Negative electrodes for lithium cells and batteries
US6855460B2 · kind B2 · utility
32Cited by
4References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2002 |
| Grant date | Feb 15, 2005 |
| Priority date | — |
| Expiry date | Jan 3, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A negative electrode is disclosed for a non-aqueous electrochemical cell. The electrode has an intermetallic compound as its basic structural unit with the formula M2M′ in which M and M′ are selected from two or more metal elements including Si, and the M2M′ structure is a Cu2Sb-type structure. Preferably M is Cu, Mn and/or Li, and M′ is Sb. Also disclosed is a non-aqueous electrochemical cell having a negative electrode of the type described, an electrolyte and a positive electrode. A plurality of cells may be arranged to form a battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.