Alkaline battery and manufacturing method of positive electrode material therefor
US7569306B2 · kind B2 · utility
24Cited by
0References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2005 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Sep 8, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M6/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An alkaline battery of the present invention includes a positive electrode material mixture including nickel oxyhydroxide. The nickel oxyhydroxide includes a secondary particle with a crystal structure mainly composed of γ-type at least a portion of the surface layer of the secondary particle, and with a crystal structure mainly composed of β-type in the inner portion of the secondary particle. Based on the present invention, the advantage of the alkaline battery, i.e., excellence in discharge performance under high-load, can be kept and the conventional problem of storage characteristics can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.