CN113346038A - Preparation method and preparation device of composite current collector - Google Patents

Preparation method and preparation device of composite current collector Download PDF

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Publication number
CN113346038A
CN113346038A CN202010141572.7A CN202010141572A CN113346038A CN 113346038 A CN113346038 A CN 113346038A CN 202010141572 A CN202010141572 A CN 202010141572A CN 113346038 A CN113346038 A CN 113346038A
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CN
China
Prior art keywords
roller
metal layer
polymer substrate
current collector
polymer
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Pending
Application number
CN202010141572.7A
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Chinese (zh)
Inventor
周华
李磊
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Ningde Amperex Technology Ltd
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Ningde Amperex Technology Ltd
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Priority to CN202010141572.7A priority Critical patent/CN113346038A/en
Publication of CN113346038A publication Critical patent/CN113346038A/en
Pending legal-status Critical Current

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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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0419—Methods of deposition of the material involving spraying
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/043—Processes of manufacture in general involving compressing or compaction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/665—Composites
    • H01M4/667—Composites in the form of layers, e.g. coatings
    • 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

A method of making a composite current collector, comprising: depositing a first metal layer on a cooling roller, wherein the cooling roller is arranged opposite to a press roller; winding a polymer substrate on an unwinding reel, and enabling the polymer substrate to pass through a gap between the cooling roller and the pressing roller and be wound on a winding reel, wherein the polymer substrate comprises a first surface far away from the pressing roller; forming a first adhesive layer on the first surface of the polymer substrate positioned on the unreeling reel and the press roller; and adhering the first metal layer through the first adhesive layer, so that the first metal layer is separated from the cooling roller and is transferred to the polymer base material. The application still provides a preparation facilities of compound mass flow body. The application can avoid thermal damage to the composite base material and improve the binding force between the metal layer and the polymer base material.

Description

Preparation method and preparation device of composite current collector
Technical Field
The application relates to the field of batteries, in particular to a preparation method and a preparation device of a composite current collector.
Background
The lithium ion battery has the advantages of large specific energy, high working voltage, low self-discharge rate, small volume, light weight and the like, and has wide application in the field of consumer electronics. With the rapid development of electric vehicles and mobile electronic devices, people have increasingly paid attention to and demanded of energy density and safety performance of batteries.
As is well known, in lithium batteries, a metal foil, for example, a copper foil, an aluminum foil, or a nickel foil, is used as a current collector. In order to improve the energy density and the safety performance of the lithium battery, a composite current collector can be used in the lithium battery. In the prior art, a metal layer is generally formed on the surface of a polymer substrate by a method such as evaporation or magnetron sputtering, so as to prepare the composite current collector. However, the metal layer formed by evaporation or magnetron sputtering, etc. causes thermal damage to the polymer substrate, and there is a problem that the bonding force between the polymer substrate and the metal layer is poor, which affects the reliability of the battery.
Disclosure of Invention
In view of the above, there is a need for a method for preparing a composite current collector that can avoid thermal damage to a composite substrate and improve the bonding force between a metal layer and a polymer substrate.
In addition, it is also necessary to provide a preparation apparatus for performing the above preparation method.
The application provides a preparation method of a composite current collector, which comprises the following steps:
depositing a first metal layer on a cooling roller, wherein the cooling roller is arranged opposite to a press roller;
winding a polymer substrate on an unwinding reel, and enabling the polymer substrate to pass through a gap between the cooling roller and the pressing roller and be wound on a winding reel, wherein the polymer substrate comprises a first surface far away from the pressing roller;
forming a first adhesive layer on the first surface of the polymer substrate between the unwinding reel and the pressing roller; and
the first adhesive layer adheres the first metal layer to the polymeric substrate.
In some embodiments of the present application, the method of making further comprises;
depositing a second metal layer on the chill roll;
rewinding the polymeric substrate on the unwind spool such that the first surface faces the pressure roller, wherein the polymeric substrate further comprises a second surface disposed opposite the first surface;
forming a second adhesive layer on the second surface of the polymer substrate between the unwinding reel and the pressing roller; and
the second adhesive layer adheres the second metal layer to the polymeric substrate.
In some embodiments of the present disclosure, the material of the first adhesive layer is at least one selected from a polyurethane polymer, a polyacrylate polymer, and an epoxy polymer, and a maleic anhydride polymer.
In some embodiments of the present application, the material of the cooling roller is at least one selected from stainless steel and titanium.
In some embodiments of the present application, the first metal layer has a thickness of 50nm to 3 μm.
In some embodiments of the present application, the pressure is applied to the polymer substrate by controlling the cooling roller or the pressing roller, so that the first adhesive layer adheres to the first metal layer.
In some embodiments of the present application, the temperature of the first metal layer on the chill roll is-50 ℃ to 0 ℃.
In some embodiments of the present application, the depositing the first metal layer on the chill roll comprises:
heating a metal source by a heating device; and
metal atoms of the metal source are evaporated and deposited onto the cooling roll.
In some embodiments of the present application, the metal source is aluminum, copper, or nickel.
In some embodiments of the present application, the polymeric substrate has a thickness of 4 μm to 6 μm.
The present application further provides a manufacturing apparatus for performing the method of manufacturing a composite current collector as described above, the manufacturing apparatus including a cooling roller, a pressing roller, an unwinding spool, a winding spool, and a spray member;
the compression roller is arranged opposite to the cooling roller; the unwinding reel is used for winding a polymer substrate, and the polymer substrate passes through a gap between the cooling roller and the pressing roller and is wound on the winding reel; the spraying piece is located unreel the spool with between the compression roller, the spraying piece is used for being located unreel the spool with between the compression roller form first adhesive linkage on the polymer substrate.
According to the method, firstly, a metal material is deposited on the cooling roller, and then the first metal layer is transferred to the polymer base material from the cooling roller, so that the problem that the polymer base material is easily subjected to thermal damage when the first metal layer is directly deposited on the polymer base material is solved; moreover, since the surface of the polymer substrate is provided with the first adhesive layer, the first adhesive layer can be used for improving the bonding force between the first metal layer and the polymer substrate, thereby improving the reliability and stability of the battery.
Drawings
Fig. 1 is a flowchart of a method for manufacturing a composite current collector according to an embodiment of the present disclosure.
Fig. 2 and 3 are schematic views showing the operation of the cooling roller, the pressing roller, the unwinding roller and the winding roller used in the manufacturing method shown in fig. 1, when the first surface of the polymer substrate is far away from the pressing roller.
Fig. 4 is a schematic diagram of the operation of the cooling roller, the pressing roller, the unwinding roller and the winding roller used in the preparation method shown in fig. 1, wherein the first surface of the polymer substrate faces the pressing roller.
Fig. 5 is a schematic cross-sectional view of the composite current collector manufactured by the manufacturing method shown in fig. 1.
Fig. 6 is a schematic structural diagram of a device for manufacturing a composite current collector according to an embodiment of the present application.
Description of the main elements
Composite current collector 1
Polymeric substrate 10
First surface 10a
Second surface 10b
First metal layer 20
First adhesive layer 21
Second metal layer 30
Second adhesive layer 31
Preparation apparatus 100
Cooling roll 101
Press roll 102
Metal source 103
Unwinding reel 104
Wind-up reel 105
Spray member 106
The following detailed description will further illustrate the present application in conjunction with the above-described figures.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following embodiments, features of the embodiments may be combined with each other without conflict.
Referring to fig. 1, an embodiment of the present application provides a method for manufacturing a composite current collector 1. The order of the steps of the preparation method can be changed according to different requirements, and certain steps can be omitted or combined.
The preparation method comprises the following steps:
in step S1, referring to fig. 2, a first metal layer 20 is deposited on a cooling roller 101, wherein the cooling roller 101 is disposed opposite to the pressing roller 102.
In an embodiment of the present application, a metal source 103 is heated by a heating device (not shown), and metal atoms of the metal source 103 are evaporated and deposited on the cooling roller 101, thereby obtaining the first metal layer 20. Wherein, during the heating process, the metal source 103 is transformed from solid metal into gaseous metal particles, and then deposited on the cooling roller 101. The heating device may heat the metal source 103 by means of resistance, electron beam, or the like.
The cooling roller 101 is used for cooling heat released when the gaseous metal particles are deposited on the cooling roller 101, so that the cooling roller 101 is prevented from being thermally damaged by the heat release process, and the cooling roller 101 can keep the shape of the cooling roller 101. Further, the temperature of the first metal layer 20 on the cooling roll 101 can be lowered. In an embodiment of the present application, the temperature of the first metal layer 20 on the cooling roll 101 is-50 ℃ to 0 ℃.
Further, the cooling roller 101 and the pressure roller 102 are rotatably provided.
The metal source 103 is a metal having a relatively high conductivity, such as aluminum, copper, or nickel. The purity of the aluminum or copper is more than 99.9%. For example, when the composite current collector 1 is used as a positive electrode current collector, the metal source 103 is aluminum, that is, the material of the first metal layer 20 is aluminum. When the composite current collector 1 is used as a negative electrode current collector, the metal source 103 is copper, that is, the material of the first metal layer 20 is copper.
In an embodiment of the present application, the material of the cooling roller 101 is metal. When the gaseous metal particles are deposited on the cooling roll 101, since the cooling roll 101 has high temperature resistance (i.e., high thermal stability), the heat emitted when the gaseous metal particles are deposited on the cooling roll 101 is not sufficient to cause thermal damage to the cooling roll 101, nor to cause deformation of the cooling roll 101.
In an embodiment of the present application, the thickness of the first metal layer 20 is 50nm-3 μm.
Step S2, winding the polymer substrate 10 on the unwinding reel 104, and passing the polymer substrate 10 through the gap between the cooling roller 101 and the pressing roller 102 and winding the polymer substrate on the winding reel 105, wherein the polymer substrate 10 includes a first surface 10a away from the pressing roller 102.
In this embodiment, the material of the polymer layer 11 may be at least one selected from Polyethylene (PE), polyethylene terephthalate (PET), Polytetrafluoroethylene (PI), polyether ether ketone (PEEK), and the like.
The unwinding reel 104 and the winding reel 105 are rotatably disposed.
In step S3, a first adhesive layer 21 is formed on the first surface 10a of the polymer substrate 10 between the unwinding spool 104 and the pressing roller 102.
A spraying member 106 may be disposed between the unwinding reel 104 and the pressing roller 102, and the spraying member 106 is configured to spray an adhesive material toward the first surface 10a, so as to obtain the first adhesive layer 21. More specifically, the spray member 106 is disposed adjacent to the pressure roller 102 for spraying the adhesive material toward the first surface 10a of the portion of the polymer base material 10 adjacent to the pressure roller 102. The spray member 106 may be attached to the pressure roller 102 or may be separate from the pressure roller 102.
In this embodiment, the spray member 106 may be a nozzle.
Step S4, as shown in fig. 3, the first adhesive layer 21 adheres the first metal layer 20 to the polymer substrate 10.
As the unwinding reel 104 and the winding reel 105 rotate, the polymer substrate 10 drives the first adhesive layer 21 to move between the cooling roller 101 and the pressing roller 102. At this time, as the cooling roller 101 and the pressing roller 102 rotate, the first adhesive layer 21 contacts and adheres to the first metal layer 20 on the cooling roller 101, so that the first metal layer 20 is separated from the cooling roller 101 and bonded to the first surface 10a of the polymer base material 10 by the first adhesive layer 21.
In an embodiment of the present disclosure, the material of the first adhesive layer 21 is at least one selected from a polyurethane polymer, a polyacrylate polymer, and an epoxy polymer, and a maleic anhydride polymer. In this way, when the first metal layer 20 is transferred onto the polymer substrate 10, the first adhesive layer 21 can be used to increase the bonding force between the first metal layer 20 and the polymer substrate 10, thereby ensuring the reliability and stability of the battery. Optionally, the material of the first adhesive layer 21 is polyurethane polymer or polyacrylate polymer.
Considering that the adhesion of the first metal layer 20 on the cooling roller 101 cannot be too high, the first metal layer 20 is easy to detach from the cooling roller 101 and the first metal layer 20 is prevented from remaining on the cooling roller 101, and therefore, the material of the cooling roller 101 may be at least one selected from stainless steel and titanium. Optionally, the material of the cooling roller 101 is stainless steel.
Due to the low temperature of the first metal layer 20 on the cooling roll 101, the first metal layer 20 does not cause thermal damage to the first adhesive layer 21 and the polymer substrate 10 when the first metal layer 20 is transferred onto the polymer substrate 10. Therefore, the thickness of the polymer substrate 10 can be reduced according to actual needs, and the generation of wrinkles of the polymer substrate 10 due to heat can be avoided. In one embodiment of the present application, the polymer substrate 10 has a thickness of 4 μm to 6 μm.
In an embodiment of the present application, the pressure may be applied to the polymer substrate 10 by controlling the cooling roller 101 or the pressing roller 102, so that the first adhesive layer 21 adheres to the first metal layer 20. For example, the cooling roller 101 may be controlled to apply pressure to the polymer substrate 10 by moving the cooling roller 101 or the pressing roller 102 such that the distance between the cooling roller 101 and the pressing roller 102 is reduced.
In summary, the present application firstly deposits a metal material on the cooling roller 101, and then transfers the first metal layer 20 from the cooling roller 101 to the polymer substrate 10, so as to avoid the problem that the polymer substrate 10 is easily damaged by heat when the first metal layer is directly deposited on the polymer substrate 10; moreover, since the surface of the polymer substrate 10 has the first adhesive layer 21, the first adhesive layer 21 may serve to improve the bonding force between the first metal layer 20 and the polymer substrate 10, thereby improving the reliability and stability of the battery.
In an embodiment of the present application, when the composite current collector 1 is a double-sided composite current collector, the preparation method may further include the following steps:
in step S5, referring to fig. 4, a second metal layer 30 is deposited on the cooling roller 101.
In an embodiment of the present application, the temperature of the second metal layer 30 on the cooling roll 101 is-50 ℃ to 0 ℃.
The material of the second metal layer 30 may be the same as that of the first metal layer 20. For example, when the composite current collector 1 is used as a positive electrode current collector, the first metal layer 20 and the second metal layer 30 are both made of aluminum. When the composite current collector 1 is used as a negative electrode current collector, the first metal layer 20 and the second metal layer 30 are both made of copper.
In an embodiment of the present application, the thickness of the first metal layer 20 is 50nm-3 μm.
In step S6, rewinding the polymer substrate 10 on the unwinding spool 104 such that the first surface 10a faces the pressing roller 102, wherein the polymer substrate 10 further includes a second surface 10b opposite to the first surface 10 a.
In step S7, a second adhesive layer 31 is formed on the second surface 10b of the polymer substrate 10 between the unwinding spool 104 and the pressing roller 102.
The spraying member 106 on the pressing roller 102 is further configured to spray an adhesive material toward the second surface 10b, so as to obtain the second adhesive layer 31. More specifically, the spray member 106 is used to spray an adhesive material toward the second surface 10b of the polymer substrate 10 adjacent to the press roll 102.
In an embodiment of the present invention, the material of the second adhesive layer 31 is at least one selected from a polyurethane polymer, a polyacrylate polymer, and an epoxy polymer, and a maleic anhydride polymer. The material of the second adhesive layer 31 may be the same as or different from the material of the first adhesive layer 21.
Step S8, the second adhesive layer 31 adheres the second metal layer 30 to the polymer substrate 10, so as to obtain the composite current collector 1.
As shown in fig. 5, the composite current collector 1 includes a polymer substrate 10 and a first metal layer 20 and a second metal layer 30 bonded to opposite surfaces of the polymer substrate 10. A first adhesive layer 21 is disposed between the polymer substrate 10 and the first metal layer 20. A second adhesive layer 31 is arranged between the polymer substrate 1 and the second metal layer 30.
According to the application, a metal material is firstly deposited on the cooling roller 101, and then the second metal layer 30 is transferred onto the polymer base material 10 from the cooling roller 101, so that the problem that the polymer base material 10 is easily subjected to thermal damage when the second metal layer is directly deposited on the polymer base material 10 is avoided; moreover, since the surface of the polymer substrate 10 has the second adhesive layer 31, the second adhesive layer 31 may serve to improve the bonding force between the second metal layer 30 and the polymer substrate 10, thereby improving the reliability and stability of the battery.
Referring to fig. 6, the present embodiment also provides a manufacturing apparatus 100 for performing the above-mentioned method for manufacturing a composite current collector. The preparation device 100 comprises a cooling roller 101, a pressing roller 102, an unreeling reel 104, a reeling reel 105 and a spraying piece 106.
The cooling roller 101 is deposited with a first metal layer 20 or a second metal layer 30.
The press roll 102 is disposed opposite to the cooling roll 101.
The unwinding reel 104 is used for winding the polymer substrate 10, and the polymer substrate 10 passes through the gap between the cooling roller 101 and the pressing roller 102 and is wound on the winding reel 105.
The spray member 106 is located between the unwinding spool 104 and the pressing roller 102 and adjacent to the pressing roller 102. The spraying member 106 is used for forming a first adhesive layer 21 on the polymer base material 10 between the unwinding reel 104 and the pressing roller 102. In this embodiment, the spraying member 106 is further used for forming a second adhesive layer 31 on the polymer base material 10 between the unwinding reel 104 and the pressing roller 102.
In the present embodiment, the manufacturing apparatus 100 further includes a heating device (not shown) disposed opposite to the cooling roller 101. The heating means is used to heat the metal source 103 so that the metal source 103 is evaporated and the first metal layer 20 is deposited after cooling on the cooling roll 101. In this embodiment, the heating device is also used to deposit a second metal layer 30 on the cooling roll 101.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (11)

1. A method of making a composite current collector, comprising:
depositing a first metal layer on a cooling roller, wherein the cooling roller is arranged opposite to a press roller;
winding a polymer substrate on an unwinding reel, and enabling the polymer substrate to pass through a gap between the cooling roller and the pressing roller and be wound on a winding reel, wherein the polymer substrate comprises a first surface far away from the pressing roller;
forming a first adhesive layer on the first surface of the polymer substrate between the unwinding reel and the pressing roller; and
the first adhesive layer adheres the first metal layer to the polymeric substrate.
2. The method of making a composite current collector of claim 1, further comprising;
depositing a second metal layer on the chill roll;
rewinding the polymeric substrate on the unwind spool such that the first surface faces the pressure roller, wherein the polymeric substrate further comprises a second surface disposed opposite the first surface;
forming a second adhesive layer on the second surface of the polymer substrate between the unwinding reel and the pressing roller; and
the second adhesive layer adheres the second metal layer to the polymeric substrate.
3. The method of claim 1, wherein the first adhesive layer is made of at least one material selected from a polyurethane polymer, a polyacrylate polymer, and an epoxy polymer, and a maleic anhydride polymer.
4. The method of preparing a composite current collector of claim 1, wherein the material of the cooling roller is at least one selected from stainless steel and titanium.
5. The method of preparing a composite current collector of claim 1, wherein the thickness of the first metal layer is 50nm to 3 μ ι η.
6. The method of preparing a composite current collector of claim 1, wherein the first adhesive layer adheres to the first metal layer by controlling the cooling roller or the pressing roller to apply pressure to the polymer substrate, thereby transferring the first metal layer to the surface of the first adhesive layer.
7. The method of making a composite current collector of claim 1, wherein the temperature of the first metal layer on the chill roll is in the range of-50 ℃ to 0 ℃.
8. The method of preparing a composite current collector of claim 1, wherein depositing the first metal layer on the chill roll comprises:
heating a metal source by a heating device; and
metal atoms of the metal source are evaporated and deposited onto the cooling roll.
9. The method of making a composite current collector of claim 8, wherein the metal source is aluminum, copper, or nickel.
10. The method of preparing a composite current collector of claim 1, wherein the polymer substrate has a thickness of 4 μ ι η to 6 μ ι η.
11. A manufacturing apparatus for carrying out the manufacturing method of the composite current collector as claimed in any one of claims 1 to 10, wherein the manufacturing apparatus comprises a cooling roll, a pressing roll, an unwinding reel, a winding reel and a spraying member;
the compression roller is arranged opposite to the cooling roller;
the unwinding reel is used for winding a polymer substrate, and the polymer substrate passes through a gap between the cooling roller and the pressing roller and is wound on the winding reel;
the spraying piece is located unreel the spool with between the compression roller, the spraying piece is used for being located unreel the spool with between the compression roller form first adhesive linkage on the polymer substrate.
CN202010141572.7A 2020-03-03 2020-03-03 Preparation method and preparation device of composite current collector Pending CN113346038A (en)

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Publication number Priority date Publication date Assignee Title
JPH0788600A (en) * 1993-09-24 1995-04-04 Nippon Steel Corp Twin roll type continuous casting method and apparatus therefor
CN1358619A (en) * 2000-09-26 2002-07-17 东丽株式会社 Sheet material making method and jet nozzle for making said sheet material
CN1705045A (en) * 2004-05-29 2005-12-07 李云平 Technological process for preparing flexible conducting material by vacuum sputtering
CN102417655A (en) * 2011-10-10 2012-04-18 上海金浦塑料包装材料有限公司 BOPP aluminized basement membrane capable of completely transferring aluminized coating
CN103539958A (en) * 2013-10-31 2014-01-29 陕西师范大学 Transfer method of thin film plated with ultrathin metal nanomaterial on base
CN106715110A (en) * 2014-10-17 2017-05-24 利乐拉瓦尔集团及财务有限公司 A method for a laminated packaging material
CN107799674A (en) * 2017-09-29 2018-03-13 易佰特新能源科技有限公司 A kind of manufacture method of lithium ion battery plastic-aluminum packaging film
CN207193382U (en) * 2017-09-19 2018-04-06 天津中能锂业有限公司 A kind of serondary lithium battery negative pole Vacuum Deposition lithium membrane production equipment
CN109004159A (en) * 2018-09-13 2018-12-14 常州星源新能源材料有限公司 Preparation method, lithium ion battery separator and the lithium ion battery of lithium ion battery separator
CN109088045A (en) * 2018-07-18 2018-12-25 惠州亿纬锂能股份有限公司 The preparation method of lithium ion battery with high energy density

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0788600A (en) * 1993-09-24 1995-04-04 Nippon Steel Corp Twin roll type continuous casting method and apparatus therefor
CN1358619A (en) * 2000-09-26 2002-07-17 东丽株式会社 Sheet material making method and jet nozzle for making said sheet material
CN1705045A (en) * 2004-05-29 2005-12-07 李云平 Technological process for preparing flexible conducting material by vacuum sputtering
CN102417655A (en) * 2011-10-10 2012-04-18 上海金浦塑料包装材料有限公司 BOPP aluminized basement membrane capable of completely transferring aluminized coating
CN103539958A (en) * 2013-10-31 2014-01-29 陕西师范大学 Transfer method of thin film plated with ultrathin metal nanomaterial on base
CN106715110A (en) * 2014-10-17 2017-05-24 利乐拉瓦尔集团及财务有限公司 A method for a laminated packaging material
CN207193382U (en) * 2017-09-19 2018-04-06 天津中能锂业有限公司 A kind of serondary lithium battery negative pole Vacuum Deposition lithium membrane production equipment
CN107799674A (en) * 2017-09-29 2018-03-13 易佰特新能源科技有限公司 A kind of manufacture method of lithium ion battery plastic-aluminum packaging film
CN109088045A (en) * 2018-07-18 2018-12-25 惠州亿纬锂能股份有限公司 The preparation method of lithium ion battery with high energy density
CN109004159A (en) * 2018-09-13 2018-12-14 常州星源新能源材料有限公司 Preparation method, lithium ion battery separator and the lithium ion battery of lithium ion battery separator

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