Negative active material for rechargeable lithium battery and rechargeable lithium battery including the same
US11631861B2 · kind B2 · utility
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Key dates
| Filing date | Oct 30, 2020 |
| Grant date | Apr 18, 2023 |
| Priority date | — |
| Expiry date | Jun 4, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same, the negative active material including a Si-carbon composite that includes Si nanoparticles and an amorphous carbon, wherein the negative active material has a sphericity of 0.7 or more, and a BET specific surface area of 10 m2/g or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.