# US 2019/0379093 A1 · Coolant cooling type battery

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- Number: US 2019/0379093 A1
- Document ID: US20190379093A1
- Status: Published application
- Kind: A1
- Application number: 16/172,806
- Filed: 2018-10-28
- Published: 2019-12-12
- Earliest claimed: 2018-06-12
- Assignees: Hyundai Motor Company; Kia Motors Corporation
- Applicants: Hyundai Motor Company; Kia Motors Corporation
- Inventors: Jun Seok Choi; Yong Jae Kim
- Web page: https://patentgrep.com/patent/US20190379093A1

## CPC

- H01M 10/613: Cooling or keeping cold
- H01M 10/625: Vehicles
- H01M 10/647: Prismatic or flat cells, e.g. pouch cells
- H01M 10/6553: Terminals or leads
- H01M 10/6554: Rods or plates
- H01M 10/6556: Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552)
- H01M 10/6557: arranged between the cells
- H01M 50/507: comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
- H01M 50/516: by welding, soldering or brazing
- H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence)
- H01M 50/522: Inorganic material
- 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 coolant cooling type battery is provided. The coolant cooling type battery includes battery cells each having tabs to electrically connect the battery cells to each other by respective tabs. The respective tabs of the battery cells are arranged in a unidirectional alignment. Additionally, the battery includes busbars each interconnecting the tabs of adjacent battery cells of the multiple battery cells with each other to form an electrical connection between the battery cells and a coolant channel that is connected to the multiple busbars and has coolant flowing therein.

## Claims

### Claim 1

A coolant cooling type battery, comprising:
a plurality of battery cells each having tabs to electrically connect the battery cells to each other by respective tabs, wherein the respective tabs of the plurality of battery cells are arranged in a unidirectional alignment;
a plurality of busbars each interconnecting the tabs of adjacent battery cells of the plurality of battery cells with each other to form an electrical connection between the battery cells; and
a coolant channel connected to the multiple busbars and having coolant flowing therein.

### Claim 2 (depends on 1)

The battery of claim 1, further comprising:
a planar-shaped busbar housing having the plurality of busbars attached to a lower surface thereof,
wherein the coolant channel is attached to an upper surface of the busbar housing.

### Claim 3 (depends on 2)

The battery of claim 2, wherein the busbar housing is made of a plastic material.

### Claim 4 (depends on 2)

The battery of claim 2, wherein the coolant channel is made of a same material as the busbar housing.

### Claim 5 (depends on 2)

The battery of claim 2, wherein the busbar housing includes an opening through which the busbar is exposed upward outside a top of the busbar housing.

### Claim 6 (depends on 5)

The battery of claim 5, wherein welding energy is emitted to a top of the busbar exposed through the opening to weld the busbar and the tabs positioned under the busbar together.

### Claim 7

A coolant cooling type battery, comprising:
a plurality of battery cells each having tabs to electrically connect the battery cells to each other by respective tabs, wherein the respective tabs of the plurality of battery cells are arranged in a unidirectional alignment; and
a plurality of busbar assemblies each having a plurality of busbars each interconnecting the tabs of a part of the plurality of battery cells with each other, the part of the battery cells being arranged adjacent to each other, to form an electrical connection between the part of the battery cells, and having a planar-shaped busbar housing having the plurality of busbars attached to a lower surface thereof, each busbar assembly having a coolant channel attached to an upper surface of the busbar housing,
wherein respective coolant channels of the plurality of busbar assemblies are arranged in a direction in which the battery cells are aligned and the coolant channels of each busbar assembly are joined together.

### Claim 8 (depends on 7)

The battery of claim 7, wherein the busbar housing is made of a plastic material.

### Claim 9 (depends on 8)

The battery of claim 8, wherein the coolant channel is made of a same material as the busbar housing.

### Claim 10 (depends on 7)

The battery of claim 7, wherein the busbar housing includes an opening through which the busbar is exposed upward outside a top of the busbar housing.

### Claim 11 (depends on 10)

The battery of claim 10, wherein welding energy is emitted to a top of the busbar exposed through the opening to weld the busbar and the tabs positioned under the busbar together.