Production method for lithium-ion battery member

A method of producing a lithium-ion battery member including an electrode composition layer that includes electrode active material particles and an electrolyte solution on a current collector or a separator, the method comprising:

• forming the electrode composition layer on a surface of a support different from either the current collector or the separator by pressure-molding by a roll pressing machine;
• and
• relocating the electrode composition layer from the surface of the support to the current collector or the separator by compressing the electrode composition layer on the current collector or the separator by a roll pressing machine to obtain a laminate of the support, the electrode composition layer, and the current collector or the separator, and by peeling the support from the electrode composition layer with the current collector or the electrode composition layer with the separator,
• wherein a weight percent of the electrolyte solution in the electrode composition layer is 10 wt % or less based on the weight of the electrode composition layer, in the forming the electrode composition layer on a surface of a support and in the relocating the electrode composition layer from the surface of the support to the current collector or the separator.