Nickel-metal hydride/hydrogen hybrid battery using alkali ion conducting separator
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IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-010/26
H01M-002/16
H01M-004/58
H01M-010/34
H01M-010/44
H01M-004/92
H01M-012/08
출원번호
US-0364169
(2012-02-01)
등록번호
US-9209445
(2015-12-08)
발명자
/ 주소
Joshi, Ashok V.
Gordon, John Howard
Bhavaraja, Sai
출원인 / 주소
CERAMATEC, INC.
대리인 / 주소
Fonda, David
인용정보
피인용 횟수 :
0인용 특허 :
76
초록▼
A nickel-metal hydride (hydrogen) hybrid storage battery comprising a positive electrode containing nickel hydroxide, a combination negative electrode containing a hydrogen storage alloy electrode and a reversible hydrogen electrode, an alkaline electrolyte, and an alkali conducting separator dispos
A nickel-metal hydride (hydrogen) hybrid storage battery comprising a positive electrode containing nickel hydroxide, a combination negative electrode containing a hydrogen storage alloy electrode and a reversible hydrogen electrode, an alkaline electrolyte, and an alkali conducting separator disposed between the positive electrode and the negative electrode. The alkali conducting separator may be a substantially non-porous ion conducting material wherein the alkali conducted is Na, K, or Li. A method of charging and discharging such a hybrid battery is also disclosed.
대표청구항▼
1. A nickel-metal hydride (hydrogen) hybrid battery comprising: a positive electrode comprising nickel hydroxide;a combination negative electrode comprising a hydrogen storage alloy electrode and a reversible hydrogen electrode; anda separator comprising a substantially non-porous solid alkali metal
1. A nickel-metal hydride (hydrogen) hybrid battery comprising: a positive electrode comprising nickel hydroxide;a combination negative electrode comprising a hydrogen storage alloy electrode and a reversible hydrogen electrode; anda separator comprising a substantially non-porous solid alkali metal ion super ion conducting material disposed between the positive electrode and the negative electrode, wherein the alkali metal ion is Na, K, Li, or combinations thereof. 2. The nickel-metal hydride (hydrogen) hybrid battery according to claim 1, wherein the separator comprises a substantially non-porous ceramic material. 3. The nickel-metal hydride (hydrogen) hybrid battery according to claim 1, wherein the separator comprises a material having the formula Me1+xZr2SixP3−xO12 where 0≦x≦3, and where Me comprises Na, K, Li or any combination thereof. 4. The nickel-metal hydride (hydrogen) hybrid battery according to claim 3, wherein the separator comprises a material having the formula Na1+xZr2SixP3−xO12 where 0≦x≦3. 5. The nickel-metal hydride (hydrogen) hybrid battery according to claim 1, wherein the separator comprises a material having the formula Me5RESi4O12 where Me comprises Na, K, Li or any combinations thereof, where RE comprises Y, Nd, Dy, Sm, or any combination thereof. 6. The nickel-metal hydride (hydrogen) hybrid battery according to claim 1, wherein the separator comprises a non-stoichiometric alkali-deficient material having the formula (Me5RESi4O12)1−δ(RE2O3.2SiO2)δ, where Me comprises Na, K, Li, or combinations thereof, where RE comprises Nd, Dy, Sm, or combinations thereof and where δ is the measure of deviation from stoichiometry. 7. The nickel-metal hydride (hydrogen) hybrid battery according to claim 1, wherein the separator comprises a monolithic flat plate, a monolithic tube, a monolithic honeycomb, or supported structures of the foregoing. 8. The nickel-metal hydride (hydrogen) hybrid battery according to claim 1, wherein the separator comprises a layered alkali ion conducting ceramic-polymer composite membrane, comprising alkali ion-selective polymers layered on alkali ion conducting ceramic solid electrolyte materials. 9. The nickel-metal hydride (hydrogen) hybrid battery according to claim 1, wherein the separator is substantially impermeable to hydrogen. 10. The nickel-metal hydride (hydrogen) hybrid battery according to claim 1, further comprising an alkaline electrolyte. 11. The nickel-metal hydride (hydrogen) hybrid battery according to claim 10, wherein alkaline electrolytes are positioned on either side of the separator. 12. The nickel-metal hydride (hydrogen) hybrid battery according to claim 11, wherein alkaline electrolytes are different. 13. The nickel-metal hydride (hydrogen) hybrid battery according to claim 1, wherein the hydrogen storage alloy electrode comprises a mixture of hydrogen storage alloy and electrolyte. 14. The nickel-metal hydride (hydrogen) hybrid battery according to claim 10, wherein the reversible hydrogen electrode comprises a gas diffusion electrode that interfaces with the alkaline electrolyte and a gaseous phase for electrochemical oxidation of hydrogen. 15. The nickel-metal hydride (hydrogen) hybrid battery according to claim 14, wherein the gas diffusion electrode comprises at least one reaction layer having dispersed therein a catalyst comprising platinum, wherein the at least one reaction layer is in fluid communication with the alkaline electrolyte and wherein the gas diffusion layer is in fluid communication with a gas comprising hydrogen. 16. The nickel-metal hydride (hydrogen) hybrid battery according to claim 15, wherein the reversible hydrogen electrode is positioned adjacent to the hydrogen storage alloy electrode such that the reaction layer of the reversible hydrogen electrode is facing the hydrogen storage alloy electrode and the gas diffusion layer is facing the hydrogen gas. 17. The nickel-metal hydride (hydrogen) hybrid battery according to claim 1, wherein the hydrogen storage alloy electrode and the reversible hydrogen electrode have different charge storage capacities. 18. The nickel-metal hydride (hydrogen) hybrid battery according to claim 1, wherein the combination negative electrode comprises hydrogen storage alloy electrode material, an alkaline electrolyte, and a platinum catalyst. 19. The nickel-metal hydride (hydrogen) hybrid battery according to claim 18, wherein the combination negative electrode is unitary component. 20. The nickel-metal hydride (hydrogen) hybrid battery according to claim, 1 wherein the combination negative electrode comprises a platinum catalyst and an alkaline electrolyte dispersed onto the hydrogen storage alloy material. 21. The nickel-metal hydride (hydrogen) hybrid battery according to claim 15, wherein the combination negative electrode comprises hydrogen storage alloy material, an alkaline electrolyte, and reaction layer material of the reversible hydrogen electrode. 22. The nickel-metal hydride (hydrogen) hybrid battery according to claim 15, wherein the combination negative electrode comprises hydrogen storage alloy material, an alkaline electrolyte and the materials from the gas diffusion electrode and the reaction layer of the reversible hydrogen electrode.
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