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AssigneesMitsubishi Materials Corporation, NEC Corporation
InventorsEiko Kanda, Masahiro Wada, Komei Kato, Tsutomu Yoshitake, Hidekazu Kimura, Suguru Watanabe
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A fuel cell includes electrode sheets composed of an electrically conductive porous body composed by a sheet member having a framework having a three-dimensional mesh structure containing pores, a catalyst layer formed on one side thereof, and a resin portion integrally formed on an outer peripheral edge; the electrically conductive porous body has a current collection portion formed in a portion thereof having a laminated structure consisting of a plurality of sheet members, and the pores in each sheet member of the current collection portion are formed to be pressed flatter than the pores of other portions; a resin penetrates into pores within the electrically conductive porous body at bound portions of the resin portion and the electrically conductive porous body; and, among a plurality of unit cells A and B, at least a portion thereof are connected in series by means of an electrically conductive member that passes through an electrolyte membrane from the current collection portion of the electrically conductive porous body.
A fuel cell provided with a solid polymer electrolyte membrane and electrode sheets layered on both sides of the electrolyte membrane;
The fuel cell according to 1, wherein the porosity of the current collection portion is 40% to less than 60%, while the porosity of other portions is 60% to 98%.
Dependencies are inferred from the claim text.