Nonaqueous electrolyte secondary battery and method of forming positive electrode
US8048564B2 · kind B2 · utility
1Cited by
5References
6Claims
0Family size
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Key dates
| Filing date | Jun 25, 2008 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Oct 21, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A positive electrode active material is formed of a lithium containing layered oxide. The lithium containing layered oxide contains either or both of LiANaBMnxCoyO2±α that belongs to a space group P63mc or LiANaBMnxCoyO2±α that belongs to a space group Cmca. The lithium containing layered oxide contains the LiANaBMnxCoyO2±α as a solid solution, a mixture or both of them. In the LiANaBMnxCoyO2±α, 0.5≦A≦1.2, 0<B≦0.01, 0.40≦x≦0.55, 0.40≦y≦0.55, 0.80≦x+y≦1.10 and 0≦α≦0.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.