The titanium anode is the anode in a titanium based metal oxide coating. According to their different surface catalytic coatings, they have oxygen evolution and chlorine evolution functions. Generally, electrode materials should have good conductivity, small pole distance variation, strong corrosion resistance, good mechanical strength and processing performance, long service life, low cost, and good electrocatalytic performance for electrode reactions. Currently, titanium is a metal that can meet the above comprehensive requirements, and industrial pure titanium TA1 \ TA2 is generally used.

The function of the metal oxide coating on the titanium anode is to have low electrical resistivity and good conductivity (titanium itself has poor conductivity). The chemical composition of the precious metal coating is stable, the crystal structure is stable, the electrode size is stable, the corrosion resistance is good, the service life is long, and it has good electrocatalytic performance, which is conducive to reducing the overpotential of oxygen and chlorine evolution reactions and saving electricity.