Negative active material and negative electrode and lithium battery containing the material, and method of manufacturing the same
US9577252B2 · kind B2 · utility
2Cited by
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19Claims
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Key dates
| Filing date | Apr 25, 2014 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Sep 13, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an aspect, a negative active material, a negative electrode and a lithium battery including the negative active material, and a method of manufacturing the negative active material is provided. The negative active material includes a silicon-based active material substrate; a metal oxide nanoparticle disposed on a surface of the silicon-based active material substrate. An initial irreversible capacity of the lithium battery may be decreased and lifespan characteristics may be improved by using the negative active material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.