Fuel cell
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United States of America Patent
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Apr 12, 2016
Grant Date -
Jun 21, 2012
app pub date -
Jan 20, 2012
filing date -
Jul 21, 2009
priority date (Note) -
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Abstract
In one embodiment, in a fuel cell, a first electrode supplied with an oxidant gas includes a first gas diffusion layer having a first porous base material and a first catalyst layer having a second porous base material. The first catalyst layer is stacked to the first gas diffusion layer. The second porous base material has a pore diameter distribution with a peak in a range of 0.04 μm to 0.12 μm, and a volume ratio of pores with diameters of 0.04 μm to 0.12 μm to all the pores being 17% or more. A second electrode supplied with a fuel includes a second gas diffusion layer having a third porous base material and a second catalyst layer having a fourth porous base material. The second catalyst layer is stacked to the second gas diffusion layer. An electrolyte film is held between the first and second catalyst layers.
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