| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery configured to prevent a member on a lid member from being burnt due to plume generated during welding, and a manufacturing method thereof.SOLUTION: A battery includes an external terminal member and an insulation member 180 arranged on an outer face of a lid member 113. A distance between insulation member 180 and the lid member 113 is smaller on a long side than on a short side of the lid member 113. A welding mark 160 formed from an outer face 113e of the lid member 113 to an opening end face of a battery case body 111 is formed on the whole circumference of the lid member 113. The welding mark 160 is formed not only on the outer face 113e of the lid member 113 and the opening end face of the battery case body 111, but also on an outside surface 111s of the battery case body 111, in a section facing the insulation member 180, on the long side of the lid member 113. In the other sections, the mark is formed from the outer face 113e of the lid member 113 to the opening end face of the battery case body 111, and not formed on the outside surface 111s of the battery case body 111. |
