| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that, in a two chamber process ion exchange membrane type electrolytic cell using a gas diffusion electrode, the liquid pressure of an anode chamber is different according to liquid depth, and the liquid pressure is applied to an anode and an ion exchange membrane, and easily causes the damage and deformation of these members. SOLUTION: A cushioning material 10 is stored between the back plate 9 of a cathode gas chamber in the body 1 of the ion exchange membrane type electrolytic cell and a gas diffusion electrode 7 in such a manner that the reaction force thereof is made higher in the lower part of the cathode gas chamber than the upper part of the cathode gas chamber. By weakening the reaction force of the cushioning material as it goes to the upper part in accordance with the differential pressure between the anode chamber pressure and the cathode gas chamber pressure, the application of the excessive pressure to the ion exchange membrane is prevented, so as to prevent the generation of damage or the like. COPYRIGHT: (C)2007,JPO&INPIT
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