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https://drivepatents.com/patents/1074130 · 14 Sep 2005
A direct methanol fuel cell has a proton conducting membrane (PCM), a catalyst in contact with the PCM, a gas diffusion layer in contact with the catalyst, and a conducting plate in contact with the gas diffusion membrane. The gas diffusion layer comprises...
https://drivepatents.com/patents/1081173 · 29 Dec 2004
The method involves using ink containing catalyzer and maintaining a connection of the polymer electrolyte membrane with at least one protective foil during all stages of the process. The process is continuously operated and both the polymer electrolyte me...
https://drivepatents.com/patents/1091306 · 10 Dec 2003
The invention relates to the field of electrochemical cells and fuel cells, more specifically to polymer-electrolyte-membrane (PEM) fuel cells and describes a process for the manufacture of membrane-electrode-assemblies (MEAs) containing five layers. The f...
https://drivepatents.com/patents/1092309 · 29 Oct 2003
A method for producing an electrolyte membrane electrode assembly for a fuel cell according to this invention comprises the steps of: laminating a hydrogen-ion conductive polymer membrane on one face of a first shape-retaining film; forming a first catalys...
https://drivepatents.com/patents/1093556 · 3 Sep 2003
The method for producing, for fuel cells, a polymer electrolyte membrane in the form of a tape coated on both sides with a catalyst involves use of a membrane with a support foil on its rear side, application (with use of a catalyst ink) of an electrode la...
https://drivepatents.com/patents/1102711 · 7 Aug 2002
A method for producing a membrane electrode assembly 1 for solid polymer electrolyte fuel cell, the membrane electrode assembly 1 including a solid polymer electrolyte membrane 2 comprising an ion exchange membrane, a first electrode 3 having a first catal...