Electrolytic bath

The utility model provides an electrolytic bath which comprises two opposite end pole structures, a middle pole plate and a plurality of electrolytic units, the middle pole plate and the electrolytic units are pressed between the two end pole structures, adjacent electrolytic units are isolated through an isolation structure, and the isolation structure comprises a partition plate and an isolation frame sleeved on the circumferential outer side of the partition plate. The isolation frame is provided with an electrolyte inlet and an electrolyte outlet, comb tooth structures are arranged in the directions, close to the center of the partition plate, of the electrolyte inlet and the electrolyte outlet, and the thicknesses of comb teeth and gaps of the comb tooth structures range from 3 mm to 5 mm. By the adoption of the structure, electrolyte can flow into or flow out of the electrolysis unit through gaps of the comb tooth structures of the electrolyte inlet and the electrolyte outlet, when the electrolyte inlet