# US 12,183,936 B2 · Battery pack and vehicle comprising same battery pack

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- Number: US 12,183,936 B2
- Document ID: US12183936B2
- Status: Granted
- Kind: B2
- Application number: 17/260,751
- Filed: 2019-11-07
- Published: 2021-09-23
- Granted: 2024-12-31
- Earliest claimed: 2018-12-18
- Assignees: LG Energy Solution, Ltd.
- Applicants: LG Chem, Ltd.
- Inventors: Eun-Ah Ju; Dal-Mo Kang; Jeong-O Mun; Sung-Won Seo; Yoon-Koo Lee
- Web page: https://patentgrep.com/patent/US12183936B2

## CPC

- B60L 50/64: Constructional details of batteries specially adapted for electric vehicles
- H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence)
- B60L 50/66: {Arrangements of batteries}
- H01M 10/0468: {Compression means for stacks of electrodes and separators}
- H01M 50/105: Pouches or flexible bags
- H01M 50/211: adapted for pouch cells
- H01M 50/233: characterised by physical properties of casings or racks, e.g. dimensions
- H01M 50/242: adapted for protecting batteries against vibrations, collision impact or swelling
- H01M 50/244: Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
- 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 50/258: Modular batteries; Casings provided with means for assembling
- H01M 50/262: with fastening means, e.g. locks
- 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 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane
- Y02E 60/10: Energy storage using batteries
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- 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
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

Discussed is a battery pack including: a battery module assembly including a plurality of battery modules including a plurality of battery cells; a pack tray on which the battery module assembly is accommodated; and a tray bar arranged on at least one side edge of the pack tray.

## Claims

### Claim 1

A battery pack comprising:
a battery module assembly comprising a plurality of battery modules including a plurality of battery cells;
a pack tray on which the battery module assembly is accommodated;
a tray bar arranged on at least one side edge of the pack tray, wherein the tray bar comprises a plurality of tray bars provided to face the plurality of battery modules at opposite outermost sides of the battery module assembly; and
a plurality of tolerance compensation members having rigidity ribs and provided between the plurality of battery modules at the opposite outermost sides of the battery module assembly and the plurality of tray bars,
wherein each of the plurality of tolerance compensation members comprises:
a shim part arranged in contact with the plurality of battery modules at the opposite outermost sides of the battery module assembly and the plurality of tray bars; and
an accommodating part bent from an upper end of the shim part and accommodated on an upper side of the plurality of tray bars.

### Claim 2 (depends on 1)

The battery pack of claim 1, wherein the plurality of tolerance compensation members are forcibly fitted between the plurality of battery modules at the opposite outermost sides of the battery module assembly and the plurality of tray bars.

### Claim 3 (depends on 1)

The battery pack of claim 1, wherein each of the plurality of tray bars comprises:
a bar main body supported on the pack tray;
a first support portion bent from the bar main body and configured to support the plurality of tolerance compensation members; and
a second support portion arranged between a bottom of the bar main body and the first support portion to support a bottom portion of the first support portion.

### Claim 4 (depends on 1)

The battery pack of claim 1, wherein each of the plurality of tolerance compensation members comprises a protruding part protruding from the accommodating part towards the plurality of tray bars.

### Claim 5 (depends on 4)

The battery pack of claim 4, wherein the protruding part includes a curved portion that extends away from the accommodating part.

### Claim 6 (depends on 4)

The battery pack of claim 4, wherein the first support portion comprises a plurality of combining grooves into which the protruding part of each of the plurality of tolerance compensation members is inserted.

### Claim 7 (depends on 6)

The battery pack of claim 6, wherein the plurality of combining grooves extends in a direction that intersects an extending direction of the bar main body.

### Claim 8 (depends on 1)

The battery pack of claim 1, wherein the plurality of battery modules of the battery module assembly are arranged in close contact with each other inside the pack tray.

### Claim 9 (depends on 1)

The battery pack of claim 1, wherein each of the plurality of battery cells is provided as a pouch type secondary battery, and
wherein the plurality of battery cells of each of the plurality of battery modules are arranged in close contact with each other.

### Claim 10 (depends on 1)

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

### Claim 11 (depends on 1)

The battery pack of claim 1, wherein the plurality of tolerance compensation members are provided only between the plurality of battery modules and the plurality of tray bars.

### Claim 12 (depends on 1)

The battery pack of claim 1, wherein the battery pack lacks crush beams between the plurality of battery modules.

### Claim 13 (depends on 1)

The battery pack of claim 1, wherein the rigidity ribs are formed on one surface of each tolerance compensation member facing a corresponding one of the plurality of tray bars.
