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

Patent metadata

Field	Value
Publication number	US-11973243-B2
Application number	US-202318355702-A
Country	US
Kind code	B2
Filing date	Jul 20, 2023
Priority date	Feb 18, 2022
Publication date	Apr 30, 2024
Grant date	Apr 30, 2024

Abstract

A battery includes a battery cell having a first wall provided with a pressure relief mechanism configured to be actuated when internal pressure or temperature of the battery cell reaches a threshold, a fire-fighting pipeline configured to accommodate a fire-fighting medium and discharge the fire-fighting medium when the pressure relief mechanism is actuated, a first fixing member disposed on a side of the fire-fighting pipeline close to the first wall and provided with first and second limiting parts, and a second fixing member disposed on a side of the fire-fighting pipeline away from the first wall and provided with third and fourth limiting parts. The third and first limiting parts match each other to fix the fire-fighting pipeline between the first and second fixing members. The fourth and second limiting parts match each other to limit the second fixing member in an extending direction of the fire-fighting pipeline.

First claim

What is claimed is:

1. A battery, comprising:
a battery cell, a first wall of the battery cell being provided with a pressure relief mechanism, and the pressure relief mechanism being configured to be actuated in response to an internal pressure or temperature of the battery cell reaching a threshold, to relieve the internal pressure;
a fire-fighting pipeline configured to accommodate a fire-fighting medium and the fire-fighting pipeline being configured to discharge the fire-fighting medium when the pressure relief mechanism is actuated;
a first fixing member, disposed on a side of the fire-fighting pipeline close to the first wall, the first fixing member being provided with a first limiting part and a second limiting part; and
a second fixing member, disposed on a side of the fire-fighting pipeline away from the first wall, the second fixing member being provided with a third limiting part and a fourth limiting part, the third limiting part and the first limiting part being matched with each other to fix the fire-fighting pipeline between the first fixing member and the second fixing member, the fourth limiting part and the second limiting part being matched with each other to limit the second fixing member in a first direction, and the first direction being parallel to an extending direction of the fire-fighting pipeline;
wherein:
the third limiting part comprises a buckle extending in the first direction;
the fourth limiting part is an opening disposed in the buckle;
the first limiting part is a groove matched with the buckle;
the second limiting part is a stopper matched with the opening; and
when the buckle is buckled in the groove, the stopper is located within the opening to limit movement of the buckle in the first direction.

2. The battery according to claim 1 , wherein a length of the stopper in a second direction is greater than a thickness of the buckle in the second direction, and the second direction is parallel to the first wall and perpendicular to the first direction.

3. The battery according to claim 1 , wherein the stopper has a first plane perpendicular to the first direction, and a side wall of the opening is matched with the first plane such that the stopper is located within the opening.

4. The battery according to claim 3 , wherein the stopper is a cuboid stopper, and the opening is a rectangular opening matched with the cuboid stopper.

5. The battery according to claim 1 , wherein:
the stopper is disposed at one end of the groove in the first direction; and/or
the groove has two segments in the first direction, and the stopper is disposed between the two segments of the groove.

6. The battery according to claim 1 , wherein:
the buckle is a first buckle, the third limiting part further comprises a second buckle, and the first buckle and the second buckle are separately disposed in the second direction; and
the groove is a first groove, the first limiting part further comprises a second groove, and the first groove and the second groove are separately disposed in the second direction, and are matched with the first buckle and the second buckle, respectively.

7. The battery according to claim 6 , wherein:
the stopper is a first stopper corresponding to the first groove;
the second limiting part further comprises a second stopper corresponding to the second groove; and
the first topper and the second stopper are axisymmetrically distributed with the first direction as an axis.

8. The battery according to claim 6 , wherein:
the stopper is a first stopper corresponding to the first groove;
the second limiting part further comprises a second stopper corresponding to the second groove; and
the first stopper and the second stopper are symmetrically distributed about a center.

9. The battery according to claim 6 , wherein:
the stopper is one of one or more first toppers corresponding to the first groove;
the second limiting part further comprises one or more second stoppers corresponding to the second groove; and
a number of the one or more first stoppers differs from a number of the one or more second stoppers.

10. The battery according to claim 1 , wherein the first fixing member is fixed to a surface of the first wall of the battery cell that is away from an interior of the battery cell.

11. The battery according to claim 1 , wherein the first fixing member is fixed to a surface of a beam of a box that is close to the fire-fighting pipeline, the box being configured to accommodate the battery cell.

12. The battery according to claim 11 , wherein the first fixing member is provided with a fixing part, and the fixing part is configured to fix the first fixing member to the beam.

13. The battery according to claim 1 , wherein the battery cell is one of a plurality of battery cells arranged in the first direction, the first fixing member is one of a plurality of first fixing members arranged in the first direction, and the second fixing member is one of at least one second fixing member.

14. The battery according to claim 13 , wherein one second fixing member corresponds to the plurality of first fixing members.

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

16. A method for producing the battery according to claim 1 , comprising:
providing the battery cell, the first wall of the battery cell being provided with the pressure relief mechanism;
providing the fire-fighting pipeline;
providing the first fixing member, the first fixing member being disposed on the side of the fire-fighting pipeline close to the first wall, the first fixing member being provided with the first limiting part and the second limiting part; and
providing the second fixing member, the second fixing member being disposed on the side of the fire-fighting pipeline away from the first wall, the second fixing member being provided with the third limiting part and the fourth limiting part, the third limiting part and the first limiting part being matched with each other to fix the fire-fighting pipeline between the first fixing member and the second fixing member, the fourth limiting part and the second limiting part being matched with each other to limit the second fixing member in a first direction, and the first direction being parallel to the extending direction of the fire-fighting pipeline.

17. A device for producing the battery according to claim 1 , comprising: a providing module configured to:
provide the battery cell, the first wall of the battery cell being provided with the pressure relief mechanism;
provide the fire-fighting pipeline;
provide the first fixing member, the first fixing member being disposed on the side of the fire-fighting pipeline close to the first wall, the first fixing member being provided with the first limiting part and the second limiting part; and
provide the second fixing member, the second fixing member being disposed on the side of the fire-fighting pipeline away from the first wall, the second fixing member being provided with the third limiting part and the fourth limiting part, the third limiting part and the first limiting part being matched with each other to fix the fire-fighting pipeline between the first fixing member and the second fixing member, the fourth limiting part and the second limiting part being matched with each other to limit the second fixing member in the first direction, and the first direction being parallel to the extending direction of the fire-fighting pipeline.

Assignees

• Contemporary Amperex Technology Co Ltd

Inventors

• Huang Xiaoteng
• Xu Chenyi
• Hu Langchao
• Ma Junxiang
• Yang Haiqi
• Liu Jun
• Wang Peng
• Sun Zhanyu

Classifications

• A62C35/10

  Containers destroyed or opened by flames or heat · CPC title

• H01M50/3425

  in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member · CPC title

• H01M50/325

  comprising deformable valve members, e.g. elastic or flexible valve members · CPC title

• H01M50/609

  Arrangements or processes for filling with liquid, e.g. electrolytes · CPC title

• A62C3/16

  in electrical installations, e.g. cableways · CPC title