Electrochemical Impedance Diagnosis of Abnormal Operational Conditions for Reliability of Polymer Electrolyte Fuel Cells in Marine Power Application -Sea Salt Contamination-

2019 ◽  
Vol 92 (8) ◽  
pp. 341-349
Author(s):  
Hironori Nakajima ◽  
Tatsumi Kitahara ◽  
Kenta Dan
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Electrochemical Impedance ◽  
Polymer Electrolyte Fuel Cells ◽  
Sea Salt ◽  
Operational Conditions ◽  
Power Application

Use and misuse of electrochemical impedance spectroscopy in PEFC research

2019 ◽  
Author(s):  
Pierre Boillat ◽  
Lorenz Gubler ◽  
Felix N. Büchi ◽  
Thomas J. Schmidt
Keyword(s):  
Fuel Cells ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Polymer Electrolyte ◽  
Electrochemical Impedance ◽  
Polymer Electrolyte Fuel Cells ◽  
Impedance Spectra ◽  
Electrochemical Impedance Spectra ◽  
Comprehensive Review ◽  
Research Show

In this presentation, two important pitfalls ocuring during the analysis of electrochemical impedance spectra (EIS) of polymer electrolyte fuel cells (PEFCs) are discussed. Based on very simple considerations, some commonly found interpretation statements are identified as wrong. A comprehensive review of the papers published during the year 2018 using EIS in PEFC research show that such wrong statements are not occasional, but frequently occurring in the peer reviewed literature. At the end of the presentation, solution are proposed to increase the awareness to the risks of wrong EIS interpretations.

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