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- W2959381966 abstract "Automotive subzero cold-starts are challenging for proton exchange membrane fuel cells (PEMFCs) and depend on material structure and initial water content (λinitial). PEMFC cold-start capabilities are commonly investigated with isothermal water fill tests (WFTs) after partially dehydrating the cell at operational temperatures, then freezing, followed by applying low loads under 100 mA cm−2 to quantify the subzero water storage capacity. Herein, isothermal WFTs were performed using two preconditioning methods to evaluate the ionomer proton conductivity and water redistributions at −20 °C (at 10 mA cm−2): (i) Equilibrium purged to a specific relative humidity (44% or 75%, λinitial=3.2and5.3) and (ii) Load terminated with inlet relative humidities of 17% or 44% sealed immediately after polarization curves at 80 °C (calculated λinitial=4.0and4.7). The load terminated preconditioning method more closely emulates an on-board stack cold-start. For the two preconditioned tests with identical preconditioning inlet relative humidities (44%), the load terminated case showed a 2.3x reduction in protonic resistance and a 20% increase in electrochemical surface. Additionally, during the WFT the initial on load voltage of the load terminated preconditioning was 30–60 mV higher; however the time on load prior to freeze-out was 23 min compared to the 31 min for equilibrium purged." @default.
- W2959381966 created "2019-07-23" @default.
- W2959381966 creator A5032230994 @default.
- W2959381966 creator A5078015063 @default.
- W2959381966 date "2019-08-01" @default.
- W2959381966 modified "2023-09-25" @default.
- W2959381966 title "Subzero water distribution in proton exchange membrane fuel cells: Effects of preconditioning method" @default.
- W2959381966 cites W1530333812 @default.
- W2959381966 cites W1552909180 @default.
- W2959381966 cites W1903915324 @default.
- W2959381966 cites W1967547597 @default.
- W2959381966 cites W1969910519 @default.
- W2959381966 cites W1972556702 @default.
- W2959381966 cites W1972870689 @default.
- W2959381966 cites W1974711911 @default.
- W2959381966 cites W1987009405 @default.
- W2959381966 cites W1987429767 @default.
- W2959381966 cites W1987810083 @default.
- W2959381966 cites W1988417800 @default.
- W2959381966 cites W1990214556 @default.
- W2959381966 cites W1996740857 @default.
- W2959381966 cites W1999888851 @default.
- W2959381966 cites W2001931635 @default.
- W2959381966 cites W2002294515 @default.
- W2959381966 cites W2002773133 @default.
- W2959381966 cites W2004126240 @default.
- W2959381966 cites W2013812970 @default.
- W2959381966 cites W2016360054 @default.
- W2959381966 cites W2018675293 @default.
- W2959381966 cites W2027640722 @default.
- W2959381966 cites W2031049203 @default.
- W2959381966 cites W2031313997 @default.
- W2959381966 cites W2032335421 @default.
- W2959381966 cites W2034182074 @default.
- W2959381966 cites W2036995996 @default.
- W2959381966 cites W2044307855 @default.
- W2959381966 cites W2045722689 @default.
- W2959381966 cites W2046158137 @default.
- W2959381966 cites W2053619228 @default.
- W2959381966 cites W2054289993 @default.
- W2959381966 cites W2055578310 @default.
- W2959381966 cites W2057215517 @default.
- W2959381966 cites W2060993769 @default.
- W2959381966 cites W2064354494 @default.
- W2959381966 cites W2065517454 @default.
- W2959381966 cites W2068545616 @default.
- W2959381966 cites W2070468640 @default.
- W2959381966 cites W2070825068 @default.
- W2959381966 cites W2071669336 @default.
- W2959381966 cites W2072370499 @default.
- W2959381966 cites W2083810895 @default.
- W2959381966 cites W2086797639 @default.
- W2959381966 cites W2087835187 @default.
- W2959381966 cites W2088115995 @default.
- W2959381966 cites W2089385015 @default.
- W2959381966 cites W2091252781 @default.
- W2959381966 cites W2093132687 @default.
- W2959381966 cites W2093455945 @default.
- W2959381966 cites W2093842695 @default.
- W2959381966 cites W2094972530 @default.
- W2959381966 cites W2095100441 @default.
- W2959381966 cites W2095621897 @default.
- W2959381966 cites W2102985834 @default.
- W2959381966 cites W2108044226 @default.
- W2959381966 cites W2113706127 @default.
- W2959381966 cites W2117588505 @default.
- W2959381966 cites W2123217077 @default.
- W2959381966 cites W2127166638 @default.
- W2959381966 cites W2132128340 @default.
- W2959381966 cites W2136070619 @default.
- W2959381966 cites W2139826518 @default.
- W2959381966 cites W2150765896 @default.
- W2959381966 cites W2167428148 @default.
- W2959381966 cites W2171027333 @default.
- W2959381966 cites W2274991264 @default.
- W2959381966 cites W2318289591 @default.
- W2959381966 cites W2472565640 @default.
- W2959381966 cites W2493214650 @default.
- W2959381966 cites W2507752151 @default.
- W2959381966 cites W2519517278 @default.
- W2959381966 cites W2556046035 @default.
- W2959381966 cites W2603323142 @default.
- W2959381966 cites W2618997936 @default.
- W2959381966 cites W2728198627 @default.
- W2959381966 cites W2791462380 @default.
- W2959381966 cites W2816970347 @default.
- W2959381966 cites W2884769473 @default.
- W2959381966 cites W2917990322 @default.
- W2959381966 doi "https://doi.org/10.1016/j.ijhydene.2019.06.101" @default.
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