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Rapid and Flash Tests: Indicator for Quality of HT‐PEM Fuel Cells Batches?
Author(s) -
Rastedt M.,
Büsselmann J.,
Tullius V.,
Wagner P.,
Dyck A.
Publication year - 2018
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.201700177
Subject(s) - proton exchange membrane fuel cell , flash (photography) , phosphoric acid , electrolyte , materials science , characterization (materials science) , electrochemistry , electrode , cycling , composite material , nuclear engineering , chemical engineering , fuel cells , chemistry , nanotechnology , metallurgy , engineering , art , visual arts , archaeology , history
In order to control the batch quality of membrane electrode assemblies (MEA), two new short tests have been developed. The first being a rapid test, composed of a start‐up and break‐in followed by initial characterization and has a test duration of about 65 h, while the second is a flash test, which is reduced by the break‐in, so that the maximum duration is 8 h. These tests have been compared with classical accelerated stress tests like load cycling at high current densities and start/stop‐cycling. For the investigations presented in this publication, high temperature polymer electrolyte MEAs from two different suppliers were used. The extensive electrochemical characterization clearly shows that the newly introduced fast tests can be used to check the batch qualities. In addition to the electrochemical investigations, the phosphoric acid content of all MEAs has been determined and ex situ micro‐computed tomography analysis has been performed.