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Double-sided adhesive tape and lithium ion battery

A lithium-ion battery and double-sided adhesive tape technology, which is applied to battery pack components, circuits, adhesives, etc., can solve problems such as inaccurate positioning of the adhesive, bubbles, skew, etc., and achieve the effect of wrinkling the adhesive

Pending Publication Date: 2021-11-23
ZHUHAI COSMX BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, tapes have more inconvenience and limitations on some materials, such as light and soft polymer films, metal foils, gauze, etc., because these materials are relatively soft, and tapes exist due to the external force of the glue. Problems such as inaccurate positioning of the glue, wrinkling, skewing, and bubbles

Method used

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  • Double-sided adhesive tape and lithium ion battery
  • Double-sided adhesive tape and lithium ion battery
  • Double-sided adhesive tape and lithium ion battery

Examples

Experimental program
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Effect test

Embodiment 1

[0066] The double-sided adhesive tape provided in this embodiment includes a second bonding layer, a substrate layer, a first bonding layer and a release layer that are stacked in sequence, wherein:

[0067] The substrate layer is a PET layer with a thickness of 12 μm;

[0068] The second adhesive layer is obtained by polymerization of 40 parts by mass of hard monomer (VAc / LMA), 60 parts by mass of soft monomer (2-EHA / BA), and 0.5 parts by mass of initiator. It is hot-melt and resistant to electrolysis Liquid adhesive;

[0069] The thickness of the second adhesive layer is 4 μm;

[0070] The first adhesive layer consists of 20 mass parts of polystyrene, 15 mass parts of polydiene, 15 mass parts of styrene-butadiene copolymer, 8 mass parts of petroleum resin, 3 mass parts of fillers and 0.6 mass parts Parts of the initiator are polymerized and are pressure-sensitive and not resistant to electrolyte binders;

[0071] The thickness of the first adhesive layer is 4 μm;

[0072...

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Abstract

The invention provides a double-sided adhesive tape and a lithium ion battery. The invention provides a double-sided adhesive tape. The double-sided adhesive tape comprises a first bonding layer, a base material layer and a second bonding layer which are sequentially stacked. The first bonding layer comprises one or more of organic silicon binders, epoxy binders, polyurethane binders, polyacrylic acid binders and rubber binders, and the bonding strength of the first bonding layer is larger than that of the second bonding layer. The double-sided adhesive tape provided by the invention comprises the two bonding layers, and the bonding strength of the first bonding layer is greater than that of the second bonding layer, so that the double-sided adhesive tape can be effectively and accurately bonded on the surface of a light soft material in a manner of transferring an object to assist in adhesive tape bonding, and the problems of wrinkling, poor positioning, bubbles and the like in adhesive tape bonding are effectively solved.

Description

technical field [0001] The invention relates to a double-sided adhesive tape and a lithium ion battery, and relates to the technical field of lithium ion batteries. Background technique [0002] Adhesive tape has the characteristics of light weight, environmental protection, and excellent bonding performance, so it is widely used in various scenes of life and industrial production, such as sealing, fixing, repairing, warning, etc. However, tapes have more inconvenience and limitations on some materials, such as light and soft polymer films, metal foils, gauze, etc., because these materials are relatively soft, and tapes exist due to the external force of the glue. Problems such as inaccurate positioning of the glue, wrinkling, skewing, and bubbles. Therefore, how to develop an adhesive tape suitable for light and soft materials has become a technical problem to be solved urgently by those skilled in the art. Contents of the invention [0003] The invention provides a dou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/25C09J7/38C09J7/35H01M50/46
CPCC09J7/255C09J7/385C09J7/35H01M50/461C09J2301/1242C09J2203/33C09J2467/006C09J2301/302C09J2301/304C09J2433/00C09J2425/00Y02E60/10
Inventor 盛东辉徐腾飞彭宁
Owner ZHUHAI COSMX BATTERY CO LTD
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