CELL, CELL STACKER, MODULE, AND MODULE STORAGE DEVICE

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[Problem] To provide a cell capable of minimizing cracking, a cell stacker, a module, and a module storage device. [Solution] This cell is characterized in containing, in an area devoid of a second electrode layer (6) of a solid electrolyte layer (4), a main component that is the same oxide as the main component of the solid electrolyte layer (4) but has a different rare-earth-element content, and in being provided with a first layer (7) that is stronger than the solid electrolyte layer (4). This cell stack device is characterized in being equipped with a plurality of the cells (100, 200, 300), and in that the cells are electrically connected. This module is characterized in that the cell stack device is stored inside a storage container. This module storage device is characterized in that the module and an auxiliary machine for activating the module are stored in an outer case.