Electrolysis device

Abstract

According to an embodiment, an electrolysis device includes a cathode for reducing a reduction target to generate a reduction product, an anode for oxidizing an oxidation target to produce an oxidation product, an electrolyte layer provided between the cathode and the anode, and the electrolyte layer including an electrolyte layer material containing at least one selected from the group consisting of a heat-resistant polymer, a solid acid, a solid acid salt, and a molten salt, and a first ion conductive material, and a control layer that is provided at least one of between the cathode and the electrolyte layer and between the anode and the electrolyte layer, and that includes a porous material and a second ion-conductive material supported in at least a part of pores of the porous material, wherein 0≤A≤B is satisfied, where A is an area of the second ion conductive material on a surface of the control layer on the cathode side or/and the anode side, and B is an area of the second ion conductive material on a surface of the control layer on the electrolyte layer side.

What is claimed is: 
     
         1 . An electrolysis device comprising:
 a cathode for reducing a reduction target to generate a reduction product,   an anode for oxidizing an oxidation target to produce an oxidation product,   an electrolyte layer provided between the cathode and the anode, and the electrolyte layer including an electrolyte layer material containing at least one selected from the group consisting of a heat-resistant polymer, a solid acid, a solid acid salt, and a molten salt, and a first ion conductive material, and   a control layer that is provided at least one of between the cathode and the electrolyte layer and between the anode and the electrolyte layer, and that includes a porous material and second ion-conductive material supported in at least a part of pores of the porous material, wherein 0≤A≤B is satisfied, where A is an area of the second ion conductive material on a surface of the control layer on the cathode side or/and the anode side, and B is an area of the second ion conductive material on a surface of the control layer on the electrolyte layer side.   
     
     
         2 . The electrolysis device according to  claim 1 , wherein
 B≤C is satisfied, where C is an area of the first ion conductive material on a surface of the electrolyte layer on the control layer side.   
     
     
         3 . The electrolysis device according to  claim 1 , wherein
 the first ion conductive material includes at least one of a solid acid, a solid acid salt, a molten salt, a liquid acid, an ionic liquid, and an ion conductive polymer.   
     
     
         4 . The electrolysis device according to  claim 1 , wherein
 the second ion-conductive material includes one or more of the first ion-conductive materials.   
     
     
         5 . The electrolysis device according to  claim 1 , wherein
 the first ion conductive material and the second ion conductive material are different from each other.   
     
     
         6 . The electrolysis device according to  claim 1 , wherein
 the porous material includes a non-ion conductive material.   
     
     
         7 . The electrolysis device according to  claim 1 , wherein
 a porosity of the porous material is 20% or more and 80% or less.   
     
     
         8 . The electrolysis device according to  claim 1 , wherein
 the diameters of the pores are equal to or smaller than 1 mm.   
     
     
         9 . The electrolysis device according to  claim 1 , wherein
 the electrolyte layer contains a matrix material.   
     
     
         10 . The electrolysis device according to  claim 1 , wherein
 a contact angle of water on the porous material is 45 degrees or more.   
     
     
         11 . The electrolysis device according to  claim 1 , wherein
 a temperature of the electrolyte layer during operation of the electrolysis device is 100° C. or higher and 500° C. or lower.   
     
     
         12 . The electrolysis device according to  claim 1 , wherein
 the cathode contains a basic compound.   
     
     
         13 . The electrolysis device according to  claim 12 , wherein
 the basic compound is an alkali metal salt or an alkaline earth metal salt.