Negative active material, method of manufacturing the same, and lithium battery including the negative active material
US9178213B2 · kind B2 · utility
1Cited by
1References
10Claims
0Family size
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Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Aug 10, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an aspect, a negative active material, a method of preparing the negative active material, and a lithium battery including the negative active material are provided. The method of preparing the negative active material may increase pulverizing efficiency in pulverizing a silicon-based bulky particle into a nano-size silicon-based primary particle and decrease a capacity loss of the obtained negative active material. The nano-size negative active material has excellent crystalline characteristics, high capacity, and high initial efficiency, due to a decrease in surface oxidation and surface damage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.