To reduce resistance resulting from electrode reaction while ensuring interfacial adhesion against stress generated in an electrode layer during a high temperature operation.
An electrolyte membrane/electrode laminate 1 for a solid oxide fuel cell has a laminate structure where an electrolyte membrane 2 made of solid oxide is held between an electrode layer 4 of a fuel electrode and an electrode layer 3 of an air electrode. The electrolyte membrane 2 is configured in a one-layer structure comprising only the electrolyte membrane 2 or a two-layer structure comprising an intermediate layer 2B layered between an electrolyte layer 2A and the electrode layer 3. The electrolyte membrane 2 or intermediate layer 2B interfacing with the laminated electrode layer 3 is formed by the burning of a material of an average particle size of 1 [μm] or less for forming the electrolyte membrane 2 or intermediate layer 2B, and is provided on the surface with a plurality of recessed portions 5 of crossing grooves and a plurality of projected portions 6 partitioned by the plurality of recessed portions 5 into a preset form.
HATANO MASAHARU
Yoshio Matsuda
Yasunari Mita
Masaaki Iida
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