Battery Pack And Device Including The Same

Patent metadata

Field	Value
Publication number	US-2025201961-A1
Application number	US-202519065331-A
Country	US
Kind code	A1
Filing date	Feb 27, 2025
Priority date	Jun 22, 2020
Publication date	Jun 19, 2025
Grant date	—

Abstract

A battery pack includes: a lower pack housing having a plurality of module regions; a plurality of thermally conductive resin layers disposed in respective ones of the plurality of module regions; and a plurality of cell blocks mounted on respective ones of the plurality of module regions at an upper side of the respective thermally conductive resin layer, wherein each of the plurality of cell blocks includes: a battery cell stack in which a plurality of battery cells are stacked; and an insulator that surrounds the battery cell stack.

First claim

1 . A battery pack comprising:
a lower pack housing having a plurality of module regions; a plurality of thermally conductive resin layers disposed in respective ones of the plurality of module regions; and a plurality of cell blocks mounted on respective ones of the plurality of module regions at an upper side of the respective thermally conductive resin layer, wherein each of the plurality of cell blocks comprises: a battery cell stack in which a plurality of battery cells are stacked; and an insulator that surrounds the battery cell stack, and wherein in each of the plurality of cell blocks, side surface plates are located between respective side surfaces of the battery cell stack and the insulator.

2 . The battery pack according to claim 1 ,
wherein the side surface plates extending along a direction transverse to the stacking direction of the battery cells.

3 . The battery pack according to claim 1 ,
wherein the side plates are placed perpendicular to the stacking direction of the battery cells.

4 . The battery pack according to claim 1 ,
wherein the upper and lower surfaces of the battery cell stack are in contact with the insulator.

5 . The battery pack according to claim 4 ,
wherein one side of the side surface plates in contact with the respective side surfaces of the battery cell stack, and the other side of the side surface plate is in contact with the insulator.

6 . The battery pack according to claim 1 ,
wherein the side surface plates are elastic.

7 . The battery pack according to claim 6 ,
wherein the side surface plates are comprised of a rubber.

8 . The battery pack according to claim 1 ,
wherein the side surface plates are formed by injection.

9 . The battery pack according to claim 1 ,
which further comprises an upper pack housing that covers an upper portion of the plurality of cell blocks.

10 . The battery pack according to claim 1 ,
wherein in each of the plurality of cell blocks, the insulator covers upper, lower, left and right surfaces of the battery cell stack except for a portion in which an electrode lead is disposed in the battery cell stack.

11 . The battery pack according to claim 1 ,
wherein in at least one of the plurality of cell blocks, the insulator is a heat shrinkage tube.

12 . The battery pack according to claim 1 ,
wherein in at least one of the plurality of cell blocks, the insulator is an insulating tape.

13 . A device comprising the battery pack as set forth in claim 1 .

Assignees

• Lg Energy Solution Ltd

Inventors

• Park Subin
• Seong Junyeob
• Park Won Kyoung

Classifications

• H01M10/647

  Prismatic or flat cells, e.g. pouch cells · CPC title

• H01M50/24 Primary

  adapted for protecting batteries from their environment, e.g. from corrosion (thermal insulation H01M10/658) · CPC title

• H01M50/204 Primary

  Racks, modules or packs for multiple batteries or multiple cells · CPC title

• H01M50/533

  characterised by the shape of the leads or tabs · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title