IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0875378
(2007-10-19)
|
등록번호 |
US-7524581
(2009-07-01)
|
발명자
/ 주소 |
- Issaev, Nikolai N.
- Pozin, Michael
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
59 |
초록
Electrochemical cells are disclosed. In some embodiments, an electrochemical cell includes a cathode having less than about 2,000 ppm of water, an anode, and an electrolyte having a first lithium salt and LiPF6.
대표청구항
▼
What is claimed is: 1. A primary electrochemical cell, comprising: a cathode comprising a cathode active material consisting of manganese oxide and/or iron disulfide, the cathode having less than about 2,000 ppm of water; a cathode current collector comprising aluminum; an anode comprising lithium;
What is claimed is: 1. A primary electrochemical cell, comprising: a cathode comprising a cathode active material consisting of manganese oxide and/or iron disulfide, the cathode having less than about 2,000 ppm of water; a cathode current collector comprising aluminum; an anode comprising lithium; and an electrolyte comprising lithium trifluoromethanesulfonate LiPF6, and a third lithium salt, the electrolyte not including a perchlorate salt. 2. The cell of claim 1, wherein the cathode has less than 1,500 ppm of water. 3. The cell of claim 1, wherein the cathode has less than 1,000 ppm of water. 4. The cell of claim 1, wherein the cathode has less than 500 ppm of water. 5. The cell of claim 1, wherein the electrolyte comprises, in mole fraction, from 20% to 80% of lithium trifluoromethanesulfonate and from 20% to 80% of LiPF6. 6. The cell of claim 1, wherein the electrolyte further comprises a material selected from the group consisting of ethylene carbonate, propylene carbonate, dimethoxyethane, butylene carbonate, and dioxolane. 7. The cell of claim 1, wherein the electrolyte further comprises propylene carbonate and dimethoxyethane. 8. The cell of claim 7, wherein the electrolyte comprises from about 30% to about 90% by weight of dimethoxyethane. 9. The cell of claim 7, wherein the electrolyte further comprises ethylene carbonate. 10. The cell of claim 9, wherein the electrolyte comprises, by weight, from about 5% to about 30% of ethylene carbonate, and from about 30% to about 90% dimethoxyethane. 11. The cell of claim 1, wherein the electrolyte further comprises ethylene carbonate, butylene carbonate, and dimethoxyethane. 12. The cell of claim 11, wherein the electrolyte comprises, by weight, from about 5% to about 30% of ethylene carbonate, and from about 30% to about 90% of dimethoxyethane. 13. The cell of claim 1, wherein the electrolyte comprises dioxolane. 14. The cell of claim 1, wherein the lithium salts in the electrolyte consist of lithium trifluoromethanesulfonate LiPF6 and the third lithium salt. 15. The cell of claim 1, wherein the electrolyte further comprises dimethoxyethane and dioxolane. 16. A method, comprising: discharging, only once, a primary electrochemical cell comprising a cathode comprising manganese oxide and/or iron disulfide, the cathode having less than about 2,000 ppm of water, a cathode current collector comprising aluminum, an anode comprising lithium, and an electrolyte comprising lithium trifluoromethanesulfonate LiPF6, and a third lithium salt, the electrolyte not including a perchlorate salt; and disposing the cell without recharging the cell. 17. The method of claim 16, wherein the lithium salts in the electrolyte consist of lithium trifluoromethanesulfonate LiPF6, and the third lithium salt. 18. The method of claim 16, wherein the cathode has less than 1,000 ppm of water. 19. The method of claim 16, wherein the cathode has less than 500 ppm of water. 20. The method of claim 16, wherein the electrolyte further comprises dimethoxyethane and dioxolane. 21. A method of making a primary electrochemical cell, comprising (a) providing a cathode including a current collector comprising aluminum and a cathode active material consisting of manganese dioxide and/or iron disulfide, the cathode having less than 2,000 ppm of water; (b) providing an anode comprising lithium; (c) placing the cathode and the anode into a casing; and (d) adding an electrolyte comprising lithium trifluoromethanesulfonate, LiPF6, and a third lithium salt, but not a perchlorate salt to the casing. 22. The method of claim 21, wherein the cathode has less than 1000 ppm of water. 23. The method of claim 21, wherein the cathode has less than 500 ppm water. 24. The method of claim 21, wherein the electrolyte further comprises a material selected from the group consisting of ethylene carbonate, propylene carbonate, dimethoxyethane, butylene carbonate, and dioxolane. 25. The method of claim 21, wherein the electrolyte further comprises propylene carbonate and dimethoxyethane. 26. The method of claim 21, wherein the electrolyte further comprises ethylene carbonate. 27. The method of claim 21, wherein the electrolyte comprises, by weight, from about 5% to about 30% of ethylene carbonate, and from about 30% to about 90% dimethoxyethane. 28. The method of claim 21, wherein the electrolyte further comprises ethylene carbonate, butylene carbonate, and dimethoxyethane. 29. The method of claim 21, wherein the electrolyte comprises dioxolane. 30. The method of claim 21, further comprising, after steps (a)-(d), discharging the cell only once and then discarding the cell. 31. The method of claim 21, wherein the electrolyte further comprises dimethoxyethane and dioxolane. 32. The method of claim 21, wherein the lithium salts in the electrolyte consist of lithium trifluoromethane sulfonate, LiPF6, and the third lithium salt.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.