MEDIA DISTRIBUTION MAGNETORESISTOR WITH INCREASED, HOMOGENEOUS CURRENT DENSITY DISTRIBUTION FOR AN ELECTROCHEMICAL CELL AND ELECTROCHEMICAL CELL CONTAINING SUCH A MEDIA DISTRIBUTION MAGNETORESISTOR

摘要

A media distribution magnetoresistor for an electrochemical cell, wherein media-conducting channels (2) which run parallel, are bounded by webs (1) and are intended for the fluidic reaction media are arranged with a meandering structure in the media distribution magnetoresistor, wherein the meander limit channels (3, 3'), which are present at webs with an opposed flow direction of the reaction media, are provided with meander limit webs (4, 4'), which are expanded rising in a stepped manner, such that the web width is lowest in the deflecting regions (5, 5') of the meander limit channels (3, 3'). Furthermore, the invention relates to an electrochemical cell, in particular a fuel cell or a redox flow cell, with such a media distribution magnetoresistor on the cathode side and/or anode side, in particular a direct methanol fuel cell (DMFC).