Porous material for fuel cell electrolyte membrane, method for producing the same, electrolyte membrane for solid polymer fuel cell, membrane electrode assembly (MEA), and fuel cell
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United States of America Patent
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Jun 30, 2015
Grant Date -
Mar 1, 2012
app pub date -
Nov 8, 2011
filing date -
Apr 19, 2006
priority date (Note) -
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Abstract
According to the present invention, a porous material for a fuel cell electrolyte membrane, wherein at least one strength auxiliary layer is provided inside and/or on the surface of a high porosity layer, the high porosity layer and the strength auxiliary layer constitute a multilayer structure, and the average diameter of pores of the high porosity layer is different from the average diameter of pores of the strength auxiliary layer, is provided. Also, a porous material having high porosity and high strength, which is suitable as a base material for an electrolyte membrane of a solid polymer fuel cell, is provided and a high-performance fuel cell using such material is realized.
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