ns ofsolid oxide fuel cells are studied using ZrO2−ln203as a model electroiyte/elec− trode,Imd ZK》2(Y203)一Laog5Sr〔M5MnO3−Pt mesh as a model electrolyte/electrode/cu皿ent collector,Eiectrochemical perform{mce ofthe cells depellds strongly on the microstructure of electrode as well as the geometry ofthe current collectors.A decrease in effective electrode area occurs both on the microscopic level with a coarse and inhomQgeneous electrode microstmcture and on the microscopic level with awide

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... spacing ofthe cun ent cQllectors.Micro− st㎜cture ta量lo−ng as well as the current collector geometry becomes importImt with decreasing operation tempera− ture Qf the fuel cells.