发明名称 |
ELECTRODE USED IN ELECTROCHEMICAL REACTION AND FUEL CELL USING THE SAME |
摘要 |
An electrode includes a porous catalyst layer having a thickness of about 0.1 mm and a porous diffusion layer having a thickness of about 1.6 mm. The catalyst layer includes a large number of agglomerate portions and a large number of gap portions which are alternately and almost parallelly arranged in a stripe-like manner. The agglomerate portion has a porous body having a porosity of 50% or more and consisting of fine carbon powder particles on which an alloy catalyst containing platinum as a main component is dispersed and carried, and an aqueous phosphoric acid solution serving as an electrolyte held in the pores of the porous body. The gap portion is formed of a large number of water-repellent PTFE fibers having a porosity of 20% or more to connect the agglomerate portions, thereby providing an electrode of a fuel cell having a higher output density than a conventional case with the same amount of catalyst. |
申请公布号 |
CA2139167(C) |
申请公布日期 |
1997.12.02 |
申请号 |
CA19942139167 |
申请日期 |
1994.12.28 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
YAMASHITA, KEIJIRO;SUZUKI, NOBUKAZU |
分类号 |
H01M4/92;H01M4/96;H01M8/08;H01M8/10 |
主分类号 |
H01M4/92 |
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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