Negative active material for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery comprising the same
US8753778B2 · kind B2 · utility
4Cited by
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13Claims
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Assignee
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Key dates
| Filing date | Oct 9, 2009 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Jan 11, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a negative active material for a rechargeable lithium battery is provided that includes composite particles including an amorphous or semi-crystalline carbon matrix, and crystalline graphite powder particles having an average particle diameter of 0.2 to 3 μm dispersed in the matrix. The composite particles have an average particle diameter of 4 to 40 μm. A method of preparing the same and a rechargeable lithium battery including the negative active material are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.