Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2004-05-11
2010-11-02
Michener, Jennifer (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C429S047000
Reexamination Certificate
active
07824786
ABSTRACT:
A polymer electrolytic material has excellent proton conductivity and excellent fuel shutting property, and accordingly provide a polymer electrolytic fuel cell with a high efficiency. This polymer electrolytic material has an unfreezable water ratio Rw1defined by the following expression (S1) in a range of 20 to 100% by weight in hydrated state:in-line-formulae description="In-line Formulae" end="lead"?Rw1=[Wnf/(Wfc+Wnf)]×100 (S1)in-line-formulae description="In-line Formulae" end="tail"?in which Wnf represents the unfreezable water content per 1 g of the polymer electrolytic material in dry state and Wfc represents the low freezing point water content per 1 g of the polymer electrolytic material in dry state.
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Fukunaga, Hiroshi et al. “Anode Structure and Overpotential of Gas Feed Direct Methanol Fuel Cell,”The Electrochemical Society of Japan, Summaries of the 69thLectures: p. 76.
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Kidai Masayuki
Kono Shunji
Uete Takao
Michener Jennifer
Morrison & Foerster / LLP
Toray Industries Inc.
Wills Monique
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