Battery, power consumption device, and method and device for producing battery

Patent metadata

Field	Value
Publication number	US-11888136-B2
Application number	US-202318118860-A
Country	US
Kind code	B2
Filing date	Mar 8, 2023
Priority date	Feb 21, 2022
Publication date	Jan 30, 2024
Grant date	Jan 30, 2024

Abstract

Provided are a battery, a power consumption device, a method and a device for producing a battery. The battery includes: a plurality of battery cells arranged along a first direction; a thermal management component extending along the first direction and being connected to a first wall of each battery cell among the plurality of battery cells, the first wall being a wall with a largest surface area of the battery cell, and the thermal management component being configured to adjust a temperature of the battery cell; and where in the second direction, a size H1 of the thermal management component and a size H2 of the first wall satisfy: 0.1≤H1/H2≤2, and the second direction is perpendicular to the first direction and parallel to the first wall.

First claim

What is claimed is:

1. A battery, comprising:
a plurality of battery cells arranged along a first direction;
a thermal management component extending along the first direction and being connected to a first wall of each battery cell among the plurality of battery cells, the first wall being a wall with a largest surface area of the battery cell, the thermal management component being configured to adjust a temperature of the battery cell; and
wherein in a second direction, a size H1 of the thermal management component and a size H2 of the first wall satisfy: 0.1≤H1/H2≤2, and the second direction is perpendicular to the first direction and parallel to the first wall;
wherein the thermal management component comprises a first thermally conductive plate and a second thermally conductive plate provided opposite to each other along a third direction; and
wherein, a flow channel is provided between the first thermally conductive plate and the second thermally conductive plate, and the flow channel is configured to accommodate a fluid for adjusting a temperature of the battery cell, and the third direction is perpendicular to the first direction and the second direction.

2. The battery according to claim 1 , wherein the size H1 of the thermal management component and the size H2 of the first wall further satisfy: 0.3≤H1/H2≤1.3.

3. The battery according to claim 1 , wherein a heat exchange area between the first wall and the thermal management component is S, and a relationship between a capacity Q of the battery cell and the heat exchange area S satisfies: 0.03Ah/cm2≤Q/S≤6.66Ah/cm2.

4. The battery according to claim 1 , wherein the size H1 of the thermal management component is 1.5 cm˜30 cm.

5. The battery according to claim 1 , wherein the thermal management component further comprises a stiffener, the stiffener is provided between the first thermally conductive plate and the second thermally conductive plate, and the stiffener, the first thermally conductive plate and the second thermally conductive plate form the flow channel.

6. The battery according to claim 5 , wherein an angle between the stiffener and the first thermally conductive plate or the second thermally conductive plate is an acute angle.

7. The battery according to claim 1 , wherein the battery cell comprises two first walls provided opposite to each other in a third direction and two second walls provided opposite to each other in the first direction, wherein in the first direction, the second walls of two adjacent battery cells face each other, and the third direction is perpendicular to the first direction and the second direction.

8. The battery according to claim 1 , wherein the battery comprises the plurality of the battery cells arranged in a plurality of columns along the first direction and a plurality of the thermal management components, wherein the plurality of columns of the battery cells and the plurality of the thermal management components are alternately provided in a third direction, and the third direction is perpendicular to the first direction and the second direction.

9. The battery according to claim 1 , wherein the thermal management component and the first wall are bonded.

10. A power consumption device, comprising: the battery according to claim 1 , the battery being configured to provide electric energy.

11. A method for producing a battery, comprising:
providing a plurality of battery cells arranged along a first direction;
providing a thermal management component extending along the first direction and being connected to a first wall of each battery cell among the plurality of battery cells, the first wall being a wall with a largest surface area of the battery cell, the thermal management component being configured to adjust a temperature of the battery cell; and
wherein in a second direction, a size H1 of the thermal management component and a size H2 of the first wall satisfy: 0.1≤H1/H2≤2, and the second direction is perpendicular to the first direction and parallel to the first wall;
wherein the thermal management component comprises a first thermally conductive plate and a second thermally conductive plate provided opposite to each other along a third direction; and
wherein, a flow channel is provided between the first thermally conductive plate and the second thermally conductive plate, and the flow channel is configured to accommodate a fluid for adjusting a temperature of the battery cell, and the third direction is perpendicular to the first direction and the second direction.

12. A device for producing a battery, comprising:
a first provision module for providing a plurality of battery cells arranged along a first direction;
a second provision module for providing a thermal management component extending along the first direction and being connected to a first wall of each battery cell among the plurality of battery cells, the first wall being a wall with a largest surface area of the battery cell, the thermal management component being configured to adjust a temperature of the battery cell; and
wherein in a second direction, a size H1 of the thermal management component and a size H2 of the first wall satisfy: 0.1≤H1/H2≤2, and the second direction is perpendicular to the first direction and parallel to the first wall;
wherein the thermal management component comprises a first thermally conductive plate and a second thermally conductive plate provided opposite to each other along a third direction; and
wherein, a flow channel is provided between the first thermally conductive plate and the second thermally conductive plate, and the flow channel is configured to accommodate a fluid for adjusting a temperature of the battery cell, and the third direction is perpendicular to the first direction and the second direction.

Assignees

• Contemporary Amperex Technology Co Ltd

Inventors

• Sun Zhanyu
• Yang Haiqi
• Huang Xiaoteng
• Wang Peng
• Hou Yuepan

Classifications

• H01M10/6555 Primary

  arranged between the cells · CPC title

• H01M10/0404

  Machines for assembling batteries · CPC title

• H01M50/209

  adapted for prismatic or rectangular cells (H01M50/216 takes precedence) · CPC title

• H01M10/647 Primary

  Prismatic or flat cells, e.g. pouch cells · CPC title

• H01M10/651 Primary

  characterised by parameters specified by a numeric value or mathematical formula, e.g. ratios, sizes or concentrations · CPC title