High temperature proton exchange membrane using ionomer/solid proton conductor, preparation method thereof and fuel cell containing the same
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United States of America Patent
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Jul 12, 2011
Grant Date -
Feb 1, 2007
app pub date -
Nov 26, 2003
filing date -
Jul 14, 2003
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Abstract
The present invention relates to a high temperature proton-conducting polymer membrane, a preparation method thereof, a membrane-electrode assembly using the same and a fuel cell containing the same. More particularly, it relates to a proton-conducting polymer membrane enabling fuel cell operation under high temperature and normal pressure condition, wherein sulfoalkyl or sulfoaryl groups are introduced between layers of metal phosphate and cation exchange groups are present in side chains, a preparation method thereof and a membrane-electrode assembly using the proton exchange membrane and a fuel cell containing the same.
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