发明名称 |
POROUS ELECTRODE SUBSTRATE, METHOD FOR MANUFACTURING SAME, MEMBRANE-ELECTRODE ASSEMBLY, AND SOLID POLYMER FUEL CELL |
摘要 |
A method for manufacturing a porous electrode substrate, comprising: step (1) of dispersing the pieces of a short carbon fiber (A) and a fiber (b) containing a polymer having a softening point of 250° or higher but lower than 400° C. and a particulate substance having a melting point of 400° C. or higher, in a planar direction, and thereby obtaining a precursor sheet; step (2) of impregnating the precursor sheet with a carbon powder (C2) containing powdered carbon, and a fluorine-based resin containing elemental fluorine and a resin component; and step (3) of heat treating the impregnated precursor sheet at a temperature of 250° C. or higher but lower than 400° C. in the presence of oxygen. |
申请公布号 |
US2015155568(A1) |
申请公布日期 |
2015.06.04 |
申请号 |
US201314414211 |
申请日期 |
2013.07.18 |
申请人 |
Mitsubishi Rayon Co., Ltd. |
发明人 |
Sumioka Kazuhiro |
分类号 |
H01M4/86;H01M4/88;H01M8/10 |
主分类号 |
H01M4/86 |
代理机构 |
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代理人 |
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主权项 |
1. A method for manufacturing a porous electrode substrate, the method comprising:
step (1) of dispersing the pieces of a short carbon fiber (A) and a fiber (b) containing a polymer having a softening point of 250° or higher but lower than 400° C. and a particulate substance having a melting point of 400° C. or higher, in a planar direction, and thereby obtaining a precursor sheet; step (2) of impregnating the precursor sheet with a carbon powder (C2) containing powdered carbon, and a fluorine-based resin containing elemental fluorine and a resin component; and step (3) of heat treating the impregnated precursor sheet at a temperature of 250° C. or higher but lower than 400° C. in the presence of oxygen. |
地址 |
Tokyo JP |