Polymer electrolyte membrane and method of making

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation

Reexamination Certificate

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C521S027000

Reexamination Certificate

active

10697831

ABSTRACT:
Polymer electrolyte membranes such as are used in fuel cells are provided along with methods of their manufacture. The polymer electrolyte membranes comprise polymers or blends of polymers having an equivalent weight of less than 1200 and a Tg of between 101° C. and 155° C.

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