Negative electrode for non-aqueous electrolyte secondary battery, method for manufacturing the same, and non-aqueous electrolyte secondary battery using the same
US8029933B2 · kind B2 · utility
2Cited by
2References
8Claims
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Key dates
| Filing date | Sep 21, 2007 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Nov 21, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49115
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A negative electrode for a non-aqueous electrolyte secondary battery reversibly inserting and extracting lithium ions, and including current collector having concave portion and convex portion on at least one surface thereof; and columnar body formed on convex portion of current collector and including columnar body portions laminated in n stages (n≧2) in which a content ratio of an element sequentially changes in the longitudinal direction of the current collector. The content ratio of an element is different between in an odd stage and in an even stage of columnar body portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.