Lug processing method

A processing method and tab technology, used in metal processing equipment, electrode manufacturing, manufacturing tools, etc., can solve problems such as poor welding, false welding, and leakage of protective tapes, simplify the processing process, improve the quality of the winding core, and provide The effect of production efficiency

Inactive Publication Date: 2009-12-30
GEESUN AUTOMATION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the one hand, numerous processes will affect the improvement of production efficiency, and on the other hand, it will bring some unstable quality factors, such as poor welding, fals

Method used

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Embodiment Construction

[0016] Figure 3-Figure 5 The pole piece obtained by adopting the tab processing method of the present invention is shown.

[0017] In this embodiment, the active material 11 is coated on the current collector 10 first, and then the tab processing is performed.

[0018] The specific process of tab processing is as follows:

[0019] a. If image 3 As shown, a processing belt 12 of a certain width is defined on the lower edge of the current collector 10, the width of the processing belt 12 is d, and the upper area of ​​the processing belt 12 is coated with an active material 11;

[0020] b. According to the required position, size and shape, cut the processing band 12 of the current collector 10 with a laser to obtain the tab 13 integrated with the current collector 10, see Figure 4 and Figure 5 .

[0021] Such as image 3 As shown, the current collector 10 is a whole, and the current collector 10 is divided into two areas: the strip-shaped area near the edge is the proc...

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Abstract

The invention provides a lug processing method, which comprises the following steps: a. a processing belt with certain width is determined on the edge of a current collector of a pole piece; b. according to the needed position, size and shape, the processing belt of the current collector is cut by laser so as to obtain the lug integrative with the current collector. The lug is processed on the current collector by using the lug processing method and is integrative with the current collector; the lug and the current collector form a very reliable electrical property connection; the processed lug has non deckle edge and is beneficial to increase the quality of a roll core; the processing process is simplified; working procedures such as mechanical cutting of the lug, the lug being welded on the current collector, protective adhesive plaster being pasted on the lug after the lug being welded on the current collector and the like and possibly occurring technology shortcomings are omitted; the processing method is beneficial to increase producing efficiency and save cost; the processing method can be implemented by adding a laser cutting device on the corresponding position of the existing coiling production line; therefore, the lug processing and the electrical core coiling can be carried out on the same production line.

Description

【Technical field】 [0001] The invention relates to battery manufacturing technology, in particular to a tab processing method with good performance. 【Background technique】 [0002] In the prior art, the tabs on the battery pole pieces are generally independent of the pole pieces, and need to be unwound from the tabs in separate rolls and mechanically cut into strips (see figure 1 and figure 2 The lug 2) in the battery is welded to the corresponding position on the current collector. [0003] figure 1 and figure 2 It shows the situation after the tab 2 is welded to the current collector 10 . Before the battery core is wound, it is necessary to perform mechanical cutting of the tab 2, welding the tab 2 to the current collector 10, welding the tab 2 to the current collector 10, and then pasting the protective tape. On the one hand, numerous processes will affect the improvement of production efficiency, and on the other hand, it will bring some unstable quality factors, s...

Claims

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Application Information

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IPC IPC(8): H01M2/26B23K26/00H01M4/04H01M50/531H01M50/536
CPCY02E60/12H01M2/26Y02E60/10H01M50/536
Inventor 许光宁徐国根李建强
Owner GEESUN AUTOMATION TECH
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