发明名称 |
Titanium-based material for fuel cell separators and a method for the production thereof |
摘要 |
A separator material effective for decreasing the weight of fuel cells is provided which is lightweight, has good corrosion resistance, and exhibits a minimized increase in electrical contact resistance during use for a long period. Titanium or a titanium alloy is prepared by melting so as to contain not greater than 5 mass % B, thereby forming a titanium-based material in which fine TiB-type boride particles are precipitated and dispersed. The material is then etched in an aqueous acidic solution such that some of the TiB-type boride particles are exposed on the surface through the passive film formed thereon.
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申请公布号 |
US2007259221(A1) |
申请公布日期 |
2007.11.08 |
申请号 |
US20070710555 |
申请日期 |
2007.02.26 |
申请人 |
TARUTANI YOSHIO;SEKI AKIRA;MAEDA TAKASHI;TAKAHASHI WATARU;DOI TAKASHI |
发明人 |
TARUTANI YOSHIO;SEKI AKIRA;MAEDA TAKASHI;TAKAHASHI WATARU;DOI TAKASHI |
分类号 |
H01M8/00;C01B35/04;C22C14/00;C23F1/00 |
主分类号 |
H01M8/00 |
代理机构 |
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地址 |
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