( 12 ) United States Patent
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Fuel Cell Energy Generators PLATINUM CATALYSTS USED in ALTERNATIVE ENERGY SOURCE
Fuel Cell Energy Generators PLATINUM CATALYSTS USED IN ALTERNATIVE ENERGY SOURCE By D. S. Cameron Group Research Centre, Johnson Matthey and Co Limited The steam, in turn, is produced by burning Improvements in the preparation and fossil fuels (coal or hydrocarbons), or by utilisation of platinum metal catalysts nuclear fission. Unfortunately, the processes have now made megawatt scale fuel cell of converting fuel into heat, heat into steam, systems economically viable. The high and steam into electricity involve efficiency thermal efficiency and low pollution losses at every stage. The Carnot cycle characteristics of this novel power source shows that the thermal efficiency of any heat are likely to result in it forming an engine is limited to E where: increasing proportion of the generating capacity utilised for both peaking and intermediate applications. This paper T, and TI being the temperatures, in degrees briejly reviews the development of fuel kelvin, at which heat is supplied to, and cells; it also describes how they work, rejected by, the system. In practice, upper including the function of the catalyst, temperatures are limited to about 500'C and indicates the more important of the (773 K), lower temperatures are at least 30°C many factors which have to be considered (303 K), and efficiencies are limited to a when selecting a commercial system. maximum of 60 per cent. Indeed most modern large power stations are able to achieve only 38 to 40 per cent efficiency. Fuel cells have already achieved acceptance Fuel cells convert fuel directly into elec- as reliable, lightweight power sources for trical energy by an electrochemical route space applications, for example in the Apollo which is not limited by the Carnot cycle. -
Power Supply Using Earth Battery and Solar Pael
ITSI Transactions on Electrical and Electronics Engineering (ITSI-TEEE) _______________________________________________________________________________________________ Power Supply Using Earth Battery 1Harish D, 2T S Dhanalakshmi, 3Gireesh H R 1,2,3RRCE, Bangalore electronic devices. They can also be considered to Abstract: In view of robust and cost effective use of this natural power technology by unskilled village consumers replace high voltage low current charging power most suitable combinations of the commonly available supplies or ionization power supplies. Like earth metals were selected for further detailed characteristic batteries the sea batteries also may be considered for studies. Combinations of Magnesium anode and Coke similar applications. However, air batteries can be used cathode: Zinc anode and Graphite, cathode: Aluminum for bulk power production and grid system operation [3]. anode and Carbon cathode; Zinc anode and Copper In view of global energy crisis to be caused by natural cathodes gave 2.05, 1.40, 1.10 and 0.9 volts per cell. Typical end of oil and gas within next 50 to60 years time [9-11], rated power of a single Zn-Cu cell was measured to be few it has become very important to look for alternative tens of microamperes. Small power electronic devices such energy sources to hold back the human race from as calculators, electronic watches, baby toys and cell phones and white light LEDs were operated on site. The engagement to a great energy war [12-13]. Although, voltage level was found to increase linearly by connecting uranium [14] and coal [9] would continue to exist for multiple earth battery cells in series like commercial lead few centuries but they cannot replace oil and gas despite acid battery. -
(1) Patent Number: 4,572,582 Ryeczek 45 Date of Patent: Feb
United States Patent (19) (1) Patent Number: 4,572,582 Ryeczek 45 Date of Patent: Feb. 25, 1986 54) METHOD OF MINING METALS LOCATED 3,288,648 11/1966 Jones ............................... 166/248 X N THE EARTH 3,547,192 12/1970 Claridge et al. .................... 166/248 3,819,231 6/1974 Fehliner ................................... 299/4 76 Inventor: John J. Ryeczek, R.D. #1, Box 190C, Primary Examiner-George A. Suchfield Point Marion, Pa. 15474 Attorney, Agent, or Firm-Webb, Burden, Robinson & 21 Appl. No.: 599,994 Webb 22) Filed: Apr. 13, 1984 57 ABSTRACT An earth battery which includes a first electrode which Related U.S. Application Data is a veined material located in the earth, a second elec 62) Division of Ser. No. 384,781, Jun. 4, 1982, Pat. No. trode electrically connected to the surface of the earth 4,457,988. and disposed in a hole which extends from the surface 51 Int. Cl." ....................... E21C 41/06; E21C 41/14 of the earth into the first electrode, an electrolyte dis 52) U.S. C. ........................................ 299/5; 166/248; posed in the hole and in contact with the first and sec 299/7; 299/8 ond electrodes, and means for electrically connecting 58) Field of Search ............................... 299/7, 8, 5, 4; the first electrode to the surface of the earth. A seam of 166/248, 65 R; 429/47, 13, 10 coal is preferred as the first electrode. A method of mining metals located in the earth using the earth bat 56 References Cited tery and a method of drilling holes in the earth are also U.S. -
ECS Classics: Weston, the Weston Cell, and the Volt
ClassicsECS Weston, the Weston Cell, and the Volt by Petr Vanýsek he measurement of electromotive force, potential, or voltage Sharing much of the same enthusiasm as Acheson (ECS Classics, difference has been central to measurements ever since the Interface, 26(1) 36-39), Edison, or Swann (ECS Classics, Interface, Tconcept of potential in electricity was first understood. The 23(4) 38-40), Weston was also interested in lighting equipment. His definition of the volt changed a few times throughout the course of company, among others, won the contract to illuminate the new history and at one point it was even based on electrochemistry, on Brooklyn Bridge. His carbon based light bulb filament made from the so-called Clark cell. The international volt was defined in 1893 Tamidine (reduced nitrocellulose) was used until tungsten was as 1/1.434 electromotive force of the Clark cell. This definition lasted introduced. until 1908. The Clark cells used zinc or zinc amalgam for the anode and Weston was, since his first introduction to electrochemistry in mercury in a saturated aqueous solution of zinc sulfate for a cathode, electroplating, well aware of the need to reliably measure electrical with a paste of mercurous sulfate as a depolarizer. The cell design parameters. Because of this interest, in 1887 he established a had a drawback in a rather significant temperature coefficient and also laboratory making devices for measuring electrical parameters. In the suffered corrosion problems, which were caused by platinum wires process he developed two important alloys, constantan and manganin, that were alloying with the zinc amalgam in the glass envelope. -
The Silver Voltameter—Part Iv
.. 1 THE SILVER VOLTAMETER—PART IV THIRD SERIES OF QUANTITATIVE EXPERIMENTS AND SPECIAL INVESTIGATIONS By E. B. Rosa, G. W. Vinal, and A. S. McDanlel CONTENTS Page I. Introduction 476 II. DETERMINATION OP VOLTAGE OF THE WESTON NoRMAIv Cei.I< 477 A. Basis of reference for current and voltage measurements 478 1. Weston normal cells 478 2. Resistances 478 B. Meaning of the term " International volts" 478 C. Voltameters and materials 479 D. Tables of results 481 1. Corrections for acid present 482 2. Resultsof the porous pot and Smith's new-form voltameters. 485 3. Results of other forms of voltameters 492 4. Miscellaneous results 493 III. Speciai, Investigations 497 A. On the agreement of various forms 497 1 Comparative results 497 2 Possible explanations of observed differences 498 B. On the accuracy of the measurements. 501 C. Reliability of iodeosine as an indicator 502 D. Effect of acid 503 1 Effect on impure solutions 503 2 Nature of the action of acid 505 E. Influence of septa other than filter paper 508 1. Silk 508 2 Poroiis pots 510 3. Electrostenolysis 514 F. Purity of the silver deposit 516 1. Constancy of any error due to inclusions 516 2. Previous determinations of inclusions 517 3. Experiments on inclusions 519 (a) Detection of silver nitrate 519 (b) Estimation of included water and volatile material 52 (c) Estimation of organic material 522 (d) Titration of silver deposits 523 (e) Conclusion 523 475 476 Bulletin of the Bureau of Standards {Voi.io III. SpeciaIv Investigations—Continued. Page, G. Reversibility of the silver voltameter 523 H. -
Reliable Energy Sources As a Foundation for Reliable Intermittent Systems
Reliable Energy Sources as a Foundation for Reliable Intermittent Systems Dhananjay Jagtap Pat Pannuto [email protected] [email protected] University of California, San Diego University of California, San Diego ABSTRACT be accessible to change batteries [11]. This is the case when de- This paper defines architectural and operational principles for sim- ploying sensor networks for structural or condition monitoring ple and reliable energy harvesting devices that can be used in service in industrial environments [38] or for environmental monitoring of high-level applications. For many maintenance and monitoring applications where there is no built infrastructure. This is part of tasks, we propose that it is more valuable to have reliable, trusted what makes energy harvesting designs so exciting: they present affirmations that nothing has changed than it is to know theexact the potential for set-it-and-forget it systems that can go anywhere moment that something has failed. This presents an opportunity for and last forever [16]. a new class of highly reliable, but not necessarily timely, intermit- What often makes energy harvesting designs challenging, how- tent devices. These are devices that are capable of sending messages ever, is that energy sources are unreliable, unpredictable, or un- at reasonable, fixed intervals (e.g. once an hour or once a day). They controllable. Early designs simply ran whenever they could for as cannot activate more often, but they also promise not to activate long as they could [10, 31, 35]. However, this wholly uncontrolled less often. To establish this reliability, we look to opportunities for intermittency made it difficult for device and system designers energy scavenging that are often ignored as their instantaneous to build applications. -
Technical Report 91-39
TECHNICAL REPORT 91-39 The reductibility of sulphuric acid and sulphate in aqueous solution (translated from German) Rolf Grauer Paul Scherrer Institute, Switzerland July 1990 SVENSK KARNBRANSLEHANTERING AB SWEDISH NUCLEAR FUEL AND WASTE MANAGEMENT CO BOX 5864 S-102 48 STOCKHOLM TEL 08-665 28 00 TELEX 13108 SKB S TELEFAX 08-661 5719 THE REDUCIBILITY OF SULPHURIC ACID AND SULPHATE IN AQUEOUS SOLUTION (TRANSLATED FROM GERMAN) Rolf Grauer Paul Scherrer Institute, Switzerland July 1990 This report concerns a study which was conducted for SKB. The conclusions and viewpoints presented in the report are those of the author(s) and do not necessarily coincide with those of the client. Information on SKB technical reports from 1977-1978 (TR 121), 1979 (TR 79-28), 1980 (TR 80-26), 1981 (TR 81-17), 1982 (TR 82-28), 1983 (TR 83-77), 1984 (TR 85-01), 1985 (TR 85-20), 1986 (TR 86-31), 1987 (TR 87-33), 1988 (TR 88-32), 1989 (TR 89-40) and 1990 (TR 90-46) is available through SKB. Translation from German THE REDUCIBILITY OF SULPHURIC ACID AND SULPHATE IN AQUEOUS SOLUTION (fiber die Reduzierbarkeit von Schwefelsaure und Sulfat ir. wäBriger Lösung) by Rolf Grauer Paul Scherrer Institute July 1990 SUMMARY 1 1. INTRODUCTION 3 2. STATEMENT OF THE PROBLEM AND THE STRATEGY FOR SOLVING IT 4 3. THERMODYNAMICS OF CORROSION BY SULPHATE 5 4. GEOCHEMICAL INFORMATION ABOUT THE REDOX STABILITY OF SULPHATE 7 5. EXPERIMENTS ON THE REDUCTIBILITY OF SULPHURIC ACID AND SULPHATE 8 5.1 Hydrothermal experiments 8 5.2 The oxidising action of sulphuric acid on metals 9 5.3 Experiments on the cathodic reduction of sulphuric acid and sulphate 9 5.4 Polarographic investigations of the cathodic behaviour of sulphuric acid 10 6. -
Batteries and Primitive Survival E-Book
Batteries and Primitive Survival (An e-Book that is word searchable and printable) (3 Nov 2008) Table of Contents Introduction: Knowledge from many sources including my own research and development have been brought together to show how to intelligently use battery storage technology in a long term primitive survival situation. Lead-Acid batteries for use as primary source storage and smaller rechargeable/non-rechargeables for portability will be viewed in many different ways for practicality during primitive survival. The way to read this book is to read chapter one then jump to areas of interest, realizing that the proper storage of the correct chosen batteries and the making of efficient chargers are ideally needed before the emergency times start. This book is designed to be a reference work and is dedicated to those who wish to survive the coming pole shift. (by Mikel) Chapter 1: Basic Battery Survival 101 (7 pages) This chapter gives an overview summery of the basics knowledge needed to start one into primitive survival using storage cells and batteries. The remaining chapters detail and answer the questions needed to help survive in a primitive environment for an extended time. Chapter 2: Long Term Battery Storage and Self Discharge Rates (12 pages) This chapter details how to prepare batteries for long term storage. What are the choices of batteries and how to store them for the long term. The manufactures recommendations are detailed. A description of what to do as you take them out of storage for the first time is also detailed. Chapter 3: Efficient Battery Chargers for Survival (20 pages) Most of the currently efficient commercial battery chargers that I have tested have a maximum efficiency of about 20-38% of source energy delivered to the destination battery. -
Introduction to Materials for PEMFC Electrodes Final
University of Birmingham Introduction to Materials for PEMFC Electrodes Mardle, Peter; Du, Shangfeng License: None: All rights reserved Document Version Peer reviewed version Citation for published version (Harvard): Mardle, P & Du, S 2020, Introduction to Materials for PEMFC Electrodes. in A-G Olabi (ed.), Encyclopedia of Smart Materials. Elsevier. Link to publication on Research at Birmingham portal General rights Unless a licence is specified above, all rights (including copyright and moral rights) in this document are retained by the authors and/or the copyright holders. The express permission of the copyright holder must be obtained for any use of this material other than for purposes permitted by law. •Users may freely distribute the URL that is used to identify this publication. •Users may download and/or print one copy of the publication from the University of Birmingham research portal for the purpose of private study or non-commercial research. •User may use extracts from the document in line with the concept of ‘fair dealing’ under the Copyright, Designs and Patents Act 1988 (?) •Users may not further distribute the material nor use it for the purposes of commercial gain. Where a licence is displayed above, please note the terms and conditions of the licence govern your use of this document. When citing, please reference the published version. Take down policy While the University of Birmingham exercises care and attention in making items available there are rare occasions when an item has been uploaded in error or has been deemed to be commercially or otherwise sensitive. If you believe that this is the case for this document, please contact [email protected] providing details and we will remove access to the work immediately and investigate. -
United States Oct. 24, 2013 Anode Cathode
US 20130280611A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2013/0280611 A1 ALKORDI et al. (43) Pub. Date: Oct. 24, 2013 (54) ELECTRODE SEPARATOR Related US. Application Data (71) Applicant: King Abdullah University of Science (60) Provisional application No. 61/625,973, ?led on Apr. and Technology, (US) 18, 2012. Publication Classi?cation (72) Inventors: Mohamed Helmi ALKORDI, ThuWal (SA); Mohamed EDDAOUDI, ThuWal (51) Int. Cl. (SA) H01M 2/16 (2006.01) H01M 2/14 (2006.01) (73) Assignee: King Abdullah University of Science (52) US. Cl. and Technology, ThuWal (SA) CPC .......... .. H01M2/1673 (2013.01); H01M2/145 (2013.01) USPC ........... .. 429/224; 429/246; 29/623.5; 427/58 Appl. No.: 13/861,775 (21) (57) ABSTRACT A nanostructured separator for a battery or electrochemical (22) Filed: Apr. 12, 2013 cell can be a nanostructured separator. Anode Separator, 9.9. MOF/CP/COF , Cathode Patent Application Publication Oct. 24, 2013 Sheet 1 0f 13 US 2013/0280611 A1 Anode Separator, e.g. MOF/CP/COF _ Cathode Fig. 1 Patent Application Publication Oct. 24, 2013 Sheet 2 0f 13 US 2013/0280611 A1 Bridging group Polyvalentoore m Fig.2A Bridging group \ Polyvaient core — Fig.2B Bridging group \ Polyvalent core // Fig. 2C Patent Application Publication Oct. 24, 2013 Sheet 3 0f 13 US 2013/0280611 A1 .. .. Patent Application Publication Oct. 24, 2013 Sheet 4 0f 13 US 2013/0280611 A1 Fig. 4A Fig. 4B Patent Application Publication Oct. 24, 2013 Sheet 5 0f 13 US 2013/0280611 A1 Patent Application Publication Oct. 24, 2013 Sheet 6 0f 13 US 2013/0280611 A1 aa“Aa gmmmwmwgwmmwx wmun» w 28 25 39 35 A3 #5 28 Fig. -
1875 Patent on Earth Batteries
1875 Patent on Earth Batteries There has recently been a question on Earth batteries on the Free energy newsgroup as so many were unaware of the existence of such a device and must admit that I was ignorant of the device myself until I came across this patent and so I reproduce an except from the patent application below. "The object of my invention is to produce a current of electricity from an earth battery or batteries capable of generating a constant current of considerable intensity to be used for lightning rod and other purposes where voltaic batteries using solutions are now applied. It is known that if different elements-for instance sheets of zinc and copper-be buried or placed in the earth ,a current of electricity is generated; but I have discovered that if such elements be partly embedded in sulphur so that the dampness of the earth may act in conjunction with the sulphur on the metals, a more intense will be created. I utilise this in the following way: The current is collected by insulated wires coiled around nickel plated steel magnets ,which are planted north and south in the earth to receive the magnetic current of the earth; a secondary coil or coils of insulated wire surrounds the coil or coils around the magnets and receives by induction, electricity from both the voltaic and magneto-electro batteries. In the drawing, the voltaic battery is composed of several pieces or plates of chemically pure zinc B, and the same number of copper, A they are embedded in a cake of sulphur C and are connected by a large insulated wire D, which being the primary coil between dissimilar elements is extended, without insulation to the base of the sulphur cake C, and also in a spiral coil or coils around steel magnets E, which are pointed magnetised and nickel plated. -
A Multi-Pronged, Noninvasive Probing of Electrodeposition In
A MULTI-PRONGED, NONINVASIVE PROBING OF ELECTRODEPOSITION IN LI-ION BATTERIES A Thesis by MICHAEL ANDREW KALAN Submitted to the Office of Graduate and Professional Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Chair of Committee, Partha P. Mukherjee Committee Members, Sarbajit Banerjee Hong Liang Head of Department, Andreas A. Polycarpou May 2017 Major Subject: Mechanical Engineering Copyright 2017 Michael Andrew Kalan ABSTRACT Lithium ion batteries hold the potential to play a key role in meeting our future and increasing energy storage needs. Lithium ion batteries have the highest energy density of all battery systems currently available. Since their introduction to the modern battery market in the mid 90’s they have evolved and become the choice system for meeting energy needs in portable electronic devices. Lithium ion batteries, however, face many challenges preventing them from being utilized to their fullest potential. They suffer from self-discharge, degradation over repeated charging, not operating well at extreme low or high temperatures, and can suffer from the deposition of metallic lithium during charging. This deposition builds up on the surface of the graphite electrode and can lead to the formation of structures called dendrites. These dendrites can cause problems like internal short-circuits, ultimately resulting in the battery catching on fire. The focus of this work is to study the electrodeposition of lithium on graphite electrodes. Two main tools are used over the course of this study: modeling and experimentation. The first half of this work discusses the approach through computational modeling.