Lead-acid battery, manufacturing method of the same, and lid member for lead-acid battery

摘要

A lead-acid battery (10) includes: an element (30), a container (20) accommodating the element (30); a lid member (50) having a rib (61) joined to an outer wall (21) of the container (20) and sealing an opening of the container (20); an outer peripheral wall (55) provided at the lid member (50), located to be spaced apart from the rib (61), and surrounding the outer wall (21) of the container (20); and a strain regulating piece (75) functioning as a spacer located between the outer wall (21) of the container (20) and the outer peripheral wall (55) of the lid member (50).