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Automotive Engineering ›› 2025, Vol. 47 ›› Issue (12): 2346-2357.doi: 10.19562/j.chinasae.qcgc.2025.12.007

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Quantitative Study on the Corrosion Acceleration Factor of Bipolar Plates Under Various Operating Conditions

Feiyu Li1,Daokuan Jiao2,Dong Hao2,Yongping Hou1()   

  1. 1.School of Automotive Studies,Tongji University,Shanghai 201804
    2.China Automotive Technology & Research Center Co. ,Ltd. ,CATARC New Energy Vehicle Test Center (Tianjin) Co. ,Ltd. ,Tianjin 300300
  • Received:2025-04-08 Revised:2025-05-13 Online:2025-12-25 Published:2025-12-19
  • Contact: Yongping Hou E-mail:yphou@tongji.edu.cn

Abstract:

Corrosion of bipolar plates in proton exchange membrane fuel cells at high temperature and high potential becomes a key challenge restricting their durability. In this paper, the influence of different temperature and potential on the corrosion acceleration factor of bipolar plates is studied quantitatively by electrochemical test. The synergistic mechanism of temperature and potential on corrosion rate is revealed by establishing the corrosion acceleration factor model of three kinds of bipolar plates. The results show that the effect of electric potential on the electrochemical corrosion of bipolar plate is very obvious. The research results provide theoretical support for bipolar plate material selection, operation parameter optimization and PEMFC durability improvement.

Key words: proton exchange membrane fuel cell, bipolar plates, corrosion acceleration factor, quantitative study