Fuel cell
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United States of America Patent
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Dec 16, 2014
Issued Date -
N/A
app pub date -
Oct 17, 2012
filing date -
Oct 20, 2011
priority date (Note) -
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Abstract
A fuel cell includes a membrane electrode assembly, a first separator, and a second separator. The membrane electrode assembly includes a solid polymer electrolyte membrane, a first electrode, a second electrode, and a resin frame member. The membrane electrode assembly includes a power generation section and a stepped section. The power generation section is located in an interior space of the resin frame member. The solid polymer electrolyte membrane is provided between the first electrode and the second electrode in the power generation section. The stepped section is located on an outer side of the first electrode. The solid polymer electrolyte membrane is provided between the second electrode and the resin frame member in the stepped section. A magnitude of an interference in the stepped section is set to be smaller than a magnitude of an interference in the power generation section.
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