发明名称 |
POLYMER ELECTROLYTE MEMBRANE, AND MEMBRANE ELECTRODE ASSEMBLY AND POLYMER ELECTROLYTE FUEL CELL USING THE SAME |
摘要 |
Disclosed is a fuel cell in which a membrane electrode assembly less undergoes increase in ion conduction resistance, and a polymer electrolyte membrane less undergoes deterioration. Specifically, the polymer electrolyte membrane includes a first membrane and a second membrane being two different membranes composed of polymer electrolytes having different ion-exchange capacities, in which the first membrane has an area of one surface thereof equal to or larger than an area of one surface of an anode or a cathode, and the second membrane has an area of one surface thereof smaller than that of the first membrane and is arranged in a gas inflow region on a side being in contact with the cathode. The second membrane has an ion-exchange capacity smaller than that of the first membrane or has a number-average molecular weight larger than that of the first membrane.
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申请公布号 |
US2012107721(A1) |
申请公布日期 |
2012.05.03 |
申请号 |
US201113286253 |
申请日期 |
2011.11.01 |
申请人 |
ONUMA ATSUHIKO;KAWAJI JUN;SUZUKI SHUICHI;TAKAMORI YOSHIYUKI;HITACHI, LTD. |
发明人 |
ONUMA ATSUHIKO;KAWAJI JUN;SUZUKI SHUICHI;TAKAMORI YOSHIYUKI |
分类号 |
H01M8/10 |
主分类号 |
H01M8/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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