Battery, power consumption apparatus, and method for producing battery

Patent metadata

Field	Value
Publication number	US-11858332-B2
Application number	US-202117532284-A
Country	US
Kind code	B2
Filing date	Nov 22, 2021
Priority date	Dec 11, 2020
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

Abstract

The present application provides a battery, a power consumption apparatus, and a method for producing a battery. The battery includes a box body, a battery module and a mounting plate, the battery module is disposed in the box body and includes a battery cell arrangement structure and a first end plate, the battery cell arrangement structure includes a plurality of battery cells stacked and is disposed on one side of the battery cell arrangement structure, the first end plate is fixedly connected to the battery cell arrangement structure, the mounting plate is disposed between the first end plate and the box body and is fixedly connected to the box body; the first end plate has a first elastic support part configured to be capable of abutting the mounting plate, being squeezed by the battery cell arrangement structure and deforming when the battery cell arrangement structure expands.

First claim

What is claimed is:

1. A battery, comprising:
a box body;
a battery module disposed in the box body and comprising a battery cell arrangement structure and a first end plate, the battery cell arrangement structure comprising a plurality of battery cells stacked along a first direction, the first end plate being disposed on one side of the battery cell arrangement structure, and the first end plate being fixedly connected to the battery cell arrangement structure, and the first direction being a length direction of the box body; and
a mounting plate disposed between the first end plate and the box body, the mounting plate being fixedly connected to the box body;
wherein the first end plate has a first elastic support part, and the first elastic support part is configured to be capable of abutting the mounting plate, being squeezed by the battery cell arrangement structure and deforming when the battery cell arrangement structure expands to provide expansion space for the battery cell arrangement structure;
wherein the box body comprises a first wall and a second wall, the second wall is connected to the first wall and extends upward, the battery module is located above the first wall, and the mounting plate is disposed between the first end plate and the second wall, and the mounting plate comprises a mounting plate body and a first extending part, the first extending part extends from the mounting plate body toward the second wall, and the first extending part is fixedly connected to the second wall.

2. The battery according to claim 1 , wherein the mounting plate is connected to the second wall through a first fastener.

3. The battery according to claim 1 , wherein a restraint groove with an opening facing upward is disposed in the box body, and a lower end of the mounting plate is plugged into the restraint groove;
wherein a restraint member is disposed in the box body, the restraint member has an upright part, and the restraint groove is restricted between the upright part and the second wall.

4. The battery according to claim 1 ,
wherein the first extending part is fixedly connected to an upper surface of the second wall.

5. The battery according to claim 1 , wherein the mounting plate further comprises a second extending part, the second extending part extends from the mounting plate body toward the second wall and abuts the second wall, and the second extending part and the first extending part are spaced apart in an up-down direction.

6. The battery according to claim 1 , wherein a height of the mounting plate is not smaller than a height of the battery cell arrangement structure, and the height of the mounting plate is greater than a height of the second wall.

7. The battery according to claim 1 , wherein at least a portion of the first elastic support part obliquely extends upward toward the mounting plate.

8. The battery according to claim 1 , wherein the box body further comprises a third wall, the third wall is connected to the first wall and extends upward, the third wall is disposed opposite to the second wall along the first direction, and the first elastic support part abuts the mounting plate when the battery cell arrangement structure does not expand to realize locating of the battery module in the first direction;
wherein the battery module is in an interference fit with the box body, and the first elastic support part is configured to absorb a magnitude of interference in the first direction through generation of elastic deformation.

9. The battery according to claim 1 , wherein the box body further comprises a pair of fourth walls, the pair of fourth walls are both connected to the first wall and extend upward, the pair of fourth walls are disposed opposite to each other along a second direction, and the second direction intersects with the first direction; and
the first end plate further comprises a second elastic support part, and the second elastic support part is configured to abut the fourth wall to realize locating of the battery module in the second direction.

10. The battery according to claim 1 , wherein the first end plate further comprises an end plate body, the end plate body has a first surface facing the battery cell arrangement structure and a second surface facing away from the battery cell arrangement structure, and the first elastic support part is disposed on the second surface.

11. The battery according to claim 10 , wherein an orthographic projection of the first elastic support part on a horizontal plane is in a long strip shape, a face, on which one long side of the long strip shape is located, to the second surface, and a face on which the other long side of the long strip shape is located abuts the mounting plate.

12. The battery according to claim 10 , wherein the first elastic support part is multiple in quantity, and the multiple first elastic support parts are arranged at intervals on the second surface along an up-down direction.

13. The battery according to claim 1 , wherein the battery further comprises a second end plate, the second end plate is disposed opposite to the first end plate along the first direction, the battery cell arrangement structure is located between the first end plate and the second end plate, and the second end plate is fixedly connected to both the battery cell arrangement structure and the box body.

14. The battery according to claim 1 , wherein the mounting plate is provided with a first restraint face, and the first restraint face is configured to abut the first end plate to limit the first end plate to move upward;
wherein a face of the mounting plate facing the first end plate is partially recessed to form a groove, and an upper side wall of the groove is the first restraint face.

15. The battery according to claim 14 , wherein the first end plate is provided with a first restraint protrusion, and an upper surface of the first restraint protrusion is configured to abut the first restraint face to limit the first end plate to move upward;
wherein the first restraint protrusion horizontally extends toward the mounting plate.

16. The battery according to claim 15 , wherein a gap is provided between the upper surface of the first restraint protrusion and the first restraint face in an up-down direction when the battery cell arrangement structure does not expand.

17. The battery according to claim 15 , wherein the first end plate further comprises an end plate body, the end plate body has a first surface facing the battery cell arrangement structure and a second surface facing away from the battery cell arrangement structure, and the first restraint protrusion is disposed on the second surface.

18. A power consumption apparatus, comprising a battery, the battery comprising:
a box body;
a battery module disposed in the box body and comprising a battery cell arrangement structure and a first end plate, the battery cell arrangement structure comprising a plurality of battery cells stacked along a first direction, the first end plate being disposed on one side of the battery cell arrangement structure, and the first end plate being fixedly connected to the battery cell arrangement structure, and the first direction being a length direction of the box body; and
a mounting plate disposed between the first end plate and the box body, the mounting plate being fixedly connected to the box body;
wherein the first end plate has a first elastic support part, and the first elastic support part is configured to be capable of abutting the mounting plate, being squeezed by the battery cell

Assignees

• Contemporary Amperex Technology Co Ltd

Inventors

• Zhang Wenhui
• Wang Kangyu
• Qian Mu
• Xu Wencai
• Wang Zengzhong
• Ji Jinqing

Classifications

• B60K1/04 Primary

  of the electric storage means for propulsion · CPC title

• B60L50/64

  Constructional details of batteries specially adapted for electric vehicles · CPC title

• H01M50/209 Primary

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

• H01M50/244

  Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method · CPC title

• H01M50/26

  Assemblies sealed to each other in a non-detachable manner · CPC title