JP2014179228A5

JP2014179228A5 -

Info

Publication number: JP2014179228A5
Application number: JP2013052127A
Authority: JP
Filing date: 2013-03-14
Publication date: 2015-05-07
Anticipated expiration: 2033-03-14

Description

本発明による組電池は、電池容器および蓋を有し、電池容器の表面に電池容器の厚み方向に対向する一対の幅広面を有する複数の扁平形電池と、隣り合う扁平形電池の幅広面同士を互いに向かい合わせて積層し、所定の圧縮力を付与した状態で扁平形電池を複数保持する保持部材と、幅広面の一部を除いて電池容器の外周を覆う外装絶縁フィルムとを備え、幅広面には、外装絶縁フィルムが蓋から電池容器の底面方向にかけて離間して複数箇所に配置され、外装絶縁フィルムで覆われていない非保護部が形成され、保持部材は、隣り合う扁平形電池同士で互いに向かい合った幅広面同士の間に設けられて、非保護部に当接部で当接するスペーサを有することを特徴とする。 Assembled battery according to the present invention has a battery container and a lid, a plurality of flat-shaped battery having a pair of wide surfaces facing in the thickness direction of the battery container on the surface of the battery container, the wide surface of the flat-shaped battery adjacent to each other the facing and laminated together, comprising: a holding member for holding a plurality of flat-shaped battery while applying a predetermined compressive force, and an exterior insulating film covering the outer periphery of the battery container, except for some of the wide surfaces, wide on the surface, are arranged in a plurality of locations exterior insulation film is separated toward the bottom surface direction of the battery container from the lid, is formed unprotected portion which is not covered with the outer insulating film, the holding member is flat-shaped battery adjacent to each other And a spacer which is provided between the wide surfaces facing each other and abuts against the non-protection portion at the abutment portion.

Claims

Having a battery container and a lid, a plurality of flat-shaped battery having a pair of wide surface facing the thickness direction of the battery case on the surface of the battery container,
The wide faces of the flat-shaped battery adjacent facing laminated to each other, a holding member for holding a plurality of the flat-shaped battery while applying a predetermined compressive force,
An exterior insulating film covering an outer periphery of the battery container except for a part of the wide surface;
In the wide surface, the exterior insulating film is arranged at a plurality of locations apart from the lid toward the bottom surface of the battery container, and a non-protection portion that is not covered with the exterior insulation film is formed.
The holding member is provided between the wide faces that face each other in the flat-shaped battery adjacent, assembled battery characterized by having a contact with the spacer to the unprotected portion with abutment.

The assembled battery according to claim 1,
The assembled battery, wherein the exterior insulating film is provided apart from the contact portion.

The assembled battery according to claim 2,
The assembled battery according to claim 1, wherein the spacer includes a protective portion covered with the exterior insulating film on the wide surface and an overlapping portion overlapping with the exterior insulating film.

The assembled battery according to claim 3,
The assembled battery according to claim 1, wherein the spacer includes a gradually decreasing portion between which the thickness gradually decreases as the distance from the abutting portion increases between the overlapping portion and the abutting portion.

The assembled battery according to claim 4,
The assembled battery is characterized in that a surface of the gradually decreasing portion is a flat surface or a curved surface.

In the assembled battery as described in any one of Claims 3-5,
The battery pack is characterized in that the overlapping portion has a film contact surface that comes into contact with the exterior insulating film.

The assembled battery according to claim 2,
The assembled battery, wherein the non-protection part is covered with an insulating resin between the contact part and the exterior insulating film.