Polymer electrolyte membrane, method of manufacturing the...

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Fuel cell with solid electrolyte

Reexamination Certificate

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C429S523000, C429S530000, C427S115000

Reexamination Certificate

active

07923167

ABSTRACT:
A polymer electrolyte membrane including an ionic conducting polymer and a light-irradiated product of a photoacid generator (PAG), a method of manufacturing the same, and a fuel cell using the same. The polymer electrolyte membrane has excellent proton conductivity and homogeneity by radiating light such as UV light onto the PAG, thereby producing an acid radical which generates an acid. The polymer electrolyte membrane also suppresses methanol crossover well. The polymer electrolyte membrane can be used as an electrolyte membrane of a fuel cell, for example, a direct methanol fuel cell.

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patent: 2002/0058425 (2002-05-01), Richter et al.
patent: 2005/0282919 (2005-12-01), Cao et al.
patent: 2001-222910 (2001-08-01), None
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Patent Abstracts of Japan, Publication No. 2004-349034, dated Dec. 9, 2004.
SIPO Office action dated Feb. 12, 2010, for corresponding Chinese application 200610139995.5, noting U.S. references previously cited in Office actions dated Jul. 2, 2009 and Jan. 7, 2010.
JPO Office action dated May 11, 2010, for corresponding Japanese Application No. 2006-272080, listing the cited reference in this IDS as well as JP 2004-349034 previously filed in an IDS dated Jan. 8, 2007.
SIPO Office action dated Aug. 4, 2010, for corresponding Chinese Patent application 200610139995.5, with English translation.

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