Titanium-based coating layer anode and preparation method thereof

The invention relates to a titanium-based coating layer anode and a preparation method thereof, and belongs to the technical field of wet-process metallurgy anode preparation. The titanium-based coating layer anode is formed by attaching a coating layer with the thickness of 1-7 [mu]m on an anode titanium rod surface, wherein the molar ratio of tin to antimony in the coating layer is 9:0.5-2, and the coating layer contains 1 wt%-7 wt% of a polyaniline pyrolytic carbon nitrogen material. The preparation process comprises surface cleaning treatment of a titanium substrate before coating a layer, preparation of a coating layer original liquid, and coating layer brushing and burning process. An anode material prepared by the method has relatively high chlorine evolution activity during electrodeposition, and has relatively low cell voltage relative to a carbon material; and moreover, because of a physical barrier effect of the coating layer, the degree of an electrode base material corroded by chlorine ions is hi