Metal-air cathode and cell having catalytically active manganese compounds of valence state +2
US5308711A · kind A · utility
53Cited by
7References
57Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1993 |
| Grant date | May 3, 1994 |
| Priority date | — |
| Expiry date | Feb 9, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M12/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An air cathode for a metal-air cell and methods for making it are provided. In the air cathode of the present invention, manganese compounds of valence state +2 act as catalysts for the reduction of oxygen, and are distributed substantially evenly throughout a carbon matrix. Manganese compounds of valence state +2 form between carbon particles after the carbon particles are added to an aqueous solution of potassium permanganate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.