Battery pack and device including the same

Patent metadata

Field	Value
Publication number	US-12482876-B2
Application number	US-202117761708-A
Country	US
Kind code	B2
Filing date	Jul 9, 2021
Priority date	Jul 14, 2020
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

A battery pack according to one embodiment of the present disclosure may include a lower pack housing having a plurality of module regions, a thermal conductive resin layer applied to the lower pack housing within the module region, a plurality of battery cell stacks mounted in each of the plurality of module regions on the thermal conductive resin layer, and an upper pack housing for covering the plurality of battery cell stacks.

First claim

The invention claimed is:

1 . A battery pack comprising:
a lower pack housing having a plurality of module regions, a thermal conductive resin layer disposed within each of the plurality of module regions, the thermal conductive resin layer contacting a surface of each of the plurality of module regions, a plurality of battery cell stacks mounted in each of the plurality of module regions, the plurality of battery cell stacks contacting the thermal conductive resin layer, and an upper pack housing configured to cover the plurality of battery cell stacks.

2 . The battery pack of claim 1 , wherein the plurality of module regions are partitioned by a plurality of partition walls of the lower pack housing, each partition wall being located between adjacent battery cell stacks.

3 . The battery pack of claim 1 , wherein the thermal conductive resin layer comprises a first thermal conductive resin layer and a second thermal conductive resin layer, each of the plurality of module regions including a first region and a second region partitioned from each other by a partition wall, the first thermal conductive resin layer being disposed in the first region, and the second thermal conductive resin layer being disposed in the second region.

4 . The battery pack of claim 3 , wherein the first thermal conductive resin layer and the second thermal conductive resin layer do not contact each other.

5 . The battery pack of claim 3 , further including a thermal paste layer disposed on the plurality of battery cell stacks.

6 . The battery pack of claim 5 , wherein the thermal paste layer comprises an adhesive component that joins the upper pack housing and the battery cell stack.

7 . The battery pack of claim 6 , wherein the plurality of battery cell stacks include a first battery cell stack and a second battery cell stack, the first and second battery cell stacks being mounted in each of the first region and the second region of the plurality of module regions, a height of the partition wall being higher than a height of a side surface of the first battery cell stack and a height of a side surface of the second battery cell stack.

8 . The battery pack of claim 1 , wherein the plurality of battery cell stacks are stacked along a first direction, the plurality of battery cell stacks including an adhesive member located between battery cells adjacent to each other along the first direction.

9 . The battery pack of claim 1 , wherein the thermal conductive resin layer comprises an adhesive component that joins the lower pack housing and the plurality of battery cell stacks.

10 . The battery pack of claim 9 , further including a heat dissipation layer located between the lower pack housing and the thermal conductive resin layer.

11 . The battery pack of claim 1 , further comprising:
one or more electrode leads, each electrode lead protruding from a battery cell of the plurality of battery cell stacks, and an insulating cover for covering a front surface and a back surface of the plurality of battery cell stacks from which the electrode leads protrude, wherein the insulating cover faces the lower pack housing.

12 . The battery pack of claim 11 , wherein the insulating cover includes a terminal busbar opening, a terminal busbar extending through the terminal busbar opening, the terminal busbar opening being formed at an outer part of the insulating cover with reference to a stacking direction of the plurality of battery cells included in the battery cell stack.

13 . A device comprising the battery pack of claim 1 .

14 . A battery pack comprising:
a lower pack housing having a plurality of module regions, a thermal conductive resin layer disposed within each of the plurality of module regions, a plurality of battery cell stacks mounted in each of the plurality of module regions, the plurality of battery cell stacks contacting the thermal conductive resin layer, and an upper pack housing configured to cover the plurality of battery cell stacks, wherein the plurality of battery cell stacks are stacked along a first direction, the plurality of battery cell stacks including an adhesive member located between battery cells adjacent to each other along the first direction.

15 . A battery pack comprising:
a lower pack housing having a plurality of module regions, a thermal conductive resin layer disposed within each of the plurality of module regions, a plurality of battery cell stacks mounted in each of the plurality of module regions, the plurality of battery cell stacks contacting the thermal conductive resin layer, and an upper pack housing configured to cover the plurality of battery cell stacks, the battery pack further comprising: one or more electrode leads, each electrode lead protruding from a battery cell of the plurality of battery cell stacks, and an insulating cover for covering a front surface and a back surface of the plurality of battery cell stacks from which the electrode leads protrude, wherein the insulating cover faces the lower pack housing, wherein the insulating cover includes a terminal busbar opening, a terminal busbar extending through the terminal busbar opening, the terminal busbar opening being formed at an outer part of the insulating cover with reference to a stacking direction of the plurality of battery cells included in the battery cell stack.

Assignees

• Lg Energy Solution Ltd

Inventors

• Park Subin
• Seong Junyeob
• Park Won Kyoung

Classifications

• H01M50/204

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

• H01M50/505

  comprising a single busbar · CPC title

• H01M50/244

  Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method · CPC title

• H01M10/658

  by thermal insulation or shielding · CPC title

• H01M10/6551

  Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings · CPC title