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- W1972502664 abstract "A hybrid power source was demonstrated to successfully power a simulated power load encountered in portable military electronics and communications equipment. The hybrid system consisted of a 25 W proton exchange membrane fuel cell (PEMFC) stack connected in parallel with a 70 F capacitor bank. The cyclic regime of 18.0 W for 2 min followed by 2.5 W for 18 min was chosen as the baseline for the simulation of power load. The operating potential cut-off voltage for pass/failure was set to 3.0 V. At room temperature (23–25°C), the PEMFC alone could not handle the described baseline regime with the PEMFC operating potential dropping below the cut-off voltage within 10 s. The hybrid, however, continuously powered the same regime for 25 h. Its operating potential never reached the voltage cut-off point, not even during the high load of 18.0 W. The tests with hybrid configuration were aborted after 25 h of operation with no signs of output degradation, suggesting that further extended operation was possible." @default.
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- W1972502664 date "1999-05-01" @default.
- W1972502664 modified "2023-10-10" @default.
- W1972502664 title "Fuel cell/electrochemical capacitor hybrid for intermittent high power applications" @default.
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- W1972502664 doi "https://doi.org/10.1016/s0378-7753(98)00199-2" @default.
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