OXYGEN GAS DIFFUSION CATHODE, ELECTROLYTIC BATH EQUIPPED WITH SAME, PROCESS FOR PRODUCTION OF CHLORINE GAS, AND PROCESS FOR PRODUCTION OF SODIUM HYDROXIDE

摘要

Disclosed are: an oxygen gas diffusion cathode for brine electrolysis, which enables the reduction in initial cell voltage and has excellent durability to short circuit; and an electrolytic bath and an electrolysis method each using the oxygen gas diffusion cathode. In the oxygen gas diffusion cathode, a gas diffusion layer (13) and a reaction layer (14) are arranged on one surface of an electrically conductive base material (12), and an electrically conductive layer (15) is arranged on the other surface of the electrically conductive base material (12). The gas diffusion cathode has the electrically conductive layer (15) formed therein, and therefore can reduce the resistance of the electrically conductive base material (12) and can supply a homogeneous current.