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US 6,294,292 B1Granted
Secondary power source
AssigneeAsahi Glass Company, Limited
InventorsManabu Tsushima, Takeshi Morimoto, Yong Che
Life of this patent
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Abstract
A secondary power source, which comprises a positive electrode containing activated carbon, a negative electrode containing a carbon material capable of doping and undoping lithium ions, and an organic electrolyte containing a lithium salt, wherein the ratio of the positive electrode capacity (C+) to the negative electrode capacity (C−), i.e. C+/C−, is from 0.1 to 1.2.
Claims18
A secondary power source, which comprises
- a positive electrode containing activated carbon,
- a negative electrode containing a carbon material capable of doping and undoping lithium ions, and
- an organic electrolyte containing a lithium salt, wherein
- a ratio of the positive electrode capacity (C+) to the negative electrode capacity (C−), i.e. C+/C−, is from 0.1 to 1.2,
- the positive electrode has a thickness of from 100 to 200 μm, and
- the negative electrode has a thickness of from 10 to 50 μm.
3 more elements
A secondary power source, which comprises
- a positive electrode containing activated carbon,
- a negative electrode containing a carbon material capable of doping and undoping lithium ions, and
- an organic electrolyte containing a lithium salt, wherein
- a ratio of the positive electrode capacity (C+) to the negative electrode capacity (C−), i.e. C+/C−, is from 0.1 to 1.2, and
- the positive electrode contains a lithium transition metal oxide in an amount of from 0.1 to 20 wt %.
2 more elements
Dependencies are inferred from the claim text.