Battery

摘要

A battery sealing member: has a power generating element, a case body member, a case lid member, and an electrode terminal member having an insert-through part inserted in a through-hole provided in the case lid member. The electrode terminal member is electrically connected to the power generating element. The battery sealing member is made of a synthetic resin and has a sealing part held between the electrode terminal member and the inner surface of the case lid member. The crystallinity of the sealing part of the sealing member is higher than the crystallinity of a portion other than the seal section.

主权项

1. A battery including: a power generating element; a case body member having an opening and enclosing the power generating element together with an electrolyte; a case lid member closing the opening of the case body member; an electrode terminal member having an insert-through part inserted in a through hole provided in the case lid member, the electrode terminal member being electrically connected to the power generating element; and
a battery sealing member being made of synthetic resin and including a sealing part held between the electrode terminal member and an inner surface of the case lid member, wherein the sealing part has a crystallinity higher than a crystallinity of another portion of the sealing member, the case lid member includes a protrusion surrounding the through hole and cylindrically protruding from an inner surface, and the sealing part is formed with a highly compressed portion pressed between the protrusion and the electrode terminal member.