Electrode for nonaqueous electrolyte secondary battery, method for producing same, and nonaqueous electrolyte secondary battery comprising such electrode for nonaqueous electrolyte secondary battery
US7781101B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2007 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Feb 17, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrode for a non-aqueous electrolyte secondary battery 6 according to the present invention includes: a current collector 3; a first active material layer 2 formed on the current collector 3; and a second active material layer 5 provided on the first active material layer 2, the second active material layer 5 including a plurality of active material particles 4. The plurality of active material particles 4 is mainly of a chemical composition represented as SiOx (0≦x<1.2). The first active material layer 2 is mainly of a chemical composition represented as SiOy (1.0≦y<2.0, y>x). The area in which the first active material layer 2 is in contact with the plurality of active material particles 4 is smaller than the area in which the current collector 3 is in contact with the first active material layer 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.