Secondary battery

Abstract

A secondary battery includes an outer package member and a battery device. The outer package member has a top part and a bottom part. The top part has a through hole extending in a first direction. The bottom part is disposed to be opposed to the top part in the first direction. The battery device is contained inside the outer package member. The battery device includes a stacked body. The stacked body includes a first electrode and a second electrode, and is wound around an internal space extending in the first direction. The battery device includes an outer wind part and an inner wind part. The outer wind part is sandwiched between the top part and the bottom part in the first direction. The inner wind part is located between the internal space and the outer wind part, and opposed to the through hole in the first direction.

Dependencies are inferred from the claim text.