Battery module

Patent metadata

Field	Value
Publication number	US-2025309433-A1
Application number	US-202519090393-A
Country	US
Kind code	A1
Filing date	Mar 26, 2025
Priority date	Mar 29, 2024
Publication date	Oct 2, 2025
Grant date	—

Abstract

The present disclosure relates to a battery module including: a plurality of battery cells; a busbar assembly disposed on one side of the plurality of battery cells and connected to the plurality of battery cells; and a protective member disposed on at least a portion of one side of the busbar assembly facing the plurality of battery cells.

First claim

What is claimed is:

1 . A battery module comprising:
a plurality of battery cells; a bus bar assembly disposed on one side of the plurality of battery cells and connected to the plurality of battery cells; and a protective member disposed on at least a portion of one side of the busbar assembly facing the plurality of battery cells.

2 . The battery module according to claim 1 , further comprising a fire-resistant member disposed in an accommodation space formed by an electrode lead protruding from the plurality of battery cells, the plurality of battery cells, and the busbar assembly.

3 . The battery module according to claim 2 , wherein the fire-resistant member has a columnar shape.

4 . The battery module according to claim 2 , wherein the fire-resistant member includes a plurality of granular materials.

5 . The battery module according to claim 1 , wherein the busbar assembly includes:
a busbar electrically connected to the plurality of battery cells; and a busbar frame disposed between the busbar and the plurality of battery cells and supporting the busbar, wherein a thickness of the protective member is smaller than a thickness of the busbar frame or the busbar.

6 . The battery module according to claim 5 , wherein a melting point of the protective member is greater than a melting point of the busbar frame.

7 . The battery module according to claim 5 , wherein the busbar frame includes a partition wall protruding from the one side of the busbar assembly facing the plurality of battery cells toward the plurality of battery cells, and
wherein the protective member is disposed on one side of the busbar assembly opposite to the plurality of battery cells, between the partition wall.

8 . The battery module according to claim 7 , wherein the protective member includes a plurality of protective units covering the one side of the busbar assembly opposite to the plurality of battery cells and spaced apart from each other with the partition wall interposed therebetween.

9 . The battery module according to claim 7 , wherein the protective member covers at least a portion of the partition wall.

10 . The battery module according to claim 9 , wherein the protective member includes a bent portion bent along the partition wall.

11 . The battery module according to claim 7 , further comprising a blocking member disposed in at least a portion of the plurality of battery cells,
wherein the blocking member is inserted between the partition wall.

12 . The battery module according to claim 1 , wherein the protective member is attached to the one side of the busbar assembly.

13 . The battery module according to claim 1 , wherein the protective member includes a fire-resistant material.

14 . The battery module according to claim 1 , wherein the protective member is injected to the one side of the busbar assembly.

15 . The battery module according to claim 1 , wherein the busbar assembly includes:
a busbar electrically connected to the plurality of battery cells; and a busbar frame disposed between the busbar and the plurality of battery cells and supporting the busbar, wherein the plurality of battery cells are stacked in a first direction, wherein the busbar and the busbar frame are combined in a second direction perpendicular to the first direction, and wherein a length of the protective member is greater than a length of the busbar in a third direction perpendicular to the first direction and the second direction.

16 . The battery module according to claim 1 , further comprising:
a module body accommodating the plurality of battery cells, the busbar assembly, and the protective member, and including an opening on one side; and a module cover combined to the module body to close the opening.

Assignees

• Sk On Co Ltd

Inventors

• Lee Gang U
• Kim Jeong Won
• Na Chae Won
• Noh Yun Joo
• Han Kyu Hyun
• Hwang Won Gab

Classifications

• A62C3/16

  in electrical installations, e.g. cableways · CPC title

• H01M10/655

  Solid structures for heat exchange or heat conduction · CPC title

• H01M50/505

  comprising a single busbar · CPC title

• H01M10/613 Primary

  Cooling or keeping cold · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title