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    • 8. 发明专利
    • Fuel cell
    • JP3524807B2
    • 2004-05-10
    • JP8926699
    • 1999-03-30
    • 三洋電機株式会社
    • 泰夫 三宅保則 吉本光雄 唐金耕司 安尾晃治 西尾
    • H01M8/02H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide a fuel cell, capable of satisfactorily keeping drainability of water in a supply passage over long periods, having high power generation efficiency and reliability by arranging a dense material having a hydrophilic surface, at least in one of the supply passage of fuel or an oxidizing agent. SOLUTION: A dense material 500, having a hydrophilic surface arranged in an anode side channel 300, is fixed between a frame body 20 and the anode side channel 300 by projecting parts 550, 550 arranged on a back face of the frame body 20 between through-holes 202 and 204 and between 206 and 208. A width of these projecting parts 550 is set not more than about half of the width of the anode side channel 300, so as not to hinder a flow of fuel. Moisture in a gas-liquid mixture flowing in the anode side channel 300 flows by flowing along the hydrophilic surface of the dense material 500 by arranging the dense material 500, and does not hinder a flow of the fuel. Since the dense material 500 becomes strong in sticking force, even if a fuel cell is operated for many hours, a hydrophilic material and a coating film hardly separate, to satisfactorily keep drainability of water in a supply passage.