发明名称 |
METHOD FOR THE PREPARATION OF CATALYST-COATED MEMBRANES |
摘要 |
The present invention is directed to a method for preparing an integral 3-layer catalyst-coated membrane (CCM) for use in electrochemical cells, e.g. PEM (polymer-electrolyte membrane) fuel cells. The process comprising the steps of preparing a first catalyst layer on a supporting substrate, subsequently coating the first catalyst layer with an ionomer dispersion to form an ionomer layer (membrane), and applying a second catalyst layer on top of the ionomer layer. The ionomer dispersion applied in the membrane coating step has a low viscosity in the range of 10 to 400 centipoises (cP) and an ionomer concentration in the range of 15 to 35 weight-%. With this method, CCMs with improved electrochemical performance and reduced cathode resistance are manufactured.. |
申请公布号 |
CA2853881(A1) |
申请公布日期 |
2013.05.10 |
申请号 |
CA20122853881 |
申请日期 |
2012.11.02 |
申请人 |
SOLVICORE GMBH & CO. KG |
发明人 |
GHIELMI, ALESSANDRO;MERLO, LUCA;BINDER, MATTHIAS;FACCHI, DANIELE;ARCELLA, VINCENZO |
分类号 |
H01M8/10;H01M4/86;H01M4/88 |
主分类号 |
H01M8/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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