Air cathode and metal-air battery
US8518583B2 · kind B2 · utility
13Cited by
1References
4Claims
0Family size
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Inventors
Key dates
| Filing date | Sep 18, 2009 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Sep 18, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M2004/8689
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A main object of the present invention is to provide an air cathode capable of achieving both high initial discharge capacity and high capacity retention. In the present invention, the problem is solved by providing an air cathode used in a metal-air battery, comprising: an air cathode layer containing a conductive material, a particulate catalyst and a fibrous catalyst; and an air cathode current collector for collecting current of the air cathode layer, wherein the ratio of the fibrous catalyst to the total weight of the particulate catalyst and the fibrous catalyst is 10% by weight or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.