# US 2021/0242515 A1 · Battery Pack and Vehicle Including Battery Pack

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- Number: US 2021/0242515 A1
- Document ID: US20210242515A1
- Status: Published application
- Kind: A1
- Application number: 17/052,369
- Filed: 2019-08-26
- Published: 2021-08-05
- Earliest claimed: 2018-09-19
- Assignees: LG Chem, Ltd.
- Applicants: LG Chem, Ltd.
- Inventors: Su-Hang Lee; Kyu Hyun Choi; Ho-June Chi; Jee-Soon Choi
- Web page: https://patentgrep.com/patent/US20210242515A1

## CPC

- H01M 10/6554: Rods or plates
- H01M 50/242: adapted for protecting batteries against vibrations, collision impact or swelling
- H01M 10/613: Cooling or keeping cold
- H01M 10/625: Vehicles
- H01M 10/647: Prismatic or flat cells, e.g. pouch cells
- H01M 10/6556: Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552)
- H01M 10/6568: characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
- H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence)
- H01M 50/211: adapted for pouch cells
- H01M 50/227: Organic material
- H01M 50/249: specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64)
- H01M 50/289: characterised by spacing elements or positioning means within frames, racks or packs (spacing elements inside cells other than separators, membranes or diaphragms H01M50/471)
- H01M 50/35: Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
- 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 pack includes a plurality of battery cells, a pack case partitioning an interior volume into a plurality of accommodation spaces capable of accommodating at least portions of the plurality of battery cells, a cooling mat disposed to contact upper surfaces of the plurality of battery cells inside the pack case, and an air cushion disposed perpendicular to the cooling mat and mounted to inner walls of the pack case along a front and rear direction.

## Claims

### Claim 1

A battery pack, comprising:
a plurality of battery cells;
a pack case defining an interior volume and partitioning the interior volume into a plurality of accommodation spaces, each accommodation space capable of accommodating at least a portion of a respective one of the plurality of battery cells;
a cooling mat disposed to contact upper surfaces of the plurality of battery cells positioned inside the pack case; and
an air cushion oriented perpendicularly to the cooling mat and positioned along inner walls of the pack case in a front and rear direction.

### Claim 2 (depends on 1)

The battery pack according to claim 1,
wherein the pack case includes:
a base plate;
a front plate connected to a front side of the base plate;
a rear plate disposed opposite to the front plate and connected to a rear side of the base plate;
a pair of side plates connected to the base plate between the rear plate and the front plate, the pair of side plates being spaced apart from each other by a predetermined distance along a width direction, the width direction being orthogonal to the front and rear direction; and
a partition plate configured to partition the volume defined between the pair of side plates to define the accommodation spaces, the partition plate positioned between the front plate and the rear plate in the front and rear direction.

### Claim 3 (depends on 1)

The battery pack according to claim 1,
wherein the cooling mat includes:
a mat body configured to contact the upper surfaces of the plurality of battery cells; and
a cooling channel formed in the mat body so that a cooling liquid for cooling the plurality of battery cells flows therein.

### Claim 4 (depends on 3)

The battery pack according to claim 3,
wherein the mat body is made of a rubber material.

### Claim 5 (depends on 3)

The battery pack according to claim 3,
wherein the mat body includes a gas therein to buffer an external impact.

### Claim 6 (depends on 5)

The battery pack according to claim 5,
wherein the mat body has a gas injection hole defined therein to inject the gas into the mat body.

### Claim 7 (depends on 5)

The battery pack according to claim 5,
wherein the mat body has a venting hole unit for discharging the gas from the mat body when the gas is at a predetermined pressure or above.

### Claim 8 (depends on 1)

The battery pack according to claim 1,
wherein the air cushion has a gas injection hole for injecting a predetermined amount of gas into the air cushion.

### Claim 9 (depends on 1)

The battery pack according to claim 1,
wherein the air cushion has a venting hole unit for discharging the gas from the air cushion when the gas is at a predetermined pressure or above.

### Claim 10 (depends on 1)

The battery pack according to claim 1,
wherein the air cushion is made of a rubber material.

### Claim 11 (depends on 1)

A vehicle, comprising at least one battery pack according to claim 1.