Method for producing anode active material for secondary battery, anode active material for secondary battery, method for producing anode for secondary battery, anode for secondary battery, and secondary battery

A method for producing an anode for a secondary battery comprising, in this order:

• producing an anode active material for a secondary battery;
• and
• preparing a coating liquid by dispersing the anode active material for a secondary battery in a dispersion solvent, and applying and drying the coating liquid on one or both sides of a metal foil,
• the anode active material is formed by coating a condensed phosphate containing an alkaline earth metal element on a surface of titanium dioxide, the anode active material containing 0.1 to 10% by mass of each of elemental phosphorus and the alkaline earth metal element with respect to the titanium dioxide, and
• the method for producing the anode active material comprises forming titanium dioxide by adding a titanium-containing compound to an acidic aqueous solution, to which phosphoric acid has been added, to carry out hydrolysis, and then adding a condensed phosphate and a compound containing an alkaline earth metal to the acidic aqueous solution, thereby coating a condensed phosphate containing an alkaline earth metal on the surface of the titanium dioxide.