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

Battery flexible packaging materials

A packaging material and flexible technology, applied in the field of flexible packaging materials, can solve the problems of reduced productivity, poor production timeliness, and various manufacturing processes, and achieve the effect of low thermal expansion coefficient and good dimensional stability

Active Publication Date: 2015-12-02
KUSN APLUS TEC CORP
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the reference to the patent No. 2002-216714 bulletin, it is stated that when the surface of the outer film is coated with a structure containing a lubricating effect of fatty acid amines, it has many manufacturing processes, poor production timeliness, and low productivity. problem exists
In addition, the lubricating component will evaporate during vacuum degassing of the battery and during sealing processing; the evaporated component will adhere to the processing equipment, therefore, it is necessary to remove this component for cleaning, which also causes a serious problem of lowering productivity.

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
  • Battery flexible packaging materials
  • Battery flexible packaging materials
  • Battery flexible packaging materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1: A battery flexible packaging material, consisting of a polyimide film 1, a first adhesive layer 2, a second adhesive layer 3, an aluminum foil layer 4 and a thermoplastic resin unstretched film 5. The aluminum foil layer has On two opposite surfaces, the first adhesive layer and the second adhesive layer are respectively adhered to the two opposite surfaces of the aluminum foil layer, and the polyimide film is adhered to the first adhesive layer Above, the thermoplastic resin unstretched film is adhered to the second adhesive layer, and the total thickness of the battery flexible packaging material is 110 to 130 microns.

[0033] The polyimide film used in this embodiment is mainly composed of the dianhydride monomer 3,3',4,4'-biphenyltetracarboxylic dianhydride (3,3',4,4'-Biphenyltetracarboxylicdianhydride; BTDA) ( 0.7kmol) and 4,4'-Oxydiphthalicanhydride (4,4'-Oxydiphthalicanhydride; ODPA) (0.3kmol) and diamine monomer 1,3'-bis(3-aminophenoxy)benzene (1,3'-Bi...

Embodiment 2

[0036] Embodiment 2: The structure of the flexible battery packaging material of this embodiment is the same as that of Embodiment 1.

[0037] The polyimide film used in this embodiment is mainly composed of dianhydride monomers BTDA (0.7kmol) and ODPA (0.3kmol) and diamine monomers APB-133 (0.8kmol) and 3,4′-Diaminobenzophenone (0.2 kmol) copolymerized polyimide film made by copolymerization; its thickness is 20 microns, and the density is 1443kg / m 3 ; And then apply this copolymerized polyimide film to the battery flexible packaging material.

[0038] The process steps of the battery flexible packaging material of this embodiment are the same as the process steps of the first embodiment.

Embodiment 3

[0039] Embodiment 3: The structure of the flexible battery packaging material of this embodiment is the same as that of Embodiment 1.

[0040] The polyimide film used in this embodiment is mainly composed of dianhydride monomers BTDA (0.7kmol) and ODPA (0.3kmol) and diamine monomers APB-133 (0.75kmol) and 3,4'-Diaminobenzophenone (0.25 kmol) a copolymerized polyimide film formed by copolymerization; its thickness is 25 microns, and the density is 1447kg / m 3 ; And then apply this copolymerized polyimide film to the battery flexible packaging material.

[0041] The process steps of the battery flexible packaging material of this embodiment are the same as the process steps of the first embodiment.

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 discloses a flexible packaging material for a battery. The flexible packaging material is composed of a polyimide film, a first adhesion layer, a second adhesion layer, an aluminum foil layer and a thermoplastic resin undrawn film and is mainly characterized in that the polyimide film is used for replacing a biaxially oriented polyamide film to be applied in aluminum-plastic composite packaging materials. The polyimide film has excellent properties such as low elastic modulus, high tensile strength, low thermal expansion coefficient, low humidity, high heat resistance, chemical resistance, burning resistance, good dimension stability and the like; the flexible packaging material for the battery is formed through pasting with the adhesion layers by adopting the polyimide film with various excellent mechanical properties and thermal properties and matching the aluminum foil layer and the thermoplastic resin undrawn film; and simultaneously, the polyimide film also has the advantages of flame-retardant property, low thermal expansion coefficient, good dimension stability, heat resistance and the like on the safety consideration of the battery use, so that the thermal expansion of the battery after being used and heated is small, and the appearance deformation and expansion of the battery cannot be caused.

Description

Technical field [0001] The invention relates to a flexible packaging material applied to batteries. Background technique [0002] The structure of the biaxially oriented nylon film (BOPA) is that the polyamide molecule contains a polar amide group (-CO-NH-), and the -NH- group can form a hydrogen bond with the -C=O group. The hydrogen bond is formed It is one of the important factors for the high crystallinity of polyamide, but not all molecules in polyamide can be crystallized, and there are some amorphous polyamides, which are amides in the molecular chain of amorphous polyamides. The base can coordinate with water molecules, that is, it has water absorption. Biaxially oriented nylon film (BOPA) has extremely high tensile strength, puncture resistance, flexibility, impact resistance, abrasion resistance, etc. Therefore, BOPA film is particularly suitable for packaging perishable food, medical supplies, and electronic products. Among them, it is used in battery flexible packa...

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 Patents(China)
IPC IPC(8): B32B15/08B32B15/20B65D85/88
CPCB32B27/281
Inventor 张孟浩李建辉
Owner KUSN APLUS TEC CORP
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