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http://dx.doi.org/10.5229/JKES.2003.6.1.036

A Study on the Effect of Water Freezing on the Characteristics of Polymer Electrolyte Membrane Fuel Cells  

Ko, Jae-Joon (Department of Chemical and Biological Engineering, Korea University)
Cho, Eun-Ae (Fuel Cell Research Center, Korea Institute of Science and Technology)
Ha, Heung-Yong (Fuel Cell Research Center, Korea Institute of Science and Technology)
Hong, Seong-Ahn (Fuel Cell Research Center, Korea Institute of Science and Technology)
Lee, Kwan-Young (Department of Chemical and Biological Engineering, Korea University)
Lim, Tae-Won (Fuel Cell Vehicle Team, Hyundai Motor Company)
Oh, In-Hwan (Fuel Cell Research Center, Korea Institute of Science and Technology)
Publication Information
Journal of the Korean Electrochemical Society / v.6, no.1, 2003 , pp. 36-40 More about this Journal
Abstract
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 degree was examined with the thermal cycles from 80 to $-10^{\circ}C$. 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 PEMFC on the electrode structure and polarization resistance were examined by BET analysis, cyclic voltammetry, and AC impedance spectroscopy.
Keywords
Fuel cell; PEMFC (polymer electrolyte membrane fuel cell); Freezing of water; Electric vehicle (EV);
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