发明名称 |
Separator für Brennstoffzellenbatterie und Verfahren zu dessen Herstellung |
摘要 |
In a separator for a fuel cell and a method of producing a separator for a fuel cell according to the invention, bond-carbon is used in which composition ratios are set to 60 to 90 wt.% (preferably, 70 to 87 wt.%) of graphite powder having an average diameter in a range of 15 to 125 µm (preferably, 40 to 100 µm), and 10 to 40 wt.% (preferably, 13 to 30 wt.%) of a thermosetting resin. The compound is previously cold-molded into a shape similar to a final molded shape. The preliminary molded member is then placed in a mold, and then molded into a separator of the final shape by applying a pressure of a range of 10 to 100 MPa. The surface roughness Ra of at least a portion of the separator contacting with an electrode is set to a range of 0.1 to 0.5 µm. According to this configuration, fluidity and moldability are excellent, the contact resistance can be set to a value lower than a requested value while ensuring strength sufficient for preventing the separator from suffering a damage such as a breakage due to vibrations or the like, and the low contact resistance can be stably maintained. |
申请公布号 |
DE60041045(D1) |
申请公布日期 |
2009.01.22 |
申请号 |
DE2000641045 |
申请日期 |
2000.09.13 |
申请人 |
NIPPON PILLAR PACKING CO. LTD. |
发明人 |
YOSHIDA, TSUNEMORI;SUGITA, KATSUNORI;YAMAMOTO, TERUMASA;KAJI, MASAHITO |
分类号 |
H01M8/02;B29C43/00;H01M8/10 |
主分类号 |
H01M8/02 |
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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