申请人:Fukuda Kaoru
公开号:US20050227138A1
公开(公告)日:2005-10-13
A polymer electrolyte fuel cell consists of plural units, and the unit has an anode side separator, an anode diffusion layer, an anode catalytic layer, polymer electrolyte membrane, a cathode catalytic layer, a cathode diffusion layer, and a cathode side separator. The cathode catalytic layer further includes a catalyst in which platinum or platinum alloy is supported on a carbon supporting body having an average lattice space d002 of [002] surface of 0.338 to 0.355 nm and specific surface area of the supporting body of 80 to 250 m
2
/g, electrolyte containing ion exchange resin, and vapor grown carbon fiber. Furthermore, a water holding layer containing ion exchange resin, carbon particles, and vapor grown carbon fiber is arranged at an interface of the cathode diffusion layer and the cathode catalytic layer.
聚合物电解质燃料电池由多个单元组成,单元包括阳极侧隔板、阳极扩散层、阳极催化层、聚合物电解质膜、阴极催化层、阴极扩散层和阴极侧隔板。阴极催化层还包括催化剂,铂或铂合金支持在具有平均晶格间距d002的碳载体上,[002]表面为0.338至0.355纳米,支撑体的比表面积为80至250 m2/g,电解质含有离子交换树脂和蒸汽生长碳纤维。此外,在阴极扩散层和阴极催化层的界面上排列了一个含有离子交换树脂、碳颗粒和蒸汽生长碳纤维的保水层。