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AssigneesNisshin Steel Co., Ltd., Toyota Jidosha Kabushiki Kaisha
InventorsYoshikazu Morita, Shinichi Kamoshida, Takeshi Shimizu, Tsutomu Miyano, Keiji Izumi, Yuichi Yagami, Tsuyoshi Takahashi, Yoshiaki Kajikawa, Kouta Kodama
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A stainless steel separator, which is good of corrosion-resistance and low of contact-resistance, is proposed for a fuel cell. Its surface faced to a fuel electrode is pickled, which the other surface faced to an oxidizing electrode is roughened by electrolytic etching or the like. The roughening treatment may be performed before or after pickling and passivation. The roughened surface of the stainless steel separator without pickling or passivation may be faced to the oxidizing electrode.
A stainless steel separator for a low-temperature fuel cell, which is made from a stainless steel sheet having surfaces, one of which faced to a fuel electrode is pickled and the other of which faced to an oxidizing electrode is roughened.
Dependencies are inferred from the claim text.