Positive electrode material and cell for nonaqueous electrolyte secondary battery
US6613478B2 · kind B2 · utility
6Cited by
5References
11Claims
0Family size
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Key dates
| Filing date | Feb 26, 2001 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Sep 21, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A positive electrode active material for a nonaqueous electrolyte secondary battery includes at least a lithium-deficient manganese layered composite oxide represented by the general formula Li1-xMnO2-&dgr;. A lithium deficiency quantity x is in the range of 0.03<x≦0.5. An oxygen nonstoichiometry quantity &dgr; is equal to or smaller than 0.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.