Polymer electrolyte membrane fuel cell operating in stoichiometric regime

JOURNAL OF POWER SOURCES

卷:440

Article

Chevalier, S.¹  Olivier, J. -C.²  Josset, C.³  Auvity, B.³ 

[1] ENSAM, CNRS, UMR 5295, I2M Inst Mecan & Ingn Bordeaux, F-33405 Talence, France

[2] Univ Nantes, IREENA Lab, EA 4642, 37 Blvd Univ,BP 406, F-44602 St Nazaire, St Nazaire, France

[3] Univ Nantes, Polytech Nantes, CNRS, Lab Therm & Energie Nantes,UMR 6607, Rue Christian Pauc,CS 50609, F-44306 Nantes 3, France

关键词: Stoichiometric regime;    Analytical model;    Segmented cell;    PEM fuel cell;    EIS;   

DOI  :  10.1016/j.jpowsour.2019.227100

来源: Elsevier

【 摘 要 】

In this work, we report the existence of a stoichiometric regime where the performances of operating polymer electrolyte membrane (PEM) fuel cells are entirely governed by the mass transport in the cathode channels. An analytical model of the fuel cell stoichiometric regime is derived and evidenced experimentally: from the cell spectral signature at low frequency based on electrochemical impedance spectroscopy, and from the current density distribution measured using a segmented current collector. The existence of such regime provides a simple way to characterize, model and predict PEM fuel cell performances.

【 授权许可】

Free