Additives for primary electrochemical cells having manganese dioxide cathodes
US5516604A · kind A · utility
16Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1995 |
| Grant date | May 14, 1996 |
| Priority date | — |
| Expiry date | Feb 13, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to alkaline cells containing manganese dioxide cathode active material. A substance selected from the group of compounds Bi.sub.2 O.sub.3, PbO.sub.2, SnO.sub.2, Co.sub.3 O.sub.4, CoO, Bi.sub.2 O.sub.3.3ZrO.sub.3 and K.sub.2 Cr.sub.2 O.sub.7 is added to the cathode of conventional alkaline cells typically having an anode comprising zinc and cathode comprising manganese dioxide and an alkaline electrolyte. The additive increases the specific capacity (amp-hr/g) of the manganese dioxide in the cathode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.