Method for manufacturing titanium-plated member

Abstract

A method for manufacturing a titanium-plated member includes: preparing a substrate having an electrically conductive surface; immersing the substrate in a molten-salt titanium plating solution composition containing ions of at least one Group I metal selected from the group of Li+ and Na+, F−, and Tin+; forming a titanium plating film on the surface of the substrate by applying electric current to cause the substrate immersed in the molten-salt titanium plating solution composition to serve as a cathode and cause the surface of the substrate to be coated with titanium; cleaning the titanium plating film by bringing the titanium plating film into contact with a cleaning molten salt, the cleaning molten salt containing at least one compound selected from the group consisting of alkaline metal chloride, alkaline earth metal chloride, and potassium fluoride; and cleaning the titanium plating film with water.

1 . A method for manufacturing a titanium-plated member, the method comprising:
 preparing a substrate having an electrically conductive surface;   immersing the substrate in a molten-salt titanium plating solution composition containing ions of at least one Group I metal selected from the group of lithium and sodium, fluoride ions, and
 titanium ions; 
   forming a titanium plating film on the surface of the substrate by applying electric current to cause the substrate immersed in the molten-salt titanium plating solution composition to serve as a cathode and cause the surface of the substrate to be coated with titanium;   cleaning the titanium plating film by bringing the titanium plating film into contact with a cleaning molten salt, to remove a first adhering matter caused to adhere to a surface of the titanium plating film during the forming of the titanium plating film, the cleaning molten salt containing at least one compound selected from the group consisting of alkaline metal chloride, alkaline earth metal chloride, and potassium fluoride; and   cleaning the titanium plating film with water to remove a second adhering matter caused to adhere to the surface of the titanium plating film during the cleaning with the cleaning molten salt.   
     
     
         2 . The method for manufacturing a titanium-plated member according to  claim 1 , wherein in removing the first adhering matter, the titanium plating film is brought into contact with the cleaning molten salt by immersing, in the cleaning molten salt, the substrate on which the titanium plating film is formed. 
     
     
         3 . The method for manufacturing a titanium-plated member according to  claim 1 , wherein the molten-salt titanium plating solution composition further contains chloride ions. 
     
     
         4 . The method for manufacturing a titanium-plated member according to  claim 3 , wherein the molten-salt titanium plating solution composition contains more than or equal to 30 mol % and less than or equal to 50 mol % of the fluoride ions, with respect to 100 mol % of a total of the chloride ions and the fluoride ions. 
     
     
         5 . The method for manufacturing a titanium-plated member according to  claim 1 , wherein the molten-salt titanium plating solution composition contains more than or equal to 0.1 mol % and less than or equal to 12 mol % of the titanium ions with respect to 100 mol % of all cations contained in the molten-salt titanium plating solution composition. 
     
     
         6 . The method for manufacturing a titanium-plated member according to  claim 1 , wherein the titanium-plated member is an insoluble electrode. 
     
     
         7 . The method for manufacturing a titanium-plated member according to  claim 1 , wherein the titanium-plated member is a current collector. 
     
     
         8 . The method for manufacturing a titanium-plated member according to  claim 1 , wherein the titanium-plated member is a biomaterial.