发明名称 |
Separator for low-temperature type fuel cell and production method therefor |
摘要 |
A stainless steel sheet useful as a separator for a low-temperature fuel cell has the surface state that a lot of fine projections (p) stand close together around many fine pits (d) formed over a whole surface. The surface state is realized by alternating electrolytic etching in a ferric chloride solution. When the stainless steel separator is built in a fuel cell, contact resistance between the separator and a graphite electrode is kept at a lower level even in a corrosive atmosphere. Consequently, the fuel cell can be driven with high power-generating efficiency over a long term even under severely corrosive conditions without generation of massive Joule heat. |
申请公布号 |
US7879508(B2) |
申请公布日期 |
2011.02.01 |
申请号 |
US20090353644 |
申请日期 |
2009.01.14 |
申请人 |
NISSHIN STEEL CO., LTD. |
发明人 |
MIYANO TSUTOMU;SHIMIZU TAKESHI;IZUMI KEIJI;MORITA YOSHIKAZU;KAMOSHIDA SHINICHI;KINGETSU TOSHIKI |
分类号 |
H01M8/04;H01M8/02;H01M8/24 |
主分类号 |
H01M8/04 |
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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