RESIN-FRAMED MEMBRANE ELECTRODE ASSEMBLY
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United States of America Patent
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Issued Date -
Jul 2, 2015
app pub date -
Dec 25, 2014
filing date -
Dec 26, 2013
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Abstract
A resin-framed membrane electrode assembly includes a membrane electrode assembly, a resin frame, and a clearance. The membrane electrode assembly includes an electrolyte membrane, a first electrode, a second electrode, and a step. The first electrode is located on a first surface of the electrolyte membrane and includes a first catalyst layer and a first diffusion layer which are stacked on the first surface in a stacking direction. The resin frame is disposed outside the membrane electrode assembly. The clearance is provided between the resin frame and an outer edge surface of the first diffusion layer to be filled with a filler such that the filler reaches a level higher than a lower one of a height of the first diffusion layer or a height of the resin frame in cross section in the stacking direction.
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