Characteristics of the PEMFC repetitively brought to temperatures below 0 degrees C

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Freezing of water in a polymer electrolyte membrane fuel cell (PEMFC) may cause severe problems in driving a fuel cell vehicle during the winter time. Characteristics of PEMFC which suffered low temperatures below zero celsius were examined with thermal cycles during which the temperature of the environment chamber was cycled from 80 to -10 degreesC. With the thermal cycles, the cell performance was degraded due to the phase transformation and volume changes of water. Effects of freezing of water in a PEMFC on the electrode structure and polarization resistance were examined by Brunauer, Emmett, Teller analysis, cyclic voltammetry, and ac impedance spectroscopy.
Publisher
ELECTROCHEMICAL SOC INC
Issue Date
2003-12
Language
English
Article Type
Article
Keywords

ELECTROLYTE FUEL-CELLS; PLATINUM

Citation

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.150, no.12, pp.A1667 - A1670

ISSN
0013-4651
DOI
10.1149/1.1621877
URI
http://hdl.handle.net/10203/192921
Appears in Collection
MS-Journal Papers(저널논문)
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