Composite anode active material, anode and lithium battery comprising the material, and method of preparing the same
US9112221B2 · kind B2 · utility
1Cited by
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13Claims
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Key dates
| Filing date | Feb 5, 2013 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Jul 6, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A composite anode active material, an anode and a lithium battery each including the composite anode active material, and a method of preparing the composite anode active material. The composite anode active material includes a composite core, and a coating layer covering at least a region of the composite core, wherein the composite core includes a carbonaceous substrate and a metal/semi-metal nanostructure on the carbonaceous substrate, the coating layer is more predominant on the nanostructure than on the carbonaceous substrate, and the coating layer includes a metal oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.