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Soft-packed battery cell module and assembly method thereof

A battery module and assembly method technology, which is applied to battery components, batteries, circuits, etc., can solve the problems of single fixed mode of battery modules, inability to adapt to the size of the battery box, and easy loosening of screws, so as to avoid the risk of high temperature Effect

Inactive Publication Date: 2017-11-24
GUANGZHOU GREAT POWER ENERGY & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the groups of pouch batteries in the current battery module are fixed in a vertical mode, which greatly limits its use when the height of the box is small
In addition, the fixed mode of the battery module is single, which cannot adapt to the battery box with variable size
In addition, some soft-packed battery modules only use screw fastening to realize the series-parallel connection of the modules. After long-term vibration, the screws are easy to loosen, so that the internal resistance of the connection increases, and the high temperature of the battery during high-current discharge The risk is greatly increased, and there are potential safety hazards

Method used

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  • Soft-packed battery cell module and assembly method thereof
  • Soft-packed battery cell module and assembly method thereof
  • Soft-packed battery cell module and assembly method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1~4 As shown, a soft pack battery module includes a plurality of battery packs, a series connection bar 200 for connecting each battery pack in series, and a protection mechanism.

[0038] The battery cell group includes a plurality of battery cell unit groups 900 and parallel connection rows 100. The battery cell unit group 900 includes a battery cell support 600, two battery cells 400 placed on both sides of the battery cell support 600, and two battery cells 400 The positive tab / negative tab 410 are opposite.

[0039] The parallel connection row 100 is provided with a tab piercing groove 120, and the positive pole tabs / negative pole tabs of each cell unit group are placed in the tab piercing groove 120 to connect with the parallel connection row, so as to realize the parallel connection of each cell unit group 900, parallel The positive pole part and the negative pole part of the battery cell unit group 900 are respectively formed. The soft pack cel...

Embodiment 2

[0049] This embodiment is the second embodiment of the present invention, such as Figure 5~8 As shown, the difference from Embodiment 1 is that the soft-pack battery module of this embodiment is in the form of laying flat, and the cell unit groups are arranged horizontally, and the positive pole part / negative pole part of every two battery cell unit groups are opposite to each other. and connected in parallel to form 900 layers of cell unit groups. The cell group is formed by vertically arranging layers of multi-layer cell unit groups. The layers of multi-layer cell unit groups are connected in parallel through parallel connection rows. The series connection bar 200 realizes the series connection of each cell group, and the pouch cell module is also provided with a positive and negative connection bar 800 .

[0050] The same as in Embodiment 1, the parallel connection row 100 is fixed on the cell support 600 through the second fixing hole 110 and the positioning groove 130, a...

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Abstract

The invention provides a soft-packed battery cell module and an assembly method thereof. The soft-packed battery cell module can form multiple serial and parallel structured battery packs by setting parallel connection bars and serial connection bars; a vertical-placing and flat-placing grouping method is provided; therefore, requirements of battery modules having multiple dimensions and different output requirements can be satisfied; furthermore, serial and parallel connection fixation is carried out in a welding manner; and thus, the high-temperature risk due to connection loosening can be effectively avoided.

Description

technical field [0001] The invention relates to the field of soft-packed battery modules in energy storage batteries, in particular to a soft-packed battery module and an assembly method thereof. Background technique [0002] Under the background of increasingly serious environmental pollution and the depletion of oil resources in today's world, electric vehicles with the characteristics of zero emission and high energy conversion efficiency have gradually entered people's field of vision. However, due to the development of battery technology, electric vehicles are far from being popularized. . Different models of electric vehicles have different power requirements, resulting in different numbers of battery modules connected in series in the battery box of each model. Most of the groups of pouch cells in the current battery module are fixed in a vertical mode, which greatly limits its use when the height of the box is small. In addition, the fixed mode of the battery modul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/22H01M10/04H01M50/528
CPCH01M10/04H01M2220/20H01M50/528Y02E60/10Y02P70/50
Inventor 郑高峰何锐敏许广开王向荣
Owner GUANGZHOU GREAT POWER ENERGY & TECH CO LTD