Co2 electrolysis device

Abstract

A CO2 electrolysis device includes a CO2 electrolytic laminate constituted by a plurality of CO2 electrolysis cells, which are laminated, end plates provided on both ends of the CO2 electrolytic laminate in a lamination direction, and collars that are provided on both ends of the CO2 electrolytic laminate in a first direction perpendicular to the lamination direction and that are disposed between the end plates, the collars being longer than the CO2 electrolytic laminate in the lamination direction, and the end plates having a shape bent inward in the lamination direction at a central portion of the CO2 electrolytic laminate in the first direction.

What is claimed is: 
     
         1 . A CO 2  electrolysis device comprising:
 a CO 2  electrolytic laminate constituted by a plurality of CO 2  electrolysis cells, which are laminated;   end plates provided on both ends of the CO 2  electrolytic laminate in a lamination direction; and   collars that are provided on both ends of the CO 2  electrolytic laminate in a first direction perpendicular to the lamination direction and that are disposed between the end plates,   wherein the collars are longer than the CO 2  electrolytic laminate in the lamination direction, and   the end plates have a shape bent inward in the lamination direction at a central portion of the CO 2  electrolytic laminate in the first direction.   
     
     
         2 . The CO 2  electrolysis device according to  claim 1 , wherein the end plates include a plurality of bolt holes, and
 the end plates are bent inward in the lamination direction by fastening bolts inserted through the bolt holes to nuts.   
     
     
         3 . The CO 2  electrolysis device according to  claim 1 , wherein an electrolyte inlet of the CO 2  electrolytic laminate is disposed closer to a center in a second direction, which is perpendicular to the lamination direction and the first direction, than an electrolyte outlet.