Negative active material for rechargeable lithium battery and rechargeable lithium battery comprising same
US8309254B2 · kind B2 · utility
1Cited by
1References
27Claims
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Key dates
| Filing date | May 6, 2010 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | May 13, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24997
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A negative active material for a rechargeable lithium battery includes: a crystalline carbon core including pores; an amorphous carbon shell positioned on the core surface; metal nanoparticles dispersed inside the pores; and amorphous carbon inside the pores, wherein a first particle diameter difference (D50−D10) of the nanoparticles is from about 70 to about 150 nm and the second particle diameter difference (D90−D50) of the nanoparticles is from about 440 to about 520 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.