CN206884319U - A kind of flexible packing lithium ion battery aluminum plastic film - Google Patents
A kind of flexible packing lithium ion battery aluminum plastic film Download PDFInfo
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- CN206884319U CN206884319U CN201720634779.1U CN201720634779U CN206884319U CN 206884319 U CN206884319 U CN 206884319U CN 201720634779 U CN201720634779 U CN 201720634779U CN 206884319 U CN206884319 U CN 206884319U
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- low pressure
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- plastic film
- pressure cold
- lithium ion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a kind of flexible packing lithium ion battery aluminum plastic film, successively including PET/PA external protections, the first adhesive layer, the first graphene film layer, the second adhesive layer, the first low pressure cold deposited aluminum, aluminium foil layer, the second low pressure cold deposited aluminum and CPP hot sealing layers.The utility model provides a kind of flexible packing lithium ion battery aluminum plastic film, using the graphene film of good mechanical properties, improves heat dispersion, can be radiated so as to improve the life-span of battery and safety；More preferable pliability is brought to aluminum plastic film, danger coefficient is reduced, more preferable scouring depth mouldability can be realized, compared to other techniques, low pressure cold spraying aluminium operability is more preferable, and can further reduce the thickness of aluminium foil, that is, reduces the usage amount of aluminium；The presence of pin hole is reduced, further strengthens the barrier and sealing of aluminum plastic film.
Description
Technical field
The utility model belongs to technical field of lithium ion, more particularly to a kind of flexible packing lithium ion battery plastic-aluminum
Film.
Background technology
The advantages that lithium-ion-power cell is because of its excellent power out-put characteristic and long lifespan, by continuing to develop, with height
Energy density, superior high and low temperature environment adaptability are widely used in multiple product.But the performance of lithium-ion-power cell
It is more sensitive to temperature change, Large Copacity, high-power LiFePO4 (LiFePO particularly used in power vehicle4) lithium ion
Battery.Lithium battery can produce high temperature after long-term use, and it is packed product and is gradually converted into plastic-aluminum flexible packing by hard aluminum hull etc.,
The flexible package is combined by the aluminium foil and chemical resistance of high barrier, heat resistance and flexible plastic sheeting.Lithium ion
Battery flexible package aluminum plastic film includes the aluminium foil of high barrier, but aluminium foil, when thickness is less than below 0.2mm, meeting is inevitable
Pin hole be present, and thickness is smaller, pin hole is more, and then has had a strong impact on the barrier and sealing of aluminum plastic film.At present for subtracting
The pin hole of few aluminium foil does not have effective implementation, and less company has plasma arc sprayed-on Al layer and plasma passivation film
Etc. processing method.Flexible package aluminum plastic film has pliability, during lithium battery use, can discharge the unexpected gas that produces and be drawn
The supercharging risen, but be easy for making aluminium foil produce micro-crack once producing bubbling after long-term use, in turn result in letting out for interior liquid
Dew even explodes.Lithium battery Soft Roll aluminum plastic film has high heat resistance, but producing high temperature after a long time use can not but have
The radiating of effect, due to the limitation of housing material, lithium battery electronic product is always in the presence of for a long time using hot show of generating heat
As for radiating also without effective processing method.
The content of the invention
In view of the defects of above-mentioned prior art is present, the purpose of this utility model is to propose a kind of flexible packing lithium ion battery
Use aluminum plastic film.
The purpose of this utility model will be achieved by the following technical programs：
A kind of flexible packing lithium ion battery aluminum plastic film, successively including PET/PA external protections, the first adhesive layer, the first stone
Black alkene film layer, the second adhesive layer, the first low pressure cold deposited aluminum, aluminium foil layer, the second low pressure cold deposited aluminum and CPP heat-sealings
Layer.
Further, the thickness of the PET/PA external protections is 15 μm -25 μm.
Further, first adhesive layer and second adhesive layer are respectively by polyurethanes or epoxy resin adhesive
Class adhesive is formed.
Further, the first graphene film layer be Flexible graphene radiate film, first graphene film
The thickness of layer is 25 μm, has excellent heat dispersion, can greatly disperse lithium battery heat, and graphene have it is high
Mechanical property, there is good intensity and elasticity, the internal pressure of lithium battery bubbling can be suppressed to greatest extent, improve lithium electricity
The security and service life in pond.
Further, the thickness of the aluminium foil layer is 30 μm -40 μm, and the two sides of the aluminium foil layer passes through low pressure cold spraying aluminium
Processing forms the first low pressure cold deposited aluminum and the second low pressure cold deposited aluminum, so as to effectively block aluminium foil
Pin hole, pin hole quantity is reduced, improve barrier, sealing and the paracentesis resistance of aluminium foil so that security and service life
There is bigger raising.
Further, the first low pressure cold deposited aluminum is identical with the second low pressure cold deposited aluminum thickness, described
Low pressure cold deposited aluminum thickness is 1 μm -3 μm.
Further, the thickness of the CPP hot sealing layers is 20 μm -40 μm.
Further, to be additionally provided with the second graphene between the second low pressure cold deposited aluminum and the CPP hot sealing layers thin
Film layer, can be with significantly more efficient protection aluminium foil while radiating so that and aluminium foil layer is more difficult to produce micro-crack or puncture, so as to
The leakage of interior liquid is avoided, greatly improves the security and service life of lithium battery；Aluminum plastic film is effectively improved simultaneously
Toughness, more preferable scouring depth mouldability can be realized.
Prominent effect of the present utility model is：The utility model provides a kind of flexible packing lithium ion battery aluminum plastic film,
Using the graphene film of good mechanical properties, heat dispersion is improved, can be radiated so as to improve the life-span of battery and safety；Give
Aluminum plastic film brings more preferable pliability, reduces danger coefficient, can realize more preferable scouring depth mouldability, compared to other techniques,
Low pressure cold spraying aluminium operability is more preferable, and can further reduce the thickness of aluminium foil, that is, reduces the usage amount of aluminium；Reduce pin hole
In the presence of the further barrier and sealing for strengthening aluminum plastic film.
Just accompanying drawing in conjunction with the embodiments below, is described in further detail to specific embodiment of the present utility model, so that this
Utility model technical scheme is more readily understood, grasped.
Brief description of the drawings
Fig. 1 is the utility model embodiment 1-3 structural representation；
Fig. 2 is the structural representation of the utility model embodiment 4.
Embodiment
Embodiment 1
As shown in figure 1, a kind of flexible packing lithium ion battery aluminum plastic film of the present embodiment, successively including being protected outside PET/PA
The 1, first adhesive layer 2 of layer, the first graphene film layer 3, the second adhesive layer 4, the first low pressure cold deposited aluminum 5, aluminium foil layer 6, the
Two low pressure cold deposited aluminums 7 and CPP hot sealing layers 8.
Wherein, the thickness of PET/PA external protections 1 is 15 μm.
First adhesive layer 2 and the second adhesive layer 4 are made up of polyurethane tackifier respectively.
First graphene film layer 3 is Flexible graphene radiating film, and the thickness of the first graphene film layer 3 is 25 μm.
The thickness of aluminium foil layer 6 is 30 μm, and the two sides of aluminium foil layer 6 forms the first low pressure cold by the processing of low pressure cold spraying aluminium and sprayed
Apply the low pressure cold deposited aluminum 7 of aluminium lamination 5 and second.
The thickness of first low pressure cold deposited aluminum 5 is 1 μm, and the thickness of the second low pressure cold deposited aluminum 7 is 1 μm
The thickness of CPP hot sealing layers 8 is 20 μm.
Embodiment 2
As shown in figure 1, a kind of flexible packing lithium ion battery aluminum plastic film of the present embodiment, successively including being protected outside PET/PA
The 1, first adhesive layer 2 of layer, the first graphene film layer 3, the second adhesive layer 4, the first low pressure cold deposited aluminum 5, aluminium foil layer 6, the
Two low pressure cold deposited aluminums 7 and CPP hot sealing layers 8.
Wherein, the thickness of PET/PA external protections 1 is 25 μm.
First adhesive layer 2 and the second adhesive layer 4 are made up of epoxy resin adhesive class adhesive respectively.
First graphene film layer 3 is Flexible graphene radiating film, and the thickness of the first graphene film layer 3 is 25 μm.
The thickness of aluminium foil layer 6 is 40 μm, and the two sides of aluminium foil layer 6 forms the first low pressure cold by the processing of low pressure cold spraying aluminium and sprayed
Apply the low pressure cold deposited aluminum 7 of aluminium lamination 5 and second.
The thickness of first low pressure cold deposited aluminum 5 is 2 μm, and the thickness of the second low pressure cold deposited aluminum 7 is 2 μm
The thickness of CPP hot sealing layers 8 is 40 μm.
Embodiment 3
As shown in figure 1, a kind of flexible packing lithium ion battery aluminum plastic film of the present embodiment, successively including being protected outside PET/PA
The 1, first adhesive layer 2 of layer, the first graphene film layer 3, the second adhesive layer 4, the first low pressure cold deposited aluminum 5, aluminium foil layer 6, the
Two low pressure cold deposited aluminums 7 and CPP hot sealing layers 8.
Wherein, the thickness of PET/PA external protections 1 is 20 μm.
First adhesive layer 2 and the second adhesive layer 4 are made up of epoxy resin adhesive class adhesive respectively.
First graphene film layer 3 is Flexible graphene radiating film, and the thickness of the first graphene film layer 3 is 25 μm.
The thickness of aluminium foil layer 6 is 35 μm, and the two sides of aluminium foil layer 6 forms the first low pressure cold by the processing of low pressure cold spraying aluminium and sprayed
Apply the low pressure cold deposited aluminum 7 of aluminium lamination 5 and second.
The thickness of first low pressure cold deposited aluminum 5 is 3 μm, and the thickness of the second low pressure cold deposited aluminum 7 is 3 μm
The thickness of CPP hot sealing layers 8 is 30 μm.
Embodiment 4
As shown in Fig. 2 a kind of flexible packing lithium ion battery aluminum plastic film of the present embodiment, successively including being protected outside PET/PA
The 11, first adhesive layer 12 of layer, the first graphene film layer 13, the second adhesive layer 14, the first low pressure cold deposited aluminum 15, aluminium foil layer
16th, the second low pressure cold deposited aluminum 17 and CPP hot sealing layers 19.Between second low pressure cold deposited aluminum 17 and CPP hot sealing layers 19 also
Provided with the second graphene film layer 18.
Wherein, the thickness of PET/PA external protections 11 is 20 μm.
First adhesive layer 12 and the second adhesive layer 14 are made up of epoxy resin adhesive class adhesive respectively.
First graphene film layer 13 is Flexible graphene radiating film, and the thickness of the first graphene film layer 13 is 25 μ
m。
The thickness of aluminium foil layer 16 is 35 μm, and the two sides of aluminium foil layer 16 forms the first low pressure cold by the processing of low pressure cold spraying aluminium
The low pressure cold deposited aluminum 17 of deposited aluminum 15 and second.
The thickness of first low pressure cold deposited aluminum 5 is 1 μm, and the thickness of the second low pressure cold deposited aluminum 7 is 1 μm
The thickness of CPP hot sealing layers 19 is 30 μm.
The utility model still has numerous embodiments, all technologies formed using equivalents or equivalent transformation
Scheme, all fall within the scope of protection of the utility model.
Claims (7)
- A kind of 1. flexible packing lithium ion battery aluminum plastic film, it is characterised in that：Include PET/PA external protections, first gluing successively Layer, the first graphene film layer, the second adhesive layer, the first low pressure cold deposited aluminum, aluminium foil layer, the second low pressure cold deposited aluminum and CPP hot sealing layers.
- A kind of 2. flexible packing lithium ion battery aluminum plastic film according to claim 1, it is characterised in that：Outside the PET/PA The thickness of protective layer is 15 μm -25 μm.
- A kind of 3. flexible packing lithium ion battery aluminum plastic film according to claim 1, it is characterised in that：Described first is gluing Layer and second adhesive layer are made up of polyurethanes or epoxy resin adhesive class adhesive respectively.
- A kind of 4. flexible packing lithium ion battery aluminum plastic film according to claim 1, it is characterised in that：First graphite Alkene film layer is Flexible graphene radiating film, and the thickness of the first graphene film layer is 25 μm.
- A kind of 5. flexible packing lithium ion battery aluminum plastic film according to claim 1, it is characterised in that：The aluminium foil layer Thickness is 30 μm -40 μm, and the two sides of the aluminium foil layer forms the first low pressure cold spraying aluminium by low pressure cold spraying aluminium processing Layer and the second low pressure cold deposited aluminum, the first low pressure cold deposited aluminum and the second low pressure cold deposited aluminum thickness phase Together, the low pressure cold deposited aluminum thickness is 1 μm -3 μm.
- A kind of 6. flexible packing lithium ion battery aluminum plastic film according to claim 1, it is characterised in that：The CPP heat-sealings The thickness of layer is 20 μm -40 μm.
- A kind of 7. flexible packing lithium ion battery aluminum plastic film according to claim 1, it is characterised in that：Second low pressure The second graphene film layer is additionally provided between cold spraying aluminium lamination and the CPP hot sealing layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720634779.1U CN206884319U (en) | 2017-06-02 | 2017-06-02 | A kind of flexible packing lithium ion battery aluminum plastic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720634779.1U CN206884319U (en) | 2017-06-02 | 2017-06-02 | A kind of flexible packing lithium ion battery aluminum plastic film |
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| CN206884319U true CN206884319U (en) | 2018-01-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987616A (en) * | 2018-06-04 | 2018-12-11 | 界首市天鸿新材料股份有限公司 | A kind of lithium ion battery flexible package paracentesis resistance aluminum-plastic composite membrane |
| CN109228575A (en) * | 2018-10-30 | 2019-01-18 | 上海恩捷新材料科技有限公司 | A kind of plastic-aluminum membrane structure |
| CN110370738A (en) * | 2019-06-28 | 2019-10-25 | 佛山佛塑科技集团股份有限公司 | A kind of lithium ion battery flexible packaging film |
| CN112701389A (en) * | 2019-10-23 | 2021-04-23 | 韩国铝业株式会社 | Graphene-containing film for secondary battery bag |
-
2017
- 2017-06-02 CN CN201720634779.1U patent/CN206884319U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987616A (en) * | 2018-06-04 | 2018-12-11 | 界首市天鸿新材料股份有限公司 | A kind of lithium ion battery flexible package paracentesis resistance aluminum-plastic composite membrane |
| CN108987616B (en) * | 2018-06-04 | 2021-03-02 | 界首市天鸿新材料股份有限公司 | Puncture-resistant aluminum-plastic composite film for flexible package of lithium ion battery |
| CN109228575A (en) * | 2018-10-30 | 2019-01-18 | 上海恩捷新材料科技有限公司 | A kind of plastic-aluminum membrane structure |
| CN110370738A (en) * | 2019-06-28 | 2019-10-25 | 佛山佛塑科技集团股份有限公司 | A kind of lithium ion battery flexible packaging film |
| CN112701389A (en) * | 2019-10-23 | 2021-04-23 | 韩国铝业株式会社 | Graphene-containing film for secondary battery bag |
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Address after: 213000 No.20 Changyang Road, West Taihu science and Technology Industrial Park, Wujin District, Changzhou City, Jiangsu Province Patentee after: Xinlun new energy materials (Changzhou) Co.,Ltd. Address before: 213000 No.20 Changyang Road, West Taihu science and Technology Industrial Park, Wujin District, Changzhou City, Jiangsu Province Patentee before: SELEN COMPOSITE MATERIAL (CHANGZHOU) CO.,LTD. |