Patent ID: 9397349
Filing Date: 2016-07-19
CPC Classification: H01M,Y02E,Y02T

Claim Text:
1. A fuel cell comprising: a membrane-electrode assembly in which electrode catalyst layers are formed on two surfaces of an electrolyte membrane; and a gas diffusion layer that is provided at an outer side of at least one of the electrode catalyst layers, is made of an electroconductive porous member, and includes a cerium-containing layer, wherein the cerium-containing layer is formed on at least one of the electrode catalyst layers and contains cerium-containing oxide particles, carbon particles and water-repellent material particles, an amount of the cerium-containing oxide particles is greater than 5 wt % and less than or equal to 30 wt % where 100 wt % is an amount of solid components except the cerium-containing oxide particles which form the cerium-containing layer, the cerium-containing oxide particles have a higher hydrophilicity than the electrolyte membrane, and the cerium-containing oxide particles have a specific surface area of 50 m