METHOD FOR MANUFACTURING CELL

A method for manufacturing a cell includes the steps of: preparing a housing portion having an opening; preparing a lid portion that includes a plate portion, a first external terminal located on the plate portion, and a second external terminal located on the plate portion at a position away from the first external terminal; placing the lid portion in the housing portion in such a manner that the plate portion closes the opening; placing a jig on an inter-terminal region of the plate portion that is located between the first external terminal and the second external terminal; and sealing the opening by joining the plate portion with the jig placed thereon and the housing portion together by welding.