COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
대리인 / 주소
Nixon & Vanderhye P.C.
인용정보
피인용 횟수 :
1인용 특허 :
106
초록▼
The present invention generally relates to electrodes, electrical storage devices comprising the electrodes, and methods for producing the electrodes and electrical storage devices. The electrodes comprise a current collector, an electrically conductive mat, and a first and second electroactive mate
The present invention generally relates to electrodes, electrical storage devices comprising the electrodes, and methods for producing the electrodes and electrical storage devices. The electrodes comprise a current collector, an electrically conductive mat, and a first and second electroactive material, the first electroactive material having a higher energy density than the second electroactive material, and the second electroactive material having a higher rate capability than the first electroactive material. The electrically conductive mat provides a structural and conductive support for at least one of the high-rate and high-energy electroactive materials. The electrodes can be provided in various configurations and be used in high-rate high-energy electrical storage devices to provide improved cycle life.
대표청구항▼
1. An electrode for an electrical storage device comprising: a current collector in the form of a current collector grid or plate;a first electroactive material in a form of a first electroactive material layer;a second electroactive material in a form of a second electroactive material layer; andan
1. An electrode for an electrical storage device comprising: a current collector in the form of a current collector grid or plate;a first electroactive material in a form of a first electroactive material layer;a second electroactive material in a form of a second electroactive material layer; andan electrically conductive mat comprising a porous network of interconnected electrically conductive fibres, forming an electrically conductive mat layer;wherein:the first electroactive material is deposited upon a planar side of the current collector grid or plate, the electrically conductive mat is layered upon the first electroactive material, and the second electroactive material is layered upon the electrically conductive mat;the first electroactive material has a higher energy density than the second electroactive material, and the second electroactive material has a higher rate capability than the first electroactive material; andthe electrically conductive mat provides structural and conductive support for at least one of the first electroactive material and the second electroactive material. 2. The electrode according to claim 1, wherein the electrically conductive mat is a carbon fibre sheet. 3. The electrode according to claim 1, wherein the electrically conductive mat is provided as an intervening layer separating the first electroactive material from the second electroactive material. 4. The electrode according to claim 1, wherein the first electroactive material is a lead based material. 5. The electrode according to claim 1, wherein the second electroactive material is selected from one or more of the group consisting of high-surface area carbon, ruthenium oxide, silver oxide, cobalt oxide and conducting polymers. 6. The electrode according to claim 5, wherein the high surface area carbon is one or more materials selected from the group consisting of activated carbon, carbon black, amorphous carbon, carbon nanoparticles, carbon nanotubes and carbon fibres. 7. The electrode according to claim 6, wherein the high surface area carbon is activated carbon. 8. An electrical storage device comprising at least one pair of negative and positive electrodes, wherein at least one electrode is an electrode according to claim 1. 9. The electrical storage device according to claim 8, wherein the at least one electrode is a negative electrode comprising a first electroactive material selected from one or more of the group consisting of cadmium, metal hydrides, lead and zinc. 10. The electrical storage device according to claim 9, wherein the first electroactive material is lead. 11. The electrical storage device according to claim 8, wherein the at least one electrode is a positive electrode comprising a first electroactive material selected from one or more of the group consisting of nickel oxide, lead oxide and silver. 12. The electrical storage device according to claim 11, wherein the first electroactive material is lead oxide. 13. The electrical storage device according to claim 8, wherein the device is a valve regulated device. 14. The electrical storage device according to claim 8, wherein the electrical storage device is configured for operation under a compression force of less than about 80 kPa. 15. An electrical storage device comprising at least one lead dioxide based positive electrode and at least one sponge lead based negative electrode in a sulphuric acid electrolyte solution, wherein the at least one sponge lead based negative electrode comprises: a current collector in the form of a current collector grid or plate;a first layer deposited on a planar side of the current collector grid or plate, the first layer comprising sponge lead;a second layer layered upon the first layer, the second layer comprising an electrically conductive mat comprising a network of interconnected electrically conductive carbon fibres;a third layer layered upon the second layer, the third layer comprising a second electroactive material;wherein the sponge lead has a higher energy density than the second electroactive material, and the second electroactive material has a higher rate capability than the sponge lead. 16. A process for fabricating an electrode according to claim 1, the process comprising: forming a composite layer comprising at least one of the first electroactive material and the second electroactive material deposited on and/or incorporated within the electrically conductive mat; andcoupling the composite layer to the current collector. 17. A process for fabricating an electrode according to claim 16, wherein the process further comprises forming a coating of the first electroactive material on the current collector, and coupling the composite layer to the coating of the first electroactive material on the current collector. 18. The electrode according to claim 1, wherein one of the first electroactive material layer and the second electroactive material layer is in the form of a composite layer with the electrically conductive mat. 19. The electrode according to claim 1, wherein the first electroactive material layer forms a first layer layered upon the current collector, the electrically conductive mat layer forms a second layer layered upon the first layer, and the second electroactive material forms a third layer layered upon the second layer.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (106)
Yasuda Hideo (Kyoto JPX) Yoshimura Kozi (Kyoto JPX), Alkaline storage battery and process for preparing the same.
Jensen Daniel B. (Albuquerque NM) Cornette James B. (Austin TX) Heyse Mark W. (Destin FL) Stearns Ronald E. (Esther FL), Battery charging capacitors electromagnetic launcher.
Nebrigic Dragan Danilo ; Jevtitch Milan Marcel ; Gartstein Vladimir ; Milam William Thomas ; Sherrill James Vig ; Busko Nicholas ; Hansen Peter, Dynamically-controlled, intrinsically regulated charge pump power converter.
Okamura Michio (Yokohama JPX) Morimoto Takeshi (Yokohama JPX) Hiratsuka Kazuya (Yokohama JPX), Electric apparatus with a power supply including an electric double layer capacitor.
Suhara Manabu,JPX ; Hiratsuka Kazuya,JPX ; Kawasato Takeshi,JPX ; Tsushima Manabu,JPX, Electric double layer capacitor and an assembled cell type power source device.
Anani Anaba A. (Lauderhill FL) Malaspina Frank P. (Plantation FL) Blanton Gerald W. (Lighthouse Point FL), Electrical energy storage device and method of charging and discharging same.
Bai Lijun (Vernon Hills CAX) Lian Ke K. (Northbrook IL) Stengel Robert E. (Pompano Beach FL), Electrochemical charge storage device having constant voltage discharge.
Spillman, David M.; Takeuchi, Esther S., Electrochemical lithium ion secondary cell having multiplate and jellyroll electrodes with differing discharge rate regions.
Spillman, David M.; Takeuchi, Esther S., Electrochemical lithium ion secondary cell having multiplate electrodes with differing discharge rate regions.
Bai Lijun ; Li Changming ; Anani Anaba A. ; Thomas George ; Wu Han ; Lian Ke Keryn ; Denton ; III Frank R. ; Howard Jason N., High power, high energy, hybrid electrode and electrical energy storage device made therefrom.
Thomas George ; Fernandez Jose' M. ; Garrett Scott M. ; More' Georgina, Independent dual-switch system for extending battery life under transient loads.
Shmatko, Pavel Andreevich; Urisson, Nina Azrielevna; Richagov, Alexey Yurievich; Volfkovich, Yuri Mironovich, Method of formation and charge of the negative polarizable carbon electrode in an electric double layer capacitor.
Kurihara,Masato; Maruyama,Satoshi, Method of making an electrode for an electrochemical capacitor and the method of making an electrochemical capacitor.
Tong Robert R. (Sunnyvale CA) Poplett James M. (Cupertino CA) McEwen Alan B. (Palo Alto CA) Mason Gary E. (Sunnyvale CA) Goodwin Mark L. (Santa Cruz CA) Tsai K. C. (Saratoga CA) Anderson Ronald L. (L, Method to fabricate a reliable electrical storage device and the device thereof.
Adrianov,Michail N.; Litvinskaya,Vera V.; Popov,Vitaly P.; Zaruchejskaya,Natalya M.; Chebykin,Valentin V.; Shmatko,Pavel A.; Carev,Valery A., Modified activated carbon for capacitor electrodes and method of fabrication thereof.
Thompson Lillian C. (Buffalo Grove IL) Li Changming (Vernon Hills IL) Lian Ke K. (Northbrook IL), Modified polymer electrodes for energy storage devices and method of making same.
Shinozaki, Yasuo; Hiratsuka, Kazuya; Ikeda, Katsuji, PROCESS FOR PRODUCING A CARBON MATERIAL FOR AN ELECTRIC DOUBLE LAYER CAPACITOR ELECTRODE, AND PROCESSES FOR PRODUCING AN ELECTRIC DOUBLE LAYER CAPACITOR ELECTRODE AND AN ELECTRIC DOUBLE LAYER CAPACIT.
Takeuchi Masataka,JPX ; Naijo Shuichi,JPX ; Ohkubo Takashi,JPX ; Nishioka Ayako,JPX ; Nishioka Masaaki,JPX, Polymerizable compound, solid polymer electrolyte using the same and use thereof.
Volfkovich,Yuri Mironovich; Rychagov,Alexey Yurievich; Urisson,Nina Azrielevna; Serdyuk,Tatiana M., Positive electrode of an electric double layer capacitor.
Okada Yasushi,JPX ; Hiyama Satoshi,JPX ; Inaba Atsushi,JPX ; Kawabe Kouji,JPX ; Urabe Masanobu,JPX, Power supply unit and electric vehicle incorporating the same.
Tong Robert (Sunnyvale CA) Poplett James M. (Cupertino CA) Goodwin Mark L. (Santa Cruz CA) Anderson Ronald L. (Lino Lakes MN) Nelson James P. (Shoreview MN), Screen printing of microprotrusions for use as a space separator in an electrical storage device.
Kaschmitter James L. (6291 Alisal St. Pleasanton CA 94566) Mayer Steven T. (16026 Selborne Dr. San Leandro CA 94578) Pekala Richard W. (802 Cliffside Dr. Pleasant Hill CA 94523), Supercapacitors based on carbon foams.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.