Anode tab, soft packing lithium ion battery and method for manufacturing anode tab

A technology of positive tabs and tabs, which is applied to secondary batteries, battery pack components, circuits, etc., can solve the problems of increasing labor costs and achieve the effects of reducing labor costs, strengthening mechanical strength, and improving life expectancy

Inactive Publication Date: 2012-07-25
深圳市巴特瑞科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the exposed aluminum strip will not be bent when the tab is bent, which can reduce the rate of battery scrapping, but on the other hand, it increases the labor cost

Method used

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  • Anode tab, soft packing lithium ion battery and method for manufacturing anode tab
  • Anode tab, soft packing lithium ion battery and method for manufacturing anode tab
  • Anode tab, soft packing lithium ion battery and method for manufacturing anode tab

Examples

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Embodiment 1

[0046] The positive tab of Example 1 is made according to the following steps: first, paste tab glue on the lower surface of the aluminum strip, and the tab glue attached to the lower surface extends to the front end of the aluminum strip; The lower surface of the rear part is lapped, and this lap can be laser welded or ultrasonically welded; finally, the ear glue is pasted on the upper surface of the aluminum strip.

[0047] In this way, when the positive tab is heat-sealed into the soft package shell 5, the tab glue 4 is attached behind the bent part 1a of the positive tab aluminum strip, and the tab glue 4 greatly enhances the bending strength of the aluminum strip 1a, improving the The service life of the pouch lithium-ion battery.

[0048] The soft pack lithium ion battery of embodiment 2 of the present invention is as Figures 9 to 12 As shown, different from Example 1, the tab glue 3 attached to the upper surface of the aluminum strip 1 also extends forward to the uppe...

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Abstract

The invention discloses an anode tab, a soft packing lithium ion battery and a method for manufacturing the anode tab. The anode tab comprises an aluminum strip and a nickel strip; the central part of the aluminum strip comprises a tab sealing area; a layer of tab glue is attached on each of the upper and lower surfaces of the sealing area of the aluminum strip glue, wherein the width of the tab glue is more than that of the tab; the upper surface on the front part of the aluminum strip is in lap joint with the lower surface on the rear part of the nickel strip; the tab glue attached on the lower surface of the aluminum strip is extended to the lower surface of the lap-jointed part of the aluminum strip and the nickel strip. The soft packing lithium ion battery comprises a soft packing shell and the anode tab, wherein an anode tab socket of the soft packing shell and the anode tab are pressed and sealed through the tab glue attached on the anode tab. According to the anode tab, the soft packing lithium ion battery and the method for manufacturing the anode tab, the outer mechanical intensity of an node tab aluminum-to-nickel joint is enhanced by extending the tab glue, the nickel strip is guaranteed not to contact with electrolyte in a battery cavity; the service life of the soft packing lithium ion battery is prolonged and the labor cost of a manufacturer is reduced.

Description

[technical field] [0001] The invention relates to a soft pack battery and a soft pack capacitor, in particular to a positive tab, a soft pack lithium ion battery and a method for manufacturing the positive tab. [Background technique] [0002] Soft-pack lithium-ion batteries are composed of positive and negative electrode materials, electrolyte, diaphragm, tabs and shells. In order for lithium-ion batteries to charge and discharge normally, the inner cavity of the battery must be vacuum-free. The tab is the part used by the battery to conduct electricity. One end of it is in the inner cavity of the battery, and the other end is exposed outside the battery. [0003] The structure of the pouch capacitor is similar to that of the pouch battery. The difference is that the invisible positive and negative electrode materials and electrolytes are different. The pouch capacitor has the same structure as the positive ear of the pouch battery. [0004] The positive electrode of the so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/26H01M10/0525
CPCY02E60/122Y02E60/10
Inventor 范能文
Owner 深圳市巴特瑞科技有限公司
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