Battery Pack

Patent metadata

Field	Value
Publication number	US-2022013828-A1
Application number	US-202117485823-A
Country	US
Kind code	A1
Filing date	Sep 27, 2021
Priority date	Mar 29, 2017
Publication date	Jan 13, 2022
Grant date	—

Abstract

Provided is a battery pack including: a first battery group in which a plurality of storage batteries having a battery can side surface and a battery can bottom surface linked to the battery can side surface are laminated so that the battery can side surfaces face each other; a second battery group in which a plurality of storage batteries having a battery can side surface and a battery can bottom surface linked to the battery can side surface are laminated so that the battery can side surfaces are face each other; and a case housing the first battery group and the second battery group, wherein the facing surfaces of the first battery group and the second battery group are directly or indirectly thermally connected to each other.

First claim

1 . A battery pack comprising:
a first battery group and a second battery group in each of which a plurality of storage batteries are laminated, with each storage battery formed in a cuboid composed of a pair of wide surfaces and narrow surfaces other than the pair of wide surfaces, so that the wide surfaces are placed to face each other; and a heat transfer member, wherein the narrow surfaces other than the pair of wide surfaces include:
a first narrow surface with an external terminal;
a second narrow surface opposite the first narrow surface; and
a third narrow surface as a side face other than the first narrow surface and the second narrow surface; and
wherein the first battery group and the second battery group are disposed in a case housing such that the third narrow surface of the first battery group and the third narrow surface of the second battery group face each other via the heat transfer member.

2 . A battery pack comprising:
a first battery group and a second battery group in each of which a plurality of storage batteries are laminated, with each storage battery formed in a cuboid composed of a pair of wide surfaces and narrow surfaces other than the pair of wide surfaces, so that the wide surfaces are placed to face each other; and a heat transfer member, wherein the narrow surfaces other than the pair of wide surfaces include:
a first narrow surface with an external terminal;
a second narrow surface opposite the first narrow surface; and
a third narrow surface as a side face other than the first narrow surface and the second narrow surface;
wherein the first battery group and the second battery group are disposed in a case housing such that the third narrow surface of the first battery group and the third narrow surface of the second battery group face each other via the heat transfer member; and wherein the storage batteries of the battery pack include a terminal for connecting the battery groups to equipment outside the batteries.

3 . The battery pack according to claim 1 ,
wherein the storage batteries of the first and second battery groups are connected to their adjacent storage batteries via a connecting member.

4 . The battery pack according to claim 1 ,
wherein the first narrow surface of the storage battery of the first battery group and the first narrow surface of the storage battery of the second battery group face the same side.

5 . The battery pack according to claim 1 ,
wherein the storage batteries are disposed with the wide surfaces facing the case housing.

6 . The battery pack according to claim 2 ,
wherein the storage batteries of the battery groups are connected to their adjacent storage batteries via a connecting member.

7 . The battery pack according to claim 2 ,
wherein the first narrow surface of the storage battery of the first battery group and the first narrow surface of the storage battery of the second battery group face the same side.

8 . The battery pack according to claim 2 ,
wherein the storage batteries are disposed with the wide surfaces facing the case housing.

9 . The battery pack according to claim 1 , further comprising:
a first external terminal for connecting the first battery group to an electronic circuit and a second external terminal for connecting the second battery group to the electronic circuit, wherein the first external terminal and the second external terminal are provided around a center of the battery pack.

10 . The battery pack according to claim 2 , further comprising:
a first external terminal for connecting the first battery group to an electronic circuit and a second external terminal for connecting the second battery group to the electronic circuit, wherein the first external terminal and the second external terminal are provided around a center of the battery pack.

Assignees

• Vehicle Energy Japan Inc

Inventors

• Oda Masanari
• Takahashi Hirofumi
• Makino Shigeki
• Sato Wataru
• Nishimori Hitoshi

Classifications

• H01M50/543

  Terminals · CPC title

• H01M50/289

  characterised by spacing elements or positioning means within frames, racks or packs (spacing elements inside cells other than separators, membranes or diaphragms H01M50/471) · CPC title

• H01M50/211

  adapted for pouch cells · CPC title

• H01M50/547

  characterised by the disposition of the terminals on the cells · CPC title

• H01M50/296

  characterised by terminals of battery packs (terminals of batteries H01M50/543) · CPC title