Negative electrode material for lithium-ion battery, and use therefor
US10164257B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 16, 2015 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Dec 26, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A negative electrode material for a lithium ion battery containing a composite material, the composite material including silicon-containing particles, graphitic carbon material particles, and a carbonaceous carbon material, in which the composite material has a ratio (A/B) of an area (A) of a peak near 100 eV derived from metal Si to an area (B) of a peak near 103 eV derived from silicon oxide, as measured by XPS, of not less than 0.10 and not more than 2.30. Also disclosed is a paste including the negative electrode material, as well as a negative electrode for a lithium ion battery including a formed body of the paste and a lithium ion battery including the negative electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.