Proton conducting membranes for high temperature fuel cells...

Details Proton conducting membranes for high temperature fuel cells... Proton conducting membranes for high temperature fuel cells...

2006-09-19

2006-09-19

Ryan, Patrick Joseph (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000, C204S295000

Reexamination Certificate

active

07108934

ABSTRACT:
A “water free,” proton conducting membrane for use in a fuel cell is fabricated as a highly conducting sheet of converted solid state organic amine salt, such as converted acid salt of triethylenediamine with two quaternized tertiary nitrogen atoms, combined with a nanoparticulate oxide and a stable binder combined with the converted solid state organic amine salt to form a polymeric electrolyte membrane. In one embodiment the membrane is derived from triethylenediamine sulfate, hydrogen phosphate or trifiate, an oxoanion with at least one ionizable hydrogen, organic tertiary amine bisulfate, polymeric quaternized amine bisulfate or phosphate, or polymeric organic compounds with quaternizable nitrogen combined with Nafion to form an intimate network with ionic interactions.

REFERENCES:
patent: 4376030 (1983-03-01), Ezzell et al.
patent: 6465136 (2002-10-01), Fenton et al.
patent: 6841285 (2005-01-01), Wilkinson et al.

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