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Battery cell module and manufacturing method thereof

A cell module and manufacturing method technology, applied to battery pack parts, circuits, electrical components, etc., can solve problems such as misalignment of positioning holes for charging and discharging performance of battery systems, small influence of cell welding area, etc., to avoid poor welding , The effect of increasing the welding area and avoiding the problem of wrong holes

Pending Publication Date: 2022-05-13
HUBEI JINQUAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cell module and its manufacturing method to solve the problem that the small welding area of ​​the existing cell affects the charging and discharging performance of the battery system and the misalignment of the welding positioning hole and the positioning hole on the flat bus bar

Method used

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  • Battery cell module and manufacturing method thereof
  • Battery cell module and manufacturing method thereof
  • Battery cell module and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a battery module, such as Figure 1-Figure 3 As shown, the battery module includes two battery cells 1 and bus bars 2 arranged along the X-axis direction. It should be noted that the number of battery cells 1 is not limited to two, and a corresponding number can be set according to requirements.

[0047] The battery cell 1 is provided with a pole mounting surface 10 , and poles 11 are provided on the pole mounting surface 10 , and the poles 11 on the pole mounting surfaces 10 on the same side of two adjacent battery cells 1 are spaced apart from each other.

[0048] In this embodiment, the poles 11 on the same side of the two battery cells 1 have opposite electrodes, so that the two battery cells 1 of the battery module are connected in series.

[0049] The bus bar 2 is provided with two surrounding structures 20 arranged along the X-axis direction, and a barrier part 21 is provided between the two surrounding structures 20, wherein the surroun...

Embodiment 2

[0063] This embodiment provides a battery module, such as figure 1 , figure 2 and Figure 4 As shown, the battery cell includes two battery cells 1 and busbars 2 arranged along the X-axis direction.

[0064] The battery cell 1 is provided with a pole installation surface 10 , and poles 11 are provided on the pole installation surface 10 , and the poles 11 on the pole installation surfaces 10 of two adjacent battery cells 1 are spaced apart from each other.

[0065] In this embodiment, the poles 11 on the same side of the two battery cells 1 have the same electrodes, so that the two battery cells 1 of the battery module are connected in parallel.

[0066] The bus bar 2 is provided with two surrounding structures 20 arranged along the X-axis direction, and a barrier part 21 is provided between the two surrounding structures 20, wherein the surrounding structures 20 are sleeved on the pole 11 in a one-to-one correspondence , The barrier portion 21 is disposed between two adja...

Embodiment 3

[0079] This embodiment provides a method for manufacturing a cell module, which is used to manufacture the cell module of Embodiment 1 or Embodiment 2. see Figure 1-Figure 4 , the method includes the following steps:

[0080] S100 , align each surrounding structure 20 of the bus bar 2 with the pole 11 of each battery cell 1 . It can be understood that the surrounding structure 20 is opposite to the pole 11 along the Y-axis direction.

[0081] S200, sleeve the surrounding structures 20 on the pole 11 in a one-to-one correspondence.

[0082] S300 , welding along the circumference of the enclosure structure 20 .

[0083] It should be noted that welding can be performed along the entire perimeter of the enclosure structure 20, or along a part of the perimeter of the enclosure structure 20, such as along a wide side and a long side of the enclosure structure 20. welding.

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Abstract

The invention belongs to the technical field of batteries, and discloses a battery cell module and a manufacturing method of the battery cell module, the battery cell module comprises a busbar and at least two battery cells arranged in the X-axis direction, the busbar is provided with surrounding part structures arranged in the X-axis direction, and a partition part is arranged between every two adjacent surrounding part structures. The surrounding part structures are connected to the pole columns of the battery cell in a one-to-one correspondence manner, and the blocking part is arranged between every two adjacent pole columns. When the busbar is welded, the welding path is carried out along the circumferential direction of the surrounding part structure, compared with a traditional busbar, the welding area is greatly increased, the charging and discharging performance is improved, the problem of wrong holes can be avoided through the surrounding part structure, and then poor welding is avoided.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery module and a manufacturing method thereof. Background technique [0002] On the current rectangular battery cell, the size of the positive and negative poles of the battery cell is limited by the thickness of the cell, and the welding area is too small when the bus bar is laser welded, resulting in a small flow area, which in turn affects the cell mold. The charging and discharging performance of the group. [0003] In addition, when the battery module is assembled, it is easy to produce the problem of misalignment between the welding positioning hole of the pole and the positioning hole on the bus bar, resulting in welding deviation and poor welding. Contents of the invention [0004] The purpose of the present invention is to provide a cell module and its manufacturing method to solve the problems that the small welding area of ​​the existing cells affects the ch...

Claims

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Application Information

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IPC IPC(8): H01M50/505H01M50/516
CPCH01M50/505H01M50/516
Inventor 田原松蔡圣添
Owner HUBEI JINQUAN NEW MATERIALS CO LTD
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