Positive active material for a lithium secondary battery with higher performance and preparation method of the same
US7252906B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Jan 24, 2002 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Oct 10, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same that can improve cycle-life characteristics and storage characteristics at a high temperature by improving structural safety characteristics and electrochemical characteristics, by forming an overlayer comprising an oxide glass phase on the surface of the positive active material, and a lithium secondary battery comprising the positive active material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.