Experimental investigation of reverse voltage phenomenon during galvanostatic start-up of a proton exchange membrane fuel cell

Ziliang Gao,Fengfeng Liu,Jinzhan Su,Liejin Guo,Hongtan Liu

Energy Conversion and Management（2022）

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摘要

•Higher startup current density causes larger voltage undershoot.•Increasing cathode humidity is more beneficial to FC startup than the anode.•The magnitudes of voltage undershoot depend on the membrane water content.•The variation mechanism of water content in the membrane is proposed and validated.

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关键词

PEM fuel cell,Reverse voltage,Membrane dehydration,Galvanostatic startup,Water management

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