Patent ID: 7390588

Claim:
A fuel cell, comprising: a first substrate having a first gas flow path formed therein that supplies a first reactive gas, the first gas flow path having a trapezoidal shape; a first collector layer formed on the first substrate side thereof; a first gas diffusion layer formed on the first substrate side thereof; a first reactive layer formed on the first substrate side thereof; a second substrate having a second gas flow path formed therein that supplies a second reactive gas; a second collector layer formed on the second substrate side thereof; a second gas diffusion layer formed on the second substrate side thereof; a second reactive layer formed on the second substrate side thereof; and an electrolyte membrane formed interposed between the first reactive layer and the second reactive layer, a width of an opening of at least one of the first gas flow path and the second gas flow path being smaller than a particle diameter of material constituting the first gas diffusion layer and the second gas diffusion layer.