Battery module, battery pack including the same, and automobile including the same

The battery module design with a cell cover and vent hole protrusions manages thermal events by slowing pressure rise and directing gases away, preventing collapse and explosion, thus containing thermal damage.

JP7789914B2Active Publication Date: 2025-12-22LG ENERGY SOLUTION LTD
View PDF 8 Cites 0 Cited by

Patent Information

Application Number
JP2024527223
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2023-05-19
Filing Date
2023-07-10
Publication Date
2025-12-22
Estimated Expiration
2043-07-10

AI Technical Summary

Technical Problem

Lithium secondary batteries in battery modules and packs are prone to rapid pressure increases and potential collapse or explosion during thermal events, posing risks of fire spread and secondary damage.

Method used

A battery module design featuring pouch-type cells housed in a module case with vent holes, supported by a cell cover that includes protrusions inserted into these holes to manage pressure and direct venting of gases and particles away from adjacent cells.

Benefits of technology

The design slows pressure rise and safely directs vent gases, preventing module collapse and explosion, thereby containing thermal damage to adjacent cells.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 0007789914000001
    Figure 0007789914000001
  • Figure 0007789914000002
    Figure 0007789914000002
  • Figure 0007789914000003
    Figure 0007789914000003
Patent Text Reader

Abstract

A battery module, a battery pack including the battery module, and a vehicle including the battery module are disclosed. The battery module according to an embodiment of the present invention includes a plurality of pouch-type battery cells, a module case in which the plurality of pouch-type battery cells are housed and in which a vent hole is formed, and a cell cover that at least partially encloses and supports at least one of the plurality of pouch-type battery cells in an internal space of the module case, and at least a portion of the cell cover is inserted into the vent hole.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Battery module and battery pack

    JP2005322434A

  • Battery module

    JP2016110881A

  • Battery pack

    JP2017134952A

  • Battery and its thermal management device, and UAV having this battery

    JP2017504149A

  • Battery device

    US20170077567A1