Negative electrode contacting silicon oxide active material layers for lithium secondary battery and method for producing the same
US8771874B2 · kind B2 · utility
2Cited by
2References
12Claims
0Family size
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Key dates
| Filing date | Mar 13, 2008 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Feb 26, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The negative electrode for a lithium secondary battery includes: a current collector 11 having a plurality of bumps 11a on a surface thereof; a first active material layer formed on the current collector 11; and a second active material layer 15 disposed on the first active material layer 12 and including a plurality of active material particles 14. Each of the plurality of active material particles 14 is located on a corresponding bump 11a of the current collector 11, and each of the first active material layer 12 and the plurality of active material particles 14 has a chemical composition represented as SiOx (0<x<1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.