Lithium-containing silicon oxide powder and making method
US6893621B2 · kind B2 · utility
18Cited by
7References
11Claims
0Family size
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Key dates
| Filing date | Sep 5, 2002 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | May 2, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium ion secondary cell having a high capacity, improved first charge/discharge efficiency and improved cycle performance is obtainable using as the negative electrode material a lithium-containing silicon oxide powder having the formula: SiLixOy wherein x and y are 0<x<1.0 and 0<y<1.5, with the lithium being fused and partially crystallized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.