发明名称 |
MEMBRAN-ELEKTRODE-ENHED TIL ELEKTROKEMISKE ANORDNINGER |
摘要 |
The invention relates to membrane-electrode assemblies for the electrolysis of water (electrolysis MEAs), which contain an ion-conducting membrane having a front and rear side; a first catalyst layer on the front side; a first gas diffusion layer on the front side; a second catalyst layer on the rear side, and a second gas diffusion layer on the rear side. The first gas diffusion layer has smaller planar dimensions than the ion-conducting membrane, whereas the second gas diffusion layer has essentially the same planar dimensions as the ion-conducting membrane (“semi-coextensive design”). The MEAs also comprise an unsupported free membrane surface that yields improved adhesion properties of the sealing material. The invention also relates to a method for producing the MEA products. Pressure-resistant, gastight and cost-effective membrane-electrode assemblies are obtained, that are used in PEM water electrolyzers, regenerative fuel cells or in other electrochemical devices. |
申请公布号 |
DK1654776(T3) |
申请公布日期 |
2014.01.06 |
申请号 |
DK20040763216T |
申请日期 |
2004.07.14 |
申请人 |
UMICORE AG & CO. KG |
发明人 |
SCHAACK, KLAUS;DZIALLAS, HOLGER;SEIPEL, PETER;DILLMANN, BERND;WITTPAHL, SANDRA;VULPIUS, GUENTHER;ZUBER, RALF |
分类号 |
H01M8/02;C25B1/10;C25B9/10;H01M2/00;H01M2/02;H01M2/08;H01M2/14;H01M4/86;H01M4/88;H01M8/10 |
主分类号 |
H01M8/02 |
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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