Battery electrode tab welding system

A welding system and battery tab technology, applied in welding equipment, laser welding equipment, metal processing equipment, etc., can solve problems such as residues

Inactive Publication Date: 2018-02-23
GUANGDONG ZHENGYE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the thickness of the foil tab and the sheet tab is small. During laser welding, it is easy to break down such a thin tab, so that the tab is welded on the bottom tooling. When the tab is removed, the tab Torn, residue on bottom tooling

Method used

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  • Battery electrode tab welding system
  • Battery electrode tab welding system

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Embodiment Construction

[0016] The core of the present invention is to provide a battery tab welding system, which has high welding efficiency and can prevent the tab from being welded to the bottom tooling during welding.

[0017] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Please refer to figure 1 and figure 2 , figure 1 A structural schematic diagram of a specific embodiment of the battery tab welding system provided by the present invention; figure 2 for figure 1 An enlarged schematic view of part A in Fig.

[0019] The battery tab welding system provided by the specific embodiment of the present invention includes a bottom tooling 1, a top pressing device 2 for pressing the foil tab 3 and the sheet tab 4 on the bottom tooling 1, and a top pressing device 2 for launching The laser emitter...

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PUM

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Abstract

The invention discloses a battery electrode tab welding system. The battery electrode tab welding system comprises a bottom tool, a top pressing device used for pressing a foil electrode tab and a flaky electrode tab onto the bottom tool and a laser emitter used for emitting laser to realize laser welding. Protection holes are formed in the corresponding positions, under welding spots, of the bottom tool and used for enabling the welding spots to be suspended in the air. In the welding process, the foil electrode tab and the flaky electrode tab are pressed onto the bottom tool through the toppressing device. The protection holes are formed in the corresponding positions, under welding spots, of the bottom tool and used for enabling the welding spots on the foil electrode tab and the flakyelectrode tab to be suspended in the air. Accordingly, an electrode tab welding component formed through welding is effectively prevented from being welded to the bottom tool, and the foil electrodetab and the flaky electrode tab are prevented from being torn by the electrode tab welding component. Meanwhile, the laser welding efficiency is high.

Description

technical field [0001] The invention relates to the technical field of laser welding, in particular to a battery tab welding system. Background technique [0002] Ultrasonic welding or resistance welding is often used when welding foil tabs and sheet tabs of lithium batteries in existing lithium batteries. However, this welding method is limited by the shape of the ultrasonic welding head, which greatly restricts the shape of the battery tabs. Compatibility of new products brings great difficulties and low production efficiency. [0003] Laser welding is an advanced welding technology that has developed rapidly in recent years. Laser energy is used to melt the welding wire and the welding part of the tab to achieve welding. The welding efficiency is high, and the shape of the tab is not limited. However, the thickness of the foil tab and the sheet tab is small. During laser welding, it is easy to break down such a thin tab, so that the tab is welded on the bottom tooling. W...

Claims

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Application Information

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IPC IPC(8): B23K26/21B23K26/70
CPCB23K26/21B23K26/702
Inventor 肖磊丁黎明梅领亮徐地华
Owner GUANGDONG ZHENGYE TECH
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