发明名称 |
POROUS ELECTRODE SUBSTRATE, METHOD FOR PRODUCING THE SAME, MEMBRANE ELECTRODE ASSEMBLY, AND POLYMER ELECTROLYTE FUEL CELL |
摘要 |
Provided is a porous electrode substrate having high mechanical strength, good handling properties, high thickness precision, little undulation, and adequate gas permeability and conductivity. Also provided is a method for producing a porous electrode substrate at low costs. A porous electrode substrate is produced by joining short carbon fibers (A) via mesh-like of carbon fibers (B) having an average diameter of 4 μm or smaller. Further provided are a membrane-electrode assembly and a polymer electrolyte fuel cell that use this porous electrode membrane. A porous electrode substrate is obtained by subjecting a precursor sheet, in which short carbon fibers (A) and short carbon fiber precursors (b) having an average diameter of 5 μm or smaller have been dispersed, to carbonization treatment after optional hot press forming and optional oxidization treatment.
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申请公布号 |
US2011294036(A1) |
申请公布日期 |
2011.12.01 |
申请号 |
US201013147814 |
申请日期 |
2010.02.02 |
申请人 |
MITSUBISHI RAYON CO., LTD. |
发明人 |
SUMIOKA KAZUHIRO;SAKO YOSHIHIRO |
分类号 |
H01M4/96;H01M8/00;H01M8/10 |
主分类号 |
H01M4/96 |
代理机构 |
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