Hydrophilic polymers and their use in electrochemical cells

Details Hydrophilic polymers and their use in electrochemical cells Hydrophilic polymers and their use in electrochemical cells

2008-01-15

2008-01-15

Ryan, Patrick Joseph (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C204S001001, C427S115000

Reexamination Certificate

active

07318972

ABSTRACT:
A hydrophilic cross-linked polymer obtainable by copolymerization of hydrophobic and hydrophilic monomers that give a cross-linked hydrophilic polymer on polymerization; a monomer including a strongly ionic group; and water is useful as the membrane in an assembly that can be used in an electrolyter or fuel cell.More generally, a membrane electrode assembly comprises electrodes and an ion-exchange membrane which comprises a hydrophilic polymer including a strongly ionic group.A method for producing a membrane electrode assembly comprising electrodes and an ion-exchange membrane, comprises introducing between the electrodes a material or materials from which the membrane can be formed, and forming the membrane in situ.

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