Negative active material, negative electrode and lithium battery including the negative active material, and method of preparing the negative active material
US9356287B2 · kind B2 · utility
1Cited by
4References
20Claims
0Family size
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Key dates
| Filing date | Jul 14, 2014 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Jul 20, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A negative active material, a lithium battery including the negative active material, and a method of preparing the negative active material. The negative active material includes a silicon-based alloy including Si, Al, and Fe. The silicon-based alloy includes an active phase of silicon nanoparticles and an inactive phase of Si3Al3Fe2 and Si2Fe in a ratios suitable to improve the lifespan of the lithium battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.