BATTERY

摘要

A battery provided according to the invention includes an electrode body including a positive electrode and a negative electrode, and a battery case. A positive electrode inner terminal is connected to the positive electrode, and a negative electrode inner terminal is connected to the negative electrode. The battery includes, inside the battery case, a first film placed between the electrode body and an inner wall of the battery case, and a second film placed between the battery case and at least one of the negative electrode inner terminal and the positive electrode inner terminal. By the first film and the second film, at least one of the negative electrode inner terminal and the positive electrode inner terminal is insulated from the inner wall of the battery case, and the electrode body is insulated from the inner wall of the battery case.

主权项

1. A battery comprising:
an electrode body including a positive electrode and a negative electrode; and a battery case that accommodates the electrode body, wherein: the battery case includes a battery case main body having an opening through which the electrode body is accommodated, and a cover that closes the opening of the battery case main body; a positive electrode external terminal and a negative electrode external terminal are provided on an outer surface of the cover, the outer surface being placed outside the battery case; a positive electrode inner terminal connected to the positive electrode of the electrode body and a negative electrode inner terminal connected to the negative electrode of the electrode body are placed inside the battery case; the positive electrode inner terminal and the positive electrode external terminal are electrically connected to each other and the negative electrode inner terminal and the negative electrode external terminal are electrically connected to each other; the battery includes, inside the battery case, a first film that is insulative and placed between the electrode body and an inner wall of the battery case main body, and a second film that is insulative and placed between the inner wall of the battery case main body and at least one of the negative electrode inner terminal and the positive electrode inner terminal; and by placing the first film and the second film as such, the electrode body is insulated from the inner wall of the battery case main body, and the at least one of the negative electrode inner terminal and the positive electrode inner terminal is insulated from the inner wall of the battery case main body.