发明名称 |
METALLIC BIPOLAR PLATE FOR FUEL CELLS, AND FUEL CELL COMPRISING THE SAME |
摘要 |
The present invention relates to a metallic bipolar plate for fuel cells, including: a plate-like metallic substrate containing a metal capable of being passivated; and a noble-metal layer disposed partially on both surfaces of the metallic substrate to coat the metallic substrate, the metallic bipolar plate having a concave-convex porti on formed at least in a region facing an electrode of a membrane electrode assembly, in which both surfaces of the metallic bipolar plate respectively have a contact surface which contacts with the electrode and a non-contact surface which does not contact with the electrode, and in which both surfaces of the metallic bipolar plate respectively have a coating area ratio of the noble-metal layer to the contact surface within a range of from 20% to 100%, and a coating area ratio of the noble-metal layer to the non-contact surface within a range of from 5% or more but less than 100%. |
申请公布号 |
CA2596198(A1) |
申请公布日期 |
2008.02.09 |
申请号 |
CA20072596198 |
申请日期 |
2007.08.07 |
申请人 |
DAIDO TOKUSHUKO KABUSHIKI KAISHA |
发明人 |
HISADA, TATSUO;TAKAGI, SHINOBU;HUTO, MASAYOSHI |
分类号 |
H01M4/86;C23C30/00;C23F11/00;H01M8/02 |
主分类号 |
H01M4/86 |
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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