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Novel high-barrier anti-corrosion composite flexible packaging film for lithium battery and preparation method of composite flexible packaging film

A flexible packaging film and high-barrier technology, which is applied in the field of new high-barrier corrosion-resistant lithium battery composite flexible packaging film and its preparation, can solve the problems of low strength, wear resistance, poor corrosion resistance and anti-oxidation effect, and prolong the service life , reduce damage, and expand the use of the effect

Inactive Publication Date: 2017-12-15
诏安县鹏达机械设计部
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects of low strength, poor wear resistance, corrosion resistance and anti-oxidation effect of existing lithium battery materials, and provide a new type of high-barrier corrosion-resistant lithium battery composite flexible packaging film and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A novel high-barrier corrosion-resistant lithium battery composite flexible packaging film, the formulation of which includes the following components in parts by weight:

[0022] 45 parts of nano-calcium carbonate, 35 parts of carbon nanotubes, 25 parts of oleic acid amide, 30 parts of maleic anhydride, 10 parts of graphene, 10 parts of vinyl silicone resin, 5 parts of perchlorethylene, 8 parts of aluminum oxide, white carbon 3 parts of black, 5 parts of glycerol ester copolymer, 5 parts of sepiolite, 3 parts of graphite powder, 25 parts of polytetrafluoroethylene, 30 parts of benzotriazole, 12 parts of polyvinyl butyral, 12 parts of twelve 12 parts of carbon alcohol ester, 8 parts of novolak resin, 5 parts of phosphite, 3 parts of nano-titanium dioxide, 6 parts of phenyl o-hydroxybenzoate, 2 parts of stearic acid, 5 parts of methylisothiazolinone, poly 1 part of ester, 2 parts of thermoplastic polyurethane elastomer, 0.5 part of rosin.

[0023] A preparation method o...

Embodiment 2

[0029] A novel high-barrier corrosion-resistant lithium battery composite flexible packaging film, the formulation of which includes the following components in parts by weight:

[0030] 60 parts of nano calcium carbonate, 20 parts of carbon nanotubes, 30 parts of oleic acid amide, 20 parts of maleic anhydride, 18 parts of graphene, 6 parts of vinyl silicone resin, 8 parts of perchlorethylene, 4 parts of aluminum oxide, white carbon 5 parts of black, 3 parts of glycerol resin copolymer, 8 parts of sepiolite, 2 parts of graphite powder, 30 parts of polytetrafluoroethylene, 20 parts of benzotriazole, 16 parts of polyvinyl butyral, 12 parts of twelve 8 parts of carbon alcohol ester, 10 parts of novolak resin, 3 parts of phosphite, 6 parts of nano-titanium dioxide, 3 parts of phenyl o-hydroxybenzoate, 3 parts of stearic acid, 3 parts of methylisothiazolinone, poly 2 parts of ester, 1 part of thermoplastic polyurethane elastomer, 1 part of rosin.

[0031] A preparation method of a...

Embodiment 3

[0037]A novel high-barrier corrosion-resistant lithium battery composite flexible packaging film, the formulation of which includes the following components in parts by weight:

[0038] 55 parts of nano calcium carbonate, 30 parts of carbon nanotubes, 28 parts of oleic acid amide, 26 parts of maleic anhydride, 16 parts of graphene, 8 parts of vinyl silicone resin, 6 parts of perchlorethylene, 6 parts of aluminum oxide, white carbon 4 parts of black, 4 parts of glycerol resin copolymer, 6 parts of sepiolite, 3 parts of graphite powder, 28 parts of polytetrafluoroethylene, 26 parts of benzotriazole, 14 parts of polyvinyl butyral, 12 parts of twelve 10 parts of carbon alcohol ester, 8 parts of novolak resin, 4 parts of phosphite, 5 parts of nano-titanium dioxide, 6 parts of phenyl o-hydroxybenzoate, 3 parts of stearic acid, 4 parts of methylisothiazolinone, poly 2 parts of ester, 2 parts of thermoplastic polyurethane elastomer, 1 part of rosin.

[0039] The particle diameter of ...

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Abstract

The invention discloses a novel high-barrier anti-corrosion composite flexible packaging film for a lithium battery. A formula of the novel high-barrier anti-corrosion composite flexible packaging film contains the following components in parts by weight: 45-60 parts of nano-calcium carbonate, 20-35 parts of carbon nanotubes, 25-30 parts of oleamide, 20-30 parts of maleic anhydride, 10-18 parts of graphene, 6-10 parts of vinyl organic silicon resin, 5-8 parts of sepiolite, 25-30 parts of polytetrafluoroethylene, 20-30 parts of benzotriazole, 12-16 parts of polyvinyl butyral, 8-12 parts of dodecanol ester, 8-10 parts of linear phenolic resin and the balance of an aid. The novel high-barrier anti-corrosion composite flexible packaging film for the lithium battery is light and flexible and has high strength, high wear resistance, corrosion resistance, aging resistance and warping resistance, so that the sealing property of the lithium battery is improved, the service life of the lithium battery is effectively prolonged, and the use range of the lithium battery is greatly expanded.

Description

technical field [0001] The invention relates to a novel high-barrier and corrosion-resistant lithium battery composite flexible packaging film and a preparation method thereof. Background technique [0002] Commonly used lithium battery packaging materials mainly include metal and aluminum-plastic film. Compared with metal packaging, aluminum plastic film provides a [0003] Lightweight and low-cost packaging, but it also puts forward higher requirements for materials. At present, the common aluminum-plastic film generally uses nylon (PA) as the surface layer, but nylon (PA) is easily corroded and has no blocking effect when encountering the electrolyte used in lithium batteries. Therefore, once the surface of the aluminum-plastic film comes into contact with the electrolyte, it will The formation of white spots not only affects the appearance of the lithium battery, but also may infiltrate and corrode the aluminum foil of the barrier layer in severe cases, affecting the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/18C08L83/07C08L75/04C08L61/06C08L29/14C08K13/04C08K3/26C08K7/24C08K5/20C08K5/1539
CPCC08L27/18C08J5/18C08J2327/18C08J2483/04C08K2003/265C08K2201/003C08K2201/011C08L2201/08C08L2203/16C08L2203/20C08L2205/035C08L2207/04C08L83/04C08L75/04C08L61/06C08L29/14C08K13/04C08K3/26C08K7/24C08K5/20C08K5/1539
Inventor 王星河
Owner 诏安县鹏达机械设计部