End plate, battery module, battery, electric device, and manufacturing method of end plate

Patent metadata

Field	Value
Publication number	US-2024222780-A1
Application number	US-202418608225-A
Country	US
Kind code	A1
Filing date	Mar 18, 2024
Priority date	Dec 24, 2021
Publication date	Jul 4, 2024
Grant date	—

Abstract

An end plate includes a main body portion arranged at one end of the battery module and configured to fix a battery cell in the battery module, a base configured to fix an output electrode of the battery module, and a separation portion located in the main body portion and configured to separate the main body portion from the base.

First claim

What is claimed is:

1 . An end plate for a battery module, comprising:
a main body portion arranged at one end of the battery module and configured to fix a battery cell in the battery module; a base configured to fix an output electrode of the battery module; and a separation portion located in the main body portion and configured to separate the main body portion from the base.

2 . The end plate according to claim 1 , wherein the main body portion is made of a metallic material, and/or the base is made of a plastic material.

3 . The end plate according to claim 1 , wherein:
the main body portion comprises a groove, and the separation portion is located in the groove; and the base comprises a connection portion, and the connection portion abuts against the separation portion and is fixedly connected to the main body portion.

4 . The end plate according to claim 3 , wherein:
a step portion is provided in the groove, and the separation portion abuts against the step portion.

5 . The end plate according to claim 3 , wherein:
a groove wall of the groove is provided with a first concave portion, and the connection portion is provided with a convex portion corresponding to the first concave portion; or a groove wall of the groove is provided with a first convex portion, and the connection portion is provided with a concave portion corresponding to the first convex portion.

6 . The end plate according to claim 1 , wherein:
the main body portion comprises a groove, and the separation portion is located in the groove; the base comprises a connection portion, and the connection portion abuts against the separation portion and is fixedly connected to the main body portion; and the base comprises a positive electrode base, a negative electrode base, and a base body, the positive electrode base and the negative electrode base are respectively arranged at two ends of the base body in a length direction of the end plate, and the positive electrode base, the negative electrode base, and the base body are integrally formed.

7 . The end plate according to claim 6 , wherein:
the groove comprises a first groove, a second groove, and a third groove corresponding to the positive electrode base, the negative electrode base, and the base body, respectively.

8 . The end plate according to claim 7 , wherein:
the separation portion comprises a first separation portion, a second separation portion, and a third separation portion; and the first separation portion is located in the first groove, the second separation portion is located in the second groove, and the third separation portion is located in the third groove.

9 . The end plate according to claim 8 , wherein in a height direction of the main body portion, a distance between the third separation portion and a bottom surface of the main body portion is greater than a distance between each of the first separation portion and the second separation portion and the bottom surface of the main body portion.

10 . The end plate according to claim 1 , wherein:
the base comprises a positive electrode base, a negative electrode base, and a base body, the positive electrode base and the negative electrode base are respectively arranged at two ends of the base body in a length direction of the end plate, and the positive electrode base, the negative electrode base, and the base body are integrally formed; and the base body is provided with a metallic insert configured to hoist the battery module.

11 . A battery module, comprising the end plate according to claim 1 .

12 . A battery, comprising the battery module according to claim 11 .

13 . An electric device, comprising the battery according to claim 12 , wherein the battery is provided to supply electric energy.

14 . A manufacturing method of an end plate, comprising:
providing a main body portion, wherein the main body portion is arranged at one end of the battery module and is configured to fix a battery cell in a battery module; providing a separation portion, wherein the separation portion is located in the main body portion; and providing a base, wherein the base is configured to fix an output electrode of the battery module; wherein the separation portion is configured to separate the main body portion from the base.

15 . The manufacturing method according to claim 14 , wherein:
the main body portion is made of a metallic material, and the main body portion is formed through extrusion-molding or die-casting.

16 . The manufacturing method according to claim 14 , wherein:
the base is made of a plastic material, and the base is formed through injection-molding on the main body portion based on a separation function of the separation portion.

Assignees

• Contemporary Amperex Technology Co Ltd

Inventors

• Liu Xuan
• Ruan Shengshen

Classifications

• H01M50/224

  Metals · CPC title

• H01M50/244

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

• H01M50/227

  Organic material · CPC title

• H01M2220/20

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

• H01M50/209

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