Negative active material and negative electrode and lithium battery including the material
US10553865B2 · kind B2 · utility
2Cited by
2References
15Claims
0Family size
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Key dates
| Filing date | Aug 3, 2016 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Aug 3, 2036 |
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 includes a silicon-based alloy, and the silicon-based alloy includes a Si single phase, a FeSi2 alpha phase, and a FeSi2 beta phase, wherein an intensity ratio of a second diffraction peak of the FeSi2 beta phase to a first diffraction peak of the FeSi2 alpha phase may be 0.1 or higher. A negative electrode includes the negative active material and a lithium battery includes the negative electrode. Lifespan characteristics of the lithium battery including the negative active material may improve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.