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A kind of yellow glue for soft package lithium battery and using method

A technology of soft-packing lithium batteries and yellow glue, which is applied to secondary batteries, battery pack components, circuits, etc., can solve the problems of high rate of tab loose welding defects, complex operation of tab fixing methods, and poor welding, etc., to achieve Good metal bonding effect, good bonding effect, and convenient operation

Active Publication Date: 2018-01-30
DONGGUAN ADF BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing tab fixing method is complicated to operate, and generally requires the following steps: 1. Take double-sided tape 2, stick double-sided tape 3, take double-sided tape surface protection paper 4, fold the tab and press it tightly
Therefore, the existing process requires a lot of labor, and at least 3 people are required for one process, which is inefficient, and the aluminum-plastic film is stabbed by the tweezers when the glue is applied, and the tabs are easily loosened after the glue is pasted, resulting in poor subsequent welding, especially when using automatic welding. When welding equipment, the tabs are loose and the rate of poor welding is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of yellow glue for soft package lithium battery, raw material is taken by weighing:

[0026] Chloroprene rubber 500g;

[0027] Maleimide resin 300g;

[0028] Alcohol 100g;

[0029] Acetone 100g.

[0030] Chloroprene rubber and maleimide resin are mixed homogeneously, then add alcohol and acetone and stir, obtain the yellow gum prepared in Example 1 after mixing, then put the prepared yellow gum into a glue dispenser, pass The glue dispenser sticks the yellow glue on the positive ear or the battery package, and then folds the positive ear aluminum to nickel to fix it.

Embodiment 2

[0032] A kind of yellow glue for soft package lithium battery, raw material is taken by weighing:

[0033] Chloroprene rubber 600g;

[0034] Maleimide resin 250g;

[0035] Alcohol 100g;

[0036] Acetone 50g.

[0037] Chloroprene rubber and maleimide resin are mixed homogeneously, then add alcohol and acetone and stir, obtain the yellow glue prepared in Example 2 after mixing, then put the prepared yellow glue into a dispenser, pass The glue dispenser sticks the yellow glue on the positive tab or on the battery package, and then folds the positive tab from aluminum to nickel and fixes it.

Embodiment 3

[0039] A kind of yellow glue for soft package lithium battery, raw material is taken by weighing:

[0040] Chloroprene rubber 700g;

[0041] Maleimide resin 200g;

[0042] Alcohol 50g;

[0043] Acetone 50g.

[0044] Chloroprene rubber and maleimide resin are mixed homogeneously, then add alcohol and acetone and stir, obtain the yellow glue that embodiment 3 prepares after mixing, then the yellow glue that makes is loaded into glue dispensing machine, by The glue dispenser sticks the yellow glue on the positive ear or the battery package, and then folds the positive ear aluminum to nickel to fix it.

[0045] The soft-pack lithium-ion battery prepared in Examples 1-3 was measured for the fixing performance of the positive tab, and compared with the existing positive tab fixed with double-sided adhesive tape, it was found that the fixing performance of the positive tab bonded by the yellow glue of the present invention It is far superior to double-sided adhesive tape, and the...

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PUM

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Abstract

The present invention now provides a yellow rubber for a soft-packed lithium battery. The raw materials include chloroprene rubber, maleimide resin, alcohol and acetone, and the parts by weight of the raw materials are respectively: chloroprene rubber 40- 70; maleimide resin 10‑40; alcohol 1‑15; acetone 1‑15. The advantage of the present invention is that the fixing material is changed from double-sided adhesive to self-configured yellow glue, and the yellow glue is bonded to the positive tab or the battery package through a glue dispenser, and then the positive tab is folded over and fixed from aluminum to nickel. Compared with the existing method, the method has good bonding effect, high efficiency and convenient operation, and effectively improves the phenomenon of weak bonding generated when double-sided adhesive is used.

Description

technical field [0001] The invention belongs to the field of lithium battery processing and preparation, and in particular relates to yellow glue for soft-pack lithium batteries and a use method thereof. Background technique [0002] Tabs are a raw material for lithium-ion polymer battery products. For example, mobile phone batteries, bluetooth batteries, and notebook batteries used in our daily life all need to use tabs. The battery is divided into positive and negative poles, and the tabs are the metal conductors that lead the positive and negative poles out of the battery. In layman's terms, the ears of the positive and negative poles of the battery are the contact points when charging and discharging. [0003] The film is the insulating part on the tab. Its function is to prevent the short circuit between the metal strip and the aluminum-plastic film when the battery is packaged, and it is heated (about 170 ° C) and the aluminum-plastic film is heat-sealed and bonded to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/26H01M10/0525H01M50/531
CPCH01M10/0525H01M50/531Y02E60/10
Inventor 余建荣
Owner DONGGUAN ADF BATTERY