CN108711638A - A kind of 3D printing system and Method of printing of flexible battery - Google Patents

A kind of 3D printing system and Method of printing of flexible battery Download PDF

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Publication number
CN108711638A
CN108711638A CN201810440296.7A CN201810440296A CN108711638A CN 108711638 A CN108711638 A CN 108711638A CN 201810440296 A CN201810440296 A CN 201810440296A CN 108711638 A CN108711638 A CN 108711638A
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CN
China
Prior art keywords
printing
printer
positive
platform
silver paste
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810440296.7A
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Chinese (zh)
Inventor
王勇
黄健鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan South China Design and Innovation Institute
Original Assignee
Dongguan South China Design and Innovation Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan South China Design and Innovation Institute filed Critical Dongguan South China Design and Innovation Institute
Priority to CN201810440296.7A priority Critical patent/CN108711638A/en
Publication of CN108711638A publication Critical patent/CN108711638A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/058Construction or manufacture
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of or comprising active material
    • H01M4/04Processes of manufacture in general
    • H01M4/0402Methods of deposition of the material
    • H01M4/0419Methods of deposition of the material involving spraying
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of or comprising active material
    • H01M4/13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139Processes of manufacture
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of or comprising active material
    • H01M4/64Carriers or collectors
    • H01M4/66Selection of materials
    • H01M4/661Metal or alloys, e.g. alloy coatings
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings, jackets or wrappings of a single cell or a single battery
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The invention discloses a kind of 3D printing system of flexible battery and its Method of printings, 3D printing system includes print job platform, 3D design cells, print control unit, the print job platform includes rotating mechanism, rotating platform, three supporting rods, three angle controllers and three model support platforms, the rotating mechanism is located at rotating platform center, the bottom end of the supporting rod is fixed on rotating platform, its top is connected by angle controller with model support platform, and the angle between supporting rod and the line at rotating platform center is 120 °;Light-cured resin 3D printer, nanometer silver paste 3D printer and positive/negative slurry 3D printer are respectively arranged with above model support platform;3D printing method mainly controls three printers by print control unit and sequentially works, and forms the pipelining of 360 ° of closed circuits.The flexible battery for having special construction can be rapidly made in 3D printing system using the present invention and 3D printing method, and process is simple, easy to operate.

Description

A kind of 3D printing system and Method of printing of flexible battery
Technical field
The invention belongs to 3D printing technique field more particularly to the 3D printing systems and Method of printing of a kind of flexible battery.
Background technology
3D printing (3D printing) technology is also known as three-dimensional printing technology, be one kind based on digital model file, fortune With adhesive materials such as powdery metal or plastics, the technology of object is constructed by layer-by-layer printing.It is without machinery Processing or any mold, can generate the part of any shape directly from computer graphics data, to greatly shorten production The lead time of product improves productivity and reduces production cost.
Increasingly perfect with 3D printing technique, 3D printing technique is widely used to military affairs, electronics, medicine, biology, new The fields such as the energy, especially novel 3D printing integrate lithium ion battery appearance, effectively realize lithium ion battery anode and cathode and The effective integration of its package system substantially increases the ratio of active material in battery electrode material, shortens lithium ion battery Migration distance in charge and discharge process improves the diffusion rate and mobility of lithium ion.
However, the lithium ion battery prepared by existing 3D printing technique is generally the interdigital knot of anode and cathode for not needing diaphragm Structure, this structure are easy to print, but volume change is notable in lithium storing process and stress is larger for lithium ion battery electrode material, Electrode is yielding in charge and discharge process or even caves in.If this anode and cathode interdigital structure is applied to flexible battery, pass through It is repeatedly restored after bending deformation, the rate of decay of electrode is faster.Therefore, above structure is improved based on 3D printing technique, It is the key that solve the problems, such as this.Such as design a kind of flexible battery comprising inside matrix and base lid, described matrix and base lid Be designed with intermeshing triangle toothed surface, then matrix toothed surface print anode and cathode interdigital structure collector and Positive/negative electrode, the wherein root of interdigital collector and the top crest line of the triangle are perpendicular, the interdigital collection The finger portion of fluid is located at two waists of the triangle and parallel with the top crest line of the triangle, and positive/negative electrode is covered in On positive/negative collector, then matrix and base lid be packaged together, injection electrolyte obtains flexible battery.Due to battery Positive/negative is located on triangular ramp central plane, on the one hand can increase the amount of positive/negative active material, improves flexible electrical The chemical property in pond, on the other hand, for flexible battery when by bending stress, two central plane junctions of triangle will be by pole Big squeezing action power, but the central plane of triangle will not be influenced by bending stress, i.e. positive/negative active material will not be by The influence of flexible battery flexural deformation.
The structure of above-mentioned flexible battery is complex, and existing 3D printing system cannot be satisfied the need for preparing flexible battery It wants.
Invention content
The present invention is intended to provide a kind of 3D printing system and Method of printing, it is multiple to be used to prepare the structure mentioned in background technology Miscellaneous flexible battery.
In order to achieve the above object, present invention employs following technical solutions:
A kind of 3D printing system, including print job platform, 3D design cells, print control unit, the print job platform Including rotating mechanism, rotating platform, three supporting rods, three angle controllers and three model support platforms, the rotation Mechanism is located at rotating platform center, and the bottom end of the supporting rod is fixed on rotating platform, and top passes through angle controller It is connected with model support platform, and the angle between supporting rod and the line at rotating platform center is 120 °;On model support platform Side is respectively arranged with light-cured resin 3D printer, nanometer silver paste 3D printer and positive/negative slurry 3D printer.
As the improved technical solution of the present invention, the rotating platform is discoid or is made of 3 horizontal brace rods " Y " word.
As the improved technical solution of the present invention, the angle controller mainly controls electricity by least two platform angle Machine forms, and the platform angle control motor is Linear scaling motor, and lower end is fixed on supporting bar top by fixed plate, Upper end is connect by bulb and model support table-hinges, to the model support platform that tilts, changes the angle of model support platform.
As the improved technical solution of the present invention, the model support platform after angle controller rotates horizontal by 45°。
As the improved technical solution of the present invention, the nanometer silver paste 3D printer and positive/negative slurry 3D printer are Three nozzle 3D printers, are equipped with nanometer silver paste to be printed or positive/negative slurry in intermediate nozzle, equipped with printing in the nozzle of both sides Backing material.
As the improved technical solution of the present invention, ultraviolet radiation system is installed in light-cured resin 3D printer side System, thermal radiation system is mounted in nanometer silver paste 3D printer and positive/negative slurry 3D printer side.
Further include printing backing material cleaning system as the improved technical solution of the present invention.
As another object of the present invention, a kind of 3D printing method of flexible battery is also disclosed, it includes mainly following Step:(1) structure of 3D design cells design flexible battery, the wherein matrix of flexible battery and base lid interior design is utilized to have phase The triangle toothed surface mutually engaged is designed with the collector of anode and cathode interdigital structure in the toothed surface of matrix, sets on a current collector In respect of the positive/negative area of coverage;(2) the model cootrol light-cured resin 3D printing that print control unit is designed according to 3D design cells Machine, nanometer silver paste 3D printer and positive/negative slurry 3D printer start print job;First by light-cured resin 3D printing Machine prints flexible battery matrix;Secondly print control unit control rotating mechanism rotates 120 °, and printed matrix is transferred to Below nanometer silver paste 3D printer;Then print control unit control angle controller work, makes model support platform to left-handed Turn, prints nanometer silver paste in the side of triangle, followed by model support platform is to right rotation, and printing is received in the other side of triangle Rice silver paste;Last print control unit control rotating mechanism rotates 120 °, and printed matrix is transferred to positive/negative slurry 3D Below printer, angle controller makes model support platform to right rotation, prints positive/negative slurry in the side of triangle, tightly And then model support platform prints nanometer silver paste to anticlockwise in the other side of triangle;(3) flexible battery base lid is printed;(4) it seals Matrix base lid is filled, electrolyte is injected, obtains flexible battery.
As the improved technical solution of the present invention, the apex angle of the triangle is 90 °, and the model support platform is through angle control Horizontal by 45 ° after device rotation processed.
As the improved technical solution of the present invention, triangle tooth form area can be divided into multiple printing, the height printed first Degree is height of the first layer positive/negative peak away from triangle base, and the height of second of printing is second layer positive/negative highest Position of the point away from second layer positive/negative peak, and so on, until triangular apex is away from layer positive/negative highest second from the bottom The position of point, and complete the printing of a matrix, i.e., the printing of a nanometer silver paste and positive/negative slurry is sequentially carried out, until Printing terminates.
Advantageous effect:
The 3D printing system of flexible battery disclosed by the invention disclosure satisfy that the printing needs of flexible battery labyrinth, The inclined-plane of triangle can be rotated to be plane by it, greatly facilitate the 3D printing of nanometer silver paste and positive/negative slurry.In addition, The printing effect of light-cured resin printer is high in the present invention, but matrix is needed to need the amount printed larger, and nanometer silver paste and just/ Negative electrode slurry needs to dry, and takes and slightly grows, but the amount that its needs prints is small, therefore changes the station of model by rotating mechanism, makes Three printers form 360 ° of closed circuit pipelinings, and printing effect is greatly improved.
Description of the drawings
Fig. 1 is the structural schematic diagram of the matrix and base lid of flexible battery;
Fig. 2 is the structural schematic diagram after flexible battery encapsulation;
Fig. 3 is the structural schematic diagram of the 3D printing system of the present invention;
Fig. 4 is a kind of structural schematic diagram of rotating platform;
Fig. 5 is the 3D printing schematic diagram of nanometer silver paste and positive/negative slurry;
Fig. 6 is that triangle tooth form distinguishes section printing schematic diagram.
Specific implementation mode
The present invention is legibly understood in order to make those skilled in the art become apparent from, in conjunction with specific implementation mode and attached Figure, the present invention is described in detail.
As shown in Figure 1, the flexible battery mentioned in background technology, including matrix 1 and base lid 2, described matrix 1 and base lid 2 Interior design has intermeshing triangle toothed surface, and the collector 4 of anode and cathode interdigital structure is printed in the toothed surface of matrix 1 With positive/negative electrode, the wherein root of interdigital collector 4 and the top crest line of the triangle is perpendicular, described interdigital The finger portion of type collector 4 is located at two waists of the triangle and, (such as Fig. 1 amplification parallel with the top crest line of the triangle Shown in area 3).Positive/negative electrode is covered on positive/negative collector 4.Matrix 1 and base lid 2 are packaged together, electrolyte is injected Flexible battery is obtained, as shown in Figure 2.
What the 3D printing system of the present invention was designed primarily directed to above-mentioned flexible battery.It includes that print job platform, 3D are set Count unit, print control unit.The print job platform includes rotating mechanism 5, the supporting rod 7, three of rotating platform 6, three angle Degree control device 8 and three model support platforms 9, the rotating mechanism 5 are located at 6 center of rotating platform, the bottom of the supporting rod 7 End is fixed on rotating platform 6, and top is connected by angle controller 8 with model support platform 9, and supporting rod 7 and rotation Angle between the line at 6 center of platform is 120 °;Light-cured resin 3D printer is respectively arranged with above model support platform 9 10, nanometer silver paste 3D printer 12 and positive/negative slurry 3D printer 14, as shown in Figure 3.As one of which embodiment party Formula, the rotating platform 6 are " Y " word that is discoid or being made of 3 horizontal brace rods, as shown in Figure 4.Preferably, the angle It spends control device 8 and motor form is mainly controlled by least two platform angle, the platform angle control motor is Linear scaling electricity Machine, lower end are fixed on 7 top of supporting rod by fixed plate, and the upper end is hinged by bulb and model support platform 9, to left and right Oblique model supporting table 9 changes the angle of model support platform 9.For example, model support platform 9 through angle controller 8 rotation after with Horizontal plane is in 45 °.Preferably, the nanometer silver paste 3D printer 12 and positive/negative slurry 3D printer 14 are that three nozzle 3D are beaten Print machine, is equipped with nanometer silver paste to be printed or positive/negative slurry in intermediate nozzle, equipped with printing backing material in the nozzle of both sides. Preferably, ultraviolet radiation system 11 is installed in 10 side of light-cured resin 3D printer, in nanometer silver paste 3D printer 12 And 14 side of positive/negative slurry 3D printer is mounted on thermal radiation system (13,15).Further, it further includes printing Backing material cleaning system (not shown), the backing material for removing nanometer silver paste and positive/negative slurry both sides.
The operation principle of 3D printing system of the present invention is:(1) structure of 3D design cells design flexible battery is utilized, wherein The matrix 1 of flexible battery and 2 interior design of base lid have intermeshing triangle toothed surface, are designed in the toothed surface of matrix 1 The collector 4 of anode and cathode interdigital structure, is designed with the positive/negative area of coverage on collector 4;(2) print control unit is according to 3D Model cootrol light-cured resin 3D printer 10, nanometer silver paste 3D printer 12 and the positive/negative slurry of design cell design 3D printer 14 starts print job;Flexible battery matrix 1 is printed by light-cured resin 3D printer 10 first;Secondly printing control Unit control rotating mechanism 5 processed rotates 120 °, and printed matrix 1 is transferred to 12 lower section of nanometer silver paste 3D printer;Then Print control unit controls angle controller 8 and works, and makes model support platform 9 to 45 ° of anticlockwise, is printed in the side of triangle Nanometer silver paste, as shown in Figure 5;Followed by model support platform 9 prints nanometer silver paste to 45 ° of right rotation in the other side of triangle; Last print control unit control rotating mechanism 5 rotates 120 °, and printed matrix 1 is transferred to positive/negative slurry 3D printing 14 lower section of machine, angle controller 8 make model support platform 9 to 45 ° of right rotation, and positive/negative slurry is printed in the side of triangle, Followed by model support platform 9 prints nanometer silver paste to 45 ° of anticlockwise in the other side of triangle;(3) flexible battery base lid is printed 2;(4) 1 base lid 2 of encapsulation matrix injects electrolyte, obtains flexible battery.
In order to improve printing effect, triangle tooth form area can be divided into multiple printing.As shown in fig. 6, print first Height is height H1 of the first layer positive/negative peak away from triangle base, and the height of second of printing is second layer positive/negative Position H2 of the peak away from second layer positive/negative peak, and so on, until triangular apex is positive/negative away from layer second from the bottom The position Hn of pole peak, and complete the printing of a matrix 1, i.e., sequentially carry out a nanometer silver paste and positive/negative slurry Printing, until printing terminates.The printing effect of light-cured resin printer is high in the present invention, but matrix is needed to need the amount printed Larger, nanometer silver paste and positive/negative slurry need to dry, and take and slightly grow, but the amount that its needs prints is small, therefore pass through rotating mechanism The station for changing model, makes three printers form 360 ° of closed circuit pipelinings, and printing effect is greatly improved.
Obviously, above-described embodiment is used for the purpose of clearly demonstrating example, rather than the limitation to embodiment.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.As long as being made on the basis of the embodiment of the present invention The change scheme of common-sense, among protection scope of the present invention.

Claims (10)

1. a kind of 3D printing system, including print job platform, 3D design cells, print control unit, it is characterised in that:It is described to beat Print workbench includes rotating mechanism, rotating platform, three supporting rods, three angle controllers and three model support platforms, The rotating mechanism is located at rotating platform center, and the bottom end of the supporting rod is fixed on rotating platform, and top passes through angle Control device is connected with model support platform, and the angle between supporting rod and the line at rotating platform center is 120 °;In model It is respectively arranged with light-cured resin 3D printer, nanometer silver paste 3D printer and positive/negative slurry 3D printing above supporting table Machine.
2. 3D printing system according to claim 1, it is characterised in that:The rotating platform is discoid or by 3 water " Y " word that flushconnection bar is constituted.
3. 3D printing system according to claim 1, it is characterised in that:The angle controller is mainly by least two Platform angle controls motor form, and the platform angle control motor is Linear scaling motor, and lower end is fixed by fixed plate In supporting bar top, the upper end is connect by bulb and model support table-hinges, to the model support platform that tilts, changes model branch Support the angle of platform.
4. 3D printing system according to claim 1, it is characterised in that:The model support platform is revolved through angle controller Horizontal by 45 ° after turning.
5. 3D printing system according to claim 1, it is characterised in that:The nanometer silver paste 3D printer and positive/negative Slurry 3D printer is three nozzle 3D printers, and nanometer silver paste to be printed or positive/negative slurry, both sides are housed in intermediate nozzle Equipped with printing backing material in nozzle.
6. 3D printing system according to claim 1, it is characterised in that:It is equipped in light-cured resin 3D printer side Ultraviolet radiation system is mounted on heat radiation system in nanometer silver paste 3D printer and positive/negative slurry 3D printer side System.
7. 3D printing system according to claim 1, it is characterised in that:It further include printing backing material cleaning system.
8. a kind of 3D printing method of flexible battery, it is characterised in that:It mainly includes the following steps that:(1) 3D design cells are utilized The structure of flexible battery is designed, the wherein matrix of flexible battery and base lid interior design has intermeshing triangle toothed surface, It is designed with the collector of anode and cathode interdigital structure in the toothed surface of matrix, is designed with the positive/negative area of coverage on a current collector;(2) Model cootrol light-cured resin 3D printer that print control unit is designed according to 3D design cells, nanometer silver paste 3D printer with And positive/negative slurry 3D printer starts print job;Flexible battery matrix is printed by light-cured resin 3D printer first;Its Secondary print control unit control rotating mechanism rotates 120 °, and printed matrix is transferred to below nanometer silver paste 3D printer; Then print control unit control angle controller work makes model support platform to anticlockwise, is printed in the side of triangle Nanometer silver paste, followed by model support platform print nanometer silver paste to right rotation, in the other side of triangle;Last print control list Member control rotating mechanism rotates 120 °, and printed matrix is transferred to below positive/negative slurry 3D printer, angle control dress Setting makes model support platform to right rotation, and positive/negative slurry is printed in the side of triangle, and followed by model support platform is to left-handed Turn, nanometer silver paste is printed in the other side of triangle;(3) flexible battery base lid is printed;(4) encapsulation matrix base lid, injection electrolysis Liquid obtains flexible battery.
9. the 3D printing method of flexible battery according to claim 8, it is characterised in that:The apex angle of the triangle is 90 °, the model support platform is after angle controller rotates horizontal by 45 °.
10. the 3D printing method of flexible battery according to claim 8, it is characterised in that:Triangle tooth form area can It is divided into multiple printing, the height printed first is height of the first layer positive/negative peak away from triangle base, second of printing Height be position of the second layer positive/negative peak away from second layer positive/negative peak, and so on, until triangle top Position of the point away from layer positive/negative peak second from the bottom, and complete the printing of a matrix, i.e., sequentially carry out a nanometer silver paste With the printing of positive/negative slurry, terminate until printing.
CN201810440296.7A 2018-05-10 2018-05-10 A kind of 3D printing system and Method of printing of flexible battery Pending CN108711638A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109860598A (en) * 2019-01-29 2019-06-07 上海交通大学 3D printing one-pass molding water system Zinc ion battery and its implementation

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US20150283751A1 (en) * 2014-04-07 2015-10-08 3D Total Solutions, Inc. 3d printer system with circular carousel and multiple material delivery systems
CN105328910A (en) * 2015-11-22 2016-02-17 苏州光韵达光电科技有限公司 Multifunctional assembly type 3D (three-dimensional) printing equipment and 3D printing method
CN107696471A (en) * 2017-10-10 2018-02-16 东莞华南设计创新院 A kind of 3D printing method of flexible battery
CN107738443A (en) * 2017-10-11 2018-02-27 东莞华南设计创新院 A kind of 3D printer

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Publication number Priority date Publication date Assignee Title
US20150283751A1 (en) * 2014-04-07 2015-10-08 3D Total Solutions, Inc. 3d printer system with circular carousel and multiple material delivery systems
CN105328910A (en) * 2015-11-22 2016-02-17 苏州光韵达光电科技有限公司 Multifunctional assembly type 3D (three-dimensional) printing equipment and 3D printing method
CN107696471A (en) * 2017-10-10 2018-02-16 东莞华南设计创新院 A kind of 3D printing method of flexible battery
CN107738443A (en) * 2017-10-11 2018-02-27 东莞华南设计创新院 A kind of 3D printer

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CN109860598A (en) * 2019-01-29 2019-06-07 上海交通大学 3D printing one-pass molding water system Zinc ion battery and its implementation

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