Fuel cell electrode catalyst, method for selecting the same, and fuel cell including the same
US11715833B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Mar 8, 2022 |
| Grant date | Aug 1, 2023 |
| Priority date | — |
| Expiry date | Mar 8, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel cell electrode catalyst includes catalyst metal particles and electrically conductive support particles supporting the catalyst metal particles. In the fuel cell electrode catalyst, a proportion of a surface area occupied by the catalyst metal particles with particle sizes of 4.5 nm or less to a surface area of the catalyst metal particles calculated from a transmission electron microscope image is 5% or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.