Patent ID: 8951697
Filing Date: 2015-02-10
Classification: B82Y,H01M,Y02E,Y10S

Abstract:
1. A membrane electrode assembly comprising: a proton exchange membrane comprising a first surface and a second surface; a first electrode, located on the first surface, comprising a first catalyst layer and a first diffusion layer in contact with each other, wherein the first catalyst layer is located between the first surface and the first diffusion layer; and a second electrode, located on the second surface, comprising a second catalyst layer and a second diffusion layer in contact with each other, wherein the second catalyst layer is located between the second surface and the second diffusion layer; wherein at least one of the first diffusion layer and the second diffusion layer comprises a carbon nanotube structure comprising at least one drawn carbon nanotube film, the at least one drawn carbon nanotube film comprises a plurality of carbon nanotube segments successively oriented along a fixed direction, and joined end-to-end by van der Waals attractive force therebetween along the fixed direction, wherein each carbon nanotube segment comprises a plurality of carbon nanotubes parallel to each other and combined by van der Waals attractive force therebetween, and the carbon nanotubes of the at least one drawn carbon nanotube film are oriented along the fixed direction.