CN209718835U

CN209718835U - A kind of outer layer has the aluminum-plastic composite membrane of efficient waterproof function

Info

Publication number: CN209718835U
Application number: CN201822015561.5U
Authority: CN
Inventors: 刘德福; 邹强
Original assignee: Huizhou Baiquan River Industrial Co Ltd
Current assignee: Huizhou Guanglin Material Yao Technology Co., Ltd.
Priority date: 2018-12-04
Filing date: 2018-12-04
Publication date: 2019-12-03
Anticipated expiration: 2028-12-04

Abstract

The utility model discloses the aluminum-plastic composite membranes that a kind of outer layer has efficient waterproof function, are successively made of from outside to inside efficient water proof nano coating outer layer, nylon layer, outer adhesive layer, aluminium foil layer, interior adhesive layer and CPP internal layer.Its distinguishing feature is: outer layer has efficient waterproof function; the coating high-efficient water proof coating outer layer on the nylon layer of aluminum-plastic composite membrane; its waterproof performance is excellent; efficiently it can prevent moisture from entering nylon layer; the security performance of aluminum-plastic composite membrane is obviously improved; preferably protection aluminium foil layer then protects the components such as the battery core inside aluminum-plastic composite membrane, and the performance of aluminum-plastic composite membrane itself is unaffected；Efficiently water proof coating outer layer has the function of self-regeneration simultaneously, even if the efficient water proof coating molecule of certain a part or multiple portions is destroyed, other regions close on molecule meeting Autonomic Migration Framework and come to fill gap, repairs the surface texture being destroyed, keeps integrality；With wearability；Operating method is simple and easy.

Description

A kind of outer layer has the aluminum-plastic composite membrane of efficient waterproof function

Technical field

The utility model relates to the plastic-aluminum combined technical field of membrane of power lithium-ion battery Soft Roll more particularly to a kind of outer layer to have There is the aluminum-plastic composite membrane of super waterproof function.

Background technique

Aluminum-plastic composite membrane is the critical material of soft bag lithium ionic cell outer packing, and distinguishing feature is: light weight, thickness Thin, configuration design flexibly etc., is widely used in fields such as energy storage class, consumer electronics, power category lithium ion batteries.

Aluminum-plastic composite membrane is a kind of composite material, the housing material as lithium ion battery, it is necessary to have following to make With: to air, water, the oxygen of environment have very high stability.Existing aluminum-plastic composite membrane is specifically by outer layer nylon layer, intermediate aluminium Layers of foil, internal layer hot sealing layer are constituted, can be in aluminum-plastic composite membrane in the prior art in order to pursue higher scour hole depth and punching hole effect Surface applies the erucyl amide or oleamide with smooth performance, can also reach certain water proof effect in this way, but erucic acid There is the molecule of smoothness can move over time in packaging, transport, use process for amide or oleamide etc. Move failure.

Utility model content

Based on above-mentioned the deficiencies in the prior art, the purpose of this utility model be propose a kind of outer layer have efficiently every Water function, coating and the aluminum-plastic composite membrane with self-regeneration function.

To achieve the goals above, the utility model adopts the technical scheme that

A kind of outer layer has the aluminum-plastic composite membrane of efficient waterproof function, it is characterised in that: from outside to inside successively by efficiently every Water nano coating outer layer, nylon layer, outer adhesive layer, aluminium foil layer, interior adhesive layer and CPP internal layer are constituted；

The efficient water proof nano coating outer layer is coated on nylon layer；

The outer adhesive layer is sticked between the nylon layer and the aluminium foil layer；

The interior adhesive layer is sticked between the aluminium foil layer and the CPP internal layer.

Preferably, described 1-5 μm of thickness of efficient water proof nano coating outer coating.

Preferably, the nylon layer is made of polyamide；Nylon layer with a thickness of 10 μm -40 μm.

Preferably, the outer adhesive layer and the interior adhesive layer are respectively by acrylic compounds adhesive, polyurethanes glue One of glutinous agent, Epoxy adhesive and Polyester adhesive are constituted；The thickness of the thickness of outer adhesive layer and interior adhesive layer Degree is 3 μm -5 μm.

Preferably, the aluminium foil layer with a thickness of 20 μm -50 μm.

Preferably, the CPP internal layer is a kind of polypropylene screen；CPP internal layer with a thickness of 10 μm -30 μm.

Preferably, the CPP internal layer with a thickness of 15 μm -25 μm.

The positive effect of the utility model are as follows:

A kind of aluminum-plastic composite membrane of the utility model, distinguishing feature is: outer layer has efficient waterproof function, multiple in plastic-aluminum On the nylon layer for closing film: coating high-efficient water proof coating outer layer, waterproof performance is excellent, efficiently can prevent moisture from entering nylon Layer, the security performance of aluminum-plastic composite membrane are obviously improved, and preferably protect aluminium foil layer, and then protect the battery core inside aluminum-plastic composite membrane Equal components, and the performance of aluminum-plastic composite membrane itself is unaffected；Efficiently water proof coating outer layer has the function of self-regeneration simultaneously, i.e., It is destroyed the efficient water proof coating outer layer molecule of certain a part, some region or multiple portions, molecule meeting is closed in other regions Autonomic Migration Framework comes to fill gap, repairs the surface texture being destroyed, and keeps integrality: having wearability, operating method is simple It is easy.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment 1-4.

Marked in the figure: efficient water proof nano coating outer layer 1, nylon layer 2, outer adhesive layer 3, aluminium foil layer 4, interior adhesive layer 5, CPP internal layer 6.

Specific embodiment

Below with reference to Fig. 1, to the technical solution of the utility model carry out it is clear, be fully described by:

A kind of outer layer has the aluminum-plastic composite membrane of efficient waterproof function, from outside to inside successively by efficient water proof nano coating outside Layer 1, nylon layer 2, outer adhesive layer 3, aluminium foil layer 4, interior adhesive layer 5 and CPP internal layer 6 are constituted.

The efficient water proof nano coating outer layer 1 is the polyurethane elastomer and partially hydrophobic molecule of perfluorinated processing It mixes.Its hydrophobic molecule includes fluoroacrylic resin.

The efficient water proof nano coating outer layer 1 is coated on nylon layer 2 using solvent coating method, and solid content is 2%-20%, preferably 3%-15% apply 1-5 μm of thickness.

The nylon layer 2 is made of polyamide (nylon-6)；Nylon layer 2 with a thickness of 10 μm -40 μm.

The outer adhesive layer 3 and the interior adhesive layer 5 respectively by acrylic compounds adhesive, polyurethanes adhesive, One of Epoxy adhesive and Polyester adhesive are constituted；The thickness of outer adhesive layer 3 and the thickness of interior adhesive layer 5 are equal It is 3 μm -5 μm.

Outer adhesive layer 3 is sticked between the nylon layer 2 and the aluminium foil layer 4.

The aluminium foil layer 4 with a thickness of 20 μm -50 μm.

The interior adhesive layer 5 is sticked between the aluminium foil layer 4 and the CPP internal layer 6.

The CPP internal layer 6 is the polypropylene screen of a kind of tensionless winkler foundation, non-directional, and production method is poly- using curtain coating isotactic Propylene is co-extruded with random polypropylene.

CPP internal layer 6 with a thickness of 10 μm -30 μm, preferably 15 μm -25 μm.

The characteristic of CPP film is as follows:

1. transparency is high, flatness is good；2. temperature tolerance is good, centainly very degree of scraping does not lose flexibility to tool, and softening point is about 140 Degree；3. good hand touch, shading can have heat sealability, it is not easy anti-viscous；4. damp proof humidity resistance is excellent, there is certain resistance oxygen, oil resistant Property；5. nontoxic, tasteless, odorless, wholesomeness is good, density is in 0.92g/cm3.

Embodiment 1

Efficient water proof nano coating 1 is coated on nylon layer 2 using solvent coating method, solid content 4%.

Nylon layer 2 with a thickness of 22 μm.

The thickness of outer adhesive layer 3 and the thickness of interior adhesive layer 5 are respectively 4 μm.

Aluminium foil layer 4 with a thickness of 37 μm.

CPP internal layer 6 with a thickness of 12 μm.

Embodiment 2

Efficient water proof nano coating 1 is coated on nylon layer 2 using solvent coating method, solid content 13%.

Nylon layer 2 with a thickness of 32 μm.

Aluminium foil layer 4 with a thickness of 42 μm.

CPP internal layer 6 with a thickness of 28 μm.

Embodiment 3

Nylon layer 2 with a thickness of 26 μm.

The thickness of outer adhesive layer 3 and the thickness of interior adhesive layer 5 are respectively 3.5 μm.

Aluminium foil layer 4 with a thickness of 39 μm.

CPP internal layer 6 with a thickness of 17 μm.

Embodiment 4

Efficient water proof nano coating 1 is coated on nylon layer 2 using solvent coating method, solid content 12%.

Nylon layer 2 with a thickness of 22 μm -28 μm.

The thickness of outer adhesive layer 3 and the thickness of interior adhesive layer 5 are respectively 5 μm.

Aluminium foil layer 4 with a thickness of 40 μm.

CPP internal layer 6 with a thickness of 25 μm.

The foregoing is merely the preferable specific embodiments of the utility model, it is clear that described embodiment 1-4 is only The utility model a part of the embodiment, rather than whole embodiments, the protection scope of the utility model are not limited thereto, Anyone skilled in the art within the technical scope disclosed by the utility model, technology according to the present utility model Scheme and its utility model design are subject to equivalent substitution or change, should be covered within the scope of the utility model.

Claims

1. the aluminum-plastic composite membrane that a kind of outer layer has efficient waterproof function, it is characterised in that: from outside to inside successively by efficient water proof Nano coating outer layer (1), nylon layer (2), outer adhesive layer (3), aluminium foil layer (4), interior adhesive layer (5) and CPP internal layer (6) structure At；

The efficient water proof nano coating outer layer (1) is coated on nylon layer (2)；

The outer adhesive layer (3) is sticked between the nylon layer (2) and the aluminium foil layer (4)；

The interior adhesive layer (5) is sticked between the aluminium foil layer (4) and the CPP internal layer (6).

2. aluminum-plastic composite membrane according to claim 1, it is characterised in that: the efficient water proof nano coating outer layer (1) applies 1-5 μm of thickness.

3. aluminum-plastic composite membrane according to claim 1, it is characterised in that: the nylon layer (2) is made of polyamide；Nylon Layer (2) with a thickness of 10 μm -40 μm.

4. aluminum-plastic composite membrane according to claim 1, it is characterised in that: the outer adhesive layer (3) and the interior gluing Oxidant layer (5) is respectively by one of acrylic compounds adhesive, polyurethanes adhesive, Epoxy adhesive and Polyester adhesive It constitutes；The thickness of outer adhesive layer (3) and the thickness of interior adhesive layer (5) are 3 μm -5 μm.

5. aluminum-plastic composite membrane according to claim 1, it is characterised in that: the aluminium foil layer (4) with a thickness of 20 μm of -50 μ m。

6. aluminum-plastic composite membrane according to claim 1, it is characterised in that: the CPP internal layer (6) with a thickness of 10 μm of -30 μ m。

7. aluminum-plastic composite membrane according to claim 1 or 6, it is characterised in that: the CPP internal layer (6) is a kind of polypropylene Film；CPP internal layer (6) with a thickness of 15 μm -25 μm.