Battery, electric device, and battery manufacturing method

Patent metadata

Field	Value
Publication number	US-12489167-B2
Application number	US-202318473916-A
Country	US
Kind code	B2
Filing date	Sep 25, 2023
Priority date	Oct 27, 2021
Publication date	Dec 2, 2025
Grant date	Dec 2, 2025

Abstract

A battery includes at least one row of battery cells, a carrying assembly, and a connecting member. Each row of battery cells includes at least two battery cells arranged along a first direction. The carrying assembly is configured to carry the at least one row of battery cells. The connecting member includes a first connecting plate and a second connecting plate fixedly connected to each other. The first connecting plate is perpendicular to the second connecting plate. The first connecting plate extends in the first direction. The first connecting plate is connected to at least some battery cells in the at least one row of battery cells. The second connecting plate is configured to be fixedly connected to the carrying assembly of the battery.

First claim

What is claimed is:

1 . A battery, comprising:
at least one row of battery cells, each row of the battery cells comprising at least two battery cells arranged side by side along a first direction; a carrying assembly, configured to carry the at least one row of battery cells; and a connecting member, the connecting member comprising a first connecting plate and a second connecting plate fixedly connected to each other, wherein the first connecting plate is perpendicular to the second connecting plate, wherein the first connecting plate extends in the first direction in parallel to each row of battery cells, the first connecting plate is fixedly connected to at least some battery cells in the at least one row of battery cells, and the second connecting plate is configured to be fixedly connected to the carrying assembly of the battery, such that multiple battery cells are fastened to the carrying assembly via the connecting member.

2 . The battery according to claim 1 , wherein the first connecting plate comprises multiple connection zones, wherein each connection zone is connected to a side surface of at least one battery cell, and the connection zone is a cambered surface.

3 . The battery according to claim 1 , wherein the second connecting plate is provided with a groove on a side near the first connecting plate, wherein the groove matches the first connecting plate in shape, and part of the first connecting plate is placed in the groove to connect the first connecting plate to the second connecting plate.

4 . The battery according to claim 1 , wherein the first connecting plate is provided with at least one first water cooling channel inside, wherein the first connecting plate comprises a first water inlet and a first water outlet both communicating with the at least one first water cooling channel.

5 . The battery according to claim 4 , wherein the battery comprises multiple connecting members, multiple first water inlets in multiple first connecting plates of the multiple connecting members communicate with each other, and multiple first water outlets in the multiple first connecting plates communicate with each other.

6 . The battery according to claim 5 , wherein the battery further comprises at least one water cooling plate, wherein the water cooling plate is located between at least two rows of battery cells, the water cooling plate is provided with at least one second water cooling channel inside, and the water cooling plate comprises a second water inlet and a second water outlet both communicating with the at least one second water cooling channel.

7 . The battery according to claim 6 , wherein the second water inlet communicates with the first water inlet, and the second water outlet communicates with the first water outlet.

8 . The battery according to claim 1 , wherein each row of battery cells comprises endpoint battery cells located at the outermost of two ends in the first direction, and at least one end of the second connecting plate comprising two endpoint battery cells at one end in the first direction extends to inner sides of outer contours of the two endpoint battery cells.

9 . The battery according to claim 1 , wherein the connecting member is provided between every two adjacent rows of the battery cells.

10 . The battery according to claim 1 , wherein in a second direction, the battery comprises two rows of battery cells, wherein the connecting members are located on two sides of the two rows of battery cells back away from each other, and the second direction is perpendicular to the first direction.

11 . The battery according to claim 1 , wherein the second connecting plate is connected to at least some battery cells in at least one row of battery cells.

12 . The battery according to claim 1 , wherein the battery further comprises a connecting piece, wherein the connecting piece is provided on at least one side of the second connecting plate in the second direction, the second connecting plate is fixedly connected to the carrying assembly via the connecting piece, and the second direction is perpendicular to the first direction.

13 . The battery according to claim 12 , wherein the battery further comprises a reinforcing structure, wherein the reinforcing structure connects the second connecting plate and the first connecting plate.

14 . An electric device, comprising the battery according to claim 1 .

15 . A battery manufacturing method, comprising:
providing at least one row of battery cells, each row of the battery cells comprising at least two battery cells arranged side by side along a first direction; providing a carrying assembly configured to carry the at least one row of battery cells; and providing a connecting member, the connecting member comprising a first connecting plate and a second connecting plate fixedly connected to each other, wherein the first connecting plate is perpendicular to the second connecting plate, the first connecting plate extends in the first direction in parallel to each row of battery cells, the first connecting plate is fixedly connected to at least some battery cells in the at least one row of battery cells, and the second connecting plate is fixedly connected to the carrying assembly of the battery, such that multiple battery cells are fastened to the carrying assembly via the connecting member.

Assignees

• Contemporary Amperex Technology Hong Kong Ltd

Inventors

• Ji hongye
• Qin Feng
• Sun Zhanyu
• Wang Peng
• Wang Zhi

Classifications

• H01M2220/20

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

• H01M50/213

  adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) · CPC title

• H01M50/291

  characterised by their shape · CPC title

• H01M50/209

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

• H01M10/6568

  characterised by flow circuits, e.g. loops, located externally to the cells or cell casings · CPC title