IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0979040
(2004-10-29)
|
등록번호 |
US-7811705
(2010-11-01)
|
발명자
/ 주소 |
- Scott, Erik R.
- Howard, William G.
- Schmidt, Craig L.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
13 인용 특허 :
119 |
초록
▼
A lithium-ion battery includes a positive electrode that includes a current collector that includes a positive electrode comprising a current collector and an active material comprising a material selected from the group consisting of LiCoO2, LiMn2O4, LiNixCoyNi(1−x−y)O2, LiAlxCoyNi(1&
A lithium-ion battery includes a positive electrode that includes a current collector that includes a positive electrode comprising a current collector and an active material comprising a material selected from the group consisting of LiCoO2, LiMn2O4, LiNixCoyNi(1−x−y)O2, LiAlxCoyNi(1−x−y)O2, LiTixCoyNi(1−x−y)O2, and combinations thereof. The battery also includes a negative electrode that includes a current collector and an active material comprising a lithium titanate material. The current collector of the negative electrode includes a material selected from the group consisting of aluminum, titanium, silver, and combinations thereof. The battery is configured for cycling to near-zero-voltage conditions without a substantial loss of battery capacity.
대표청구항
▼
What is claimed is: 1. A lithium-ion battery comprising: a positive electrode comprising a current collector and an active material comprising a material selected from the group consisting of LiCoO2, LiMn2O4, LiAlxCoyNi(1−x−y)O2 where x is between approximately 0.05 and 0.3 and y is b
What is claimed is: 1. A lithium-ion battery comprising: a positive electrode comprising a current collector and an active material comprising a material selected from the group consisting of LiCoO2, LiMn2O4, LiAlxCoyNi(1−x−y)O2 where x is between approximately 0.05 and 0.3 and y is between approximately 0.1 and 0.3, LiTixCoyNi(1−x−y)O2 where x is between approximately 0.05 and 0.3 and y is between approximately 0.1 and 0.3, and combinations thereof; a negative electrode comprising a foil current collector and an active material comprising a lithium titanate material, the current collector of the negative electrode comprising a material selected from the group consisting of aluminum, titanium, and combinations thereof; and a liquid electrolyte and a polymeric separator provided intermediate the positive electrode and the negative electrode; wherein the positive electrode and the negative electrode are provided in a wound or folded configuration; and whereby the battery is configured for cycling to near-zero-voltage conditions without a substantial loss of battery capacity. 2. The lithium-ion battery of claim 1, wherein the negative current collector comprises aluminum. 3. The lithium-ion battery of claim 2, wherein the positive current collector comprises aluminum. 4. The lithium-ion battery of claim 1, wherein the active material of the negative electrode comprises a conductive material for providing increased conductivity for the negative electrode. 5. The lithium-ion battery of claim 4, wherein the conductive material comprises carbon. 6. The lithium-ion battery of claim 1, wherein the lithium titanate material comprises Li4Ti5O12. 7. The lithium-ion battery of claim 1, wherein the polymeric separator provided intermediate the positive electrode and the negative electrode is porous. 8. The lithium-ion battery of claim 1, wherein the battery has a capacity between approximately 10 mAh and 1000 mAh. 9. The lithium-ion battery of claim 1, wherein the battery has a capacity of approximately 300 mAh. 10. The lithium-ion battery of claim 1, wherein the battery comprises a battery case that comprises titanium. 11. The lithium-ion battery of claim 1, wherein the battery comprises a battery case that comprises aluminum. 12. The lithium-ion battery of claim 1, wherein the current collector of the negative electrode is a metal foil having a thickness of between approximately 100 nanometers and 100 micrometers. 13. The lithium-ion battery of claim 1, wherein the liquid electrolyte comprises a lithium salt dissolved in one or more non-aqueous solvents. 14. The lithium-ion battery of claim 1, wherein the active materials of the positive electrode and the negative electrode are provided on both sides of their associated current collectors. 15. A lithium-ion battery comprising: a positive electrode comprising a current collector and an active material comprising a material selected from the group consisting of LiCoO2, LiMn2O4, LiNi1/3Co1/3Mn1/3O2, LiAlxCoyNi(1−x−y)O2 where x is between approximately 0.05 and 0.3 and y is between approximately 0.1 and 0.3, LiTixCoyNi(1−x−y)O2 where x is between approximately 0.05 and 0.3 and y is between approximately 0.1 and 0.3, and combinations thereof; a negative electrode comprising a foil current collector formed of a material including titanium and an active material provided on the foil current collector that comprises a lithium titanate material; and a polymeric separator provided intermediate the positive electrode and the negative electrode; wherein the positive electrode and the negative electrode have a wound or folded configuration; and whereby the battery is configured for cycling to near-zero-voltage conditions without a substantial loss of battery capacity. 16. The lithium-ion battery of claim 1, further comprising a battery case that comprises an aluminum alloy. 17. A lithium-ion battery comprising: a positive electrode comprising a current collector and an active material selected from the group consisting of LiCoO2, LiMn2O4, LiAlxCoyNi(1−x−y)O2 where x is between approximately 0.05 and 0.3 and y is between approximately 0.1 and 0.3, LiTixCoyNi(1−x−y)O2 where x is between approximately 0.05 and 0.3 and y is between approximately 0.1 and 0.3, and combinations thereof; a negative electrode comprising a negative current collector provided as a foil and an active material provided on the negative current collector, the negative current collector comprising aluminum and the active material provided on the negative current collector comprising a lithium titanate material; a liquid electrolyte; a separator comprising a polymeric material provided between the positive electrode and the negative electrode, wherein the positive electrode and the negative electrode are wound or folded electrodes; and a battery housing comprising a material selected from the group consisting of aluminum, titanium, and alloys thereof. 18. The lithium-ion battery of claim 17, wherein the current collector of the positive electrode comprises aluminum. 19. The lithium-ion battery of claim 17, wherein the negative current collector comprises an aluminum alloy. 20. The lithium-ion battery of claim 17, wherein the battery housing is in contact with the negative electrode and comprises an aluminum alloy. 21. The lithium-ion battery of claim 17, wherein the active material of the negative electrode further comprises a conductive material for providing increased conductivity for the negative electrode. 22. The lithium-ion battery of claim 21, wherein the conductive material comprises carbon. 23. The lithium-ion battery of claim 17, wherein the lithium titanate material comprises Li4Ti5O12. 24. The lithium-ion battery of claim 17, wherein the positive electrode and the negative electrode have a zero voltage crossing potential above the decomposition potential of the active material of the positive electrode. 25. The lithium-ion battery of claim 24, wherein the zero voltage crossing potential is approximately 3.8 volts. 26. The lithium-ion battery of claim 17, wherein the separator is porous. 27. The lithium-ion battery of claim 17, wherein the battery has a capacity between approximately 10 mAh and 1000 mAh. 28. The lithium-ion battery of claim 17, wherein the battery has a capacity of approximately 75 mAh. 29. The lithium-ion battery of claim 17, wherein the battery housing comprises titanium. 30. The lithium-ion battery of claim 17, wherein the battery housing comprises aluminum. 31. The lithium-ion battery of claim 17, wherein the negative current collector is provided in the form of a metal foil having a thickness of between approximately 5 and 25 micrometers. 32. The lithium-ion battery of claim 17, wherein the liquid electrolyte comprises a salt of LiPF6 dissolved in at least one non-aqueous solvent. 33. The lithium-ion battery of claim 17, wherein the active materials of the positive electrode and the negative electrode are provided on two opposing sides of their associated current collectors. 34. A lithium-ion battery comprising: a positive electrode comprising a wound aluminum current collector and an active material provided in contact with the aluminum current collector and selected from the group consisting of LiCoO2, LiAlxCoyNi(1−x−y)O2 where x is between approximately 0.05 and 0.3 and y is between approximately 0.1 and 0.3, LiTixCoyNi(1−x−y)O2 where x is between approximately 0.05 and 0.3 and y is between approximately 0.1 and 0.3, and combinations thereof; a negative electrode comprising a wound aluminum foil current collector and an active material, the active material comprising Li4Ti5O12 provided on the current collector of the negative electrode; and a polymeric separator provided intermediate the positive electrode and the negative electrode; wherein the positive electrode and the negative electrode have a zero voltage crossing potential above a decomposition potential of the active material provided on the positive electrode. 35. The lithium-ion battery of claim 34, wherein the positive electrode and the negative electrode have a zero voltage crossing potential below a corrosion potential of the aluminum foil current collector of the negative electrode. 36. The lithium-ion battery of claim 34, wherein the polymeric separator is a copolymer of polypropylene and polyethylene. 37. The lithium-ion battery of claim 34, wherein the battery comprises a casing that comprises aluminum. 38. The lithium-ion battery of claim 34, wherein the battery has a capacity between approximately 10 mAh and 1000 mAh. 39. The lithium-ion battery of claim 34, wherein the battery has a capacity of approximately 300 mAh. 40. The lithium-ion battery of claim 34, wherein the battery includes a casing that comprises a titanium alloy. 41. The lithium-ion battery of claim 34, wherein the battery includes a housing that comprises an aluminum alloy. 42. The lithium-ion battery of claim 34, wherein the active material of the negative electrode is provided on a first side of the aluminum current collector and on a second side of the aluminum current collector. 43. The lithium-ion battery of claim 34, further comprising a liquid electrolyte.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.