Chem. J. Chinese Universities ›› 2026, Vol. 47 ›› Issue (1): 20250262.doi: 10.7503/cjcu20250262

• Review • Previous Articles     Next Articles

Research Progress and Improvement Strategies of Phosphoric Acid-doped High-temperature Proton Exchange Membranes

LIU Binghui1,2, ZHAO Chengji1()   

  1. 1.College of Chemistry,Jilin University,Changchun 130012,China
    2.College of Chemistry and Life Sciences,Changchun University of Technology,Changchun 130012,China
  • Received:2025-09-15 Online:2026-01-10 Published:2025-11-21
  • Contact: ZHAO Chengji E-mail:zhaochengji@jlu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(22579067)

Abstract:

Proton exchange membrane fuel cell(PEMFC) has outstanding advantages such as high energy conversion efficiency, fast start-up speed, easy operation and maintenance. In the temperature range of 120 to 250 ℃, the operation of high-temperature proton exchange membrane fuel cells(HT-PEMFC) does not rely on the presence of water for proton conduction. This can effectively simplify the water management system, enhance the kinetics of electrode reactions, and strengthen the anti-poisoning ability of platinum-based electrocatalysts. At present, phosphoric acid(PA)-doped polybenzimidazole(PBI) membrane is the preferred membrane material in HT-PEMFC, but it faces key challenges, such as poor antioxidant stability and PA loss. In this review, the transport mechanism of PA-doped high-temperature proton exchange membranes(HT-PEM) is first clarified, and such materials are systematically classified based on the research progress in the past 10 years. Finally, the key technical challenges and coping strategies of HT-PEM are analyzed, and the future development trend is prospected.

Key words: Proton exchange membrane, Fuel cell, Antioxidant stability, Phosphoric acid loss

CLC Number: 

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