Electrolytic bath

The invention provides an electrolytic cell capable of suppressing local deformation of a diaphragm. In one embodiment of the present invention, an electrolytic cell has a positive electrode, a negative electrode, a diaphragm, and a support frame, and at least an end edge of at least one of the positive electrode and the negative electrode overlaps a sealing surface of the support frame in a plan view. 本发明提供一种能够抑制隔膜的局部性变形的电解槽。在本发明一实施方式中，电解槽具有阳极、阴极、隔膜和支撑体框架，在俯视角度下，所述阳极和所述阴极中至少一方的电极的至少端部边缘与所述支撑体框架的密封面重合。