lithium Energy and Power is a joint-venture between Bosch, Mitsubishi and GS Yuasa established in 2013. www.lithium-ep.com WO2019025336 Power • Its patent on solid-state battery is related to method for producing electrodes by means of binder fibrillation. • Arlanxeo is a chemical holding founded in 2015. It is specialized in the production and distribution of synthetic rubber with special technical properties for various manufacturing industries. Arlanxeo www.arlanxeo.com WO2019007875 • Its patents on solid-state batteries is related to cathode containing sulfide solid electrolyte and all-solid-state lithium- ion battery containing it.

USXXXXXXX Clickable link to pdf document Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 19 © 2019 All rights reserved | www.knowmade.com NEW PATENT APPLICATIONS – Q1 2019 Main IP collaborations (1/2)

This table shows main new collaborations involving industrial applicants. It highlights the collaborations with industrials players that have led to patent co-filings.

Number of common Representative members of Co-assignees Topic of patent families Comments patent families patent families Postech and LG have been close partners since KR20190033422 Postech 2 Polymer electrolyte and its manufacturing method 1998 and collaborate on several R&D projects. WO2019059705 Postech and LG have a common R&D lab. LG Chem Positive electrode containing NMC and NASICON solid UNIST 1 WO2019013511 electrolyte, its manufacturing method and its use in - Lithium secondary battery SAFT and CNRS/Université Paris Créteil have a Solid electrolyte (Li PS X (BH ) ) for a lithium-ion SAFT CNRS / Univ. Paris Est 1 WO2019057840 7-x 6-x x-z 4 z common collaborative project on Hydride Solid electrochemical element electrolyte funded by EU FP7 program. Method for manufacturing all-solid battery with a silicon-containing anode; Silicon negative electrode NIMS and Toyota are members of Lithium-ion JP2019046722; NIMS 2 material for all solid lithium ion secondary battery, Battery Technology and Evaluation Center JP2019003901 negative electrode member, and manufacturing method (LIBTEC). of all solid lithium ion secondary battery using it Toyota Composite polymer electrolyte (CPE) membranes for Politecnico Di Torino 1 WO2019052648 secondary solid state li-metal cells and its production - process All-solid-state lithium ion secondary battery with Toyota and Shin Etsu have a partnership on rare Shin Etsu Chemical 1 US20190013541 electrodes containing Silicon or SiO mixed with a solid earth materials. electrolyte Full-solid state lithium battery, cathode for it and its Bosch/SEEO Fudan University 1 CN109494351 - preparation method

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Number of common Representative members of Co-assignees Topic of patent families Comments patent families patent families All-solid lithium ion secondary battery containing Oxide Hitachi and Tohoku University have a partnership Hitachi Zosen Tohoku University 1 JP2019040709 Glass Ceramic/Hydride solid electrolyte and its on solid-state batteries, notably the decrease of manufacturing method their internal resistance. Ceramic material including Li, S and B and with high lithium ion conductivity and high electrochemical Solid Power Stanford University 1 WO2019051305 - stability for use as solid-state electrolyte and electrode additive Samsung and KIT have partnerships on several KIT 1 US20190067695 All-solid-state secondary battery topics. Samsung and Corning had an equity venture Samsung A composite solid electrolyte (sulfide and/or oxide KR20190015134 named Samsung Corning Precision Materials, Corning 2 and/or polymer) and its use in electrode assembly for US20190044186 which is fully owned by Corning since 2014. It solid li-ion battery manufactures glasses for electronics applications. Lithium Energy and Power is a joint-venture Lithium Energy Method for producing electrodes by means of binder Bosch/SEEO 1 WO2019025336 between Bosch, Mitsubishi and GS Yuasa & Power fibrillation established in 2013. Hydroquebec and Sony have a joint-venture Polymers comprising imidazole derivatives and their use (Estallion) founded in 2014 and dedicated to the Hydro Quebec Murata / Sony 1 WO2019006560 in electrochemical cells development of energy storage systems for high capacity electric grids. Rechargeable solid-state electrochemical cells protected BASF and Giessen University have common BASF Giessen University 1 EP3422459 against thermal runaway research cooperation contracts. Sila Nanotechnologies is an American company co- Solid electrolyte technology with rearrangeable bonds Sila Nanotech Georgia Tech 1 US20190006672 founded in 2011 by a Georgia Tech Material for metal and metal-ion batteries Science professor. It develops batteries.

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All segments Electrolyte Electrode Battery cell Battery pack Separator The numbers represent the number All segments 288 123 76 82 5 7 of patent families. One patent family can belong to multiple segments. Inorganic 136 49 45 45 1 Inorganic/ Polymer 66 41 13 14 Polymer 47 32 11 8 • New patent applications are mainly related to Electrolyte, Electrode List of materials 7 5 2 and Battery. There are only few new patent applications related to Undefined solid electrolytes 19 2 14 4 Battery pack and separator. Sulfides (All) 54 26 14 16 • New patent applications are mainly related to inorganic and Argyrodites 12 9 2 1 inorganic/polymer solid electrolytes, almost equivalently sulfide and Sulfide glasses 6 3 2 1 oxide solid electrolytes. In fact, both of them have advantages and Thio-LISICON 4 3 1 drawbacks and that the choice of electrolyte material is not obvious. Other sulfides 6 4 2 1 • Contrary to patents on electrode and battery cells, patents on List of sulfides 28 9 8 12 electrolytes are equivalently related to all type of solid electrolytes. Oxide (all) 83 45 24 16 2 Contrary to patents on inorganic/polymer and polymer electrolytes, Oxide glass ceramics 2 1 1 patents on inorganic electrolytes are equivalently related to electrolyte, electrode and battery. Patents on electrode and battery Anti-perovskites 6 3 3 1 cells related to inorganic and inorganic/polymer solid electrolytes Perovskites 6 3 1 2 mainly mention a list of inorganic materials. LISICON 1 1 • Garnet and Argyrodites are the main inorganic materials mentioned in Garnet 30 17 5 8 1 new patent applications. There is only very few patents related to NASICON 8 5 3 1 Oxide Glass Ceramics and LISICON indicating that these materials do Other oxides 4 2 1 1 not attract R&D developments (either due to their technological List of oxides 31 15 12 4 1 maturity or their low performances). Hydrides 7 3 1 3 • Even if Hydride is an emerging solid electrolyte, several new patent Other inorganics 8 6 3 publications are related to battery cell confirming that this material is List of inorganics 34 15 6 10 5 very promising. Undefined inorganics 36 7 12 16 1

Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 22 © 2019 All rights reserved | www.knowmade.com NEW PATENT APPLICATIONS – Q1 2019 The numbers represent the number of patent families. Electrolyte materials vs. Supply chain (2/5) One patent family can belong to multiple segments. All segments Electrolyte Electrode Battery cell Battery pack Separator All Players (288) All Players (123) All Players (76) All Players (82) All Players (5) All Players (7) Toyota (22), Bosch_seeo (21), Lg Lg Chem (8), Toyota (6), Fujifilm (5), Lg Chem (6), Toyota (5), Bosch_seeo Bosch_seeo (12), Toyota (11), Hitachi Toyota (1), Bosch_seeo (1), LG Chem (2), Byd (2), Shandong

Chem (18), Byd (8), Soundon New Bosch_seeo (4), Idemitsu Kosan (4) (5), Zotye Int. (3), Mitsui Mining & Zosen (4), Soundon New Energy Tech. Bmw (1), Shanghai Lixin University (1), Toshiba (1), All All Energy Technology (7), Fujifilm (6), Smelting (3), Byd (3) (4), Hyundai_kia (3) Energy Science & Tech. (1), Shanghai Energy New Materials segments Hitachi Zosen (5), Samsung (5) Quantumscape (1) Technology (1) All Players (136) All Players (49) All Players (45) All Players (45) All Players (1) Toyota (16), Hitachi Zosen (5), Toyota (4), Idemitsu Kosan (4), Toyota (4), Lg Chem (3), Zotye Toyota (8), Hitachi Zosen (4), Quantumscape (1) Bosch_seeo (4), Samsung (4), Fengchao Energy Technology (2), International (3), Mitsui Mining & Bosch_seeo (3), Hyundai_kia (2), - Soundon New Energy Tech. (4), Great Wall Motor (2), Fdk (2), Smelting (3), Beijing Easpring Material Soundon New Energy Tech. (2),

Inorganic Idemitsu Kosan (4), Hitachi Metals Samsung (2), Hitachi Metals (2) Technology (2), Soundon New Energy Murata Manufacturing_sony (2) (4), Mitsui Mining & Smelting (4) Technology (2), Unist (2) All Players (66) All Players (41) All Players (13) All Players (14) / Bosch_seeo (6), Fujifilm (5), Lg Fujifilm (5), Bosch_seeo (3), Aecc Bosch_seeo (2), Toshiba (2), Z.Z. New Lg Chem (2), Soundon New Energy Chem (3), Soundon New Energy Beijing Inst. Of Aeronautical Mat. (3), Energy Technology (2), Ngk (2), Etri (1), Tech. (2), Tianmu Energy Anode Mat. - - Tech. (3), Aecc Beijing Inst. Of Changsha Research Inst. Of Mining & Byd (1), Yuhuang New Energy Tech. (1), (2), Bosch_seeo (1), Amity Univ. (1),

Polymer Aeronautical Mat.(3), Suzhou Metallurgy (3), Hitachi Chemical (2), China Electronic Tech. (1), Amperex Hyundai_kia (1), Qingtao Energy Dev. Inorganic Qingtao New Energy Tech. (3) Suzhou Qingtao New Energy Tech. (2) Technology_tdk (1) (1), China Electronic Tech. (1) All Players (47) All Players (32) All Players (11) All Players (8) Lg Chem (8), Bosch_seeo (3), Lg Chem (7), Central South Chengdu New Keli Chemical Science (1), Bosch_seeo (2), Fraunhofer (2), Central South University (2), University (2), Postech (2), Huazhong HIT (1), Lg Chem (1), Bosch_seeo (1), Samsung (1), Beijing Easpring Material - - Pohang University Of Science & Univ. (1), Henan University (1), Univ. Beijing Easpring Material Tech. (1), Byd Tech. (1), Chengdu Chenguang Fluoro

Polymer Technology Postech (2), Byd (2), Of Utah (1), Bosch_seeo (1), Samsung (1), Yuhuang New Energy Tech.1), Ube & Silicone Elastomers (1) Fraunhofer (2) (1), Blue Solutions_bollore (1) Ind. (1), Lithium Energy & Power (1) All Players (7) All Players (5) All Players (2) Lg Chem (2), Bosch_seeo (2), Lg Chem (2), Bosch_seeo (1), Applied Bosch_seeo (1), Dyson Technology (1) Dyson Technology (1), Applied - Materials (1), Fudan University (1), - -

List of List Materials (1), Fudan University (1), KETRI (1), ETRI (1) materials KETRI (1), ETRI (1) All Players (19) All Players (2) All Players (14) All Players (4) Bosch_seeo (6), Toyota (4), Lishen China Energy Lithium (1), Beijing Bosch_seeo (5), Toyota (3), Lishen Toyota (1), Bosch_seeo (1), (2), Bmw (1), China Energy Lithium - Tunghsu Carbon Advanced Materials (2), Boe Technology (1), Hefei Bmw (1), Shanghai Lixin -

solid (1), Boe Tech. (1), Hefei Guoxuan Technology (1) Guoxuan High Tech Power Energy (1), Energy Science & Technology Undefined

electrolytes High Tech Power Energy (1) Jiangsu Tafel New Energy Tech. (1) (1) The numbers represent the number of patent families. One patent family can belong to different segments. Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 23 © 2019 All rights reserved | www.knowmade.com NEW PATENT APPLICATIONS – Q1 2019 The numbers represent the number of patent families. Electrolyte materials vs. Supply chain (3/5) One patent family can belong to multiple segments. All segments Electrolyte Electrode Battery cell Battery pack Separator All Players (288) All Players (123) All Players (76) All Players (82) All Players (5) All Players (7) Toyota (22), Bosch_seeo (21), Lg Chem Lg Chem (8), Toyota (6), Fujifilm (5), Lg Chem (6), Toyota (5), Bosch_seeo Bosch_seeo (12), Toyota (11), Hitachi Toyota (1), Bosch_seeo LG Chem (2), Byd (2),

(18), Byd (8), Soundon New Energy Bosch_seeo (4), Idemitsu Kosan (4) (5), Zotye Int. (3), Mitsui Mining & Zosen (4), Soundon New Energy Tech. (1), Bmw (1), Shanghai Shandong Univ. (1), All All Technology (7), Fujifilm (6), Hitachi Smelting (3), Byd (3) (4), Hyundai_kia (3) Lixin Energy Sci. & Tech. Toshiba (1), Shanghai segments Zosen (5), Samsung (5) (1), Quantumscape (1) Energy New Mat. Tech. (1) All Players (54) All Players (26) All Players (14) All Players (16) Toyota (7), Qingdao Inst. Of Bioenergy Toyota (4), Idemitsu Kosan (4), Qingdao Inst. Zotye Int. (3), Toyota (2), Qingdao Inst. Of Bioenergy & Bioprocess & Bioprocess Tech. (4), Idemitsu Kosan Of Bioenergy & Bioprocess Tech. (2), Fujifilm Northwestern Univ. (1), Tsinghua Univ. Tech. (2), Toyota (2), Hitachi Zosen (2), - -

(All) (4), Fujifilm (3), Zotye Int. (3), Soundon (2), KIST (2), Chengdu New Keli Chemical (1), Unist (1), Mitsui Mining & Smelting Z.J. Energy Tech. (2), Soundon New Sulfides New Energy Tech. (3), KIST (3) Science (1), Shanshan New Mat. (1) (1), Byd (1), KIST (1), Arlanxeo (1) Energy Tech. (2) All Players (12) All Players (9) All Players (2) All Players (1) Idemitsu Kosan (4), Fujifilm (1), Idemitsu Kosan (4), Fujifilm (1), Mitsui Tsinghua University (1), Unist (1) Qingdao Institute Of Bioenergy & Tsinghua University (1), Unist (1), Mining & Smelting (1), Zhejiang University Bioprocess Technology (1) - -

Mitsui Mining & Smelting (1), Keri (1) (1), Keri (1) Argyrodites All Players (6) All Players (3) All Players (2) All Players (1) KIST (3), Samsung (1), Kit (1), KIST (2), KERI (1) Korea Institute Of Science & Samsung (1), Kit (1) - -

Shenzhen Mitai New Materials Technology (1), Shenzhen Mitai New Sulfide glasses Research Center (1), Keri (1) Materials Research Center (1) All Players (4) All Players (3) All Players (1)

- Shanshan New Materials (1), Qingdao Shanshan New Materials (1), Toyota (1), Qingdao Inst. Of Bioenergy & Bioprocess Inst. Of Bioenergy & Bioprocess Mitsubishi Chemical_materials (1) - Tech. (1) - -

Thio Tech.(1), Toyota (1), Mitsubishi LISICON Chemical_materials (1) All Players (6) All Players (4) All Players (2) All Players (1) Chengdu New Keli Chemical Science Chengdu New Keli Chemical Science (1), Toyota (2) Chengdu New Keli Chemical Science (1) (2), Toyota (2), Saft_total (1), Cnrs (1), Toyota (1), Saft_total (1), Cnrs (1), Univ. Paris - -

Other Univ. Paris Est (1), Solid Power (1), Est (1), Solid Power (1), Stanford Univ. (1) sulfides Stanford Univ. (1) All Players (28) All Players (9) All Players (8) All Players (12) Toyota (4), Zotye International (3), Qingdao Inst. Of Bioenergy & Bioprocess Zotye Int.l (3), Northwestern Toyota (2), Hitachi Zosen (2), Zhejiang Soundon New Energy Technology (3), Tech. (2), Toyota (2), Fujifilm (1), Panasonic University (1), Mitsui Mining & Jima Energy Tech. (2), Soundon New - -

List of List Hitachi Zosen (2), Fujifilm (2), Zhejiang (1), Soundon New Energy Tech. (1), Idemitsu Smelting (1), Byd (1), Arlanxeo (1), Energy Tech. (2), Bosch_seeo (1), Fujifilm sulfides Jima Energy Tech. (2) Kosan (1) Polyplus Battery (1) (1), Hyundai_kia (1), Shin Etsu Chem. (1)

Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 24 © 2019 All rights reserved | www.knowmade.com NEW PATENT APPLICATIONS – Q1 2019 The numbers represent the number of patent families. Electrolyte materials vs. Supply chain (4/5) One patent family can belong to multiple segments. All segments Electrolyte Electrode Battery cell Battery pack Separator All Players (288) All Players (123) All Players (76) All Players (82) All Players (5) All Players (7) Toyota (22), Bosch_seeo (21), Lg Chem LG Chem (8), Toyota (6), Fujifilm (5), LG Chem (6), Toyota (5), Bosch_seeo (5), Bosch_seeo (12), Toyota (11), Hitachi Toyota (1), Bosch_seeo (1), LG Chem (2), Byd (2),

All All (18), Byd (8), Soundon New Energy Bosch_seeo (4), Idemitsu Kosan (4) Zotye Int. (3), Mitsui Mining & Smelting Zosen (4), Soundon New Energy Tech. Bmw (1), Quantumscape Shandong Univ. (1),

segments Technology (7), Fujifilm (6) (3), Byd (3) (4), Hyundai_kia (3) (1) Toshiba (1) All Players (83) All Players (45) All Players (24) All Players (16) All Players (2) Fengchao Energy Tech. (3), Lg Chem Changsha Research Inst. Of Mining & Lg Chem (3), Mitsui Mining & Smelting (3), Murata / Sony (2), HIT (1), Hitachi Zosen Shandong Univ. (1), (3), Toyota (3), Unist (3), Murata / Metallurgy (3), Fengchao Energy Tech. Beijing Easpring Material Tech. (2), Unist (1), Bosch_seeo (1), Northwestern Univ. Toshiba (1) - Sony (3), Mitsui Mining & Smelting (3), (2), Great Wall Motor (2), Henan Univ. (2), Fengchao Energy Tech. (1), Nanchang (1), Univ. Of Maryland (1), Easpring (1),

Oxide Oxide (all) Byd (3), Kiit (3), Suzhou Qingtao New (2), Toyota (2), Fdk (2), Hitachi Metals University (1), Central South University Tsinghua Univ. (1), Tohoku Univ. (1), Energy Tech. (3) (2), Byd (2), Wuhan Univ. (2) (1), Toyota (1), Samsung (1) Soundon New Energy Tech. (1) All Players (2) All Players (1) All Players (1)

Hitachi Zosen (1), Tohoku University Jeongkwan (1) - Hitachi Zosen (1), Tohoku Univ. (1) - -

glass glass Oxide Oxide

ceramic (1), Jeongkwan (1) All Players (6) All Players (3) All Players (3) All Players (1) - Fengchao Energy Tech. (2), Great Wall Fengchao Energy Technology (2), Great Lg Chem (2), Unist (1), Georgia Tech (1), Sila Nanotechnologies - -

Anti Motor (2), Lg Chem (2), Unist (1), Wall Motor (2), Georgia Tech (1), Sila (1), Us Army (1)

Georgia Tech (1), Sila Nanotech. (1) Nanotechnologies (1), Us Army (1) perovskites All Players (6) All Players (3) All Players (1), All Players (2), Changsha Research Inst. Of Mining & Changsha Research Institute Of Mining Chengdu University Of Technology (1), Qingtao Energy Development (1), Power - - Metallurgy (2), Byd (1), Qingtao Energy & Metallurgy (2), Byd (1) Ruyuan Dong Yang Guang Materials (1) Iv (1)

Development (1), Power Iv (1) Perovskites All Players (1) All Players (1) LISICON - - - - Murata / Sony (1) Murata / Sony (1) All Players (30) All Players (17) All Players (5) All Players (8) All Players (1) Toyota (3), Kiit (3), Suzhou Qingtao Toyota (2), Wuhan University (2), Toyota (1), University Of Science & Murata / sony (2), HIT (1), Bosch_seeo Shandong University (1) New Energy Technology (3), Murata Jiangsu Higee New Energy (2), Kiit (2), Technology Beijing (1), Northwestern (1), Northwestern Univ. (1), Qingtao - Manufacturing_sony (2), Wuhan Qingtao New Energy Tech. (2), University (1), Shanghaitech University (1), Energy Development (1), Kiit (1), Suzhou Garnet University (2), Jiangsu Higee New Politecnico Di Torino (1), Hitachi Metals Chengdu Univ. Of Technology (1) Qingtao New Energy Technology (1) Energy (2) (1), Univ. Of Arizona (1) All Players (8) All Players (5) All Players (3) All Players (1) Fdk (2), Central South Univ. (1), Lg Fdk (2), Central South University (1), Central South University (1), Lg Chem (1), Soundon New Energy Technology (1) Chem (1), Easpring Material Tech. (1), Sumita Optical Glass (1), Guizhou Beijing Easpring Material Technology (1), - -

Soundon New Energy Tech. (1), Unist Meiling Power Supply (1) Unist (1) NASICON (1), Sumita Optical Glass (1)

Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 25 © 2019 All rights reserved | www.knowmade.com NEW PATENT APPLICATIONS – Q1 2019 The numbers represent the number of patent families. Electrolyte materials vs. Supply chain (5/5) One patent family can belong to multiple segments. All segments Electrolyte Electrode Battery cell Battery pack Separator All Players (288) All Players (123) All Players (76) All Players (82) All Players (5) All Players (7) Toyota (22), Bosch_seeo (21), Lg Chem Lg Chem (8), Toyota (6), Fujifilm (5), Lg Chem (6), Toyota (5), Bosch_seeo (5), Bosch_seeo (12), Toyota (11), Hitachi Toyota (1), Bosch_seeo (1), LG Chem (2), Byd (2),

All All (18), Byd (8), Soundon New Energy Bosch_seeo (4), Idemitsu Kosan (4) Zotye Int. (3), Mitsui Mining & Smelting Zosen (4), Soundon New Energy Tech. Bmw (1), Quantumscape Shandong Univ. (1),

segments Technology (7), Fujifilm (6) (3), Byd (3) (4), Hyundai_kia (3) (1) Toshiba (1) All Players (4) All Players (2) All Players (1) All Players (1)

Shandong Univ. (1), Hitachi Metals (1), Shandong University (1), Hitachi Metals Guangdong Univ.(1) Showa Denko (1) - - Other oxides Showa Denko (1), Guangdong Univ. (1) (1) All Players (31) All Players (15) All Players (12) All Players (4) All Players (1) Mitsui Mining & Smelting (3), Henan Henan Normal Univ. (2), Hitachi Mitsui Mining & Smelting (3), Fengchao Hitachi Zosen (1), Univ. Of Maryland (1), Toshiba (1) -

Normal University (2), Toshiba (2), Byd Chemical (2), Panasonic_sanyo (1), Unist Energy Tech. (1), Samsung (1), Toshiba (1), Easpring Material Technology (1),

List List of oxides (2), Hitachi Chemical (2) (1), Murata / sony (1), Byd (1) Easpring (1), Byd (1), Sekisui Chem. (1) Tsinghua Univ. (1), Tohoku Univ. (1) All Players (7) All Players (3) All Players (1) All Players (3) Hitachi Zosen (3), Saft (1), Cnrs (1), Saft_total (1), Cnrs (1), Univ. Paris Est Jiangxi Zhongqi Ruihua New Energy Tech. Hitachi Zosen (3), Tohoku University (1) Univ. Paris Est (1), Fujifilm (1), Tohoku (1), Fujifilm (1), Univ. Of Shanghai (1) (1) - -

Univ. (1), Jiangxi Zhongqi Ruihua New Hydrides Energy Tech. (1), Univ. Of Shanghai All Players (8) All Players (6) All Players (3) Other Bosch_seeo (3), Soundon New Energy - Bosch_seeo (2), Soundon New Energy Bosch_seeo (1), Northwestern - - inorganic Technology (2) Technology (2) University (1), Amity University (1) All Players (34) All Players (15) All Players (6) All Players (10) All Players (5) Lg Chem (4), Bosch_seeo (2), Samsung Bosch_seeo (2), Samsung (2), Amperex / Tdk (2), ETRI (1), Shandong Lg Chem (2), Tianmu Energy Anode Lg Chem (2), Byd (2), (2), Byd (2), China Electronic Tech. (2), Corning(2), Aecc Beijing Inst. Of Yuhuang New Energy Tech. (1), China Material (2), Central South Univ. (1), Shanghai Energy New - inorganics Amperex / tdk (2), Tianmu Energy Aeronautical Materials (2), Chengdu Electronic Tech. (1), Beijing Weilan New Toshiba (1), China Electronic Tech. (1), Materials Tech. (1) Anode Material (2), Corning (2), Aecc New Keli Chemical Science (1), Fujifilm Energy Tech. (1) Aac Technologies (1)

List List of Beijing Inst. Of Aeronautical Mat. (2) (1), China Electronic Tech. (1) All Players (36) All Players (7) All Players (12) All Players (16) All Players (1) Toyota (8), Bosch_seeo (3), Fujifilm Fujifilm (3), Lg Chem (1), Bosch_seeo Toyota (2), Z.Z. New Energy Tech. (2), Ngk Toyota (6), Hyundai (2), Hitachi Zosen Quantumscape (1) (3), Hyundai_kia (3), Hitachi Zosen (2), (1), Shanghai Univ. (1), Suzhou Inst. Of (2), Hitachi Zosen (1), Bosch_seeo (1), (1), Bosch_seeo (1), Nims (1), Panasonic -

Nims (2), Hitachi Metals (2), Nano Tech. & Nano Bionics (1) Wildcat Discovery Tech. (1), Nims (1), (1), Soundon New Energy Tech. (1), inorganics Undefined Zhongneng Zhongke New Energy Tech. Toshiba (1), Hyundai (1), Hitachi Metals Hitachi Metals (1), Ada Tech. (1) (2), Ngk (2) (1)

Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 27 © 2019 All rights reserved | www.knowmade.com NEW GRANTED PATENTS – Q1 2019 Main patent owners Ranking of main patent assignees for new granted patents (Q1 2019) 9 70+ patent assignees

7 The numbers represent the number of new granted patent families. 6 R&D labs Both Material and Battery manufacturers 5 5 4 4 Material manufacturers Electronic component manufacturers

2 2 2 2 2 2 2 2 2 2 2 Battery manufacturers End-Users and integrators

• More than 75% of patent assignees with new granted patent families in Q1 2019 have only 1 patent family newly granted in Q1 2019.

• There are other notable patent assignees with newly granted patent families in Q1 2019.: • Blue Solutions/Bolloré: Its newly granted patent family is related to battery with electrochemical cells having variable impedance (US10224578).

• Hyundai/Kia: Its newly granted patent family is related to sulfide-based solid electrolyte (Li2S-P2S5-Ni3S2) and its preparation method (EP3324477). • Murata/Sony: Its newly granted patent family is related to laminated solid battery (JP6446768). • TDK: Its newly granted patent family is related to li-ion conductive oxide ceramic material including garnet-type or similar crystal structure (US10218032). • Quantumscape: Its newly granted patent family is related to high surface area anode including an anolyte layer with volume expansion features (US10205155). • Ionic Materials: Its newly granted patent family is related to solid ionically conducting polymer material (US10199657). • Soitec: Its newly granted patent family is related to monocrystalline solid electrolyte and its fabrication method (EP3076463). • Zeon: Its newly granted patent family is related to all-solid secondary battery (EP3276734). • CATL: Its newly granted patent family is related to positive electrode material for lithium ion battery, its preparation method and its use in Li-ion battery (CN105428637). • Schott: Its newly granted patent family is related to oxide glass ceramics for rechargeable lithium ion storage battery (EP3063807).

The numbers represent the number cell oxides

of patent families. One patent family sulfides

materials LISICON

inorganics

perovskites

can belong to multiple segments. Garnet

LISICON

Polymer Polymer

ceramics

Hydrides

Inorganic

NASICON

Electrode Electrode

Separator

Oxide (all) Oxide inorganics

Inorganic/

Undefined

Electrolyte

Oxide glass Oxide

Battery

Perovskites

Argyrodites

electrolytes

Battery pack Battery (All) Sulfides

Other

List of oxides of List

Thio

Other

List of sulfides of List

Sulfide glasses Sulfide

Undefined solid solid Undefined

List of of List

Anti

Other List of of List All Players 52 17 28 2 7 60 19 13 1 4 21 3 11 2 6 38 3 2 5 15 7 8 1 3 9 19 Toyota 5 5 7 2 3 3 2 1 1 4 Fujifilm 3 2 2 2 5 3 3 2 2 2 1 LG Chem 1 1 4 2 1 1 1 1 4 Samsung 1 2 2 1 4 1 3 1 1 1 1 1 NGK 2 3 3 1 1 3 2 1 1 Bosch_seeo 2 1 1 3 1 2 1 1 1 1 1 Kiit 2 1 1 2 1 1 3 2 1 Fdk 1 1 2 1 1 1 Beijing University 2 2 Anhui Weigelu New Energy Tech. 2 2 Panasonic_sanyo 2 2 2 Idemitsu Kosan 2 2 2 2 KIST 1 1 2 2 2 Ming Chi Univ. 2 2 2 1 1 Dow_corning 2 2 2 1 1 Shandong Rui Sen New Energy Tech. 2 2 2 2 Fujitsu 1 1 2 1 1 Furukawa 2 2 1 1 1

All segments Electrolyte Electrode Battery cell Battery pack Separator The numbers represent the number of patent families. All segments 104 52 17 28 2 7 One patent family can belong to multiple segments. Inorganic 60 33 10 18 1 Inorganic/ Polymer 19 8 5 5 1 • Newly granted patents are mainly related to Electrolyte and Battery Polymer 13 11 1 1 cells. There are only few new granted patents related to Battery pack List of materials 1 1 (Bosch/SEEO, Samsung) and separator (LG Chem, Chinese companies). Undefined solid electrolytes 4 4 • New granted patents are mainly related to inorganic solid Sulfides (All) 21 14 3 5 electrolytes, almost equivalently sulfide and oxide solid electrolytes. Argyrodites 3 3 In fact, both of them have advantages and drawbacks and that the Sulfide glasses 11 9 1 2 choice of electrolyte material is not obvious. There are also numerous Thio-LISICON 2 2 newly granted patents related to inorganic/polymer and polymer solid Other sulfides electrolytes. List of sulfides 6 1 2 3 • Newly granted patents on polymer electrolytes are almost exclusively Oxide (all) 38 22 11 5 related to electrolyte material. On the contrary, newly granted Oxide glass ceramics 3 1 1 1 patents on inorganic and inorganic/polymer electrolytes are related Anti-perovskites 2 2 to electrolyte, electrode and battery cell. Contrary to patents on Perovskites 5 3 1 1 electrode and battery cells, patents on electrolytes are related to all LISICON type of solid electrolytes. Patents on electrode and battery cells Garnet 15 11 2 2 related to inorganic and inorganic/polymer solid electrolytes mainly NASICON 7 3 3 1 mention several inorganic materials. Other oxides • Sulfide Glass Ceramic and Garnet are the main inorganic materials List of oxides 8 3 4 1 mentioned in newly granted patents. There is also numerous newly Hydrides 1 1 granted patents on NASICON and Perovskites. Other inorganics 3 3 List of inorganics 9 2 2 1 5 Undefined inorganics 19 3 2 12 1 1

Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 30 © 2019 All rights reserved | www.knowmade.com NEW GRANTED PATENTS – Q1 2019 The numbers represent the number of patent families. Electrolyte materials vs. Supply chain (2/3) One patent family can belong to multiple segments. All Segments Electrolyte Electrode Battery Cell All Players (104) All Players (52) All Players (17) All Players (28) All Toyota (9), Fujifilm (7), LG Chem (6), Samsung (5), Toyota (5), Fujifilm (3), Bosch/Seeo (2), Beijing Univ. Ngk (3), Samsung (2), Fujifilm (2), Ming Chi Univ. Of Toyota (5), Samsung (2), Anhui Weigelu New Ener. Segments NGK (5), Bosch/SEEO (4), KIIT (4) (2), Idemitsu Kosan (2), Kiit (2), Corning (2), Ngk (2), Tech. (2), Furukawa (2), Lg Chem (1), KIER (1), KIST (1), Tech. (2), Fujifilm (2), Panasonic (2), Fdk (1), Shandong RuiSen New Energy Tech. (2), CSU (1) Z. Z. New Energy Tech. (1), Kiit (1) Bosch/Seeo (1), Blue Solutions (1), Murata (1), Geely (1) All Players (60) All Players (33) All Players (10) All Players (18) Toyota (7), Samsung (4), Ngk (3), Lg Chem (2), Fdk Toyota (4), Idemitsu Kosan (2), Dow_corning (2), Ngk Ming Chi Univ. (2), Furukawa (2), Lg Chem (1), Samsung Toyota (4), Samsung (2), Panasonic_sanyo (2), Fdk (1), Inorganic (2), Fujifilm (2), Panasonic/Sanyo (2), Idemitsu (2), Shandong Rui Sen New Energy Tech. (2), Lg Chem (1), Fujifilm (1), KIST (1), Kiit (1), Ngk (1) Murata / Sony (1), Geely (1), Kiit (1), Jiangxi Xingying Kosan (2), KIST (2), Ming Chi Univ. (2) (1), Fdk (1), Samsung (1), Fujifilm (1) Technology (1), Space Charge (1) All Players (19) All Players (8) All Players (5) All Players (5) Inorganic/ Fujifilm (5), Bosch_seeo (3), Toyota (2), Samsung Fujifilm (2), Toyota (1), Bosch_seeo (1), Kiit (1), Suzhou Samsung (1), Fujifilm (1), KIER (1), Zhongneng Zhongke Fujifilm (2), Toyota (1), Bosch_seeo (1), Zeon (1) Polymer (1), KIER (1), Kiit (1), Quantumscape (1) Inst. Of NanoTech. (1), KRICT (1), Sun Yat Sen Univ. (1) New Energy Technology (1), Quantumscape (1), Ngk (1) All Players (13) All Players (11) All Players (1) Beijing Univ. (2), Central South Univ.(1), Beijing Univ. (2), Central South Univ. (1), Bosch/Seeo Blue Solutions_bollore (1) Polymer - Bosch/Seeo (1), Damipolychem (1), Chosun Univ. (1), Damipolychem (1), Chosun Univ. (1), Incheon Univ. (1), Blue Solutions (1), Kiit (1), Lintec (1) (1), Kiit (1), Lintec (1) List Of All Players (1) All Players (1) - - Materials NGK (1) NGK (1) Undefined All Players (4) All Players (4) Solid A. Weigelu New Ener.Tech. (2), Hefei Guoxuan High - - A. Weigelu New Ener.Tech. (2), Hefei Guoxuan High Electrolytes Tech Power Ener. (1), J. Tafel New Ener. Tech. (1) Tech Power Ener. (1), J. Tafel New Ener. Tech. (1) All Players (21) All Players (14) All Players (3) All Players (5) Sulfides Toyota (3), Fujifilm (3), Bosch_seeo (2), Idemitsu Toyota (3), Idemitsu Kosan (2), Lg Chem (1), Fujifilm (1), KIST (1), Furukawa (1) Toyota (1), Bosch_seeo (1), Fujifilm (1), Jiangxi Xingying (All) Kosan (2), KIST (2), Lg Chem (1), Hyundai_kia (1), Bosch_seeo (1), Fujifilm (1), Hyundai_kia (1), Keti (1), Tech. (1), Zeon (1) Keti (1), Zhejiang Univ. (1) KIST (1), Zhejiang Univ. (1) All Players (3) All Players (3) Argyrodites - - Bosch_seeo (1), Keti (1), Zhejiang University (1) Bosch_seeo (1), Keti (1), Zhejiang University (1) All Players (11) All Players (9) All Players (1) All Players (2) Sulfide Toyota (3), Idemitsu Kosan (2), KIST (2), Toyota (3), Idemitsu Kosan (2), Hyundai_kia (1), KIST KIST (1) Toyota (1), Zeon (1) Glasses Hyundai_kia (1), Zeon (1), Univ. Do Porto (1) (1), Univ. Do Porto (1) All Players (2) All Players (2) Thio-lisicon - - Lg Chem (1), Zhejiang University (1) Lg Chem (1), Zhejiang University (1) All Players (6) All Players (1) All Players (2) All Players (3) List Of Fujifilm (3), Bosch_seeo (1), Jiangxi Xingying Tech. Fujifilm (1) Fujifilm (1), Furukawa (1) Bosch_seeo (1), Fujifilm (1), Jiangxi Xingying Tech. (1) Sulfides (1), Furukawa (1)

Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 31 © 2019 All rights reserved | www.knowmade.com NEW GRANTED PATENTS – Q1 2019 The numbers represent the number of patent families. Electrolyte materials vs. Supply chain (3/3) One patent family can belong to multiple segments. All Segments Electrolyte Electrode Battery Cell All Players (104) All Players (52) All Players (17) All Players (28) All Toyota (9), Fujifilm (7), LG Chem (6), Samsung (5), NGK Toyota (5), Fujifilm (3), Bosch/Seeo (2), Beijing Univ. Ngk (3), Samsung (2), Fujifilm (2), Ming Chi Toyota (5), Samsung (2), Anhui Weigelu New Energy Segments (5), Bosch/SEEO (4), KIIT (4) (2), Idemitsu Kosan (2), Kiit (2), Corning (2), Ngk (2), Univ. (2), Furukawa (2), Lg Chem (1), KIER (1), Tech. (2), Fujifilm (2), Panasonic / Sanyo (2), Fdk (1), Shandong RuiSen New Energy Tech. (2), CSU (1) KIST (1), Z. Z. New Energy Tech. (1), Kiit (1) Bosch/Seeo (1), Blue Solutions (1), Murata (1), Geely (1) All Players (38) All Players (22) All Players (11) All Players (5) Samsung (3), Kiit (3), Ngk (3), Toyota (2), Fujifilm (2), Toyota (2), Dow_corning (2), Ngk (2), Shandong Rui Samsung (2), Ming Chi Univ. (2), Lg Chem (1), Bosch_seeo (1), Murata (1), Kiit (1), Space Charge (1), Oxide (All) Ming Chi Univ. (2), Corning (2), Shandong Rui Sen New Sen New Energy Technology (2), Fdk (1), Samsung (1), Fujifilm (1), KIER (1), Kiit (1), Quantumscape Schott (1) Ener. Tech. (2), Lg Chem (1), Fdk (1) Fujifilm (1), Sumita Optical Glass (1), TDK (1) (1), Ngk (1), Taiheiyo Cement (1) Oxide Glass All Players (3) All Players (1) All Players (1) All Players (1) Ceramics Lg Chem (1), Alpha (1), Schott (1) Alpha (1) Lg Chem (1) Schott (1) Anti- All Players (2) All Players (2) - - perovskites Samsung (1), Mit (1), Universidade Do Porto (1) Samsung (1), Mit (1), Universidade Do Porto (1) All Players (5) All Players (3) All Players (1) All Players (1) Perovskites Toyota (1), Ming Chi Univ. (1), Sichuan Univ. (1), Space Toyota (1), Sichuan University (1), Soitec (1) Ming Chi University Of Technology (1) Space Charge (1) Charge (1), Soitec (1) All Players (15) All Players (11) All Players (2) All Players (2) Kiit (2), Ngk (2), Shandong Rui Sen New Ener. Tech. (2), Ngk (2), Shandong Rui Sen New Energy Tech. (2), Samsung (1), Quantumscape (1) Bosch_seeo (1), Kiit (1) Garnet Toyota (1), Bosch_seeo (1), Samsung (1), Tdk (1), Corning Toyota (1), Tdk (1), Kiit (1), Corning (1), Shanghai Univ. (1), Shanghai Univ. (1) (1), NIAIST (1), Nagoya Inst. Of Tech. (1) All Players (7) All Players (3) All Players (3) All Players (1) Nasicon Fdk (1), Samsung (1), Murata (1), KIER (1), Sumita Optical Fdk (1), Sumita Optical Glass (1), Dow_corning (1) Samsung (1), KIER (1), Kiit (1) Murata Manufacturing_sony (1) Glass (1), Kiit (1), Corning (1) All Players (8) All Players (3) All Players (4) All Players (1) List Of Fujifilm (2), Ming Chi Univ. (1), Ngk (1), Taiheiyo Cement Fujifilm (1), Soitec (1), Shinshu University (1) Fujifilm (1), Ming Chi University Of Technology Space Charge (1) Oxides (1), Space Charge (1), Soitec (1), Shinshu Univ. (1) (1), Ngk (1), Taiheiyo Cement (1) Hydrides All Players (1), Fudan University (1) All Players (1), Fudan University (1) - - Other All Players (3) All Players (3) Inorganics Fudan University (1), Keti (1), Fujitsu (1) Fudan University (1), Keti (1), Fujitsu (1) All Players (9) All Players (2) All Players (2) List Of Lg Chem (4), Fujifilm (2), Samsung (1), Yonsei Univ. (1), Fujifilm (1), Sun Yat Sen University (1) - Samsung (1), Fujifilm (1) Inorganics Sun Yat Sen Univ. (1), Toray Ind. (1) All Players (19) All Players (3) All Players (2) All Players (12) Undefined Toyota (4), Panasonic (2), Fdk (1), Bosch (1), Samsung Fujifilm (1), Suzhou Inst. Of NanoTech. (1), Krict (1) Zhongneng Zhongke New Energy Technology Toyota (4), Panasonic_sanyo (2), Fdk (1), Samsung (1), Inorganics (1), Fujifilm (1), Fujitsu (1), Catl (1), Geely (1) (1), Ngk (1), Furukawa (1) Geely (1), Fujitsu (1), Catl (1) Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 32 © 2019 All rights reserved | www.knowmade.com Most notable abandoned or expired patents

Publication Assignee STATUS TOPIC OF THE PATENT number

Dai Nippon Screen Manufacturing US8920522 ABANDONED Solid-state battery manufacturing by nozzle scan coating method and corresponding battery

Samsung Sdi US7879477 ABANDONED Polymer battery pack

Lithium ion-conductive solid electrolyte (Sulfide Glass Ceramics), its manufacturing method and its Idemitsu Kosan / NIMS TWI364862 ABANDONED use in battery

EP1780224 ABANDONED Multibranched polymers and its production process Nippon Soda US7919570

Sumitomo Electric Industries US7150943 ABANDONED Inorganic solid electrolyte (Sulfide Glass Ceramics) and lithium cell component

US6410182 EXPIRED Protective coating for separators for electrochemical cells Sion Power US6423444

Polyplus Battery US6723140 EXPIRED Plating metal negative electrodes under protective coatings

Polyplus Battery AU745287 EXPIRED Encapsulated lithium electrodes having glass protective layers and method for their preparation

Daiso EP0945476 EXPIRED Crosslinked solid polyether copolymer electrolyte

USXXXXXXX Click to link pdf document Notable patents were selected on the basis of their citations, family size, patented technology, and impact in the field.

If a patent is dead (expired or abandoned), is it possible to make the formerly patented product? An expired patent cannot be asserted against competitors. However, other live patents may still cover different parts, features or combinations described in the expired patent. Moreover, in some countries, a lapsed patent can be reinstated/restored by paying an additional fee plus the maintenance fee, and reasoning that delay or nonpayment of the maintenance fee within the prescribed period was unintentional.

Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 35 © 2019 All rights reserved | www.knowmade.com FOCUS ON MAIN IP PLAYERS – Q1 2019 TOYOTA - Overview The numbers represent the number of patent families. All segments Electrolyte Electrode Battery cell Battery pack Separator This quarter, the company has: One patent family can belong New New New New New New New New New New New New 22 NEW PATENT APPLICATIONS to different segments. application granted application granted application granted application granted application granted application granted 9 NEWLY GRANTED PATENTS All segments 22 9 6 5 5 11 5 1 0 PATENT TRANSFERT Inorganic 16 7 4 4 4 8 4 0 DEAD PATENT Inorganic/ Polymer 1 2 1 1 1 Polymer • Toyota combines a high number of newly List of materials granted patents with a significant number Undefined solid electrolytes 4 3 1 of new patent applications in Q1 2019 Sulfides (All) 7 3 4 3 2 2 1 indicating that it keeps strengthening its IP Argyrodites position in the field of solid-state batteries. Sulfide glasses 3 3 1 • New patent applications and newly Thio-LISICON 1 1 granted patent families of Toyota in Q1 Other sulfides 2 1 2 2019 are mainly related to Inorganic solid List of sulfides 4 2 2 electrolytes (both sulfide and oxide solid Oxide (all) 3 2 2 2 1 electrolytes). Sulfide solid electrolytes are Oxide glass ceramics Thio-LISICON, other of sulfide and list of sulfide in new patent applications and Anti-perovskites Sulfide Glass Ceramics in new granted Perovskites 1 1 patents. Oxide solid electrolytes are LISICON Garnet in new patent applications and Garnet 3 1 2 1 1 Garnet and Perovskite in new granted NASICON patents. This could indicate a strategic Other oxides move on the choice of solid electrolyte List of oxides materials. Hydrides • New patent applications and granted Other inorganics patents are related to all supply chain List of inorganics segments (except electrode for new Undefined inorganics 8 4 2 6 4 granted patents).

Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 36 © 2019 All rights reserved | www.knowmade.com FOCUS ON MAIN IP PLAYERS – Q1 2019 TOYOTA - Notable patents selected by Knowmade analyst

PATENT NUMBER TYPE TOPIC OF THE PATENT PATENT DETAILS In a vehicle, a battery pack is loaded between a pair of framework members arranged at both outsides in a vehicle width direction. The Battery pack: Vehicular battery loading battery pack comprises two battery modules arranged side by side in the vehicle width direction. The battery modules have laminated NEW PATENT JP2019050170 structure for solid-state batteries that is bodies having a plurality of battery cells laminated in the vehicle width direction. The laminated bodies have all-solid batteries having solid APPLICATION light-weighted and can secure rigidity. electrolytes. The battery modules have binding members which bind the laminates bodies in a lamination direction of the battery cells. In the two battery modules, at least parts of the binding members are formed integrally with each other. The present invention relates to a compound represented by the general formula Li M ZS , wherein 0.3 < x < 0.9; Electrolyte / Thio-LISICON: New lithium 2+2x 1-x 4 M = Pb, Mg, Ca, Ge and/or Sn; Z = Ge, Si, Sn and/or Al. The present invention also relates to a preparation method of this material, mixed metal sulfide with high ionic NEW PATENT comprising the steps of: (a) providing a mixture of lithium sulfide Li S, sulfides MS and ZS , in a stoichiometric ratio ensuring Li M ZS to WO2019007501 conductivity (Li M ZS ; 0.3 < x < 0.9; 2 2 2+2x 1-x 4 APPLICATION 2+2x 1-x 4 be obtained, wherein M, Z and x are as defined above; (b) pelletizing the mixture prepared in step (a); (c) heating at a maximum plateau M = Pb, Mg, Ca, Ge and/or Sn; Z = Ge, Si, temperature. In still another aspect, the present invention relates to a use of the compound of the present invention as a solid electrolyte, Sn and/or Al. in particular in an all solid-state lithium battery. Electrolyte / Other sulfide: Method for A method for producing a sintered component being a solid electrolyte and/or an electrode including sulfur for an all-solid state battery, producing solid electrolyte and electrode the method including mixing powders so as to obtain a powder mixture, at least one of the powders comprising sulfur, pressing a NEW PATENT WO2019025012 for all-solid-state batteries (Sintered component with the powder mixture and sintering the component under a partial pressure of sulfur comprised between 150 Pa and 0,2 APPLICATION component: XTi2(PS4)3and/or XZr2(PS4)3, MPa so as to obtain a sintered component comprising sulfur. The sintered component comprises XTi2(PS4)3and/or XZr2(PS4)3, X being lithium with X=Li, Na, Ag) (Li), sodium (Na) or silver (Ag). The present invention relates to a curable composition for preparing a composite polymer electrode, the curable composition containing: NEW PATENT Electrolyte / Inorganic-Polymer / Garnet: (A) a Li-ion conducting solid electrolyte whose general composition has the formula: Li MII MIII MIV MVO wherein MII, MIII, MIV, APPLICATION (co- 7+x-y x 3-x 2-y 12 Composite polymer electrolyte (cpe) MV are species of valence II to V; where 0 ≤ x < 3 and 0 ≤ y < 2; (B) a polymer; (C) a lithium salt; (D) an active plasticizer; and (E) a WO2019052648 filed with membranes for secondary solid state li- photoinitiator. The invention also relates to a process of preparing the curable composition, cured compositions and films derived from the Politechnico Di metal cells and its production process curable composition, and solid-state lithium batteries whose solid electrolyte layer contains a cured composition or a cured film according Torino) to the invention.

NEW PATENT Disclosed is an all-solid-state lithium ion secondary battery excellent in cycle characteristics. The battery may be an all-solid-state lithium APPLICATION (co- Battery Cell / List of sulfides: All-solid- ion secondary battery, wherein an anode comprises anode active material particles, an electroconductive material and a solid electrolyte; US20190013541 filed with Shin state lithium ion secondary battery wherein the anode active material particles comprise at least one active material selected from the group consisting of elemental silicon Etsu Chemical) and SiO; and wherein a BET specific surface area of the anode active material particles is 1.9 m 2 /g or more and 14.2 m 2 /g or less.

Electrolyte / Sulfide Glass Ceramics: The object of the invention is to provide a sulfide solid electrolyte material with high heat stability. In the invention, the object is achieved NEW GRANTED Sulfide solid electrolyte material, its by providing a sulfide solid electrolyte material comprising an ion conductor having (i) a Li element and (ii) an anion structure containing at US10361451 3− 3− 3− PATENT production method and its use in Lithium least a P element, wherein a main component of the anion structure is PS4 , and the ion conductor has the PS4 and PS3O as the anion 3− 3− solid battery structure, but has neither PS2O2 nor PSO3 .

USXXXXXXX Clickable link to pdf document Notable patents were selected on the basis of their technical interest, citations received from other patents, family size, current legal status, scope of the claims, and impact in the field. Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 37 © 2019 All rights reserved | www.knowmade.com FOCUS ON MAIN IP PLAYERS – Q1 2019 LG Chem - Overview The numbers represent the number of patent families. All segments Electrolyte Electrode Battery cell Battery pack Separator This quarter, the company has: One patent family can belong New New New New New New New New New New New New 18 NEW PATENT APPLICATIONS to different segments. application granted application granted application granted application granted application granted application granted 6 NEWLY GRANTED PATENTS All segments 18 6 8 1 6 1 2 2 4 0 PATENT TRANSFERT Inorganic 3 2 1 3 1 0 DEAD PATENT Inorganic/ Polymer 3 1 2 Polymer 8 7 1 • LG Chem combines a high number of List of materials 2 2 newly granted patents with a significant Undefined solid electrolytes number of new patent applications in Q1 Sulfides (All) 1 1 2019 indicating that it keeps strengthening Argyrodites its IP position in the field of solid-state Sulfide glasses batteries. Thio-LISICON 1 1 • New patent applications of LG Chem in Q1 Other sulfides 2019 are mainly related to Polymer solid List of sulfides electrolytes whereas new granted patents Oxide (all) 3 1 3 1 of LG Chem in Q1 2019 are only related to Oxide glass ceramics 1 1 inorganic solid electrolytes. LG Chem Anti-perovskites 2 2 holds also several new patent applications Perovskites on inorganic and inorganic/polymer solid electrolytes (notably with anti-perovskite LISICON materials). Garnet NASICON 1 1 • New patent applications of LG Chem in Q1 Other oxides 2019 are mainly related to electrolytes and electrodes whereas new granted List of oxides patents of LG Chem in Q1 2019 are mainly Hydrides related to separators containing inorganic Other inorganics solid electrolytes materials. List of inorganics 4 4 2 2 4 Undefined inorganics 1 1

Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 38 © 2019 All rights reserved | www.knowmade.com FOCUS ON MAIN IP PLAYERS – Q1 2019 LG Chem - Notable patents selected by Knowmade analyst

PATENT NUMBER TYPE TOPIC OF THE PATENT PATENT DETAILS NEW PATENT Electrolyte / Polymer: Polymer The present invention relates to a polymer electrolyte comprising a poly(ethylene oxide) (PEO) polymer; and a lithium salt, wherein an end of WO2019059705 APPLICATION electrolyte and its preparation the polyethylene oxide polymer is substituted with a nitrogen compound functional group or a phosphor compound functional group, and to (Co-filed with POSTECH) method a preparation method therefor. Electrolyte / Polymer: The present invention relates to: a lithium secondary battery solid electrolyte composition in which an alkylene oxide and a monomer Secondary battery solid containing a cross-linking functional group are grafted on a fluorine-based polymer; and a secondary battery solid electrolyte formed by NEW PATENT WO2019054622 electrolyte composition and thermosetting the composition. The present invention can provide a secondary battery solid electrolyte having greatly improved ion APPLICATION solid electrolyte prepared conductivity and electrochemical stability, by graft-copolymerizing an alkylene oxide and a monomer containing a cross-linking functional therefrom group onto a fluorine-based polymer having a high Li-ion conductivity. The present invention relates to a lithium solid secondary battery produced as an anode-free battery and having a lithium metal formed on an Battery / List of solid anode current collector in the form of a three-dimensional structure by means of charging. The lithium secondary battery forms the lithium NEW PATENT WO2019045399 electrolytes: Lithium secondary metal in a state of being blocked off from air, such that a native oxide layer, which is conventionally formed on an anode, is not generated at all, APPLICATION battery and the lithium metal is formed on the anode current collector in the form of a three-dimensional structure, thereby having an excellent lithium dendrite growth inhibiting effect. Therefore, it is possible to prevent reduction of battery efficiency and service life characteristics. The present invention relates to a positive electrode for a lithium secondary battery, its manufacturing method and its use in lithium secondary Electrode / NASICON: Positive battery. The positive electrode comprises a positive electrode mixture layer formed on a positive electrode current collector. The positive NEW PATENT electrode for lithium secondary electrode mixture layer comprises a positive electrode active material and a lithium ion additive, i.e. a lithium ion conductive ceramic WO2019013511 APPLICATION battery, manufacturing method material having a structure in which lithium ions are additionally inserted into empty sites having a Na super ionic conductors-type (NASICON- (Co-filed with UNIST) therefor, and lithium secondary type) structure and following chemical formula: Li M1 M2 (PO ) wherein, M1 = Ti and/or Ge; M2 = Al, Cr, Ga, Fe, Sn, In, Lu, Y, and/or La; battery comprising same 1+x1+y1 2-x1 x1 4 3 and 0

Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 39 © 2019 All rights reserved | www.knowmade.com FOCUS ON MAIN IP PLAYERS – Q1 2019 Bosch/SEEO - Overview The numbers represent the number of patent families. All segments Electrolyte Electrode Battery cell Battery pack Separator This quarter, the company has: One patent family can belong New New New New New New New New New New New New 21 NEW PATENT APPLICATIONS to different segments. application granted application granted application granted application granted application granted application granted 4 NEWLY GRANTED PATENTS All segments 21 4 4 2 5 12 1 1 1 0 PATENT TRANSFERT Inorganic 4 1 3 0 DEAD PATENT Inorganic/ Polymer 6 3 3 1 2 1 1 1 Polymer 3 1 1 1 1 2 • Even if Bosch announces that it abandons List of materials 2 1 1 EV battery making and it sells SEEO, Undefined solid electrolytes 6 5 1 Bosch/SEEO has a high number of new Sulfides (All) 1 2 1 1 1 patent applications in Q1 2019 indicating Argyrodites 1 1 that it keeps strengthening its IP position in Sulfide glasses the field of solid-state batteries. Thio-LISICON • New patent applications of Bosch/SEEO in Other sulfides Q1 2019 are equally related to Inorganic, List of sulfides 1 1 1 1 Inorganic/Polymer and Polymer solid Oxide (all) 1 1 1 1 electrolytes whereas there is no new Oxide glass ceramics granted patents of Bosch/SEEO in Q1 2019 Anti-perovskites on inorganic solid electrolytes. Perovskites • New patent applications of Bosch/SEEO in LISICON Q1 2019 are mainly related to Battery cell Garnet 1 1 1 1 whereas new granted patents of NASICON Bosch/SEEO in Q1 2019 are mainly related Other oxides to electrolytes. Bosch/SEEO also has a notable number of new patent families on List of oxides electrolyte (inorganic/polymer) and Hydrides electrode. Other inorganics 3 2 1 • List of inorganics 2 2 Bosch/SEEO has also one new patent application and one newly granted Undefined inorganics 3 1 1 1 1 1 patents on battery pack.

Solid-State Batteries – Patent Monitor | Quarterly Report – Q1 2019 40 © 2019 All rights reserved | www.knowmade.com FOCUS ON MAIN IP PLAYERS – Q1 2019 Bosch/SEEO - Notable patents selected by Knowmade analyst

PATENT NUMBER TYPE TOPIC OF THE PATENT PATENT DETAILS

Electrolyte / Battery / Inorganic- NEW PATENT Polymer : Mixed composite solid- An electrochemical cell includes a solid-state material that functions as an electrolyte and a separator within the electrode assembly. The solid- WO2019046041 APPLICATION state electrolyte for state material is a mixture of a polymer that is interspersed with an ionically conductive ceramic material. electrochemical cells

A solid composite battery separator is used to enable the use of a metal negative electrode in a battery. The metal negative electrode may be Electrolyte / Battery / Inorganic- lithium metal, sodium metal, magnesium metal, zinc metal, or alloys of the metals listed. The composite separator includes a matrix and NEW PATENT Polymer : Composite reinforced reinforcing material introduced into the matrix to increase fracture toughness of the composite separator. The composite separator WO2019034563 APPLICATION solid electrolyte to prevent comprises, either wholly or in part, a layer of reinforced polymer, ceramic or glassy lithium ion conductor. The matrix of the composite protrusions separator can include polyethylene oxide, LLZO, LiPON, or LATP. The reinforcing material of the composite separator can include fibers, particles, plates, or layers ; silicate glass, carbon nanotubes, silver nanowires, silicon carbide particles, and metallic particles.

An electrode configuration for a battery cell includes a positive electrode, a negative electrode, a separator interposed between the positive NEW PATENT Battery / Inorganic : Battery having US20190036158 electrode and the negative electrode, and a first single-ion conducting layer deposited on one of the separator, the positive electrode, and the APPLICATION a single-ion conducting layer negative electrode. The first single-ion conducting layer is formed as a continuous thin-film layer.

Synthesis and electrochemical properties of a new class of low-glass-transition-temperature electrochemical cell polymers based on Electrolyte / Polymer : NEW GRANTED polyalkoxysiloxanes is described. Unlike ethyleneoxide (EO)-based polymers, these materials are oxidatively stable above 4.2 V, the operating US10170792 Polyalkoxysiloxane catholytes for PATENT voltage of high energy cells that use cathode materials such as nickel cobalt aluminum oxide (NCA) and nickel cobalt manganese oxide (NCM). high voltage lithium batteries Use of these electrochemical cell polymers as catholyte alternatives to PEO in high voltage cells is described.

The invention relates to a method for producing a galvanic element which comprises the following steps: a) producing a layer sequence Battery / Inorganic-Polymer : comprising, in this order, a current conductor associated with an anode, an ion-conducting and electrically insulating separator, a cathode NEW GRANTED US20170054139 Galvanic element and method for having a cathode material containing lithium, and a current conductor associated with the cathode, and b) charging the galvanic element, PATENT the production thereof wherein an anode comprising metallic lithium forms between the current conductor associated with the anode and the separator during the charging of the galvanic element.

The present invention relates to a method for producing a lithium ion conducting composite material, especially a lithium ion conducting Electrolyte / Inorganic-Polymer: NEW GRANTED functional layer for a lithium cell. The composite material and functional layer are made of a composition containing particles of at least one US20160226097 Method of producing a lithium cell PATENT inorganic material designed for the production of a lithium ion conducting network without sintering, and of at least one polymer binder. The functional layer invention also relates to functional layers of this kind, to a lithium cell and lithium battery provided therewith, and to the use thereof.

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Examples: • Could you tell me more about the patent portfolio of this company? • What is exactly the invention claimed in these patents? • Can you give me the patents filed by this company on these specific technologies? • Can you shortly analyze the patents of this new entrant? • What are the patents issued in Japan and Korea for this application? • Please give me more details about this patent litigation. [email protected] • We want to file a new patent, can you help us to assess the prior-art in this field? • I would like to invalidate these patents, could you do a prior-art search? • Can you help me to identify in patents the technical solutions to solve this issue? • I would like to assess my freedom of operating in USA, can you give me the granted US patents covering this technology? • I am looking for free technologies I could use safely without infringing valid IP rights, can you give me newly expired patents related to this technology?

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