Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2005-11-30
2009-10-06
Woodward, Ana L (Department: 1796)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C429S047000, C429S188000, C429S304000, C429S306000, C429S309000, C429S314000, C429S315000, C429S316000, C429S317000, C210S500100, C210S500270
Reexamination Certificate
active
07597981
ABSTRACT:
The present invention relates to a composite electrolyte membrane for fuel cells that has high proton conductivity and low fuel permeability even under low humidity conditions and at elevated temperatures. The membrane, comprising a cation exchange resin and acid-treated dendrimers, has great utility in large and medium fuel cells for applications in household appliances, electric vehicles, etc.
REFERENCES:
patent: 7195835 (2007-03-01), Colombo et al.
Kim Min Sung
Kim Young Taek
Lee Jong Hyun
Rhee Hee Woo
Shin Hwan Soo
Hyundai Motor Company
Morgan & Lewis & Bockius, LLP
Woodward Ana L
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