| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery which is capable of suppressing intrusion of a lead part into an electrode bundle even when the lead part is deformed by an external impact.SOLUTION: A battery case (50) as an exterior member of a battery (10) has, at least at those positions of side end surfaces (50a, 50b) thereof which do not overlap leads parts (32, 42), fragile portions (51) having lower rigidity than the other portions of the battery case (50). |
