Rechargeable electrochemical apparatus and positive electrode thereof
US4668594A · kind A · utility
5Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1985 |
| Grant date | May 26, 1987 |
| Priority date | — |
| Expiry date | Dec 5, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rechargeable electrochemical device composed of a negative electrode (4) which comprises an alkali metal as an active material, a non-aqueous electrolyte (6), and a positive electrode (1). The positive electrode (1) is composed of an oxide of chromium and vanadium represented by the general formula: EQU Cr.sub.x V.sub.2(1-x) O.sub.5-(2+y)x (wherein 0.2.ltoreq.x.ltoreq.0.9, 0.1.ltoreq.y.ltoreq.1.0). The rechargeable electrochemical device offers a high discharge voltage, a large discharge capacity, linear discharge voltage, and the capacity to withstand over-charging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.