Double sticky tape for lithium battery and preparation method for double sticky tape

A double-sided tape, lithium battery technology, applied in the direction of adhesives, adhesive types, film/sheet adhesives, etc., can solve the problems of reducing the service life of lithium batteries, reducing the performance of lithium batteries, affecting the performance of lithium batteries, etc. , to achieve the effect of improving service life, maintaining stability and high stability

Active Publication Date: 2015-05-13
DONGGUAN AOZON ELECTRONICS MATERIAL
View PDF4 Cites 30 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, other impurities cannot be introduced during the production of double-sided tape, otherwise it will affect the performance of lithium batteries
For example, in the prior art, the release agent will be partial

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Double sticky tape for lithium battery and preparation method for double sticky tape
  • Double sticky tape for lithium battery and preparation method for double sticky tape
  • Double sticky tape for lithium battery and preparation method for double sticky tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A double-sided adhesive tape for lithium batteries of the present invention comprises a first sealing hot-melt pressure-sensitive adhesive layer, a base film layer, a second sealing hot-melt pressure-sensitive adhesive layer, and a non-tacky sealing adhesive layer at normal temperature sequentially connected from top to bottom And double-sided silicon-free release film layer.

[0046] The first sealing hot-melt pressure-sensitive adhesive layer of the present embodiment includes the following raw materials in mass percentage:

[0047]

[0048]

[0049] The second sealing hot-melt pressure-sensitive adhesive layer of the present embodiment includes the following raw materials in mass percentage:

[0050]

[0051] The normal temperature non-tack sealant layer of the present embodiment comprises the following raw materials in mass percentage:

[0052]

[0053] The base film layer in this embodiment is a PET film layer.

[0054] The thicknesses of the first se...

Embodiment 2

[0066] A double-sided adhesive tape for lithium batteries of the present invention comprises a first sealing hot-melt pressure-sensitive adhesive layer, a base film layer, a second sealing hot-melt pressure-sensitive adhesive layer, and a non-tacky sealing adhesive layer at normal temperature sequentially connected from top to bottom And double-sided silicon-free release film layer.

[0067] The first sealing hot-melt pressure-sensitive adhesive layer of the present embodiment includes the following raw materials in mass percentage:

[0068]

[0069] The second sealing hot-melt pressure-sensitive adhesive layer of the present embodiment includes the following raw materials in mass percentage:

[0070]

[0071] The normal temperature non-tack sealant layer of the present embodiment comprises the following raw materials in mass percentage:

[0072]

[0073]

[0074] The base film layer in this embodiment is a PET film layer.

[0075] The thicknesses of the first se...

Embodiment 3

[0087] A double-sided adhesive tape for lithium batteries of the present invention comprises a first sealing hot-melt pressure-sensitive adhesive layer, a base film layer, a second sealing hot-melt pressure-sensitive adhesive layer, and a non-tacky sealing adhesive layer at normal temperature sequentially connected from top to bottom And double-sided silicon-free release film layer.

[0088] The first sealing hot-melt pressure-sensitive adhesive layer of the present embodiment includes the following raw materials in mass percentage:

[0089]

[0090] The second sealing hot-melt pressure-sensitive adhesive layer of the present embodiment includes the following raw materials in mass percentage:

[0091]

[0092] The normal temperature non-tack sealant layer of the present embodiment comprises the following raw materials in mass percentage:

[0093]

[0094] The base film layer in this embodiment is a PET film layer.

[0095] The thicknesses of the first sealing hot-me...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a double sticky tape for a lithium battery. The double sticky tape comprises a first sealed hot-melting pressure-sensitive adhesive layer, a basic film layer, a second sealed hot-melting pressure-sensitive adhesive layer, a normal temperature cohesion-less sealed adhesive layer, and a two-sided silicon-free release film layer, which are sequentially connected from top to bottom, wherein one side of the double sticky tape for the lithium battery has the cohesiveness to an aluminium foil and a polyethylene film at normal temperature, and the other side is free of cohesiveness to the polyethylene side when the temperature is 80 DEG C or below, so that the double sticky tape meets the requirement on production technology of the lithium battery; the adhesive layers of the double sticky tape are free of release agent and other impurities, so that the purity of the adhesive layers can be kept; when the adhesive layers are immersed in electrolyte, the double sticky tape is still high in stability, good in corrosion resistance against the electrolyte and free of electrochemical reaction, so that the performance of the lithium battery can be maintained, and the service life of the lithium battery can be prolonged.

Description

technical field [0001] The invention relates to the technical field of bonding supplies, in particular to a double-sided adhesive tape for lithium batteries and a preparation method thereof. Background technique [0002] Due to its high energy density, lithium batteries can be recycled many times, have a long life and low pollution, and are widely used in mobile phones, notebooks and other fields. With the improvement of science and technology, the requirements for lithium batteries in various fields are getting higher and higher, among which high requirements are put forward for the anti-drop performance of lithium batteries, which determines the stability and safety of lithium batteries. The anti-drop performance of lithium batteries is mainly determined by the adhesion between the electrode group and the outer packaging material. If the adhesion between the battery electrode group and the outer packaging material is not good, when the battery moves horizontally or vertica...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C09J7/02C09J153/02C09J123/20C09J123/06C09J123/12C09J157/02C08L25/06C08L9/00C08L53/02C08L57/02
Inventor 陆金亮王宜金郭晓烁张涛辉
Owner DONGGUAN AOZON ELECTRONICS MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap