Fuel cell stack presenting reinforced structure
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United States of America Patent
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Sep 22, 2020
Grant Date -
Feb 15, 2018
app pub date -
Mar 8, 2016
filing date -
Mar 9, 2015
priority date (Note) -
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Abstract
A bipolar plate (20) for making a proton-exchange membrane fuel cell stack, said bipolar plate (20) being made up of metal sheets that are shaped and assembled together in such a manner as to define primary fluid-flow channels (24) and secondary fluid-flow channels (25) that are arranged in alternation, said primary channels (24) being formed between said assembled-together sheets; the bipolar plate (20) being characterized in that it includes mechanical reinforcement (35) made out of metal material arranged in a reinforcing duct (30) of the bipolar plate (20), said metal reinforcement (35) being configured in such a manner as to oppose a compression force applied to the bipolar plate (20), said bipolar plate (20) further including a source of electricity adapted to feed electric current to the mechanical reinforcement (35) and thereby give off heat by the Joule effect.
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