CN208819916U - A kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function - Google Patents
A kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function Download PDFInfo
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- CN208819916U CN208819916U CN201821023346.3U CN201821023346U CN208819916U CN 208819916 U CN208819916 U CN 208819916U CN 201821023346 U CN201821023346 U CN 201821023346U CN 208819916 U CN208819916 U CN 208819916U
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- ion battery
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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 novel flexible package lithium ion battery aluminum plastic film with heat sinking function successively includes graphene film layer or graphene film/PET composite layer, the first adhesive layer, aluminium foil layer, the second adhesive layer and CPP hot sealing layer.A kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function of the utility model, with efficient heat dissipation performance and anti-hydrolytic performance, it can be used in power battery, radiated by the way of liquid cooling, greatly improve service life and the safety of lithium ion battery.
Description
Technical field
The utility model relates to the plastic-aluminum combined technical field of membrane of power battery Soft Roll, more particularly to one kind to have heat sinking function
Novel flexible package lithium ion battery aluminum plastic film.
Background technique
Lithium ion battery is widely applied by continuing to develop with high-energy density, superior high and low temperature environment adaptability
In multiple product.It is packed product and is also gradually converted into plastic-aluminum flexible packing by hard aluminum hull etc., and the flexible package is by high barrier
Aluminium foil and chemical resistance, heat resistance and flexible plastic film are combined.Currently, the use that soft-package battery is more and more extensive
In power vehicle field.Power vehicle especially pure electric automobile and tandem mix electrical automobile, and cell p ack is using liquid cooling
Mode radiates, and radiating efficiency is high, cooling velocity is fast, to meet the needs of high-power charge and discharge.
The radiating mode of battery pack is divided into active heat removal and passive heat dissipation.Cost required by passive system is relatively low, adopts
The measure taken is also relatively simple.Active system structure is more relative complex, and needs bigger secondary power, but its heat management is more
Added with effect.The heat eliminating medium of battery pack has gas and two kinds of liquid.As a heat transfer medium using gas (air), structure is simple,
Light weight, energy available ventilation when pernicious gas generates, cost is relatively low.But be disadvantageous in that, between medium and battery wall surface
The coefficient of heat transfer is low, and cooling velocity is slow, low efficiency.At present using more.As a heat transfer medium using liquid, medium and battery wall surface
Between the coefficient of heat transfer it is high, cooling velocity is fast.It is disadvantageous in that, sealing requirements are high, and quality is relatively large, and maintenance and maintenance are multiple
It is miscellaneous, the components such as water jacket, heat exchanger are needed, structure is relative complex.The anti-hydrolytic performance of Soft Roll material is required very high.Existing reality
Existing scheme is all made of fluorine carbon coating or adds waterproof layer to improve the waterproofness of aluminum plastic film, and this kind of implementation is predominantly anti-
The infiltration of sealing steam and design, and can not work in liquid cooling system well.
Currently, the outer layer of domestic lithium battery Soft Roll material (aluminum-plastic composite membrane) is nylon (Ny) or polyester (PET)
Nylon co-extrusion layer.Ny is a kind of material of very easy water suction, especially in certain temperature because containing hydrophilic group (amide groups)
Under, intolerant to hot-water soak, it is easy to happen degradation.Outer layer be Ny or PET/Ny aluminum-plastic composite membrane, be assembled into cell p ack it
Afterwards, it is immersed in waterborne liquid for a long time at a certain temperature, it is a series of that interlaminar separation, moisture intrusion, leakage etc. can be generated
Problem, to destroy battery structure.Therefore soft package lithium battery pack can not use liquid-cooled battery thermal management system, cause hot biography
It leads inefficient, is unable to satisfy the demand of the high-power charge and discharge of power battery.Since lithium battery Soft Roll aluminum plastic film cannot be fine
Heat dissipation, it is hot for long-term fever, have loss battery life, or even there are the danger exploded under high temperature.
Utility model content
In view of above-mentioned defect existing in the prior art, the purpose of this utility model proposes a kind of with heat sinking function
Novel flexible package lithium ion battery aluminum plastic film.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function, successively include graphene film layer or
Graphene film/PET composite layer, the first adhesive layer, aluminium foil layer, the second adhesive layer and CPP hot sealing layer.
Further, the graphene film layer with a thickness of 15 μm -25 μm.
Further, the graphene film/PET composite layer is with a thickness of 25 μm -35 μm.
Further, first adhesive layer is made of adhesive for polyurethane or epoxy resin adhesive.
Further, the aluminium foil layer with a thickness of 35 μm -40 μm.
Further, second adhesive layer is made of adhesive for polyurethane or epoxy resin adhesive.
Further, the CPP hot sealing layer with a thickness of 40 μm -80 μm.
The protrusion effect of the utility model are as follows:
A kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function of the utility model has efficient
Heat dissipation performance and anti-hydrolytic performance, can be used in power battery, be radiated by the way of liquid cooling, greatly improve lithium from
The service life of sub- battery and safety.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment 1-3；
Fig. 2 is the structural schematic diagram of the utility model embodiment 4-6.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Embodiment 1
As shown in Figure 1, a kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function of the present embodiment, according to
Secondary includes graphene film layer 1, the first adhesive layer 2, aluminium foil layer 3, the second adhesive layer 4 and CPP hot sealing layer 5.
Graphene film layer 1 with a thickness of 15 μm, graphene film has high thermal conductivity, can greatly disperse lithium battery
Heat can well be dispersed temperature by liquid under power battery pack liquid cooling, and graphene film has strong
Hydrophobicity improves the safety and service life of lithium battery.
First adhesive layer 2 is made of adhesive for polyurethane.
Aluminium foil layer 3 with a thickness of 35 μm.
Second adhesive layer 4 is made of adhesive for polyurethane.
CPP hot sealing layer 5 with a thickness of 40 μm.
Embodiment 2
As shown in Figure 1, a kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function of the present embodiment, according to
Secondary includes graphene film layer 1, the first adhesive layer 2, aluminium foil layer 3, the second adhesive layer 4 and CPP hot sealing layer 5.
Graphene film layer 1 with a thickness of 25 μm, graphene film has high thermal conductivity, can greatly disperse lithium battery
Heat can well be dispersed temperature by liquid under power battery pack liquid cooling, and graphene film has strong
Hydrophobicity improves the safety and service life of lithium battery.
First adhesive layer 2 is made of epoxy resin adhesive.
Aluminium foil layer 3 with a thickness of 40 μm.
Second adhesive layer 4 is made of epoxy resin adhesive.
CPP hot sealing layer 5 with a thickness of 80 μm.
Embodiment 3
As shown in Figure 1, a kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function of the present embodiment, according to
Secondary includes graphene film layer 1, the first adhesive layer 2, aluminium foil layer 3, the second adhesive layer 4 and CPP hot sealing layer 5.
Graphene film layer 1 with a thickness of 20 μm, graphene film has high thermal conductivity, can greatly disperse lithium battery
Heat can well be dispersed temperature by liquid under power battery pack liquid cooling, and graphene film has strong
Hydrophobicity improves the safety and service life of lithium battery.
First adhesive layer 2 is made of adhesive for polyurethane.
Aluminium foil layer 3 with a thickness of 38 μm.
Second adhesive layer 4 is made of epoxy resin adhesive.
CPP hot sealing layer 5 with a thickness of 60 μm.
Embodiment 4
As shown in Fig. 2, a kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function of the present embodiment, according to
Secondary includes graphene film/PET composite layer 11, the first adhesive layer 12, aluminium foil layer 13, the second adhesive layer 14 and CPP hot sealing layer 15.
For graphene film/PET composite layer 11 with a thickness of 25 μm, PET has good thermal stability, further improves
The safety and service life of battery, while the usage amount of graphene, save the cost can also be reduced.
First adhesive layer 12 is made of adhesive for polyurethane.
Aluminium foil layer 13 with a thickness of 35 μm.
Second adhesive layer 14 is made of adhesive for polyurethane.
CPP hot sealing layer 15 with a thickness of 40 μm.
Embodiment 5
As shown in Fig. 2, a kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function of the present embodiment, according to
Secondary includes graphene film/PET composite layer 11, the first adhesive layer 12, aluminium foil layer 13, the second adhesive layer 14 and CPP hot sealing layer 15.
For graphene film/PET composite layer 11 with a thickness of 35 μm, PET has good thermal stability, further improves
The safety and service life of battery, while the usage amount of graphene, save the cost can also be reduced.
First adhesive layer 12 is made of epoxy resin adhesive.
Aluminium foil layer 13 with a thickness of 40 μm.
Second adhesive layer 14 is made of epoxy resin adhesive.
CPP hot sealing layer 15 with a thickness of 80 μm.
Embodiment 6
As shown in Fig. 2, a kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function of the present embodiment, according to
Secondary includes graphene film/PET composite layer 11, the first adhesive layer 12, aluminium foil layer 13, the second adhesive layer 14 and CPP hot sealing layer 15.
For graphene film/PET composite layer 11 with a thickness of 30 μm, PET has good thermal stability, further improves
The safety and service life of battery, while the usage amount of graphene, save the cost can also be reduced.
First adhesive layer 12 is made of adhesive for polyurethane.
Aluminium foil layer 13 with a thickness of 38 μm.
Second adhesive layer 14 is made of epoxy resin adhesive.
CPP hot sealing layer 15 with a thickness of 60 μm.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (7)
1. a kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function, it is characterised in that: successively include graphite
Alkene film layer or graphene film/PET composite layer, the first adhesive layer, aluminium foil layer, the second adhesive layer and CPP hot sealing layer.
2. a kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function according to claim 1, special
Sign is: the graphene film layer with a thickness of 15 μm -25 μm.
3. a kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function according to claim 1, special
Sign is: the graphene film/PET composite layer is with a thickness of 25 μm -35 μm.
4. a kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function according to claim 1, special
Sign is: first adhesive layer is made of adhesive for polyurethane or epoxy resin adhesive.
5. a kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function according to claim 1, special
Sign is: the aluminium foil layer with a thickness of 35 μm -40 μm.
6. a kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function according to claim 1, special
Sign is: second adhesive layer is made of adhesive for polyurethane or epoxy resin adhesive.
7. a kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function according to claim 1, special
Sign is: the CPP hot sealing layer with a thickness of 40 μm -80 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821023346.3U CN208819916U (en) | 2018-06-29 | 2018-06-29 | A kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821023346.3U CN208819916U (en) | 2018-06-29 | 2018-06-29 | A kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function |
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| CN208819916U true CN208819916U (en) | 2019-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821023346.3U Active CN208819916U (en) | 2018-06-29 | 2018-06-29 | A kind of novel flexible package lithium ion battery aluminum plastic film with heat sinking function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210126312A1 (en) * | 2019-10-23 | 2021-04-29 | Korea Aluminium Co.,Ltd | Secondary battery pouch film containing graphene |
| CN114889249A (en) * | 2022-05-27 | 2022-08-12 | 珠海市赛纬电子材料股份有限公司 | Aluminum-plastic composite film for lithium ion battery and preparation method thereof |
-
2018
- 2018-06-29 CN CN201821023346.3U patent/CN208819916U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210126312A1 (en) * | 2019-10-23 | 2021-04-29 | Korea Aluminium Co.,Ltd | Secondary battery pouch film containing graphene |
| CN114889249A (en) * | 2022-05-27 | 2022-08-12 | 珠海市赛纬电子材料股份有限公司 | Aluminum-plastic composite film for lithium ion battery and preparation method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
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. |
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| CP01 | Change in the name or title of a patent holder |