Terminal forming machine and method for pole piece of lithium battery

A molding machine, lithium battery technology, applied in the direction of battery electrodes, circuits, electrical components, etc., can solve the problems affecting the charging and discharging quality of the battery, the welding of the tabs is not strong, and the resistance of the welding place is large, and the cutting pattern can be set flexibly and follow-up. The effect of convenient process and high cutting efficiency

Active Publication Date: 2012-10-03
GEESUN AUTOMATION TECH
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Problems solved by technology

[0002] In the manufacturing process of lithium-ion batteries (especially large-capacity lithium-ion batteries), there are usually two ways to make pole pieces: one way is to use ultrasonic welding technology to weld the pole piece before the battery core is wound. The independent nickel strip lugs are welded on the pole pieces. In this way, the lugs and pole pieces are connected by solder joints. On the one hand, the resistance of the welding place is relatively large, which affects the charging and discharging quality of the battery. On the other hand, if the quality of the ultrasonic welding process is not good Stable or unbalanced speed of pole piece incoming material and nickel belt ma

Method used

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  • Terminal forming machine and method for pole piece of lithium battery
  • Terminal forming machine and method for pole piece of lithium battery
  • Terminal forming machine and method for pole piece of lithium battery

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[0024] Hereinafter, the present invention will be further described in detail through specific embodiments in conjunction with the drawings.

[0025] In the embodiments of the present application, the lithium battery pole piece forming machine uses a laser to cut the lithium ion battery pole piece to form the pole lug. Specifically, the unwinding assembly is first used to transport the rolled pole piece to the cutting pad. Under the control of the control system, the laser head assembly uses the laser head to continuously cut the pole pieces on the cutting pad according to preset cutting patterns or cutting parameters to form lugs, and finally transport the cut pole pieces to the winding assembly Form a coil.

[0026] Please refer to figure 1 with figure 2 , The ear-shaking machine for lithium battery pole pieces in this embodiment mainly includes a frame 22, and an unwinding assembly 2, two tension control mechanisms, three dust-brushing assemblies, and a cutting pad 20 mounted o...

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Abstract

The invention discloses a terminal forming machine and method for a pole piece of a lithium battery. The terminal forming machine comprises an unwinding component (2), a cutting base plate (20), a laser cutting head (9), a winding component (18) and a control system, wherein the cutting base plate (20) is placed on a pole piece motion path between the unwinding component (2) and the winding component (18), the laser cutting head (9) is arranged over the cutting base plate (20), and the control system is connected with the unwinding component (2), the laser cutting head (9) and the winding component (18) through signals. The terminal forming machine and method have the advantages that the pole producing process quality is remarkably improved, the consistency of a battery cell is guaranteed, the pole producing efficiency is improved, and subsequent handling of the pole producing process is facilitated.

Description

technical field [0001] The present application relates to the field of batteries, in particular to a tab forming machine and a tab forming method for lithium battery pole pieces. Background technique [0002] In the manufacturing process of lithium-ion batteries (especially large-capacity lithium-ion batteries), there are usually two ways to make pole pieces: one way is to use ultrasonic welding technology to weld the pole piece before the battery core is wound. The independent nickel strip lugs are welded on the pole pieces. In this way, the lugs and pole pieces are connected by solder joints. On the one hand, the resistance of the welding place is relatively large, which affects the charging and discharging quality of the battery. On the other hand, if the quality of the ultrasonic welding process is not good Stable or unbalanced speeds of pole piece incoming material and nickel belt material may easily cause problems such as poor welding of tabs, slow production speed, an...

Claims

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Application Information

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IPC IPC(8): H01M4/139
CPCY02E60/122Y02E60/10
Inventor 陈强阳如坤
Owner GEESUN AUTOMATION TECH
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