Negative active material for rechargeable lithium battery and rechargeable lithium battery including the same
US11394021B2 · kind B2 · utility
0Cited by
0References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2019 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Nov 6, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A negative active material and a rechargeable lithium battery, the negative active material including a silicon-carbon composite, the silicon-carbon composite including crystalline carbon; amorphous carbon; and silicon nanoparticles having a needle shape, a flake shape, a sheet shape, or a combination thereof, wherein the silicon nanoparticles have a D50 particle diameter of 5 nm to 150 nm and an aspect ratio of 4 to 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.