# US 12,015,136 B2 · Battery pack

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- Number: US 12,015,136 B2
- Document ID: US12015136B2
- Status: Granted
- Kind: B2
- Application number: 17/341,389
- Filed: 2021-06-08
- Published: 2022-10-20
- Granted: 2024-06-18
- Earliest claimed: 2021-04-14
- Assignees: CALB Co., Ltd.; CALB Technology Co., Ltd.
- Applicants: CALB Co., Ltd.; CALB Technology Co., Ltd.
- Inventors: Li Niu; Xinjian Li; Xuan Zhang; Guohua Sun; Zhouli Li; Qixin Guo
- Web page: https://patentgrep.com/patent/US12015136B2

## CPC

- H01M 10/6567: Liquids
- H01M 10/613: Cooling or keeping cold
- H01M 10/6552: Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
- 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 10/658: by thermal insulation or shielding
- H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells
- 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 battery column and a liquid cooling tube. The battery column includes at least two batteries, and the batteries are arranged in a first direction. The liquid cooling tube is disposed on a surface of the battery column and is configured to dissipate heat for the batteries. The liquid cooling tube includes cooling portions, and the cooling portions are portions having orthographic projections on the battery column. The orthographic projections of the cooling portions on the battery column are cooling regions. The cooling portions extend in a second direction, and the second direction is not parallel to the first direction.

## Claims

### Claim 1

A battery pack, comprising:
a battery column, wherein the battery column comprises at least two battery units, each of which comprises batteries, a heat insulation structure is provided between adjacent battery units, and the batteries of the battery units are arranged in a first direction;
a liquid cooling tube, disposed on a surface of the battery column, configured to dissipate heat for the batteries, wherein the liquid cooling tube comprises cooling portions, the cooling portions are portions having orthographic projections on the battery column, the orthographic projections of the cooling portions on the battery column are cooling regions, the cooling regions of the cooling portions are located within a range of their corresponding battery units and do not overlap with the heat insulation structure, the cooling portions are disposed on at least one of a top portion and a bottom portion of the battery column, the cooling portions extend in a second direction, and the second direction is not parallel to the first direction; and
wherein in each battery unit, one of the batteries adjacent to the heat insulation structure is a target battery, another one of the batteries not adjacent to the heat insulation structure is a non-target battery, the target battery and the non-target battery do not share the same cooling portion, and at least one of the batteries is located outside a range of the cooling regions.

### Claim 2 (depends on 1)

The battery pack according to claim 1, wherein the second direction is perpendicular to the first direction.

### Claim 3 (depends on 2)

The battery pack according to claim 2, wherein a length of each of the cooling portions in the second direction is equal to a width of each of the batteries in the second direction.

### Claim 4 (depends on 2)

The battery pack according to claim 2, wherein
the liquid cooling tube further comprises first connection portions, the cooling regions at least partially overlapping with the target batteries of the battery units are target battery cooling regions, and the first connection portions connect the cooling portions corresponding to the target battery cooling regions arranged in the second direction together.

### Claim 5 (depends on 1)

The battery pack according to claim 1, wherein at least partial regions of at least two batteries respectively overlap with the cooling regions.

### Claim 6 (depends on 1)

The battery pack according to claim 1, wherein the liquid cooling tube further comprises second connection portions, and the second connection portions connect the cooling portions corresponding to the non-target batteries together.

### Claim 7 (depends on 1)

The battery pack according to claim 1, wherein the target battery is provided with the cooling portion whose cooling region at least partially overlaps with the target battery.

### Claim 8 (depends on 1)

The battery pack according to claim 1, wherein each of the battery units is provided with the cooling portions.