专利名称：Fuel Cell Assembly and Method for
Operating a Fuel Cell Assembly
发明人：Torsten BRANDT,Armin DATZ,Albert
HAMMERSCHMIDT,Silke LATZEL,JosefLERSCH,Arno MATTEJAT
申请号：US15500556申请日：20150728
公开号：US20170222249A1公开日：20170803
摘要：A fuel cell assembly with at least one PEM fuel cell for generating electricalenergy from reactant gases includes at least one membrane/electrode having amembrane coated with platinum electrodes and, respectively positioned on each side, aporous gas diffusion layer, or having a membrane and, respectively positioned on eachside, a porous gas diffusion layer coated with a platinum electrode, and also includesbipolar plates that lie against the gas diffusion layers and through which, during
operation, a coolant flows, wherein at least one of the platinum electrodes has a smallerarea than the gas diffusion layer, where the gas diffusion layer protrudes beyond theplatinum electrode for a part of an edge region of the membrane/electrode unit, so thatthe formation of an electrochemical potential in this part of the edge region of themembrane/electrode unit is prevented in order to prevent damage to the membrane.
申请人：Siemens Aktiengesellschaft
地址：Muenchen DE
国籍：DE
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