发明名称 |
SEPARATOR FOR FUEL CELL, FUEL CELL INCORPORATING THE SAME, AND METHOD OF PRODUCTION OF THE SAME |
摘要 |
An inexpensive and corrosion resistant metal-made gas separator includes a base formed by joining formed stainless steel base sheets face to face. The base carries on each of opposite surfaces thereof a first coating layer formed by plating with tin. The base is also coated with a second coating layer of a thermal expansion graphite. When incorporated into a fuel cell, the separator contacts gas diffusion electrodes that are formed from a carbon material similar to the carbon material of the second coating layer, so that the contact resistance is reduced. The first coating layer is formed after a passive state coating is removed from the stainless steel surface, so that an increase in the internal resistance of the separator caused by the passive state coating is substantially prevented. |
申请公布号 |
CA2270860(A1) |
申请公布日期 |
1999.11.07 |
申请号 |
CA19992270860 |
申请日期 |
1999.05.04 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
YOSHIMURA, JOJI;YAMANE, KEIJI;NONOBE, YASUHIRO |
分类号 |
C23C28/00;H01M8/02;H01M8/10 |
主分类号 |
C23C28/00 |
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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