Double current collector cathode design using the same active material in varying formulations for alkali metal or ion electrochemical cells
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-004/64
H01M-006/00
출원번호
US-0970341
(2001-10-03)
발명자
/ 주소
Gan, Hong
Takeuchi, Esther S.
출원인 / 주소
Wilson Greatbatch Ltd.
대리인 / 주소
Scalise, Michael F.
인용정보
피인용 횟수 :
41인용 특허 :
17
초록▼
A new sandwich cathode design is provided comprising a cathode active material mixed with a binder and a conductive diluent in at least two differing formulations. The formulations are then individually pressed on opposite sides of a current collector, so that both are in direct contact with the cur
A new sandwich cathode design is provided comprising a cathode active material mixed with a binder and a conductive diluent in at least two differing formulations. The formulations are then individually pressed on opposite sides of a current collector, so that both are in direct contact with the current collector. Preferably, the active formulation on the side of the current collector facing the anode is of a lesser percentage of the active material than that on the opposite side of the current collector. Such an exemplary cathode design might look like: SVO (100-x % active)/current collector/SVO (100-y % active)/current collector/SVO (100-x % active), wherein x is greater than y.
대표청구항▼
A new sandwich cathode design is provided comprising a cathode active material mixed with a binder and a conductive diluent in at least two differing formulations. The formulations are then individually pressed on opposite sides of a current collector, so that both are in direct contact with the cur
A new sandwich cathode design is provided comprising a cathode active material mixed with a binder and a conductive diluent in at least two differing formulations. The formulations are then individually pressed on opposite sides of a current collector, so that both are in direct contact with the current collector. Preferably, the active formulation on the side of the current collector facing the anode is of a lesser percentage of the active material than that on the opposite side of the current collector. Such an exemplary cathode design might look like: SVO (100-x % active)/current collector/SVO (100-y % active)/current collector/SVO (100-x % active), wherein x is greater than y. size less than 0.1 μm. 3. An article comprising: a substrate; and a coating deposited on the substrate, the coating containing, at least in part, a γ-Al2O3phase without containing any significant portion of α-Al2O3phase, the coating having a hardness of at least 20 GPa, and is essentially free of halogen impurities. 4. The article of claim 3, wherein the Al2O3layer has a preferred growth orientation in the [ 440 ] -direction with a texture coefficient ≥1.5 defined as below: , a dielectric film contiguous to the transparent substrate, a metal film, a shielding film contiguous to the metal film, a metal oxide film, and a protective film of from 10 .ANG. to 100 .ANG. of silicon nitride contiguous to said metal oxide film. 12. The transparent article of claim 7 wherein the metal film is silver. 13. The transparent article of claim 12 wherein the metal film of silver is 70-100 Angstroms. 14. The transparent article of claim 11 wherein the index of refraction of the metal oxide film is essentially the same as silicon nitride. 15. The transparent article of claim 11 wherein the shielding film and the metal oxide film are contiguous. 16. The transparent article of claim 11 wherein the metal oxide film is zinc oxide or titanium dioxide. 17. The transparent article of claim 11 wherein the metal film is 70-100 Angstroms. 18. The transparent article of claim 11 wherein the combined thickness of said second dielectric film and the silicon nitride protective film ranges from about 250 to 400 .ANG.. contact with each other and allowing passage of gas therebetween, and heating said solid phase silicon monoxide and said solid phase diamond in a temperature range of 1150 to 1450° C. 16. The method of manufacturing a coated diamond according to claim 15, wherein said solid phase silicon monoxide (12) is arranged below said solid phase diamond (11) with a porous separation layer (17) arranged between said silicon monoxide and said diamond. 17. The method of manufacturing a coated diamond according to claim 16, wherein said porous separation layer is a felt (17) formed of carbon. 18. The method of manufacturing a coated diamond according to claim 15, wherein said silicon monoxide (12) and said diamond (11) are placed in a container (15) having a lid (16) put on the container, said container is provided in a high vacuum of at least 10-2Torr, and thereafter said heating is performed. 19. The method of manufacturing a coated diamond according to claim 18, wherein said container is an alumina crucible (15) having its interior covered with a carbon sheet (14), the lid (16) formed of alumina is put on said alumina crucible to shield said silicon monoxide and said diamond in said container from outside air, and said heating is performed for said alumina crucible including said silicon monoxide and said diamond for 10 minutes to 6 hours. 20. The method of manufacturing a coated diamond according to claim 19, wherein said diamond and said silicon monoxide placed in said alumina crucible have a weight ratio of (2:1) to (20:1). 21. The method of manufacturing a coated diamond according to claim 15, wherein said diamond is a single crystal diamond having a mean particle diameter of 0.1 to 3000 μm. 22. The method of manufacturing a coated diamond according to claim 15, wherein said diamond is of single crystal and in a shape of plate. 23. The method of manufacturing a coated diamond according to claim 15, wherein said diamond is of polycrystal and in a shape of plate.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (17)
Takeuchi Esther S. (East Amherst NY) Leising Randolph A. (Williamsville NY), Alternate synthetic method for mixed metal oxide cathode materials.
Dasgupta Sankar (c/o The Electrofuel Manufacturing Company Ltd. 21 Hanna Avenue Toronto ; Ontario CAX M6K 1W9 ) Jacobs James K. (69 Albany Avenue Toronto ; Ontario CAX), Composite electrode for a lithium battery.
Weiss Douglas J. (Plymouth MN) Cretzmeyer John W. (Richfield MN) Crespi Ann M. (Minneapolis MN) Howard William G. (Roseville MN) Skarstad Paul M. (Plymouth MN), Electrochemical cells with end-of-service indicator.
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.
Ebel Steven J. (Clarence Center NY) Smesko Sally Ann (North Tonawanda NY) Takeuchi Esther S. (East Amherst NY), Mixed cathode formulation for achieving end-of-life indication.
Pedicini Christopher S. (Marietta GA) Thibault William Charles (Melrose FL) Turner Chris Anthony (Chamblee GA) Tinker Lawrence Andrew (Woodstock GA), Split anode for a dual air electrode cell.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.