Proton exchange composite membranes, composite solutions, and method for manufacturing and fuel cell using the same
US7029559B2 · kind B2 · utility
21Cited by
7References
16Claims
0Family size
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Key dates
| Filing date | Aug 27, 2002 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Mar 28, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An ion exchange composition membrane is made up of dispersed natural clay and/or organized clay in ion conducting polymeric film as a methanol barrier material. The membrane exhibits low methanol crossover, high proton conductivity and is thus suitable for use in direct methanol fuel cells with low costal advantage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.