CN107696471A - A kind of 3D printing method of flexible battery - Google Patents
A kind of 3D printing method of flexible battery Download PDFInfo
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- CN107696471A CN107696471A CN201710936374.8A CN201710936374A CN107696471A CN 107696471 A CN107696471 A CN 107696471A CN 201710936374 A CN201710936374 A CN 201710936374A CN 107696471 A CN107696471 A CN 107696471A
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a kind of 3D printing method of flexible battery, and it mainly includes three-dimensional modeling, then sequentially prints matrix, collector, positive/negative and the baffle plate of flexible battery, and is packaged with base lid, and injection electrolyte produces.The present invention is improved the structures of traditional interdigitated electrodes so that it can be applied to flexible battery, during use will not Collapse Deformation, remain to keep excellent chemical property after repeatedly bending.
Description
Technical field
The invention belongs to a kind of 3D printing method of field of new energy technologies, more particularly to flexible battery.
Background technology
3D printing (3D printing) technology is also known as three-dimensional printing technology, is a kind of based on mathematical model file, fortune
With powdery metal or plastics etc. can jointing material, come the technology of constructed object by way of successively printing.It is without machinery
Processing or any mould, the part of any shape can be just generated directly from computer graphics data, so as to greatly shorten production
The lead time of product, improve productivity ratio and reduce production cost.
Increasingly perfect with 3D printing technique, 3D printing technique is widely used to military affairs, electronics, medical science, biology, new
The fields such as the energy, especially new 3D printing integrate lithium ion battery appearance, effectively realize lithium ion battery anode and cathode and
The effective integration of its package system, the ratio of active material in battery electrode material is substantially increased, shortens lithium ion battery
Migration distance in charge and discharge process, improve 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 barrier film
Structure, this structure are easy to print, but Volume Changes are 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 into flexible battery, pass through
Repeatedly restored after bending deformation, the rate of decay of electrode is faster.Therefore, said structure is improved based on 3D printing technique,
It is the key for solving this problem.
The content of the invention
Present invention seek to address that structure easily caves in, is not suitable for flexible battery in existing interdigitated electrodes charge and discharge process
The shortcomings of, there is provided a kind of 3D printing method of flexible battery.This method is improved the structure of traditional interdigitated electrodes,
Flexible battery can be used for, the structural integrity in charge and discharge process, restored by repeatedly bending, structure is still complete, jail
Gu.In addition, it also increases the ratio of electrode material activity material in flexible battery, the electrochemistry of flexible battery is improved
Energy.
In order to achieve the above object, present invention employs following technical scheme:
A kind of 3D printing method of flexible battery, mainly comprises the following steps:(1) modeled using three-dimensional software, design is soft
The property cell matrix and structure of base lid, the shape of collector and position, the shape of positive/negative slurry and position, the shape of baffle plate
And position;(2) according to three dimensional model printing flexible battery matrix and base lid, wherein, matrix and base lid indoor design, which have, mutually nibbles
The triangle toothed surface of conjunction;(3) conductive material is printed to the toothed surface of matrix, interdigital collector is formed, wherein intersecting
The root of finger-type collector and the top crest line of the triangle are perpendicular, and the finger portion of the interdigital collector is positioned at described
Two waists of triangle are simultaneously parallel with the top crest line of the triangle;(4) positive/negative slurry is printed into positive/negative afflux
On body, the positive/negative of flexible battery is formed;(5) baffle plate, the distance from top triangle of the baffle plate are printed between positive/negative
The distance of central plane is more than or equal to the positive/negative collector and the positive/negative thickness sum;(6) collective and base lid are encapsulated
Together, its lance tooth shape area mutually coincide, and its internal voids forms the memory space of electrolyte.
As the improved technical scheme of the present invention, multiple holes are distributed with the plane of the baffle plate.
As the improved technical scheme of the present invention, the one of which material in the positive/negative active material is beaten in U-typed
It is imprinted on negative or positive electrode collector, another material is printed upon on negative pole or plus plate current-collecting body in T-shape.
As the improved technical scheme of the present invention, the junction between the central plane of triangle two is tangent with two central planes
Cambered surface, positive/negative are located in the central plane of triangle and avoid the cambered surface.
Further, the angle between the central plane and central plane is 30~75 °, the length of the central plane and the cambered surface
The ratio between radius is 30:1~10:1.
Preferably, the angle between the central plane and central plane is 40~60 °, the length of the central plane and the half of the cambered surface
The ratio between footpath is 20:1~15:1.
As the improved technical scheme of the present invention, the base of the triangle is located on the split of described matrix.
As the improved technical scheme of the present invention, described matrix, base lid, the printing technology of baffle plate are:By 1~8%wt fluorine
Boric acid diazol is dissolved in 10~20%wt 2-ethyl hexyl acrylates, and it is equal to add 0.01~1%wt titanic oxide nano ultrasonic disperses
It is even, then add 10~25%wt containing hydrogen silicone oils, 15~30%wt acrylate, 15~60%wt polyurethane acroleic acid trees
Fat, 0.1~2%wt DAAs, 0.1~2%wt octanols mix, and form mixed slurry;High-speed stirred, ultrasonic disperse
Mixed slurry simultaneously repeats repeatedly, every kind of material in mixed slurry is uniformly dispersed, obtains photocuring 3D printing slurry;Will
In the photocuring 3D printing slurry injection 3D printer, the wavelength for adjusting curing light source is 300~400nm, and every layer of printing is thick
Spend for 100~2000 μm, the time for exposure is 2~10s.
Further, described matrix, base lid, the printing technology of baffle plate are:2~6%wt NITRODIAZONIUM FLUOROBORATEs are dissolved in 12
In~18%wt 2-ethyl hexyl acrylates, addition 0.1~0.5%wt titanic oxide nano ultrasonic disperses are uniform, then add 15
~22%wt containing hydrogen silicone oils, 20~28%wt acrylate, 24~48%wt polyurethane acrylic resins, 0.5~1.5%wt bis-
Pyruvic alcohol, 0.5~1.5%wt octanols mix, and form mixed slurry;High-speed stirred, ultrasonic disperse mixed slurry are laid equal stress on
Multiple operation is multiple, every kind of material in mixed slurry is uniformly dispersed, obtains photocuring 3D printing slurry;By the photocuring 3D
Print in slurry injection 3D printer, the wavelength for adjusting curing light source is 350~400nm, and every layer of print thickness is 500~1000
μm, the time for exposure is 4~8s.
Preferably, described matrix, base lid, the printing technology of baffle plate are:4%wt NITRODIAZONIUM FLUOROBORATEs are dissolved in 15%wt third
In olefin(e) acid monooctyl ester, add 0.3%wt titanic oxide nano ultrasonic disperses it is uniform, then add 20%wt containing hydrogen silicone oils,
25%wt acrylate, 33.7%wt polyurethane acrylic resins, 1%wt DAAs, 1%wt octanols mix, shape
Into mixed slurry;High-speed stirred, ultrasonic disperse mixed slurry simultaneously repeat repeatedly, disperse every kind of material in mixed slurry
Uniformly, photocuring 3D printing slurry is obtained;The photocuring 3D printing slurry is injected in 3D printer, adjusts curing light source
Wavelength is 365nm, and every layer of print thickness is 500 μm, time for exposure 5s.
Beneficial effect:
The present invention is improved traditional interdigital electrode configuration, the positive/negative of battery is located at triangular ramp
It on central plane, on the one hand can increase the amount of positive/negative active material, improve the chemical property of flexible battery, the opposing party
Face, for flexible battery when by bending stress, two central plane junctions of triangle will be by great squeezing action power, but triangle
The central plane of shape will not be influenceed by bending stress, i.e., positive/negative active material will not be by the shadow of flexible battery flexural deformation
Ring.In addition, also printing overhead gage between positive/negative, effectively positive/negative is limited in the groove of baffle plate composition and given
Positive/negative active material supporting force, it is therefore prevented that Collapse Deformation occurs in charge and discharge process for positive/negative active material, just/
Negative material is connected and causes flexible battery short-circuit.Present invention also offers matrix, base lid, the printing technology of baffle plate, process letter
It is single, obtained matrix, base lid, baffle plate flexible and tough sexual satisfaction flexible battery needs, grasped by multiple bending, discharge and recharge etc.
It is not broken after work, non-brittle.
Brief description of the drawings
Fig. 1 is the matrix of the present invention and the structural representation of base lid;
Fig. 2 is the electrode structure distribution map of one of triangular surface;
Fig. 3 is the structural representation of triangle toothed surface;
Fig. 4 is the structural representation after matrix and base lid encapsulation.
Embodiment
In order that those skilled in the art becomes apparent from legibly understanding the present invention, in conjunction with accompanying drawing and specific embodiment party
Formula, the present invention is described in detail.
The 3D printing method of the flexible battery of the present invention, mainly comprises the following steps:(1) modeled using three-dimensional software, if
Count flexible battery matrix 1 and the structure of base lid 2, the shape of collector (4,4 ') and position, the shape of positive/negative (7,7 ') slurry
With position, the shape of baffle plate 8 and position;(2) according to three dimensional model printing flexible battery matrix 1 and base lid 2, wherein, the He of matrix 1
The indoor design of base lid 2 has intermeshing triangle toothed surface, as shown in Figure 1;(3) conductive material is printed to the tooth of matrix 1
Shape face, form interdigital collector (4,4 '), the wherein root of interdigital collector (4,4 ') and the top of the triangle
Portion's crest line is perpendicular, the finger portion of the interdigital collector (4,4 ') be located at two waists of the triangle and with the triangle
Top crest line it is parallel (such as Fig. 1 amplification region 3);(4) by positive/negative (7,7 ') slurry print to positive/negative collector (4,
4 ') on, the positive/negative (7,7 ') of flexible battery is formed, it is preferable that wherein one in positive/negative (7, the 7 ') active material
Kind material is printed upon on negative or positive electrode collector (4,4 ') in U-typed, and another material is printed upon negative pole or positive pole in T-shape
On collector (4,4 ') as shown in Figure 2;(5) baffle plate 8, the distance from top three of the baffle plate 8 are printed between positive/negative (7,7 ')
The distance of angular central plane 5 is more than or equal to the positive/negative collector (4,4 ') and the positive/negative (7,7 ') thickness sum, such as
Shown in Fig. 3;(6) collective and base lid 2 are packaged together, its lance tooth shape area mutually coincide, and its internal voids forms electrolysis
The memory space of liquid, as shown in Figure 4.Preferably, multiple holes are distributed with the plane of the baffle plate 8, facilitate electrolyte positive/negative
Flowed between (7,7 ') pole.
In order to reduce active force of the bending stress to the junction of two central plane of triangle 5, between the central plane 5 of triangle two
Junction is the cambered surface 6 tangent with two central planes 5, and positive/negative (7,7 ') is located in the central plane 5 of triangle and avoids the cambered surface 6.
Further, the angle between the central plane 5 and central plane 5 is 30~75 °, the radius of the length of the central plane 5 and the cambered surface 6
The ratio between be 30:1~10:1.Preferably, the angle between the central plane 5 and central plane 5 is 40~60 °, the length of the central plane 5 with
The ratio between radius of the cambered surface 6 is 20:1~15:1.
In order to improve the overall structural strength of flexible battery, the base of triangle is preferably located on the split of matrix 1.
In addition, present invention also offers matrix 1, base lid 2, the printing technology of baffle plate 8, comprise the following steps:By 1~8%
Wt NITRODIAZONIUM FLUOROBORATEs are dissolved in 10~20%wt 2-ethyl hexyl acrylates, add 0.01~1%wt titanic oxide nanos ultrasound point
Dissipate uniformly, then add 10~25%wt containing hydrogen silicone oils, 15~30%wt acrylate, 15~60%wt polyurethane acroleic acids
Resin, 0.1~2%wt DAAs, 0.1~2%wt octanols mix, and form mixed slurry;High-speed stirred, ultrasound point
Dissipate mixed slurry and repeat repeatedly, every kind of material in mixed slurry is uniformly dispersed, obtain photocuring 3D printing slurry;
The photocuring 3D printing slurry is injected in 3D printer 9, the wavelength for adjusting curing light source is 300~400nm, and every layer prints
Thickness is 100~2000 μm, and the time for exposure is 2~10s.
Matrix 1, base lid 2, the embodiment of the printing technology of baffle plate 8 are as shown in embodiment 1-5.
Embodiment 1
8%wt NITRODIAZONIUM FLUOROBORATEs are dissolved in 20%wt 2-ethyl hexyl acrylates, add 1%wt titanic oxide nanos ultrasound
Be uniformly dispersed, then add 25%wt containing hydrogen silicone oils, 30%wt acrylate, 15.8%wt polyurethane acrylic resins,
0.1%wt DAAs, 0.1%wt octanols mix, and form mixed slurry;High-speed stirred, ultrasonic disperse mixed slurry
And repeat repeatedly, every kind of material in mixed slurry is uniformly dispersed, obtain photocuring 3D printing slurry;The light is consolidated
Change in 3D printing slurry injection 3D printer 9, the wavelength for adjusting curing light source is 300nm, and every layer of print thickness is 2000 μm, is exposed
It is 10s between light time.
Printing effect:Printing is smooth, nonchoking nozzle, but it is softness, mouldability that matrix 1, base lid 2,80 points of baffle plate, which is made,
Typically.
Embodiment 2
6%wt NITRODIAZONIUM FLUOROBORATEs are dissolved in 18%wt 2-ethyl hexyl acrylates, 0.5%wt titanic oxide nanos is added and surpasses
Sound is uniformly dispersed, then add 22%wt containing hydrogen silicone oils, 28%wt acrylate, 24.5%wt polyurethane acrylic resins,
0.5%wt DAAs, 0.5%wt octanols mix, and form mixed slurry;High-speed stirred, ultrasonic disperse mixed slurry
And repeat repeatedly, every kind of material in mixed slurry is uniformly dispersed, obtain photocuring 3D printing slurry;The light is consolidated
Change in 3D printing slurry injection 3D printer 9, the wavelength for adjusting curing light source is 365nm, and every layer of print thickness is 1000 μm, is exposed
It is 8s between light time.
Printing effect:Printing is smooth, nonchoking nozzle, and obtained matrix 1, base lid 2, baffle plate 8 are more soft, bent, into
Type is preferable.
Embodiment 3
4%wt NITRODIAZONIUM FLUOROBORATEs are dissolved in 15%wt 2-ethyl hexyl acrylates, 0.3%wt titanic oxide nanos is added and surpasses
Sound is uniformly dispersed, then add 20%wt containing hydrogen silicone oils, 25%wt acrylate, 33.7%wt polyurethane acrylic resins,
1%wt DAAs, 1%wt octanols mix, and form mixed slurry;High-speed stirred, ultrasonic disperse mixed slurry are laid equal stress on
Multiple operation is multiple, every kind of material in mixed slurry is uniformly dispersed, obtains photocuring 3D printing slurry;By the photocuring 3D
Print in slurry injection 3D printer 9, the wavelength that adjusts curing light source be 365nm, and every layer of print thickness is 500 μm, during exposure
Between be 5s.
Printing effect:Printing is smooth, nonchoking nozzle, and obtained matrix 1, base lid 2, the pliability of baffle plate 8 are moderate, bent,
Good moldability.
Embodiment 4
2%wt NITRODIAZONIUM FLUOROBORATEs are dissolved in 12%wt 2-ethyl hexyl acrylates, 0.1%wt titanic oxide nanos is added and surpasses
Sound is uniformly dispersed, then add 15%wt containing hydrogen silicone oils, 20%wt acrylate, 47.9%wt polyurethane acrylic resins,
1.5%wt DAAs, 1.5%wt octanols mix, and form mixed slurry;High-speed stirred, ultrasonic disperse mixed slurry
And repeat repeatedly, every kind of material in mixed slurry is uniformly dispersed, obtain photocuring 3D printing slurry;The light is consolidated
Change in 3D printing slurry injection 3D printer 9, the wavelength for adjusting curing light source is 365nm, and every layer of print thickness is 500 μm, is exposed
It is 4s between light time.
Printing effect:Printing is smooth, nonchoking nozzle, and obtained matrix 1, base lid 2, the pliability of baffle plate 8 are moderate, bent,
Good moldability.
Embodiment 5
1%wt NITRODIAZONIUM FLUOROBORATEs are dissolved in 10%wt 2-ethyl hexyl acrylates, add 0.01%wt titanic oxide nanos
Ultrasonic disperse is uniform, then adds 10%wt containing hydrogen silicone oils, 15%wt acrylate, 59.99%wt polyurethane acroleic acid trees
Fat, 2%wt DAAs, 2%wt octanols mix, and form mixed slurry;High-speed stirred, ultrasonic disperse mixed slurry are simultaneously
Repeat repeatedly, every kind of material in mixed slurry is uniformly dispersed, obtain photocuring 3D printing slurry;By the photocuring
In 3D printing slurry injection 3D printer 9, the wavelength for adjusting curing light source is 365nm, and every layer of print thickness is 100 μm, exposure
Time is 2s.
Printing effect:Smoother, slight plug nozzle is printed, obtained matrix 1, base lid 2, the pliability of baffle plate 8 are general, bendable
Folding, good moldability.
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 change or
Change.There is no necessity and possibility to exhaust all the enbodiments.As long as 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 method of flexible battery, mainly comprises the following steps:(1) modeled using three-dimensional software, design is flexible
The structure of cell matrix and base lid, the shape of collector and position, the shape of positive/negative slurry and position, baffle plate shape and
Position;(2) according to three dimensional model printing flexible battery matrix and base lid, wherein, matrix and base lid indoor design have intermeshing
Triangle toothed surface;(3) conductive material is printed to the toothed surface of matrix, interdigital collector is formed, wherein interdigital
The root of type collector and the top crest line of the triangle are perpendicular, and the finger portion of the interdigital collector is located at described three
Angular two waists are simultaneously parallel with the top crest line of the triangle;(4) positive/negative slurry is printed into positive/negative collector
On, form the positive/negative of flexible battery;(5) baffle plate, the distance from top triangle waist of the baffle plate are printed between positive/negative
The distance in face is more than or equal to the positive/negative collector and the positive/negative thickness sum;(6) collective and base lid are encapsulated in
Together, its lance tooth shape area mutually coincide, and its internal voids forms the memory space of electrolyte.
2. the 3D printing method of flexible battery according to claim 1, it is characterised in that:The plane distribution of the baffle plate has
Multiple holes.
3. the 3D printing method of flexible battery according to claim 1, it is characterised in that:The positive/negative active material
In one of which material be printed upon in U-typed on negative or positive electrode collector, another material in T-shape be printed upon negative pole or
On plus plate current-collecting body.
4. the 3D printing method of flexible battery according to claim 1, it is characterised in that:Between the central plane of triangle two
Junction be the cambered surface tangent with two central planes, positive/negative is located in the central plane of triangle and avoids the cambered surface.
5. the 3D printing method of flexible battery according to claim 1, it is characterised in that:Between the central plane and central plane
Angle is 30~75 °, and the ratio between radius of the length of the central plane and the cambered surface is 30:1~10:1.
6. the 3D printing method of flexible battery according to claim 5, it is characterised in that:Between the central plane and central plane
Angle is 40~60 °, and the ratio between radius of the length of the central plane and the cambered surface is 20:1~15:1.
7. the 3D printing method of flexible battery according to claim 1, it is characterised in that:The base of the triangle is located at
On the split of described matrix.
8. the 3D printing method of flexible battery according to claim 1, it is characterised in that described matrix, base lid, baffle plate
Printing technology is:1~8%wt NITRODIAZONIUM FLUOROBORATEs are dissolved in 10~20%wt 2-ethyl hexyl acrylates, add 0.01~1%wt bis-
Preparation of Nanocrystal TiO ultrasonic disperse is uniform, then add 10~25%wt containing hydrogen silicone oils, 15~30%wt acrylate, 15~
60%wt polyurethane acrylic resins, 0.1~2%wt DAAs, 0.1~2%wt octanols mix, and form mixing slurry
Material;High-speed stirred, ultrasonic disperse mixed slurry simultaneously repeat repeatedly, every kind of material in mixed slurry is uniformly dispersed, obtain
To photocuring 3D printing slurry;The photocuring 3D printing slurry is injected in 3D printer, the wavelength for adjusting curing light source is
300~400nm, every layer of print thickness is 100~2000 μm, and the time for exposure is 2~10s.
9. the 3D printing method of flexible battery according to claim 8, it is characterised in that described matrix, base lid, baffle plate
Printing technology is:2~6%wt NITRODIAZONIUM FLUOROBORATEs are dissolved in 12~18%wt 2-ethyl hexyl acrylates, add 0.1~0.5%wt
Titanic oxide nano ultrasonic disperse is uniform, then adds 15~22%wt containing hydrogen silicone oils, 20~28%wt acrylate, 24
~48%wt polyurethane acrylic resins, 0.5~1.5%wt DAAs, 0.5~1.5%wt octanols mix, and are formed
Mixed slurry;High-speed stirred, ultrasonic disperse mixed slurry simultaneously repeat repeatedly, make every kind of material in mixed slurry scattered equal
It is even, obtain photocuring 3D printing slurry;The photocuring 3D printing slurry is injected in 3D printer, adjusts the ripple of curing light source
A length of 350~400nm, every layer of print thickness is 500~1000 μm, and the time for exposure is 4~8s.
10. the 3D printing method of flexible battery according to claim 9, it is characterised in that described matrix, base lid, baffle plate
Printing technology be:4%wt NITRODIAZONIUM FLUOROBORATEs are dissolved in 15%wt 2-ethyl hexyl acrylates, 0.3%wt titanium dioxide is added and receives
Ground rice ultrasonic disperse is uniform, then adds 20%wt containing hydrogen silicone oils, 25%wt acrylate, 33.7%wt polyurethane acroleic acids
Resin, 1%wt DAAs, 1%wt octanols mix, and form mixed slurry;High-speed stirred, ultrasonic disperse mixed slurry
And repeat repeatedly, every kind of material in mixed slurry is uniformly dispersed, obtain photocuring 3D printing slurry;The light is consolidated
Change in 3D printing slurry injection 3D printer, the wavelength for adjusting curing light source is 365nm, and every layer of print thickness is 500 μm, exposure
Time is 5s.
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CN111564635A (en) * | 2020-04-22 | 2020-08-21 | 北京科技大学 | Flexible stretchable zinc polymer battery and preparation method thereof |
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CN112467083A (en) * | 2020-11-20 | 2021-03-09 | 南京理工大学 | Method for 3D printing of three-dimensional cathode |
WO2023071016A1 (en) * | 2021-10-25 | 2023-05-04 | 广州市香港科大霍英东研究院 | Interdigital capacitor, bending sensor and fabrication method therefor |
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CN108711638A (en) * | 2018-05-10 | 2018-10-26 | 东莞华南设计创新院 | A kind of 3D printing system and Method of printing of flexible battery |
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CN111564635B (en) * | 2020-04-22 | 2021-10-22 | 北京科技大学 | Flexible stretchable zinc polymer battery and preparation method thereof |
CN112467083A (en) * | 2020-11-20 | 2021-03-09 | 南京理工大学 | Method for 3D printing of three-dimensional cathode |
WO2023071016A1 (en) * | 2021-10-25 | 2023-05-04 | 广州市香港科大霍英东研究院 | Interdigital capacitor, bending sensor and fabrication method therefor |
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