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Lithium-ion battery positive tab and manufacturing method thereof

A technology of lithium-ion batteries and manufacturing methods, which is applied to battery components, circuits, electrical components, etc., can solve the problems of cumbersome and complicated processes, high production costs, false welding resistance, etc., achieve small resistance, save resources, and avoid false welding. The effect of welding

Inactive Publication Date: 2015-08-05
广东新庙科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that these existing methods have more or less cumbersome and complicated processes, high production costs, and sometimes cause problems such as false welding and increased resistance.

Method used

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  • Lithium-ion battery positive tab and manufacturing method thereof
  • Lithium-ion battery positive tab and manufacturing method thereof
  • Lithium-ion battery positive tab and manufacturing method thereof

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Embodiment Construction

[0038] Such as figure 1 As shown, the positive tab of the lithium ion battery of the present invention includes an aluminum strip 1, the end of the aluminum strip 1 is provided with a nickel-plated layer 11, and the middle position of the aluminum strip 1 is used for bonding. The other end of the ear gel 12 is a non-nickel-plated part 13 .

[0039] The manufacture method of lithium-ion battery positive electrode tab of the present invention, concrete steps are as follows

[0040] (1) Degreasing: put the end part of the aluminum lug made of aluminum strip into a degreasing liquid to degrease under certain conditions, and clean it with water after degreasing;

[0041] (2) Activation: Put the end part of the aluminum lug that has been cleaned after degreasing into the activation solution at room temperature for activation, and clean it with water after activation;

[0042] (3) Nickel plating: Put the end part of the activated aluminum tab into an electroless nickel plating solu...

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Abstract

The invention belongs to the technical field of lithium ion battery manufacture, and particularly discloses a lithium ion battery anode tab and a manufacture method thereof. The lithium ion battery anode tab comprises an aluminum strip, a nickel plating layer is arranged at the tail end of the aluminum strip, and a tab-film for adhesion is arranged in the middle of the aluminum strip. The manufacture method of the lithium ion battery anode tab specifically includes the steps of (1) oil removal; (2) activation; (3) nickel plating; and (4) cleaning and drying. The nickel plating layer plated at the tail end of the lithium ion battery anode tab substitutes for existing soldering nickel strips, a high-temperature soldering process after battery charging is decreased, and the easily appeared problems of pseudo soldering, burn-in, short circuit and even explosion during soldering of a battery are avoided, and the quality of the battery is ensured. Additionally, by the manufacture method, consumption of nickel is greatly reduced, precious resources are saved, production efficiency is improved, and production cost is lowered. The lithium ion battery anode tab prepared by the manufacture method is smaller in resistance, higher in voltage and larger in capacity.

Description

technical field [0001] The invention belongs to lithium-ion battery manufacturing technology, in particular to a lithium-ion battery positive tab and a manufacturing method thereof. Background technique [0002] Lithium-ion battery is the most widely used secondary battery at present, and its manufacturing technology is also improving day by day. There are a large number of patents for the battery as a whole and each part of the battery. For example, the patent number is 201120057292.4, and the announcement number is 201120057292.4, which is a utility model patent for a high-safety lithium battery, which includes the battery body, the battery positive tab and the negative tab. The positive pole tab and the negative pole tab, one of which is connected to the battery body through two nickel strips, because the connection through the nickel strips consumes a lot of nickel material, and nickel is usually connected through a welding process. [0003] In addition, some manufactur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/26
CPCY02E60/10
Inventor 陈伟洲
Owner 广东新庙科技有限公司
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