| http://www.w3.org/ns/prov#value | - Another embodiment of the present invention is a method for producing a fuel cell device monolith comprising the steps of: (i) producing at least three fuel cell devices comprising an electrolyte sheet; (ii) patterning a surface of at lest two of said devices with glass, glass-ceramic or ceramic based material, thereby producing a plurality of patterned devices; (iii) sintering each of said patter
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