# US 12,603,349 B2 · Battery module and battery pack including the same

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- Number: US 12,603,349 B2
- Document ID: US12603349B2
- Status: Granted
- Kind: B2
- Application number: 17/913,098
- Filed: 2021-08-09
- Published: 2023-05-04
- Granted: 2026-04-14
- Earliest claimed: 2020-09-21
- Assignees: LG Energy Solution, Ltd.
- Applicants: LG Energy Solution, Ltd.
- Inventors: Sangki Lee; Bumhee Lee; Jong Cheol Lee; Dohyeok Kang; Dajin Lee
- Web page: https://patentgrep.com/patent/US12603349B2

## CPC

- H01M 10/617: for achieving uniformity or desired distribution of temperature
- H01M 10/655: Solid structures for heat exchange or heat conduction
- H01M 10/647: Prismatic or flat cells, e.g. pouch cells
- H01M 10/653: characterised by electrically insulating or thermally conductive materials
- H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells
- H01M 50/211: adapted for pouch cells
- H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane
- Y02E 60/10: Energy storage using batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A battery module including: a battery cell stack including a plurality of battery cells; a housing for the battery cell stack; and a heat conductive resin layer formed on the bottom part of the housing. The heat conductive resin layer includes a first heat conductive resin layer and a second heat conductive resin layer. The first heat conductive resin layer is formed adjacent to the front surface of the battery cell stack, and the second heat conductive resin layer is formed adjacent to the rear surface of the battery cell stack, and at least a part of the first heat conductive resin layer and at least a part of the second heat conductive resin layer are spaced apart from each other.

## Claims

### Claim 1

A battery module comprising:
a battery cell stack comprising a plurality of battery cells;
a housing for the battery cell stack; and
a heat conductive resin layer on a bottom part of the housing,
wherein the heat conductive resin layer comprises a first heat conductive resin layer and a second heat conductive resin layer,
wherein the first heat conductive resin layer is adjacent to a front surface of the battery cell stack, and the second heat conductive resin layer is adjacent to a rear surface of the battery cell stack,
wherein at least a part of the first heat conductive resin layer and at least a part of the second heat conductive resin layer are spaced apart from each other,
wherein a first distance between the first heat conductive resin layer and the second heat conductive resin layer differs depending on a position of the first and second heat conducting resin layers on the bottom part of the housing, and
wherein the first distance increases from a center of the bottom part of the housing toward an outside of the battery module.

### Claim 2 (depends on 1)

The battery module according to claim 1, wherein:
the first heat conductive resin layer and the second heat conductive resin layer have equal width, and the first heat conductive resin layer and the second heat conductive resin layer are spaced apart from each other.

### Claim 3 (depends on 1)

The battery module according to claim 1, wherein:
the first heat conductive resin layer and the second heat conductive resin layer at a position corresponding to the center of the bottom surface of the housing are in contact with each other.

### Claim 4 (depends on 1)

The battery module according to claim 1, wherein:
the first heat conductive resin layer and the second heat conductive resin layer at a position corresponding to the center of the bottom surface of the housing are spaced apart from each other.

### Claim 5 (depends on 1)

The battery module according to claim 1, wherein:
the first heat conductive resin layer and the second heat conductive resin layer are symmetrical in a longitudinal direction of the housing.

### Claim 6 (depends on 1)

The battery module according to claim 1, wherein:
the first heat conductive resin layer and the second heat conductive resin layer are symmetrical in a width direction of the housing.

### Claim 7 (depends on 1)

The battery module according to claim 1, wherein:
the first heat conductive resin layer and the second heat conductive resin layer comprise the same heat conductive resin material.

### Claim 8 (depends on 1)

The battery module according to claim 1, wherein:
the housing comprises a lower frame and an upper plate,
the lower frame covers a lower surface and both side surfaces of the battery cell stack, and
the upper plate covers an upper surface of the battery cell stack.

### Claim 9 (depends on 1)

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