CN110265589B - Flexible battery packaging material - Google Patents
Flexible battery packaging material Download PDFInfo
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- CN110265589B CN110265589B CN201910534887.5A CN201910534887A CN110265589B CN 110265589 B CN110265589 B CN 110265589B CN 201910534887 A CN201910534887 A CN 201910534887A CN 110265589 B CN110265589 B CN 110265589B
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- flexible
- layer
- packaging material
- nano metal
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- 239000005022 packaging material Substances 0.000 title claims abstract description 23
- 239000010410 layer Substances 0.000 claims abstract description 53
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 239000011241 protective layer Substances 0.000 claims abstract description 12
- 239000012790 adhesive layer Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 6
- -1 polyethylene terephthalate Polymers 0.000 claims description 20
- 239000004743 Polypropylene Substances 0.000 claims description 10
- 229920001155 polypropylene Polymers 0.000 claims description 10
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 8
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000008393 encapsulating agent Substances 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 5
- 238000002955 isolation Methods 0.000 abstract description 3
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000005021 flexible packaging material Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/10—Batteries
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Composite Materials (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention relates to the technical field of flexible batteries, in particular to a flexible battery packaging material; the packaging material comprises a flexible outer layer and a flexible inner layer, a nano metal layer is arranged between the flexible outer layer and the flexible inner layer, a protective layer is arranged between the nano metal layer and the flexible inner layer, the protective layer is connected with the flexible inner layer through an adhesive layer, and the thickness of the nano metal layer is 150nm to 550nm; the invention provides a brand new flexible battery packaging material which is applied to packaging of flexible bendable batteries and provides good sealing isolation, and after the batteries are manufactured, the materials can be bent for more than 2 ten thousand times under the test condition that the bending radius R is 15mm, and the battery performance is not influenced, so that the problem that the packaging material is inexhaustible in the technical field of flexible batteries is solved.
Description
Technical Field
The invention relates to the technical field of flexible batteries, in particular to a flexible battery packaging material.
Background
As flexible screens are beginning to be used commercially in smart devices, the trend of smart devices becoming flexible is coming to the market, and along with this, there is an increasing demand for flexible batteries in the market.
At present, the research and development of the lithium ion flexible battery capable of being bent and folded for multiple times in the global scope are just started, and the battery used by the traditional wearable device is hard and inflexible, and is from hard to soft, and the existing battery can not be met from materials to processes. Due to the application requirement of battery flexibility, the structural design and material selection in the battery core need to be completely new, and the existing packaging material can not meet the use requirement and needs to be newly developed.
At the present stage, after the battery is manufactured by using a common packaging material, tests show that when the battery is bent with a small radius or bent with a large radian, the bending times of the battery are insufficient, and after repeated bending for a plurality of times, plastic deformation occurs to cause cockling, so that the battery core is extruded and even punctured, and serious potential safety hazards are caused. Therefore, on the technical development route of research and development and popularization of the flexible battery, a flexible packaging material suitable for packaging the flexible battery must be provided, 20000 times of repeated bending can be achieved without plastic deformation, and the basic use requirement of the battery can be met.
Disclosure of Invention
The purpose of the invention is: the flexible battery packaging material fills the technical blank of the flexible battery, is fully flexible, can be bent repeatedly for 20000 times under the test condition that the bending radius is 15mm, and meets the use requirement.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a flexible battery packaging material, packaging material includes flexible skin and flexible inlayer, be provided with the nanometer metal level between flexible skin and the flexible inlayer, be provided with the inoxidizing coating between nanometer metal level and the flexible inlayer, be connected through the bond line between inoxidizing coating and the flexible inlayer, the nanometer metal level be 150nm to 550nm for thickness.
Further, the flexible outer layer is made of polyethylene terephthalate or polybutylene terephthalate.
Further, the protective layer is an extremely compact self-repairing film, and approximate spheres with the diameter of 200nm are closely contacted with each other to form the self-repairing film on the surface of the nano metal layer.
Furthermore, the bonding layer is a polar bonding layer, and the polar bonding layer is made of modified polypropylene or modified polyethylene.
Further, the thickness of the flexible outer layer is 10-30 microns.
Further, the thickness of the protective layer is 50nm to 300nm.
Furthermore, the thickness of the bonding layer is 5-25 μm.
Further, the thickness of the flexible inner layer is 45-70 μm.
Furthermore, the nano metal layer is made of aluminum, copper or nickel.
The technical scheme adopted by the invention has the beneficial effects that:
the invention provides a novel flexible battery packaging material which is applied to packaging of flexible and bendable batteries, provides good sealing isolation and solves the problem that no packaging material can be used in the technical field of flexible batteries.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: the flexible metal coating comprises a flexible outer layer 1, a nano metal layer 2, a protective layer 3, an adhesive layer 4 and a flexible inner layer 5.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
FIG. 1 is a schematic structural diagram of the present invention.
Example 1
Referring to fig. 1, a flexible battery packaging material, in which a flexible outer layer 1 is made of polybutylene terephthalate (PBT) with a thickness of 30 μm, an isolation layer 2 is a 400nm nano-metal layer, a protection layer 3 is a 50nm ultra-dense self-repairing film, the self-repairing film is formed by 200nm approximate spheres in diameter abutting against each other, a polar adhesive layer 4 is 8 μm linear graft modified polypropylene (MPP), and a flexible inner layer 5 is 55 μm polypropylene (PP).
Example 2
Referring to fig. 1, a flexible battery packaging material includes a flexible outer layer 1 made of polyethylene terephthalate (PET) with a thickness of 10 μm, a nano metal layer 2 made of a 550nm dense copper layer, a protective layer 3 made of a 50nm ultra-dense self-repairing film formed by closely contacting 200nm spheres, a polar adhesive layer 4 made of 5 μm star-shaped graft modified polypropylene (MPP), and a flexible inner layer 5 made of 70 μm Polyethylene (PE).
Example 3
Referring to fig. 1, a flexible battery packaging material, in which a flexible outer layer 1 is made of polyethylene terephthalate (PET) with a thickness of 25 μm, a nano metal layer 2 is a 150nm dense metal nickel layer, a protective layer 3 is a 300nm extremely dense self-repairing film, the self-repairing film is formed by 200nm diameter approximate spheres abutting against each other, a polar adhesive layer 4 is 25 μm linear graft modified polypropylene (MPP), and a flexible inner layer 5 is 50 μm polypropylene (PP).
Example 4
Referring to fig. 1, a flexible battery packaging material includes a flexible outer layer 1 made of polyethylene terephthalate (PET) having a thickness of 12 μm, a metal nanometal layer 2 formed of a 250nm dense aluminum metal layer, a protective layer 3 formed of a 50nm ultra-dense self-repairing film formed of 200nm spheres in close contact with each other on a surface of a separator, a polar adhesive layer 4 made of 20 μm star modified polypropylene (MPP), and a flexible inner layer 5 made of 45 μm Polyethylene (PE).
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. A flexible battery encapsulant, characterized by: the packaging material comprises a flexible outer layer and a flexible inner layer, a nano metal layer is arranged between the flexible outer layer and the flexible inner layer, a protective layer is arranged between the nano metal layer and the flexible inner layer, the protective layer is connected with the flexible inner layer through an adhesive layer, and the thickness of the nano metal layer is 150nm to 550nm;
the protective layer is an extremely compact self-repairing film, and the self-repairing film is formed on the surface of the nano metal layer by the mutual close contact of approximate spheres with the diameter of 200 nm.
2. The flexible battery packaging material of claim 1, wherein: the flexible outer layer is made of polyethylene terephthalate or polybutylene terephthalate.
3. A flexible battery encapsulating material according to claim 1, characterized in that: the adhesive layer is a polar adhesive layer, and the polar adhesive layer is made of modified polypropylene or modified polyethylene.
4. The flexible battery packaging material of claim 1, wherein: the thickness of the flexible outer layer is 10-30 mu m.
5. The flexible battery packaging material of claim 1, wherein: the thickness of the protective layer is 50nm to 300nm.
6. A flexible battery encapsulating material according to claim 1, characterized in that: the thickness of the bonding layer is 5-25 μm.
7. The flexible battery packaging material of claim 1, wherein: the thickness of the flexible inner layer is 45-70 mu m.
8. A flexible battery encapsulating material according to claim 1, characterized in that: the nano metal layer is made of aluminum, copper or nickel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910534887.5A CN110265589B (en) | 2019-06-20 | 2019-06-20 | Flexible battery packaging material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910534887.5A CN110265589B (en) | 2019-06-20 | 2019-06-20 | Flexible battery packaging material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110265589A CN110265589A (en) | 2019-09-20 |
| CN110265589B true CN110265589B (en) | 2023-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910534887.5A Active CN110265589B (en) | 2019-06-20 | 2019-06-20 | Flexible battery packaging material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110265589B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013033067A1 (en) * | 2011-08-31 | 2013-03-07 | Avery Dennison Corporation | Laminate composition, film and related methods |
| WO2016010044A1 (en) * | 2014-07-16 | 2016-01-21 | 凸版印刷株式会社 | Casing material for electricity storage device and electricity storage device including same |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2698723C (en) * | 1999-12-17 | 2013-01-22 | Dai Nippon Printing Co., Ltd. | Packaging material for polymer cell and method for producing the same |
| US20070037060A1 (en) * | 2005-08-12 | 2007-02-15 | Lee Young G | All-solid-state primary film battery and method of manufacturing the same |
| US20140242316A1 (en) * | 2008-07-10 | 2014-08-28 | Avery Dennison Corporation | Laminate Composition, Film and Related Methods |
| TWI511351B (en) * | 2010-10-14 | 2015-12-01 | Toppan Printing Co Ltd | Lithium-ion battery exterior materials |
| KR101315672B1 (en) * | 2012-07-06 | 2013-10-08 | (주)오렌지파워 | Electrode assembly, battery having the same and method of fabricating battery |
| DE102013224069A1 (en) * | 2013-11-26 | 2015-05-28 | Robert Bosch Gmbh | Self-healing battery bag cell foil composite |
| CN103943697B (en) * | 2014-03-28 | 2016-08-31 | 京东方科技集团股份有限公司 | Flexible and transparent solaode and preparation method thereof |
| TWI597880B (en) * | 2016-03-07 | 2017-09-01 | 輝能科技股份有限公司 | Flexible package |
| CN106784434A (en) * | 2017-03-27 | 2017-05-31 | 贺万军 | A kind of aluminum plastic film |
| KR102495286B1 (en) * | 2017-10-13 | 2023-02-01 | 주식회사 엘지에너지솔루션 | Packaging for flexible secondary battery and flexible secondary battery including the same |
| CN108493359B (en) * | 2018-03-16 | 2019-10-25 | 常州斯威克光伏新材料有限公司 | A kind of power lithium-ion battery aluminum-plastic composite membrane |
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2019
- 2019-06-20 CN CN201910534887.5A patent/CN110265589B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013033067A1 (en) * | 2011-08-31 | 2013-03-07 | Avery Dennison Corporation | Laminate composition, film and related methods |
| WO2016010044A1 (en) * | 2014-07-16 | 2016-01-21 | 凸版印刷株式会社 | Casing material for electricity storage device and electricity storage device including same |
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| CN110265589A (en) | 2019-09-20 |
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