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Anode ear for polymer or liquid flexible packing lithium ion electric core, and producing method thereof

A production method and flexible packaging technology, applied in circuits, electrical components, battery pack components, etc., can solve the problems of affecting the normal service life of products that affect the yield, troublesome nickel-transfer operations, and easy de-soldering of the pole ears, and reduce the number of aluminum poles. The process of ear-to-nickel, reducing the number of bending times and improving the quality

Active Publication Date: 2009-04-22
连云港海创电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the operation of converting nickel is cumbersome, and the tabs after converting nickel are easy to be desoldered and easily broken, which affects the production yield and the normal service life of the product

Method used

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  • Anode ear for polymer or liquid flexible packing lithium ion electric core, and producing method thereof
  • Anode ear for polymer or liquid flexible packing lithium ion electric core, and producing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1. refer to Figure 1-2 . A positive tab for polymer or liquid soft-packaged lithium-ion batteries, comprising an aluminum tab body 1, a tab PP film 2 is provided on the tab body 1, and a tab body 1 is provided at one end of the tab body 1. There is a nickel-plated layer3.

Embodiment 2

[0017] Example 2. In the positive tab for polymer or liquid soft-packaged lithium-ion batteries described in Example 1, the nickel-plated layer 3 is plated on one end of the tab body 1 in a wrapped form.

Embodiment 3

[0018] Example 3. In the positive tab for polymer or liquid soft-packaged lithium-ion batteries described in Example 1, the nickel-plated layer 3 is plated on both the front and back surfaces of one end of the tab body 1 .

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Abstract

The invention discloses an anode tab used in a polymer or liquid soft package lithium ion cell. The anode tab comprises an aluminum tab body on which a tab PP film is arranged. The anode tab is characterized in that a nickel coating is arranged on an end of the tab body; the nickel coating can be plated on the end of the tab body in a wrapped plating manner; the nickel coating can also be respectively plated on the front side of the tab body and the back side of the tab body; and the depth of the nickel coating at one side of the tab body can be 0.5-3.0 microns. The invention also discloses a production method of the tab used in the polymer lithium ion cell. The anode tab can be directly soldered with a protective circuit, which reduces the bending frequency of the tab, causes the tab not to be broken off easily, does not result in the problem of sealingoff (i.e., soldered joints fall off), effectively improves the product quality, prolongs the service life of the product and reduces a working procedure of changing the aluminum tabs into the nickel tabs for manufacturers of cells, and shortens the production period.

Description

technical field [0001] The invention relates to an accessory for a polymer or liquid soft-packaged lithium-ion battery cell, in particular to a positive pole ear for a polymer or liquid soft-packaged lithium-ion battery cell; the invention also relates to a production method for the positive pole ear. Background technique [0002] The tabs used in polymer or liquid flexible packaging lithium ion batteries in the prior art include positive tabs (aluminum tabs) and negative tabs (nickel tabs). During the production and use of the battery factory, polymer lithium-ion batteries or soft-pack lithium-ion batteries need to be welded with protective circuit boards or wires. Since aluminum and solder have no affinity, soldering cannot be performed directly, so when the positive tab (aluminum tab) is used, it is necessary to laser weld or ultrasonically weld a section of nickel strip at one end of the positive tab (aluminum tab) to protect the circuit pole. Welding is to transfer nic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/30H01M50/534H01M50/536
CPCY02E60/12Y02E60/10
Inventor 李学兵
Owner 连云港海创电子科技有限公司
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