发明名称 |
Gasverteilerfeldplatte mit verbesserter Gasverteilung für eine Brennstoffzelle und eine solche enthaltende Brennstoffzelle |
摘要 |
The present invention relates to a gas distributor field plate for a fuel cell, parallel extending gas guide channels, which are delimited by webs, being disposed in the gas distributor field plate for the reaction gases in a meander-shaped structure, characterized in that on the meander-shaped defining channels, which are present on webs with an opposite flow direction of the reaction gases, meander-shaped defining web having an increased width compared to the remaining webs are provided, wherein the widened meander-shaped defining webs are modified in the deflection regions of the meander-shaped defining channels such that a reactant depletion in the deflection regions of the meander-shaped defining channels and a transversal transport of media along the meander-shaped defining channels are prevented. The invention further relates to a fuel cell having such a gas distributor field plate on the cathode side and/or on the anode side, particularly a polymer electrolyte membrane (PEM) fuel cell. |
申请公布号 |
DE102008017600(B4) |
申请公布日期 |
2010.07.15 |
申请号 |
DE20081017600 |
申请日期 |
2008.04.07 |
申请人 |
ZENTRUM FUER SONNENENERGIE- UND WASSERSTOFF-FORSCHUNG BADEN-WUERTTEMBERG GEMEINNUETZIGE STIFTUNG |
发明人 |
SCHOLTA, JOACHIM;HAEUSLER, FRANK;MESSERSCHMIDT, MATTHIAS;LEHNERT, WERNER;JOERISSEN, LUDWIG |
分类号 |
H01M8/02 |
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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