Tab welding method

A tab welding and laser welding technology, applied in welding equipment, arc welding equipment, structural parts, etc., can solve problems such as poor welding of tabs and collector plates, achieve real-time weld seam tracking, and reduce the impact of welding quality Effect

Pending Publication Date: 2021-04-20
WUHAN YIFI LASER EQUIP CO LTD
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Problems solved by technology

[0004] The invention provides a tab welding method, which is used to solve the defect of poor welding between the tab and the current collecting plate in the tab welding process in the prior art

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Embodiment Construction

[0032] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] Combine below Figure 1 to Figure 2 The tab welding method of the present invention is described. The tab welding method includes pre-welding inspection, welding inspection and post-welding inspection.

[0034] Such as figure 1 As shown, the tab welding method of the embodiment of the present invention includes:

[0035] S10, collecting a first image of the pre-welding area, proces...

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Abstract

The invention provides a tab welding method. The tab welding method comprises the following steps: acquiring a first image of a pre-welding area, and processing and analyzing the first image to obtain related data; and carrying out real-time processing and analysis on the related data so as to guide real-time online adjustment of laser welding process parameters, specifically, the related data comprises one or more of the material height, the surface smoothness and weld joint coordinates. The first image of the pre-welding area is processed and analyzed to obtain necessary pre-welding information, so that the laser welding process parameters are adjusted in real time, the influence of material warping on the welding quality is reduced, real-time weld joint tracking is achieved, and the problem of welding deviation caused by wrong identification due to the fact that a liquid injection hole is not assembled in place during welding is solved.

Description

technical field [0001] The invention relates to the technical field of battery assembly, in particular to a tab welding method. Background technique [0002] With the development of the new energy industry, the application of electric vehicles is becoming more and more extensive. The soft-pack lithium-ion battery is widely used in the market because of its light weight, high specific capacity, good safety performance, low internal resistance, and flexible design. Of course, the cruising range, battery stability and safety of electric vehicles are getting more and more attention. How to increase the cruising range of electric vehicles, increase the energy density of power batteries, improve the safety of power batteries, and improve the heat dissipation capacity of single batteries have become the key to the development of electric vehicles in the future. [0003] In the process of manufacturing the module of the battery cell, it is necessary to weld the tab of the battery ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/02B23K9/095H01M50/536
CPCY02E60/10
Inventor 吴轩冉昌林曹卫斌熊五岳程从贵
Owner WUHAN YIFI LASER EQUIP CO LTD
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