Cathode active material and lithium secondary battery containing the same
US7670722B2 · kind B2 · utility
2Cited by
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10Claims
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Key dates
| Filing date | Aug 14, 2006 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Mar 19, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a non-aqueous electrolyte-based, high-power lithium secondary battery having a long service life and superior safety at both room temperature and high temperature, even after repeated high-current charging and discharging. The battery comprises a cathode active material composed of a mixture of lithium/manganese spinel oxide and lithium/nickel/cobalt/manganese composite oxide wherein at least one of two oxides has an average particle diameter of more than 15 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.