Surface-treated steel sheet, metal container, and method for producing surface-treated steel sheet

A method for producing a surface-treated steel sheet comprising:

• forming a phosphate compound layer on a tin-plated steel sheet by means of cathode electrolytic treatment, wherein the tin-plated steel sheet is obtained by tin-plating a steel sheet;
• and
• forming an aluminum-oxygen compound layer on the phosphate compound layer by means of electrolytic treatment using an electrolytic treatment liquid containing aluminum,
• wherein the electrolytic treatment liquid has a phosphate content of 0.11 g/L or less in terms of phosphorus atom and an aluminum ion content of 1 to 10 g/L in terms of aluminum atom,
• the electrolytic treatment for forming the aluminum-oxygen compound layer is performed by an intermittent electrolysis method where a cycle of energization and stop of energization is repeated, and
• a total energization time for forming the aluminum-oxygen compound layer is 1.5 seconds or less.