Positive electrode material for alkaline storage battery and method of producing the same
US6218046A · kind A · utility
7Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1998 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Sep 2, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a positive electrode material for alkaline storage batteries which has high energy density and causes little capacity reduction even when a charge/discharge cycle is repeated at high temperatures. The positive electrode material for alkaline storage batteries of the present invention comprises nickel hydroxide particles and a layers of cobalt oxide coating the nickel hydroxide particles. A valence of cobalt of the cobalt oxide is greater than 3.0, and the cobalt oxide contains sodium ions or potassium ions inside the crystal and further fixes lithium hydroxide or lithium ions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.