Electrochemical cell stacks, hot modules, and electrolytic reactors

Abstract

This invention provides an electrochemical cell stack that allows for an increase in the number of stacked cell cassettes. [Solution] The electrochemical cell stack 20A comprises a central plate 22 having an upper surface 221 and a lower surface 222, a first cell cassette group 24 consisting of a plurality of cell cassettes 100 stacked on the upper surface 221 side, a second cell cassette group 25 consisting of a plurality of cell cassettes 100 stacked on the lower surface 222 side, a first fastening bolt BT1 for fastening the first cell cassette group 24 to the central plate 22, and a second fastening bolt BT2 for fastening the second cell cassette group 25 to the central plate 22. All cell cassettes 100 constituting the first cell cassette group 24 are arranged so that the fuel electrode layer 111c of the electrolytic cell 111 faces the upper surface 221 of the central plate 22, and all cell cassettes 100 constituting the second cell cassette group 25 are arranged so that the fuel electrode layer 111c of the electrolytic cell 111 faces the lower surface 222 of the central plate 22.

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