Nonaqueous electrolyte secondary cells
US6808848B2 · kind B2 · utility
32Cited by
4References
3Claims
0Family size
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Key dates
| Filing date | Sep 27, 2001 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Mar 5, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Used as the positive electrode active substance of a lithium ion secondary cell is a mixture of a lithium-nickel-cobalt-manganese composite oxide represented by the formula LiNi(1−x−y)COxMnyO2 wherein 0.5<x+y<1.0 and 0.1<y<0.6 and a lithium-manganese composite oxide represented by the formula Li(1+Z)Mn2O4 wherein 0≦z≦0.2. The substance used gives outstanding power characteristics to the cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.