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

Patent metadata

Field	Value
Publication number	US-12308463-B2
Application number	US-202217750668-A
Country	US
Kind code	B2
Filing date	May 23, 2022
Priority date	Feb 21, 2022
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

Embodiments of the present application provide a battery, a power consumption device, and a method and device for producing a battery. The battery includes: a plurality of battery cells arranged in a first direction; and a spacer plate, the spacer plate extending in the first direction and being connected to a first wall of each battery cell of the plurality of battery cells, the first wall being a wall of the battery cell that has a largest surface area, a surface of the spacer plate being provided with an insulating layer, a size of the spacer plate in a second direction being less than 0.5 mm, and the second direction being perpendicular to the first wall. According to technical solutions of the embodiments of the present application, performance of the battery could be improved.

First claim

What is claimed is:

1. A battery, comprising:
a plurality of battery cells arranged in a first direction; and
a spacer plate, the spacer plate extending in the first direction and being connected to a first wall of each battery cell of the plurality of battery cells, the first wall being a wall of the each battery cell of the plurality of battery cells that has a largest surface area, and a surface of the spacer plate being provided with an insulating layer;
wherein a size T 1 of the spacer plate in a second direction is less than 0.5 mm, and the second direction is perpendicular to the first wall;
wherein a voltage U of the battery and a size T 2 of the insulating layer in the second direction satisfy: 0.01×10 −3 mm/V≤T 2 /U≤3×10 −3 mm/V.

2. The battery according to claim 1 , wherein the size T 1 of the spacer plate in the second direction is not less than 0.05 mm.

3. The battery according to claim 1 , wherein an area S 1 of a surface of the spacer plate that is connected to first walls of the plurality of battery cells and a total area S 2 of the first walls of the plurality of battery cells that are connected to a same side of the spacer plate satisfy: 0.25≤S 1 /S 2 ≤4.

4. The battery according to claim 1 , wherein in a third direction, a size H 1 of the spacer plate and a size H 2 of the first wall of the each battery cell of the plurality of battery cells satisfy: 0.2≤H 1 /H 2 ≤2, and the third direction is perpendicular to the first direction and the second direction.

5. The battery according to claim 1 , wherein in the first direction, a size L 1 of the spacer plate and a size L 2 of the plurality of battery cells satisfy: 0.5≤L 1 /L 2 ≤2.

6. The battery according to claim 1 , wherein a size T 2 of the insulating layer in the second direction satisfies: 0.01 mm≤T 2 ≤0.3 mm.

7. The battery according to claim 1 , wherein the each battery cell of the plurality of battery cells comprises two first walls disposed opposite to each other in the second direction and two second walls disposed opposite to each other in the first direction, wherein in the first direction, the second walls of two adjacent battery cells are opposite to each other.

8. The battery according to claim 1 , wherein the battery comprises multiple columns of the plurality of battery cells arranged in the first direction and a plurality of spacer plates, wherein the multiple columns of the plurality of battery cells and the plurality of spacer plates are alternately disposed in the second direction.

9. The battery according to claim 1 , wherein the battery comprises a plurality of battery modules, a battery module comprises at least one column of the plurality of battery cells arranged in the first direction and at least one spacer plate, and the at least one column of the plurality of battery cells and the at least one spacer plate are alternately disposed in the second direction.

10. The battery according to claim 9 , wherein the battery module comprises N columns of the plurality of battery cells and N−1 spacer plate(s), the spacer plate is disposed between two adjacent columns of the plurality of battery cells, and N is an integer greater than 1.

11. The battery according to claim 9 , wherein the plurality of battery modules are arranged in the second direction, and a gap is provided between adjacent battery modules.

12. The battery according to claim 1 , wherein the spacer plate is bonded to the first wall.

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

14. A method for producing a battery, comprising:
providing a plurality of battery cells arranged in a first direction; and
providing a spacer plate, the spacer plate extending in the first direction and being connected to a first wall of each battery cell of the plurality of battery cells, the first wall being a wall of the each battery cell of the plurality of battery cells that has a largest surface area, and a surface of the spacer plate being provided with an insulating layer;
wherein a size T 1 of the spacer plate in a second direction is less than 0.5 mm, and the second direction is perpendicular to the first wall;
wherein a voltage U of the battery and a size T 2 of the insulating layer in the second direction satisfy: 0.01×10 −3 mm/V≤T 2 /U≤3×10 −3 mm/V.

15. A device for producing a battery, comprising:
a providing module configured to provide a plurality of battery cells arranged in a first direction and a spacer plate, the spacer plate extending in the first direction and being connected to a first wall of each battery cell of the plurality of battery cells, the first wall being a wall of the each battery cell of the plurality of battery cells that has a largest surface area, and a surface of the spacer plate being provided with an insulating layer;
wherein a size T 1 of the spacer plate in a second direction is less than 0.5 mm, and the second direction is perpendicular to the first wall;
wherein a voltage U of the battery and a size T 2 of the insulating layer in the second direction satisfy: 0.01×10 −3 mm/V≤T 2 /U≤3×10 −3 mm/V.

Assignees

• Contemporary Amperex Technology Hong Kong Ltd

Inventors

• Sun Zhanyu
• Long Chao
• Wang Peng
• Chen Xingdi

Classifications

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M50/291

  characterised by their shape · CPC title

• H01M50/593

  Spacers; Insulating plates · CPC title

• H01M50/24

  adapted for protecting batteries from their environment, e.g. from corrosion (thermal insulation H01M10/658) · CPC title

• H01M50/249

  specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64) · CPC title