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ACTIVE LAYER OF FUEL CELL CATHODE WITH POLYMER ELECTROLYTE: COMPUTER SIMULATION PROCESS OF MOISTURE EXCHANGE IN SUPPORT GRAINS
https://doi.org/10.15518/isjaee.2016.01-02.008
Abstract
In the cathode active layer of a fuel cell with a solid polymer electrolyte process, the current generation takes place in support grains (agglomerates of carbon particles with supported platinum). The speed of this process essentially depends on a degree of support grains pores filling with water. Calculations show if support grains pores are completely filled with water the overall current density in the cathode active layer is much less than in the case of the pores partially or even completely free of water. The last variant of a cathode active layer functioning is realized when the release rate of pores from moisture due to evaporation and filtration of water exceeds the rate of flooding process of ones with water in the process of current generation. This study by method of computer simulation presents a specific example of determining the overall current density in the cathode active layer with varying the speed of emptiness process in pores from moisture due to filtration.
About the Authors
Yu. G. Chirkov
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, RAS 31/4 Leninskiy ave., Moscow, Russia, 119991
Russian Federation
Russian Federation
D.Sc. (chemistry), leading researcher, A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, RAS
V. I. V.I. Rostokin
National Research Nuclear University (MEPhY)
31 Kashirskoe drive, Moscow, Russia, 115409
Russian Federation
Russian Federation
Ph.D. (physics and mathematics), associate professor of the General physics department, National Research Nuclear University (MEPhI)
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Review
For citations:
Chirkov Yu.G., V.I. Rostokin V.I. ACTIVE LAYER OF FUEL CELL CATHODE WITH POLYMER ELECTROLYTE: COMPUTER SIMULATION PROCESS OF MOISTURE EXCHANGE IN SUPPORT GRAINS. Alternative Energy and Ecology (ISJAEE). 2016;(1-2):76-87. (In Russ.) https://doi.org/10.15518/isjaee.2016.01-02.008
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