Battery module, battery pack comprising same, and vehicle

Patent metadata

Field	Value
Publication number	US-12494540-B2
Application number	US-202117776878-A
Country	US
Kind code	B2
Filing date	May 14, 2021
Priority date	May 19, 2020
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

Disclosed is a battery module having a reinforcement member to reinforce the mechanical strength of a module case. To achieve the above-described object, the battery module according to the present disclosure includes a plurality of secondary batteries arranged in at least one direction, a module case including a cover portion, a bottom portion, and a side portion to define an internal space in which the plurality of secondary batteries is disposed, and a reinforcement member disposed in the module case and fixed to a lower surface of the cover portion and an upper surface of the bottom portion.

First claim

What is claimed is:

1 . A battery module, comprising:
a plurality of secondary batteries arranged in at least one direction; a module case including a cover portion, a bottom portion, and a side portion to define an internal space in which the plurality of secondary batteries is disposed; a reinforcement member disposed in the module case and fixed to a lower surface of the cover portion and an upper surface of the bottom portion, and an adhesive member configured to fix the reinforcement member to at least one of the lower surface of the cover portion of the module case, the upper surface of the bottom portion, and an inner surface of the side portion, wherein the reinforcement member includes:
a body portion extending in a direction; and
a bent portion bent in contact with an inner side surface of the module case at each of two ends of the body portion and attached to the inner side surface of the module case by the adhesive member, and
wherein the reinforcement member includes:
a receiving groove recessed in an inward direction at a part of the body portion in which the adhesive member is filled; and
a coupling hole that is open at a part of the bent portion to accommodate the adhesive member.

2 . The battery module according to claim 1 , wherein the plurality of secondary batteries is spaced apart a predetermined distance from each other, and
wherein the reinforcement member has a plate shape extending in a horizontal direction along the side of the plurality of secondary batteries, and at least part of the reinforcement member has a curved shape protruding toward a spacing of the plurality of secondary batteries.

3 . The battery module according to claim 2 , wherein the adhesive member includes a protrusion filled in the spacing of the plurality of secondary batteries.

4 . The battery module according to claim 1 , wherein the reinforcement member includes a pair of plates extending in a direction and spaced apart from each other to define an internal space between the pair of plates, and
wherein the adhesive member is filled in between the pair of plates.

5 . The battery module according to claim 4 , wherein each of the pair of plates has an opening such that the internal space between the pair of plates is in communication with outside.

6 . A battery pack comprising at least one battery module according to claim 1 .

7 . A vehicle comprising the battery pack according to claim 6 .

8 . The battery module according to claim 2 , wherein the curved shape has an alternating curved shape protruding toward a spacing of the plurality of secondary batteries in correspondence with the sides of the plurality of secondary batteries.

Assignees

• Lg Energy Solution Ltd

Inventors

• Choi bum
• Keum Jong-Yoon
• Choi Jong-Chul

Classifications

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M50/213

  adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) · CPC title

• H01M50/249 Primary

  specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64) · CPC title

• B60L50/64

  Constructional details of batteries specially adapted for electric vehicles · CPC title

• Y02T10/70

  Energy storage systems for electromobility, e.g. batteries · CPC title