Proton-conducting inorganic particles, method for the preparation thereof, and use thereof to form a fuel cell membrane
US11180620B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 24, 2018 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | May 26, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to inorganic particles which are covalently bonded to first polymer chains made up of at least one polymer carrying proton exchange groups, optionally in the form of salts, and bonded to second polymer chains made up of at least one fluorinated polymer that does not carry any proton exchange groups, the second chains being bonded to the particles via organic spacer groups, or the second chains being bonded to first chains via organic spacer groups, or some of the second chains being bonded to the particles via organic spacer groups while the remaining second chains are bonded to first chains via organic spacer groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.