Design of New Sulfate-Based Positive Electrode Materials for Li- and Na-Ion Batteries Marine Reynaud

Total Page:16

File Type:pdf, Size:1020Kb

Design of New Sulfate-Based Positive Electrode Materials for Li- and Na-Ion Batteries Marine Reynaud Design of new sulfate-based positive electrode materials for Li- and Na-ion batteries Marine Reynaud To cite this version: Marine Reynaud. Design of new sulfate-based positive electrode materials for Li- and Na-ion batteries. Material chemistry. Université de Picardie Jules Verne, 2013. English. tel-01018912 HAL Id: tel-01018912 https://tel.archives-ouvertes.fr/tel-01018912 Submitted on 7 Jul 2014 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Ph.D. Dissertation Speciality: Materials Science presented at the Université de Picardie Jules Verne by Marine REYNAUD for the degree of Doctor of Philosophy of the Université de Picardie Jules Verne Design of new sulfate-based positive electrode materials for Li- and Na-ion batteries defended on 9 December 2013, post referees’ approval, in front of the committee: Dr. Robert DOMINKO Research Director Referee Dr. M. Rosa PALACÍN Research Director CSIC Referee Dr. Valérie PRALONG Research Director CNRS Examiner Dr. Juan RODRÍGUEZ-CARVAJAL Research Scientist ILL Examiner Pr. Christian MASQUELIER Professor Examiner Dr. Gwenaëlle ROUSSE Assistant Professor ‒ HDR Examiner Dr. Jean-Noël CHOTARD Assistant Professor Director Pr. Jean-Marie TARASCON Professor Director Thèse de Doctorat Spécialité: Sciences des Matériaux présentée à l’ Université de Picardie Jules Verne par Marine REYNAUD pour obtenir le grade de Docteur l’Université de Picardie Jules Verne Elaboration de nouveaux matériaux à base de sulfates pour l’électrode positive des batteries à ions Li et Na soutenue le 9 décembre 2013, après avis des rapporteurs, devant le jury d’examen : Dr. Robert DOMINKO Directeur de Recherche Rapporteur Dr. M. Rosa PALACÍN Directeur de Recherche CSIC Rapporteur Dr. Valérie PRALONG Directeur de Recherche CNRS Examinateur Dr. Juan RODRÍGUEZ-CARVAJAL Scientifique ILL Examinateur Pr. Christian MASQUELIER Professeur Examinateur Dr. Gwenaëlle ROUSSE Maître de Conférences ‒ HDR Examinateur Dr. Jean-Noël CHOTARD Maître de Conférences Directeur Pr. Jean-Marie TARASCON Professeur Directeur A mes parents, mes frère et soeur, et mes grands-parents, A Mikel. Abstract The next generations of Li- and Na-ion batteries will rely on the development of new sustainable, low-cost and safe positive electrode materials. To this end, we explored the world of minerals with an emphasis on spotting structures having the prerequisites for insertion and deinsertion of alkaline ions. From this survey, we embarked on the investigation of bimetallic sulfates derived from the bloedite mineral and having the general formula AxM(SO4)2·nH2O (A = Li, Na, M = 3d transition metal and n = 0, 4). These systems present rich crystal chemistry, undergoing phase transitions upon heating and removal of water. The new structures were determined by combining X-ray, neutron and electron diffraction techniques. We have also shown that lithium-based compounds LixM(SO4)2 present interesting antiferromagnetic properties resulting from their peculiar structures, which solely enable super-super-exchange interactions. Finally, and more importantly, we identified among the isolated compounds three iron-based sulfates, namely Na2Fe(SO4)2·4H2O, Na2Fe(SO4)2 and Li2Fe(SO4)2, which present attractive electrochemical properties against both lithium and sodium. With a + 0 potential of 3.83 V vs. Li /Li , the new marinite phase Li2Fe(SO4)2 displays the highest potential ever observed for the FeIII+/FeII+ redox couple in a fluorine-free iron-based inorganic compound, only rivaled by the triplite form of LiFeSO4F. Résumé Les prochaines générations de batteries à ions lithium et sodium seront basées sur le développement de nouveaux matériaux d’électrode positive durables, peu chers et sûrs. Dans ce but, nous avons exploré le monde des minéraux à la recherche de structures présentant les pré-requis pour l’insertion et la désinsertion d’ions alcalins. Nous avons alors entrepris l’étude de sulfates bimétalliques dérivés du minéral bloedite, ayant pour formule générale AxM(SO4)2·nH2O (A = Li, Na, M = métal de transition 3d, et n = 0, 4). Ces systèmes présentent une cristallochimie riche, montrant des transitions structurales en fonction de la température ainsi qu’avec le départ des molécules d’eau. Les nouvelles structures ont été déterminées en combinant les techniques de diffraction des rayons X, neutrons et électrons. Nous avons également montré que les composés à base de lithium LixM(SO4)2 présentent des propriétés antiferromagnétiques intéressantes, du fait notamment de leurs structures particulières qui permettent seulement des interactions de super-super-échange. Enfin et surtout, nous avons, parmi les composés isolés, identifié trois sulfates à base de fer, à savoir Na2Fe(SO4)2·4H2O, Na2Fe(SO4)2 et Li2Fe(SO4)2, qui présentent des propriétés électrochimiques intéressantes face au lithium et au sodium. Avec un potentiel de 3,83 V vs. Li+/Li0, la nouvelle phase III+ II+ marinite Li2Fe(SO4)2 affiche le plus haut potentiel jamais observé pour le couple redox Fe /Fe dans un composé inorganique à base de fer et dépourvu de fluor, et est en fait seulement dépassé par celui de la forme triplite de LiFeSO4F. This thesis work has been carried out with the financial support of the French “Ministère de l’Enseignement Supérieur et de la Recherche”. It was prepared at the laboratory: Laboratoire de Réactivité et Chimie des Solides (LRCS) Université de Picardie Jules Verne (UPJV) Unité Mixte de Recherche CNRS (UMR 7314) 33, rue Saint Leu 80039 AMIENS cedex FRANCE under the supervision of: Pr. Jean-Marie Tarascon Dr. Jean-Noël Chotard and in close collaboration with: Dr. Gwenaëlle Rousse Ce travail de thèse a été réalisé avec le concours financier du Ministère de l’Enseignement Supérieur et de la Recherche. Il a été préparé au laboratoire : Laboratoire de Réactivité et Chimie des Solides (LRCS) Université de Picardie Jules Verne (UPJV) Unité Mixte de Recherche CNRS (UMR 7314) 33, rue Saint Leu 80039 AMIENS cedex FRANCE sous la direction de : Pr. Jean-Marie Tarascon Dr. Jean-Noël Chotard et en étroite collaboration avec: Dr. Gwenaëlle Rousse Acknowledgements First and foremost, I would like to express my sincere gratitude to my supervisors Jean-Marie Tarascon and Jean-Noël Chotard, as well as to Gwenaëlle Rouse for their support and their guidance, and above all for having instilled in me their love of research. I would also like to thank the other members of my PhD committee Robert Dominko, Rosa Palacín, Valérie Pralong, Juan Rodríguez-Carvajal and Christian Masquelier, for their interest in my work and their insightful comments. Besides, I am very grateful to all the people who have actively taken part in this research work : Moulay Sougrati for the Mössbauer spectroscopy, Robert Messinger for the solid-state NMR, Artem Abakumov and Gustaaf Van Tendeloo for the TEM studies, Matthieu Courty for the TGA-DSC measurements, Alexandre Ponrouch for the coating of some electrode materials, Sylvain Boulineau for the SPS syntheses, Thomas Hansen, Erik Elkaïm and Matthew Suchamel for their assistance in NPD and Synchrotron XRD experiments. Many thanks also to all past and present members of the LRCS for their help, advice and support during the last four years. Last but not least, I would like to thank my friends, my family and Mikel for their constant support and encouragement. Merci à tous. Table of contents General introduction .................................................................................... 1 Chapter I. State of the art .................................................................... 5 I.1 Brief overview of the main technologies of batteries ...................................................... 5 I.1.1 Lead-acid batteries ........................................................................................................ 6 I.1.2 Nickel-based technologies ............................................................................................. 6 I.1.3 High-temperature batteries .......................................................................................... 7 I.1.4 The first room-temperature lithium batteries .............................................................. 8 I.1.5 Lithium-ion batteries ..................................................................................................... 9 I.1.6 Lithium polymer batteries ............................................................................................. 9 I.1.7 Sodium-ion batteries ................................................................................................... 10 I.2 Positive electrode materials for Li- and Na-ion batteries ............................................... 12 I.2.1 The first electrode material for lithium batteries: titanium sulfide TiS2 ..................... 14 I.2.2 Lithium transition-metal oxides................................................................................... 15 I.2.2.1 Layered oxides ..................................................................................................... 15 I.2.2.2 Spinel manganese oxide .....................................................................................
Recommended publications
  • March 12Th CONTENT
    Issue 05, February 27th – March 12th CONTENT Introduction During the first two weeks of March we saw important alliances 1between car manufacturers for the development and supply of Batteries electric vehicles. Daimler AG will cooperate with BYD in China and Vehicles and Mitsubishi Motors will work with PSA Peugeot – Citroen in Europe. These announcements represent an important step BYD and Daimler will develop an for electrifying transportation; however going forward requires Electric Vehicle for the Chinese market many issues that still need to be solved. As a society we have Celgard announced expansion of assumed that it is “possible” to replace (in some way) oil for production capacity in Korea electricity, but the question is if we have figured out where and Misubishi Motors and PSA Peugeot how we could obtain this electricity. Once this issue is solved (at Citroen reached final agreement a “reasonable” price and in an environmental friendly way), Sanyo will supply a lithium ion battery the next step is the efficient distribution of this electricity. We system for traffic signals in Japan have seen some companies that are developing interesting business models, but we are far from a mass implementation. LG Chemical will build Volt battery Summarizing, the question that arises is: are we (as a society) plant in Michigan prepared for electrifying transportation? Regarding lithium, a key raw material for batteries used in electric vehicles, it is important to highlight that most of the projects that have been announced in the last years are in an early stage of development. Anyway, the trend is clear: in less than three years around 20 new Companies have announced more than 40 new lithium projects.
    [Show full text]
  • Tourmaline Reference Materials for the in Situ Analysis of Oxygen and Lithium Isotope Ratio Compositions
    Vol. 45 — N° 1 03 P.97 – 119 21 Tourmaline Reference Materials for the In Situ Analysis of Oxygen and Lithium Isotope Ratio Compositions Michael Wiedenbeck (1)*, Robert B. Trumbull (1), Martin Rosner (2),AdrianBoyce (3), John H. Fournelle (4),IanA.Franchi (5),RalfHalama (6),ChrisHarris (7),JackH.Lacey (8), Horst Marschall (9) , Anette Meixner (10),AndreasPack (11), Philip A.E. Pogge von Strandmann (9), Michael J. Spicuzza (4),JohnW.Valley (4) and Franziska D.H. Wilke (1) (1) GFZ German Research Centre for Geosciences, Potsdam 14473, Germany (2) Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA, 02543, USA (3) Scottish Universities Environmental Research Centre, East Kilbride G75 0QF, UK (4) Department of Geoscience, University of Wisconsin, Madison, WI, 53706, USA (5) School of Physical Sciences, Open University, Milton Keynes MK7 6AA, UK (6) Department of Geology, University of Maryland, College Park, MD, 20742, USA (7) Department of Geological Sciences, University of Cape Town, Rondebosch 7701, South Africa (8) National Environmental Isotope Facility, British Geological Survey, Keyworth NG12 5GG, UK (9) Bristol Isotope Group, School of Earth Sciences, University of Bristol, Bristol BS8 1RJ, UK (10) Faculty of Geosciences & MARUM – Center for Marine Environmental Sciences, University of Bremen, Bremen 28359, Germany (11) Geowissenschaftliches Zentrum, Universitat¨ Gottingen,¨ Gottingen¨ 37077, Germany (12) Present address: IsoAnalysis UG, Berlin 12489, Germany (13) Present address: School of Geography, Geology and Environment, Keele University, Keele ST5 5BG, UK (14) Present address: Institut fur¨ Geowissenschaften, Goethe-Universitat,¨ Frankfurt am Main 60438, Germany (15) Present address: Institute of Earth and Planetary Sciences, University College London and Birkbeck, University of London, London WC1E 6BS, UK * Corresponding author.
    [Show full text]
  • Innsbrook 5/23/2021 TABLE of CONTENTS
    Innsbrook 5/23/2021 TABLE OF CONTENTS SDS0618 Adacel 1 Sanofi Pasteur 1/22/2019 SDS0507 Albuterol Sulfate Inhalation Solution 2 Nephron Pharmaceuticals Corporation 2/1/2017 SDS1134 Ammonia Inhalants 3 Dynarex Corporation 1/14/2015 SDS1253 Betamethasone Sodium Phosphate and Betamethasone Acetate 4 Injectable Suspension, USP PharmaForce, Inc 8/14/2015 SDS1255 BYDUREON MIXTURE FOR INJECTION 5 ASTRAZENECA PTY LTD 8/8/2016 SDS1257 Bystolic Exemption Letter 6 Allergan 3/1/2018 SDS0430 Ceftriaxone for Injection 7 Hospira, A Pfizer Company 10/28/2016 SDS0338 CETYLCIDE II 8 Cetylite Industries, Inc 11/3/2016 SDS0513 Cyanocobalamin Injection, USP 9 West-Ward Pharmaceuticals 3/15/2016 SDS0417 ENGERIX-B ADULT 10 GlaxoSmithKline US 5/29/2018 SDS0431 Ethyl Chloride 11 Gebauer Company 4/23/2013 SDS1254 Fluorescein GloStrips, Ophthalmic 12 Nomax, Inc. 5/14/2015 SDS0414 Gardasil® 13 Merck & Co., Inc 11/15/2016 SDS0602 Grafco Silver Nitrate Applicators 14 GF Health Products, Inc. 9/19/2014 SDS0494 KENALOG®-10 and 40 mg/ml (triamcinolone acetonide) 15 Injectable Suspension Pfizer Pharmaceuticals Group 2/24/2015 SDS0429 Ketorolac Tromethamine Injection, USP 16 Hospira, A Pfizer Company 8/3/2016 SDS1249 LANTUS 17 Sanofi -aventis 11/16/2016 SDS0386 McKesson Hydrogen Peroxide, 3% 18 McKesson Medical-Surgical Inc. 10/29/2015 SDS1128 McKesson Iodoform Packing Strip, 5% 19 McKesson Medical-Surgical Inc. 9/1/2015 SDS0492 McKesson Isopropyl Rubbing Alcohol 70% 20 McKesson Medical-Surgical Inc. 8/7/2015 SDS1124 McKesson Multi-Enzymatic Cleanser Fresh Mint Fragrance
    [Show full text]
  • Zinnwald Lithium Project
    Zinnwald Lithium Project Report on the Mineral Resource Prepared for Deutsche Lithium GmbH Am St. Niclas Schacht 13 09599 Freiberg Germany Effective date: 2018-09-30 Issue date: 2018-09-30 Zinnwald Lithium Project Report on the Mineral Resource Date and signature page According to NI 43-101 requirements the „Qualified Persons“ for this report are EurGeol. Dr. Wolf-Dietrich Bock and EurGeol. Kersten Kühn. The effective date of this report is 30 September 2018. ……………………………….. Signed on 30 September 2018 EurGeol. Dr. Wolf-Dietrich Bock Consulting Geologist ……………………………….. Signed on 30 September 2018 EurGeol. Kersten Kühn Mining Geologist Date: Page: 2018-09-30 2/219 Zinnwald Lithium Project Report on the Mineral Resource TABLE OF CONTENTS Page Date and signature page .............................................................................................................. 2 1 Summary .......................................................................................................................... 14 1.1 Property Description and Ownership ........................................................................ 14 1.2 Geology and mineralization ...................................................................................... 14 1.3 Exploration status .................................................................................................... 15 1.4 Resource estimates ................................................................................................. 16 1.5 Conclusions and Recommendations .......................................................................
    [Show full text]
  • Desalination 455 (2019) 115–134
    Desalination 455 (2019) 115–134 Contents lists available at ScienceDirect Desalination journal homepage: www.elsevier.com/locate/desal Timeline on the application of intercalation materials in Capacitive T Deionization ⁎ K. Singha,b, S. Poradab,c, H.D. de Gierb, P.M. Biesheuvelb, L.C.P.M. de Smeta,b, a Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands b Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands c Soft Matter, Fluidics and Interfaces Group, Faculty of Science and Technology, University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands ABSTRACT Capacitive deionization is a water desalination technology in which ions are stored in electrodes in an electrochemical cell construction, connected to an external circuit, to remove ions present in water from various sources. Conventionally, carbon has been the choice of material for the electrodes due to its low cost, low contact resistance and high specific surface area, electronic conductivity, and ion mobility within pores. The ions in the water are stored at the pore wallsofthese electrodes in an electrical double layer. However, alternative electrode materials, with a different mechanism for ion and charge storage, referred to as ion inter- calation, have been fabricated and studied as well. The salt adsorption performance exhibited by these materials is in most cases higher than that of carbon electrodes. This work traces the evolution of the study of redox activity in these intercalation materials and provides a chronological description of major devel- opments in the field of Capacitive Deionization (CDI) with intercalation electrodes.
    [Show full text]
  • Morphology and Electronic Structure of Sn-Intercalated Tis2(0001) Layers
    Morphology and Electronic Structure of Sn-Intercalated TiS2(0001) Layers *Junji Yuhara1, Naoki Isobe1, Kazuki Nishino1, Yuya Fujii1, #Lap Hong Chan1, Masaaki Araidai1,2,3, Masashi Nakatake4 1Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan 2Institute for Advanced Research, Nagoya University, Nagoya 464-8601, Japan 3Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8601, Japan 4Aichi Synchrotron Radiation Center, Aichi Science & Technology Foundation, Seto, 489-0965, Japan ABSTRACT: Surface morphology and electronic structure of layered semiconductor 1-trigonal phase titanium disulfide, i.e. 1T-TiS2(0001), with Sn intercalation, have been studied by scanning tunneling microscopy (STM), low-energy electron diffraction, synchrotron radiation photoemission spectroscopy, and first-principles calculations based on density functional theory (DFT). From the STM images, we show that Sn atoms are intercalated into TiS2 layers. The electronic structure exhibits electron Fermi pockets around M points and characteristic band dispersions around the M and K points after Sn intercalation. The DFT calculations reveal the geometrical site of intercalated Sn atom, which is surrounded by six sulfur atoms with D3d symmetry. The calculated electronic band structures are in good agreement with the experimental band structure. *Corresponding author: Junji Yuhara ([email protected]) #The present affiliation of Lap Hong Chan is National Chung Hsing University, Taichung 40227, Taiwan. 1 Introduction
    [Show full text]
  • UCLA Electronic Theses and Dissertations
    UCLA UCLA Electronic Theses and Dissertations Title Electrochemical Performance of Titanium Disulfide and Molybdenum Disulfide Nanoplatelets Permalink https://escholarship.org/uc/item/73h6h1z6 Author Siordia, Andrew F. Publication Date 2016 Peer reviewed|Thesis/dissertation eScholarship.org Powered by the California Digital Library University of California UNIVERSITY OF CALIFORNIA Los Angeles Electrochemical Performance of Titanium Disulfide and Molybdenum Disulfide Nanoplatelets A thesis submitted in partial satisfaction of the requirements of the degree Master of Science in Materials Science and Engineering by Andrew Francisco Siordia 2016 ABSTRACT OF THESIS Electrochemical Performance of Titanium Disulfide and Molybdenum Disulfide Nanoplatelets by Andrew Francisco Siordia Master of Science in Materials Science and Engineering University of California, Los Angeles, 2016 Professor Bruce S. Dunn, Chair Single layer crystalline materials, often termed two-dimension (2D) materials, have quickly become a popular topic of research interest due to their extraordinary properties. The intrinsic electrical, mechanical, and optical properties of graphene were found to be remarkably distinct from graphite, its bulk counterpart. In conjunction with newfound processing techniques, there is renewed interest in elucidating the structure-property relationships of other 2D materials ii like the transition metal dichalcogenides (TMDCs). The energy storage capability of 2D nanoplatelets of TiS2 and MoS2 are studied here providing a contrast with investigations of corresponding bulk materials in the early 1970s. TiS2 was synthesized into nanoplatelets using a hot injection route which provided a capacity of ~143mAhg-1 from thin film electrodes as determined by cyclic voltammetry measurements. Phase identification using X-ray diffraction, scanning electron microscopy, and transmission electron microscopy to complement the electrochemical performance and impurity identification is presented.
    [Show full text]
  • United States Patent to 4,009,052 Whittingham 45 Feb
    United States Patent to 4,009,052 Whittingham 45 Feb. 22, 1977 54 CHALCOGENIDE BATTERY the anode-active material a metal selected from the group consisting of Group la metals, Group Ib metals, (75. Inventor: M. Stanley Whittingham, Fanwood, Group IIa metals, Group IIb metals, Group IIIa metals N.J. and Group IVa metals (lithium is preferred), the cath 73) Assignee: Exxon Research and Engineering ode contains as the cathode-active material a chalco Company, Linden, N.J. genide of the formula MZ wherein M is an element selected from the group consisting of titanium, zirco 22 Filed: Apr. 5, 1976 nium, hafnium, niobium, tantalum and vanadium (tita nium is preferred); Z is an element selected from the (21 Appl. No.: 673,696 group consisting of sulfur, selenium and tellurium, and x is a numerical value between about 1.8 and about 2. 1, Related U.S. Application Data and the electrolyte is one which does not chemically 63 Continuation-in-part of Ser. No. 552,599, Feb. 24, react with the anode or the cathode and which will 1975, abandoned, which is a continuation-in-part of permit the migration of ions from said anode-active Ser. No. 396,051, Sept. 10, 1973, abandoned. material to intercalate the cathode-active material. A highly useful battery may be prepared utilizing lithium (52) U.S. Cl. ............................... 429/191; 429/193; as the anode-active material, titanium disulfide as the 429/194; 429/199; 429/218; 429/229 cathode-active material and lithium perchlorate dis (51) Int. Cl’........................................ H01M 35/02 solved in tetrahydrofuran (70%) plus dimethoxyethane.
    [Show full text]
  • Thesis and Characterisation of Novel Precursors for the CVD of Tin Sulfides and Related Materials
    University of Bath PHD The synthesis and characterisation of novel precursors for the CVD of tin sulfides and related materials Kana, Aliki Theodora Award date: 2002 Awarding institution: University of Bath Link to publication Alternative formats If you require this document in an alternative format, please contact: [email protected] General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Download date: 08. Oct. 2021 THE SYNTHESIS AND CHARACTERISATION OF NOVEL PRECURSORS FOR THE CVD OF TIN SULFIDES AND RELATED MATERIALS Submitted by Aliki Theodora Kana for the degree of PhD of the University of Bath 2002 COPYRIGHT Attention is drawn to the fact that copyright of this thesis rests with its author. This copy of the thesis has been supplied on condition that anyone who consults it is understood to recognise that its copyright rests with its author and that no quotation from the thesis and no information derived from it may be published without the prior written consent of the author.
    [Show full text]
  • Goldman Sachs Chemicals Intensity Days
    Albemarle Corporation Investor Presentation Goldman Sachs Chemicals Intensity Days Conference March 24th, 2020 Forward-Looking Statements Some of the information presented in this presentation including, without limitation, information related to outlook and guidance, conversion capacity, production volumes, joint ventures, market trends, pricing, expected growth, earnings and demand for our products, tax rates, dividends, cash flow generation, capital projects, electric vehicle demand, economic trends and all other information relating to matters that are not historical facts may constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Actual results could differ materially from the views expressed. Factors that could cause actual results to differ materially from the outlook expressed or implied in any forward-looking statement include, without limitation: changes in economic and business conditions; changes in financial and operating performance of our major customers and industries and markets served by us; the timing of orders received from customers; the gain or loss of significant customers; competition from other manufacturers; changes in the demand for our products or the end-user markets in which our products are sold; limitations or prohibitions on the manufacture and sale of our products; availability of raw materials; increases in the cost of raw materials and energy, and our ability to pass through such increases to our customers; changes in our markets in general;
    [Show full text]
  • Lithium-Sulfur Batteries: Advances and Trends
    electrochem Review Lithium-Sulfur Batteries: Advances and Trends Claudia V. Lopez, Charini P. Maladeniya and Rhett C. Smith * Department of Chemistry, Clemson University, Clemson, SC 29634, USA; [email protected] (C.V.L.); [email protected] (C.P.M.) * Correspondence: [email protected] Received: 21 April 2020; Accepted: 5 June 2020; Published: 1 July 2020 Abstract: A review with 132 references. Societal and regulatory pressures are pushing industry towards more sustainable energy sources, such as solar and wind power, while the growing popularity of portable cordless electronic devices continues. These trends necessitate the ability to store large amounts of power efficiently in rechargeable batteries that should also be affordable and long-lasting. Lithium-sulfur (Li-S) batteries have recently gained renewed interest for their potential low cost and 1 high energy density, potentially over 2600 Wh kg− . The current review will detail the most recent advances in early 2020. The focus will be on reports published since the last review on Li-S batteries. This review is meant to be helpful for beginners as well as useful for those doing research in the field, and will delineate some of the cutting-edge adaptations of many avenues that are being pursued to improve the performance and safety of Li-S batteries. Keywords: lithium-sulfur batteries; polysulfide; cathode materials; high sulfur materials Review 1. IntroductionLithium-Sulfur Batteries: Advances and Trends Claudia V. Lopez, Charini P. Maladeniya and Rhett C. Smith * 1.1. General OperationDepartmentof of Chemistry, Lithium-Sulfur Clemson University, (Li-S)Clemson, SC Batteries 29634, USA; [email protected] (C.V.L.); [email protected] (C.P.M.) Lithium-sulfur* Correspondence: (Li-S) [email protected] batteries have emerged as preeminent future battery technologies in large Received: 21 April 2020; Accepted: 5 June 2020; Published: date part due to their impressive theoretical specific energy density of 2600 W h kg 1.
    [Show full text]
  • Sustainability Report 01
    Ganfeng Lithium Co.,Ltd. 2020 Sustainability Report 01 About This Report This report is the sustainability report (or social responsibility report) for the fifth consecutive year issued by Jiangxi Ganfeng Lithium Co., Ltd., which aims to communicate with stakeholders on corporate social responsibility, operational initiatives and performance, and to respond to stakeholders' needs. Reporting Period The reporting period is from January 1 to December 31, 2020. Some of the statements and data are beyond the reporting period in an appropriate manner. Reporting Scope The report covers the headquarters, branches and subsidiaries of Ganfeng Lithium Co., Ltd. Unless otherwise specified, the environmental data disclosed in this report was generated by Ganfeng's operations in mainland China. Data Source The data and information in the report was extracted from Ganfeng Lithium Co., Ltd.'s relevant documents, reports and system. Reporting Reference The report was prepared in accordance with Appendix 27 Environmental, Social and Governance Reporting Guide of the Rules Governing the Listing of Securities on the Stock Exchange of Hong Kong Limited (HKEx ESG Reporting Guide). Response to the Four Principles of the HKEx ESG Reporting Guide Materiality: To prepare this report, the Company conducted a materiality analysis to determine the completeness and accuracy of its contents. The process and results of materiality analysis are presented in Section “Sustainability Development” of this report. Quantitative: The report disclosed quantitative data on both environmental and social aspects to demonstrate the performance of indicators. Balance: The Company strives to achieve objective and unbiased information disclosure. The contents of the report came from the Company's internal management documents, statistics and public disclosure, as well as public media reports, with no improper revisions.
    [Show full text]