Electrolytic cell for production of organic chemical hydrides

An electrolysis cell for producing an organic chemical hydride, comprising:

• a solid polymer electrolyte film which has proton conductivity;
• a cathode which is provided on one surface of the solid polymer electrolyte film and generates a hydride by reducing a substance to be hydrogenated;
• a cathode chamber which accommodates the cathode and to which the substance to be hydrogenated is supplied;
• an electrode catalyst-containing anode which generates a proton by oxidizing water, wherein said anode is provided on another surface of the solid polymer electrolyte film and is separated from the solid polymer electrolyte film by a spacer interposed between the anode and the solid polymer electrolyte film, said spacer being configured to maintain a predetermined gap between the anode and the electrolyte film;
• and
• an anode chamber which accommodates the anode and to which an electrolytic solution is supplied,
• wherein at least one of a surface of the cathode side and a surface of the anode side of the solid polymer electrolyte film is hydrophilized,
• wherein the surface of the solid polymer electrolyte film is roughened for hydrophilization, wherein the surface of the solid polymer electrolyte film is coated with an inorganic substance layer for hydrophilization, the inorganic substance layer comprising 5% to 70% by mass of a binder having a fluorine-based polymer with hydrophilicity and 30% to 95% by mass of a primary particle having an average particle diameter of 0.005 to 10 μm,
• wherein a coating amount of the inorganic substance layer is in the range of 0.01 to 10 mg/cm2, and
• wherein the thickness of the inorganic substance layer is in the range of 5 μm to 30 μm.