Battery module and battery pack including the same

Patent metadata

Field	Value
Publication number	US-12573697-B2
Application number	US-202117908499-A
Country	US
Kind code	B2
Filing date	Oct 19, 2021
Priority date	Nov 30, 2020
Publication date	Mar 10, 2026
Grant date	Mar 10, 2026

Abstract

A battery module including a battery cell stack, a busbar frame that is positioned in at least one end part of the battery cell stack, a housing that houses a cell block including the battery cell stack and the busbar frame, a pair of end plates that cover the front and rear surfaces of the cell block and are coupled to the housing, and an insulating cover that is positioned between the end plate and the battery cell stack. The insulating cover includes a first insulating cover and a second insulating cover. The first insulating cover covers the first busbar coupled to the busbar frame, and the second insulating cover covers the second busbar coupled to the busbar frame.

First claim

The invention claimed is:

1 . A battery module comprising:
a battery cell stack comprising a plurality of battery cells, a busbar frame positioned on at least one end part of the battery cell stack, a housing comprising a cell block, wherein the cell block comprises the battery cell stack and the busbar frame, a pair of end plates covering the front and rear surfaces of the cell block, wherein each of the pair of end plates is coupled to the housing, and a pair of insulating covers comprising a first insulating cover and a second insulating cover, wherein each of the first and second insulating covers is between a same one of the pair of end plates and the battery cell stack, wherein the first insulating cover covers a first busbar coupled to the busbar frame, the second insulating cover covers a second busbar coupled to the busbar frame.

2 . The battery module according to claim 1 , wherein:
the first busbar has a larger area than the second busbar.

3 . The battery module according to claim 2 , wherein:
the second busbar is a terminal busbar.

4 . The battery module according to claim 3 , wherein:
the insulating cover further comprises a third insulating cover, and the third insulating cover is positioned at a lower end of a protrusion part formed at one end of the terminal busbar.

5 . The battery module according to claim 1 , wherein:
the first insulating cover and the second insulating cover shield a space between the first busbar and the second busbar from the first busbar and the second busbar, respectively.

6 . The battery module according to claim 1 , wherein:
the first insulating cover and the second insulating cover are coupled to the busbar frame.

7 . The battery module according to claim 6 , further comprising:
an adhesive, wherein the adhesive connects the first insulating cover and the second insulating cover to the busbar frame.

8 . The battery module according to claim 6 , further comprising:
a fastening member, wherein the fastening member connects the first insulating cover and the second insulating cover to the busbar frame.

9 . The battery module according to claim 1 , further comprising:
an adhesive, wherein the adhesive connects the first insulating cover and the second insulating cover to each of the pair of end plates, respectively.

10 . A battery pack comprising the battery module according to claim 1 .

Assignees

• Lg Energy Solution Ltd

Inventors

• Jung Seyun
• Lee Jongyoung
• Oh Jong Ryeol
• Lee Beak San

Classifications

• H01M50/507

  comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules · CPC title

• H01M50/262

  with fastening means, e.g. locks · CPC title

• H01M50/502

  Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing · CPC title

• H01M50/24

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

• H01M50/593

  Spacers; Insulating plates · CPC title