Solid polymer type fuel cell catalyst, solid polymer type...

H - Electricity – 01 – M

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H01M 4/96 (2006.01) H01M 4/86 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2739306

The present invention has as its object the provision of a solid polymer fuel cell catalyst exhibiting high durability and high power generation performance regardless of the humidification conditions or load conditions. The present invention relates to a solid polymer type fuel cell catalyst which is comprised of a carbon material which carries a catalyst ingredient, wherein the amount of adsorption of water vapor (V10) at 25°C and a relative humidity of 10% of the carbon material is 2 ml/g or less and the amount of adsorption of water vapor (V90) at 25°C and a relative humidity of 90% of the carbon material is 400 ml/g or more.

La présente invention a trait à un catalyseur pour piles à combustible à polymère solide qui présente une durabilité élevée et des performances élevées de production dénergie électrique quelles que soient les conditions dhumidification ou les conditions de charge. La présente invention a particulièrement trait à un catalyseur pour piles à combustible à polymère solide, un composant du catalyseur étant supporté par un matériau de carbone. Le matériau de carbone présente une adsorption de vapeur deau à une humidité relative de 10 % à 25 °C (V10) inférieure ou égale à 2 ml/g, et une adsorption de vapeur deau à une humidité relative de 90 % à 25 °C (V90) supérieure ou égale à 400 ml/g.

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