Method of forming membrane electrode assemblies for electrochemical devices
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United States of America Patent
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Nov 19, 2013
Grant Date -
Jul 31, 2008
app pub date -
Jan 30, 2007
filing date -
Jan 31, 2006
priority date (Note) -
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Abstract
A method of forming a membrane electrode assembly (MEA) includes first bonding a first electrode layer to a first side of an ion-exchange membrane. The method may further include protecting a second side of the membrane with a release sheet. The method may further include removing the release sheet and bonding the second side of the membrane to a first side of a second electrode layer. The method may further include positioning venting members on a second side of the second electrode layer to remove at least one of a liquid and a vapor that may be generated during the bonding process. In another embodiment an electrocatalyst can first bond to at least one side of the membrane, and subsequently, to a gas diffusion layer. An opposing side of the membrane can bond to an electrode layer in aqueous state.
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