Ion exchange membrane electrolytic cell
US8197649B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 17, 2006 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Jul 24, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B11/031
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
[Problems] The liquid pressure of an anode chamber in a two-chamber ion exchange membrane electrolytic cell using a gas diffusion electrode are different among one another depending on depths so that the liquid pressures are applied on an anode or an ion exchange membrane, thereby introducing damage or deformation of the elements.[Means for Solving] A cushion material 10 is accommodated between a cathode gas chamber back plate 9 and a gas diffusion electrode 7 of an ion exchange membrane electrolytic cell 1 such that a repulsive force of the cushion material at the bottom part of the cathode gas chamber is larger than that at the top part. The excessive pressure applied to an ion exchange membrane is suppressed to prevent the generation of scratches or the like by decreasing the repulsive force of the cushion material toward the top in accordance with a differential pressure between an anode chamber pressure and a cathode gas chamber pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.