METHOD FOR MANUFACTURING BATTERY MODULE, AND ROTATING BODY

A method for manufacturing a battery module is provided. The battery module includes a stacked body in which units are stacked with interposed insulating sheets. Each unit includes a first cell group and a second cell group, and a temperature control plate. The method includes: disposing the insulating sheet on a surface of one cell group of the first cell group and the second cell group on a side opposite to a temperature control plate side in each unit; and moving a rotating body including a rotation shaft along the first direction and recesses and protrusions alternately provided on an outer periphery along a circumferential direction in the second direction while rolling along the surface of the one cell group in a state where the outer periphery is pressed against a corresponding one of the insulating sheets from a side opposite to a one cell group side.