Battery with spacer member for load resistance

1 . A battery comprising:

an electrode body;

a plurality of current collector tabs extending from a side surface portion of the electrode body;

a current collector terminal connected to the current collector tabs;

a laminate film housing the electrode body and the current collector tabs; and

a spacer member, wherein:

each of the current collector tabs includes a root portion that is an end portion on the electrode body side, a connection portion for connecting to the current collector terminal, and an intermediate portion connecting the root portion and the connection portion;

the current collector tabs include a laminated connection portion in which the respective connection portions of the current collector tabs are laminated in a thickness direction;

the current collector terminal includes an inner surface facing the side surface portion of the electrode body, and a side surface disposed along an outer edge of the inner surface;

the laminate film is disposed on the side surface of the current collector terminal;

a main surface of the laminated connection portion of the current collector tabs is joined to the inner surface of the current collector terminal;

the spacer member comprises a first spacer member and a second spacer member, each disposed in surface contact with the inner surface of the current collector terminal and the side surface portion of the electrode body; and

with respect to a plan view in a laminating direction of the electrode body, the current collector tabs are arranged between the first spacer member and the second spacer member.

2 . The battery according to claim 1 , wherein, in a sectional view in the laminating direction of the electrode body, each of the intermediate portions include a curved structure such that parts of each intermediate portion face each other.

3 . The battery according to claim 1 , wherein the spacer member is a resin member.

4 . The battery according to claim 1 , wherein:

the current collector terminal has an outer surface that is opposite to the inner surface, and the side surface is between the inner surface and the outer surface; and

the laminate film is only partially covering the side surface of the current collector terminal.

5 . The battery according to claim 1 , wherein the first spacer member and the second spacer member are disposed at either end of the side surface portion of the electrode body.