Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Composite aluminum-plastic film as well as preparation method and application thereof

A composite aluminum and plastic film technology, applied in chemical instruments and methods, applications, household appliances, etc., can solve the problems of aluminum-plastic film without flame retardancy and poor safety, so as to improve safety, enhance flame retardancy, The effect of high heat resistance

Pending Publication Date: 2021-02-05
HUBEI JINQUAN NEW MATERIALS CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the aluminum-plastic film that described method obtains does not have flame retardancy, and safety is relatively poor

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
  • Composite aluminum-plastic film as well as preparation method and application thereof
  • Composite aluminum-plastic film as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] This embodiment provides a method for preparing a composite aluminum-plastic film, the preparation method comprising:

[0042] (1) Nylon fibers are immersed in the flame retardant tetrakis hydroxymethyl phosphorus chloride, the mass concentration of the flame retardant is 25wt%, and the immersion time is 24h to obtain the nylon fibers after the flame retardant treatment;

[0043] (2) Nylon fibers treated with a flame retardant at a mass ratio of 1:1 are blended with poly-p-phenylenebenzobisoxazole fibers to obtain a protective layer with a thickness of 2.5 μm;

[0044](3) Laminating the protective layer obtained in step (2) with an aluminum layer with a thickness of 40 μm and a polypropylene layer with a thickness of 35 μm to obtain a composite aluminum-plastic film.

Embodiment 2

[0046] This embodiment provides a method for preparing a composite aluminum-plastic film, the preparation method comprising:

[0047] (1) Nylon fibers are immersed in the flame retardant tetrakis hydroxymethyl phosphorus chloride, the mass concentration of the flame retardant is 28wt%, and the immersion time is 22h to obtain the nylon fibers after the flame retardant treatment;

[0048] (2) Nylon fibers treated with a flame retardant with a mass ratio of 2:3 are blended with poly-p-phenylene benzobisoxazole fibers to obtain a protective layer with a thickness of 2.7 μm;

[0049] (3) Laminating the protective layer obtained in step (2) with an aluminum layer with a thickness of 38 μm and a polypropylene layer with a thickness of 38 μm to obtain a composite aluminum-plastic film.

Embodiment 3

[0051] This embodiment provides a method for preparing a composite aluminum-plastic film, the preparation method comprising:

[0052] (1) Nylon fibers are immersed in the flame retardant tetrakis hydroxymethyl phosphorus chloride, the mass concentration of the flame retardant is 22wt%, and the immersion time is 26h to obtain the nylon fibers after the flame retardant treatment;

[0053] (2) Nylon fibers treated with a flame retardant at a mass ratio of 1:2 are blended with poly-p-phenylene benzobisoxazole fibers to obtain a protective layer with a thickness of 2.2 μm;

[0054] (3) Laminating the protective layer obtained in step (2) with an aluminum layer with a thickness of 42 μm and a polypropylene layer with a thickness of 32 μm to obtain a composite aluminum-plastic film.

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 composite aluminum-plastic film as well as a preparation method and application thereof. The composite aluminum-plastic film comprises a protective layer, a metal layer anda polymer heat-seal layer which are arranged in sequence, and the protective layer is obtained by blending nylon fibers treated by a flame retardant and high-temperature-resistant fibers. The selectedfibers in the protective layer have the advantages of high strength, high heat resistance, no combustion in flame, no shrinkage and the like; and due to the existence of the flame retardant, the flame retardance of the protective layer can be further improved, and the safety of a soft package battery is further improved. The composite aluminum-plastic film disclosed by the invention can help to construct a soft package battery with high safety and high strength.

Description

technical field [0001] The invention belongs to the technical field of batteries, and in particular relates to a composite aluminum-plastic film, its preparation method and application. Background technique [0002] Common commercial lithium-ion batteries can be divided into three types according to their packaging forms: steel cylindrical type, square steel (aluminum) shell type and pouch battery. Among them, the pouch battery uses thin and soft aluminum-plastic composite film as its outer packaging material, which has the advantages of light weight, low cost and flexible design, and has become a hot spot in the industry. [0003] The aluminum-plastic composite film used in pouch batteries is the key material in pouch batteries, but the aluminum-plastic films used in commercial pouch batteries today are not flame retardant. When there is a short circuit or overcharge inside the battery, its safety cannot be guaranteed. In order to improve the safety performance of pouch b...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/085B32B15/14B32B15/20B32B27/06B32B27/32B32B27/28B32B33/00B32B37/10B32B38/08
CPCB32B5/024B32B15/14B32B15/20B32B15/085B32B27/06B32B27/32B32B33/00B32B38/08B32B37/10B32B2262/0261B32B2262/02B32B2307/306B32B2439/40
Inventor 卢海燕
Owner HUBEI JINQUAN NEW MATERIALS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com