Method of manufacturing electrolyte membrane for fuel cells and method of manufacturing membrane-electrode assembly including the same
US10862135B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Sep 7, 2018 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Nov 21, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a method of manufacturing an electrolyte membrane for fuel cells by transferring antioxidants to the electrolyte membrane. The method may include providing a first membrane including a perfluorinated sulfonic acid-based compound, providing a second membrane including an antioxidant such that the second membrane partially or entirely contacts a surface of the first membrane, transferring or moving the antioxidant of the second membrane to the first membrane, and removing the second membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.