Negative-electrode active material for nonaqueous-electrolyte secondary battery production process for the same, negative electrode for nonaqueous-electrolyte secondary battery, and nonaqueous-electrolyte secondary battery
US9190186B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2013 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Apr 10, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Providing a negative-electrode active material for nonaqueous-electrolyte secondary battery, the negative-electrode active material enabling an output characteristic to upgrade, a production process for the same, a negative electrode for nonaqueous-electrolyte secondary battery, and a nonaqueous-electrolyte secondary battery. The negative-electrode active material includes an Si-metal-carbon composite composed of: a metal/carbon composite matrix including at least one metal selected from the group consisting of Cu, Fe, Ni, Ti, Nb, Zn, In and Sn, at least one member selected from the group consisting of N, O, P and S, and amorphous carbon; and nanometer-size Si particles dispersed in the metal/carbon composite matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.