caa a22 4500 477051669 CHVBK 20180405111341.0 cr unu---uuuuu 170330e19960201xx s 000 0 eng 10.1007/BF00364064 doi (NATIONALLICENCE)springer-10.1007/BF00364064 Effect of operational potential on performance decay rate in a phosphoric acid fuel cell [Elektronische Daten] [J. Aragane, H. Urushibata, T. Murahashi] The effect of operational potential on the cell voltage decay rate in a phosphoric acid fuel cell was estimated using the calculation of the platinum dissolution rate. The voltage loss, due to deterioration in activation polarization, was used in calculating the cell voltage decay rate. The voltage loss due to activation polarization was estimated using the relationship between the activation polarization and the platinum surface area. The change in the Pt surface area, arising from the dissolution of platinum, was obtained under accelerated open circuit voltage (o.c.v.) conditions. The study was focused on typical voltage decay rates from 0.1 to 10 mV per 1000 h. It was found that the cell voltage decay became significant even at low temperature during long-term operation (at o.c.v.) and that the cell had to be operated below 840 mV (iR-free) at 200 mA cm−2) 200°C for a decay rate of 1 mV per 1000 h. From the present estimation, operational conditions such as temperature, cathode potential, and holding time at a given potential, can be roughly determined for a given decay rate. It was concluded that the voltage loss due to platinum dissolution may be negligible at a rated power operation. Chapman & Hall, 1996 Aragane J. Advanced Technology R&D Center, Mitsubishi Electric Corporation, 1-1, Tsukaguchi-Honmachi 8-Chome, Amagasaki, 661, Hyogo, Japan aut Urushibata H. Advanced Technology R&D Center, Mitsubishi Electric Corporation, 1-1, Tsukaguchi-Honmachi 8-Chome, Amagasaki, 661, Hyogo, Japan aut Murahashi T. Kobe Works, Mitsubishi Electric Corporation, 1-2, Wadasaki-cho, 1-chome, Hyogo-ku, 652, Kobe, Japan aut Journal of Applied Electrochemistry Kluwer Academic Publishers 26/2(1996-02-01), 147-152 0021-891X 26:2<147 1996 26 10800 https://doi.org/10.1007/BF00364064 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00364064 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Aragane J. Advanced Technology R&D Center, Mitsubishi Electric Corporation, 1-1, Tsukaguchi-Honmachi 8-Chome, Amagasaki, 661, Hyogo, Japan aut NATIONALLICENCE 700 1- Urushibata H. Advanced Technology R&D Center, Mitsubishi Electric Corporation, 1-1, Tsukaguchi-Honmachi 8-Chome, Amagasaki, 661, Hyogo, Japan aut NATIONALLICENCE 700 1- Murahashi T. Kobe Works, Mitsubishi Electric Corporation, 1-2, Wadasaki-cho, 1-chome, Hyogo-ku, 652, Kobe, Japan aut NATIONALLICENCE 773 0- Journal of Applied Electrochemistry Kluwer Academic Publishers 26/2(1996-02-01), 147-152 0021-891X 26:2<147 1996 26 10800 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer