%0 Journal Article
%A Stähler, Markus
%A Stähler, Andrea
%A Scheepers, Fabian
%A Carmo, Marcelo
%A Stolten, Detlef
%T A Completely Slot Die Coated Membrane Electrode Assembly
%J International journal of hydrogen energy
%V 44
%N 14
%@ 0360-3199
%C New York, NY [u.a.]
%I Elsevier
%M FZJ-2018-04996
%P 7053 - 7058
%D 2019
%X This work shows how to manufacture completely coated membrane electrode assemblies (CC-MEAs) for PEM water electrolysis by only using a slot die. Platinum, Nafion®, and IrO2 dispersions are successively coated to the respective dried layer. For comparison reasons, MEAs with the same Iridium loading of 2.1 mg cm−2 and Platinum loading of 0.4 mg cm−2, assembled with a commercial membrane of the same 20 μm thickness, were produced via decal method. Differences in polarization curves are attributed to the lower high frequency resistance of CC-MEAs determined by impedance spectroscopy. The easy-to-scale CC-MEA method presented here offers the advantages of direct membrane deposition (DMD) without the challenge of homogenously coating a porous transport layer (PTL). Therefore, it allows a free choice of different PTLs – regardless if in sintered form or as expanded metal. The comparability between the produced CC-MEAs and published DMD results is shown by means of cross-sectional and electrochemical measurements.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000462102000002
%R 10.1016/j.ijhydene.2019.02.016
%U https://juser.fz-juelich.de/record/851306