An electrolytic cell with a dual cathode consisting of a Ni screen cathode and a poroun gas-diffusion oxygen cathode separated from each other by a porous diaphragm, has been constructed for measuring the loss of current efficiency.

• 组装了由镍网阴极与多孔气体扩散型氧阴极所构成的双阴极电解槽；两阴极间置有多孔阻气透液隔膜如石棉膜.；利用这种电解槽研究了氯酸盐电化生产过程中阴极电流效率的损失