Fuel cell including a cathode comprising a sub phase composed of tricobalt tetroxide
US8956781B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Sep 13, 2012 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | May 10, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel cell includes an anode, a cathode and a solid electrolyte layer. The cathode has a main phase and a sub phase. The main phase is composed of a perovskite type oxide including cobalt. The sub phase is composed of tricobalt tetroxide. The solid electrolyte layer is disposed between the anode and the cathode. An area occupancy of the sub phase in a sectional surface of the cathode is equal to or less than 9.8%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.