Negative electrode material for lithium secondary battery and its manufacturing method, and negative electrode for lithium secondary battery, and lithium secondary battery
US9070941B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 9, 2011 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Dec 9, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
[Object] The object is to provide a negative electrode material for a lithium secondary battery, wherein a sulfide-based negative electrode with water-resistant properties can exert excellent cycle characteristics and high output performance while maintaining a high discharge capacity and there is no precipitation of lithium dendrites during charge at low temperature.[Means for Solving Problems] A negative electrode material for a lithium secondary battery comprising sulfur and sulfide glass including the following components (i) and (ii):(i) at least one or more elements selected from a group consisting of Sb, As, Bi, Ge, Si, Cu, Zn, Pd, In and Zr; and(ii) at least one or more elements selected from a group consisting of Se, Te, Ga, Sn, Pb, Cd, Al, Fe, Mg, Ca, Co, Ag, Sr, P and Ba,
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.