CN110237995A - A kind of device and method preparing electrode - Google Patents
A kind of device and method preparing electrode Download PDFInfo
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- CN110237995A CN110237995A CN201910531839.0A CN201910531839A CN110237995A CN 110237995 A CN110237995 A CN 110237995A CN 201910531839 A CN201910531839 A CN 201910531839A CN 110237995 A CN110237995 A CN 110237995A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/14—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by electrical means
- B05D3/141—Plasma treatment
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Abstract
The invention discloses a kind of device and method for preparing electrode.The equipment for preparing electrode includes: roll-to-roll device, for stretching to stretchable substrate；Apparatus for coating, applying conductive ink is in substrate after the stretch to form electrode layer.The equipment for preparing electrode that the embodiment of the present invention proposes, stretches stretchable substrate using roll-to-roll device, and then roll-to-roll process is applied in the production equipment of stretchable electrode, realizes and produces on the line of stretchable electrode；The characteristics of using roll-to-roll process simple and effective, the cost of manufacture of stretchable electrode is reduced, realizes the mass production of stretchable electrode.
Description
Technical field
The present invention relates to stretchable electrode fabrication fields, and in particular to a kind of device and method for preparing electrode.
Background technique
With unmanned vehicle, wearable device, Internet of Things, man-machine interactive, interconnection type electronics iterative method, be easy to dress
The visual field of people is gradually come into the electric device of bio-compatibility.This will need the electronic device of a large amount of better adaptabilities, be
Adapt to various environment, various surfaces, the importance of stretchable device will be increasingly prominent.In order to realize the stretchable of device,
With regard to needing stretchable electrode.
The work obtained according to domestic and international researcher in stretchable electronic field, it can be deduced that following information: in laboratory
Level, the research about stretchable electronics had obtained huge progress in recent years, including developed a variety of stretchable strategies, for example,
Stretch material, geometry designs, process exploitation etc., and the structure of experiment can be made to match with analog simulation result, it can draw
The concept for stretching electronics is put to reality.However, currently, the main research of stretchable electronics also focuses on laboratory, by processing procedure work
Stability, the conduction that complexity (needing to combine multiple steps such as photoetching, transfer, bonding, alignment, encapsulation), the heavy burden of skill stretch
The limitation for the factors such as performance is poor.Therefore, currently, the research for producing stretchable electrode in enormous quantities is also fewer, being difficult to realize can
Stretch the mass production of electrode.
Summary of the invention
The purpose of the embodiment of the present invention is that a kind of device and method for preparing electrode are provided, to realize stretchable electrode
Produce in enormous quantities.
In order to solve the above-mentioned technical problem, the embodiment of the present invention provides a kind of equipment for preparing electrode, comprising:
Roll-to-roll device, for being stretched to stretchable substrate；
Apparatus for coating, applying conductive ink is in substrate after the stretch to form electrode layer.
Optionally, the roll-to-roll device includes unwinding device, wrap-up and is arranged in the unwinding device and institute
The stretching regulating device between wrap-up is stated, the stretchable substrate that the unwinding device is released is wound through the stretching and adjusts
On the wrap-up, the regulating device that stretches is used for the base in the stretching regulating device for winding after device
Bottom is stretched.
Optionally, the stretching regulating device includes the first roll shaft, the second roll shaft and third roll shaft, and the unwinding device is put
Substrate out is successively wound through after the first roll shaft, the second roll shaft and third roll shaft winding on the wrap-up, and described the
The revolving speed of one roll shaft or/and the third roll shaft is adjustable, and the revolving speed for adjusting first roll shaft or/and the third roll shaft makes
The revolving speed for obtaining the third roll shaft is greater than the revolving speed of first roll shaft, to positioned at first roll shaft and the third roll shaft
Between substrate stretched.
Optionally, the stretching regulating device includes the first roll shaft, the second roll shaft and third roll shaft, and the unwinding device is put
Substrate out is successively wound through after the first roll shaft, the second roll shaft and third roll shaft winding on the wrap-up, and described the
The position-adjustable of two roll shafts, the position for adjusting second roll shaft make second roll shaft far from first roll shaft and institute
Third roll shaft is stated, to stretch to the substrate between first roll shaft and the third roll shaft.
Optionally, the equipment further includes drying unit, and the drying unit is for drying the electrode layer of formation.
Optionally, the structure of the electrode layer is reticular structure.
In order to solve the above-mentioned technical problem, the embodiment of the present invention also provides a kind of method for preparing electrode, comprising:
Stretchable substrate is stretched using roll-to-roll device；
Use in the substrate of apparatus for coating after the stretch applying conductive ink to form electrode layer.
Optionally, before the roll-to-roll device of the use stretches stretchable substrate, the method also includes:
Plasma surface treatment is carried out to the substrate, alternatively, carrying out coupling agent treatment to the substrate.
Optionally, the method also includes:
Drying and processing is carried out to the electrode layer of formation.
Optionally, the temperature of drying is 60 DEG C~80 DEG C.
The equipment for preparing electrode that the embodiment of the present invention proposes, stretches stretchable substrate using roll-to-roll device,
And then be applied to roll-to-roll process in the production equipment of stretchable electrode, it realizes and is produced on the line of stretchable electrode；It utilizes
The characteristics of roll-to-roll process simple and effective, reduces the cost of manufacture of stretchable electrode, realizes the high-volume of stretchable electrode
Production.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the schematic diagram for the equipment that first embodiment of the invention prepares electrode；
Fig. 2 is the schematic diagram for the equipment that second embodiment of the invention prepares electrode；
Fig. 3 is the schematic diagram for the method that third embodiment of the invention prepares electrode.
Description of symbols:
100-unwinding devices；101-the first roll shaft；102-the second roll shaft；
103-apparatus for coating；104-drying units；105-third roll shafts；
106-wrap-ups.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
In the related technology, for the angle of Stretch material and structure, the tensility for obtaining electrode can be by three
Strategy is planted to realize:
(1) substrate level
The key problem of this method reply is for the tensility of electrode to be decomposed into local bending.It will be ultra-thin thin
Film is attached in the substrate of pre-stretching, if the tensile strength of film and substrate meets matched condition, after discharging substrate,
Fold-type surface texture, machine of this strain relief due to facilitating increase device with low elasticity modulus will be obtained
Tool stability.
In this way, it may be considered that electrode is formed on ultra-thin thin polymer film, is then transferred to have and glue
In the elastic substrates of property.The thickness of thin polymer film is thinner, is more conducive to convert Curved for drawing force under stress conditions
Become.But during forming fold, the shearing force for being separated from each other film and substrate can be generated, therefore, it is necessary to guarantee to gather
The thickness for closing object film is sufficiently thin, and the bonding of electrode and elastic substrates is sufficiently tight.The electricity formed according to this guiding theory
Conductive material is such as coated in dimethyl silicone polymer (PDMS) elastic substrates of pre-stretching by pole, by discharging stress, makes electricity
Pole forms wavy pleated structure, reduces the stress directly acted on electrode.
Another typical structure of this substrate pre-stretching strategy is the complex of conductive material and elastic substrates.Passing through will
It is previously deposited at AgNWs (nano-silver thread) on silicon wafer and uncured PDMS molding method jointly, AgNWs/PDMS is made
Composite conductive thin film.Since AgNWs and PDMS flexible base layer has different modulus, elastomeric basal layer is when stretching release
Recovery deformation and by opposite effect power, and the conductive layer deformability of high-modulus is small, can only be discharged in the form of fold
Remaining stress.The appearance of fold enables conductor to bear bigger deformation, and when conductor stretches again, pulling force can even up fold
Without by surface drawing crack.The stretchable conductive film obtained by this method, after having carried out 40 stretchings, resistance is several
It does not change.
(2) pixel level:
The design core of " island-bridge " (rigid-island) structure is to focus the stress on stretchable unit.It is this
The starting point of design is, is divided into stretchable portion and non-stretchable part, assigns draftability to stretchable conducting wire.It is stretchable
Conducting wire can be arc, and perhaps snakelike bent metal strips adapt to external stress pair by the bending or torsional deformation of conducting wire
Tensile deformation caused by conductive film entirety.Meanwhile stretchable conducting wire is also possible to elastic conductor, when stretching entire conductive film,
Elastic conductor directly bears external pull effect and generates tensile deformation.Research emphasis focuses primarily on how to carry out geometry to conducting wire
To increase tensile property, this wiring can be in mathematics for definition and design (wavelength of such as snakelike cabling, waveform angle, thickness)
On emulated by stringent definition, and by FInite Element, to instruct experimental design；Conducting wire can be coplanar
, it is also possible to non-coplanar；Can Direct precipitation goes out various figures in pre-stretched elastic substrate by way of photoetching,
Conductive unit can be transferred in the elastic substrates of pre-stretching by way of transfer, form the cabling form of non-co-planar type,
These layout strategies have been widely used in electronic skin in recent years, due to the complexity of processing procedure, at present or with laboratory
Research based on.
(3) material level:
This is a kind of scheme closest to stretchable electronic concepts, it is desirable that substrate, conducting wire and functional material are being drawn
Continue to keep respective functionality when stretching deformation, and when simultaneously tensile deformation occurs for three, conductive film has integrally still been kept
Whole and work normally, i.e., so-called essence is stretchable.Such as a kind of complete stretchable luminescent device, select AgNW-PUA as can draw
The conductive electrode stretched, and use efficient luminescent material as luminescent layer, finally obtained Stretchable polymeric luminescent device is most
Big tensile strength is 120%, maximum brightness 2200cd/m2, and maximum current efficiency is 11.4cd/A, illustrates stretchable shine
The feasibility of device.
Three of the above strategy is not both under line, being the scheme for producing stretchable electrode on a line, Bu Nengshi
The mass production of existing stretchable electrode.
In order to realize the mass production of stretchable electrode, the embodiment of the present invention proposes a kind of equipment for preparing electrode,
It include: roll-to-roll device, for being stretched to stretchable substrate；Apparatus for coating is coated in substrate after the stretch and leads
Electric ink is to form electrode layer.
The equipment for preparing electrode that the embodiment of the present invention proposes, stretches stretchable substrate using roll-to-roll device,
And then be applied to roll-to-roll process in the production equipment of stretchable electrode, it realizes and is produced on the line of stretchable electrode；It utilizes
The characteristics of roll-to-roll process simple and effective, reduces the cost of manufacture of stretchable electrode, realizes the high-volume of stretchable electrode
Production.
Technology contents of the invention will be discussed in detail by specific embodiment below.
First embodiment:
Fig. 1 is the schematic diagram for the equipment that first embodiment of the invention prepares electrode.The equipment for preparing electrode includes roll-to-roll
Device and apparatus for coating 103.Roll-to-roll device is for stretching stretchable substrate.Apparatus for coating is for base after the stretch
Applying conductive ink is on bottom to form electrode layer.So that the compound electrode in substrate with electrode layer is prepared, due to electrode
Layer is formed in substrate in the case where substrate is in tensional state, and therefore, the extremely stretchable electrode of the Combined type electric prepared should
Stretchable electrode includes the electrode layer of stretchable substrate and formation on this substrate.In one embodiment, electrically conductive ink
It can be Nano silver solution, substrate can be dimethyl silicone polymer (PDMS) elastic substrates.
The equipment for preparing electrode that the embodiment of the present invention proposes, stretches stretchable substrate using roll-to-roll device,
And then be applied to roll-to-roll process in the production equipment of stretchable electrode, it realizes and is produced on the line of stretchable electrode；It utilizes
The characteristics of roll-to-roll process simple and effective, reduces the cost of manufacture of stretchable electrode, realizes the high-volume of stretchable electrode
Production.
As shown in Figure 1, roll-to-roll device includes unwinding device 100, wrap-up 106 and is arranged in unwinding device 100
Stretching regulating device 20 between wrap-up 106.The stretchable substrate 10 that unwinding device 100 is released is wound through the drawing
Winding is on the wrap-up 106 after stretching regulating device 20.Stretching regulating device 20 can be to wound on stretching regulating device
Substrate on 20 is stretched.
As shown in Figure 1, the top for stretching regulating device 20 is arranged in apparatus for coating 103, thus, apparatus for coating can drawn
Applying conductive ink is in substrate after stretching to form electrode layer.
In one embodiment, stretching regulating device 20 may include the first roll shaft 101, the second roll shaft 102 and third roller
Axis 105.Tensility substrate 10 is wound on unwinding device 100, the tensility substrate 10 that unwinding device 100 is released successively is rolled up
Around by winding on wrap-up 106 after the first roll shaft 101, the second roll shaft 102 and third roll shaft 105.In general, winding dress
106 pulling force to advance for providing coiled material i.e. tensility substrate 10 are set, unwinding device 100 and the cooperation of wrap-up 106 control
The speed that substrate 10 is advanced.
As shown in Figure 1, apparatus for coating 103 is arranged above the second roll shaft 102, for wound on the second roll shaft 102
Stretching after 10 surface applying conductive ink of substrate.It is easily understood that apparatus for coating 103 can be using blade coating, narrow
Seam coating and one of extrusion coated.
Under original state, the substrate 10 between unwinding device 100 and wrap-up 106 is in the raw.In order to prepare
Electrically conductive ink is coated in the substrate 10 being stretched by stretchable electrode out, apparatus for coating 103.The conduction of apparatus for coating coating
Ink can be Nano silver solution.In order to obtain stretchable electrode, when 103 basad applying conductive ink of apparatus for coating, need
Substrate 10 is wanted to be in coating tensional state.In the present embodiment, the first roll shaft 101, the second roll shaft 102 and third roll shaft 105 are matched
Close come on the second roll shaft 102 substrate stretch, by the substrate tension on the second roll shaft 102 to be coated with
Tensional state, at this point, the tension of substrate is maintained at coating tension on the second roll shaft 102.Coating tension is in for substrate
Tension possessed by substrate when being coated with tensional state.The size for being coated with tension can be determined according to the property of stretchable substrate.
It is easily understood that in roll-to-roll device, the tension of the substrate between unwinding device 100 and the first roll shaft 101
Tension (i.e. coating tension), the third roll shaft 105 of substrate between (make the test tension), the first roll shaft 101 and third roll shaft 105
The tension (i.e. winding tension) of substrate between wrap-up 106, these three tension are usually different.Therefore, it uses
Roll-to-roll device can carry out the stretching of multistage differential tension to substrate, in the drawing for making the test, being coated with and winding each stage substrate
Expansion force can be different, are making the test and winding or other stage control normal size tension stablize substrate, in coating stage
Increase to the stretching of substrate so that substrate is in coating tensional state, thus after substrate recovery nature, electrode layer can be
It is in accordion in substrate, ensure that electrode layer still has certain electric conductivity after the stretch, ensure that the performance of stretchable electrode.
Have skidded phenomenon in drawing process in order to prevent, need to increase the first roll shaft 101 and third roll shaft 105 relative to
The stiction of substrate.In one embodiment, the surface of the first roll shaft 101 and third roll shaft 105 coats great friction coefficient
Material, or the first roll shaft 101 and 105 surface of third roll shaft is made to be in high friction structure, it is thus possible to increase the first roll shaft
Stiction between 101 and substrate, and increase the stiction between third roll shaft 105 and substrate, avoid the first roll shaft
It skids between 101 and third roll shaft 105 and substrate, so that the first roll shaft 101 and third roll shaft 105 and substrate 10 are opposing stationary.
Similarly, it skids between the second roll shaft 102 and substrate 10 in order to prevent, the surface of the second roll shaft 102 can also coat high friction system
Number material, or make the surface of the second roll shaft 102 in high friction structure, to increase the static friction between the second roll shaft 102 and substrate
Power.
In the present embodiment, the revolving speed of the first roll shaft 101 is ω 1, and the revolving speed of third roll shaft 105 is ω 2.In order to being located at
Substrate between first roll shaft 101 and third roll shaft 105 is stretched, in one embodiment, the first roll shaft or/and third roller
The revolving speed of axis is adjustable.
In one embodiment, the process stretched to the substrate between the first roll shaft 101 and third roll shaft 105 can be with
Include:
S111: adjusting the revolving speed of the first roll shaft 101 or/and third roll shaft 105, so that 2 > ω of ω 1, at this point, third roll shaft
105 revolving speed is greater than the revolving speed of the first roll shaft 101, and the substrate 10 on the second roll shaft 102 is stretched, wound on the second roller
The tension of substrate on axis 102 increases.It is easily understood that the revolving speed of third roll shaft 105 can be increased, so that 2 > ω of ω 1, or
Person reduces the revolving speed of the first roll shaft 101, so that 2 > ω of ω 1, alternatively, adjusting the first roll shaft 101 and third roll shaft 105 simultaneously
Revolving speed, so that 2 > ω of ω 1.
S112: when the tension of the substrate on the second roll shaft 102 increases to coating tension, the first roller is slowly adjusted
The revolving speed of axis 101 and/or third roll shaft 105, so that ω 2=ω 1, so that of the substrate on the second roll shaft 102
Power is maintained at coating tension.It is easily understood that can reduce the revolving speed of third roll shaft 105, so that ω 2=ω 1, alternatively, increasing
The revolving speed of big first roll shaft 101, so that ω 2=ω 1, alternatively, the revolving speed of the first roll shaft 101 and third roll shaft 105 is adjusted simultaneously,
So that ω 2=ω 1.
When the tension of the substrate on the second roll shaft 102 is maintained at coating tension, it is located at the first roll shaft 101 and the
Substrate between three roll shafts 105 is in stable coating tensional state, and apparatus for coating 103 is coated, electrically conductive ink is coated with
In the substrate on the second roll shaft 102.
The speed of apparatus for coating coating electrode layer can by the transmission speed of substrate target coating width and thickness, substrate with
And the factors such as amount out of ink of apparatus for coating determine, in one embodiment, the speed of apparatus for coating coating electrode layer is 0.2m/
Min~2m/min.
After stopping coating, the revolving speed of adjustable first roll shaft 101 and third roll shaft 105, so that 2 < ω of ω 1, at this point,
Revolving speed of the revolving speed of third roll shaft 103 less than the first roll shaft 101, Substrate Contraction, so that the substrate on the second roll shaft 102
Tension reduce, restore to natural drawing state.
In order to increase fastness of the electrode layer in substrate, when substrate passes through third roll shaft 105, electrode layer in order to prevent
It adheres on third roll shaft 105, which can also include drying unit 104, as shown in Figure 1.The setting of drying unit 104 is the
The top of two roll shafts 102, and after the processing procedure of apparatus for coating 103, it is located at before third roll shaft 105.Apparatus for coating 103 is used for
Dry the electrode layer in the substrate 10 on the second roll shaft 102.After drying unit 104 dries electrode layer, it can increase
Adhesiveness of the electrode layer in substrate, prevents electrode layer from falling off in substrate recovery process, meanwhile, drying unit 104 is to electrode
After layer drying, electrode layer can also be prevented by being adhered on third roll shaft 105 during third roll shaft 105, avoid electricity
The damage of pole layer, ensure that the performance of combination electrode.
In one embodiment, the drying temperature of drying unit is 60 DEG C~80 DEG C.It in specific implementation, can be according to leading
The concentration of electric ink, the thickness of substrate and coating tension determine drying temperature.
In one embodiment, the electrode layer being formed in substrate is reticular structure, and the electrode layer of this structure is in substrate
Preferably fold can be deformed when returning to normal and discharges stress, meanwhile, the electrode layer adherent base of this structure is close and electric
Resistiveization is small, can be stretched with the stretching of substrate in combination electrode drawing process, will not influence the electrical of electrode layer
Performance ensure that the tensility energy of combination electrode.
In one embodiment, the equipment for preparing electrode can also include tension detecting apparatus, and tension detecting apparatus is used to
Detect the tension of the substrate on the second roll shaft 102.When tension detecting apparatus detects the substrate on the second roll shaft 102
Tension reach coating tension when, stretch regulating device 20 stopping substrate being continued to stretch so that wound on the second roll shaft 102
The tension of upper substrate is maintained at coating tension.
Second embodiment:
Fig. 2 is the schematic diagram for the equipment that second embodiment of the invention prepares electrode.Different from the first embodiment first
The position-adjustable of roll shaft 101 and/or third roll shaft 105.For example, the position-adjustable of the first roll shaft 101, by adjusting first
The position of roll shaft 101 can increase substrate 10 from the winding path length between 100 to the second roll shaft 102 of unwinding device, thus,
The tension of the substrate on the second roll shaft 102 can be increased.Similarly, the position of third roll shaft 105 is adjustable, passes through tune
Section third roll shaft 105 can increase substrate 10 from the second roll shaft 102 to the winding path length between wrap-up 106, thus,
The tension of the substrate on the second roll shaft 102 can be increased.
In one embodiment, the position-adjustable of the first roll shaft 101, therefore, to the first roll shaft 101 and third roll shaft
The process that substrate between 105 is stretched may include:
The position of the first roll shaft 101 is adjusted, so that the volume between the unwinding device 100 and second roll shaft 102
The electrical path length that detours increases.In Fig. 2, location A is the initial position of the first roll shaft 101, and A ' is the first roll shaft 101 in adjustment process
In a position, when the first roll shaft 101 is adjusted by location A to the position A ', between unwinding device 100 and the second roll shaft 102
Winding path length increase so that the substrate between unwinding device 100 and the second roll shaft 102 is stretched, and then make
The tension for obtaining the substrate between the first roll shaft 101 and the second roll shaft 102 increases, and makes the base on the second roll shaft 102
The tension at bottom 10 increases.When the tension of the substrate on the second roll shaft 102 increases to coating tension, stop adjusting first
The position of roll shaft 101, so that the first roll shaft 101 is maintained at current location, so that the substrate on the second roll shaft 102
Tension is maintained at coating tension, and the coating that the substrate between the first roll shaft 101 and third roll shaft 105 is in stable stretches shape
State.
In another embodiment, the position-adjustable of third roll shaft 105, therefore, to the first roll shaft 101 and third roll shaft
The process that substrate between 105 is stretched may include:
The position for adjusting third roll shaft 105, so that the winding path between the second roll shaft 102 and wrap-up 106 is long
Degree increases.As shown in Fig. 2, B location is the initial position of third roll shaft 105, B ' is one of third roll shaft 105 in adjustment process
A position, the winding when third roll shaft 105 is adjusted by B location to the position B ', between the second roll shaft 102 and wrap-up 106
Path length increases, so that the substrate between the second roll shaft 102 and wrap-up 106 is stretched, so that second
The tension of substrate between roll shaft 102 and third roll shaft 105 increases, and makes substrate 10 on the second roll shaft 102
Tension increases.When the tension of the substrate on the second roll shaft 102 increases to coating tension, stop adjusting third roll shaft
105 position, so that third roll shaft 105 is maintained at current location, so that the tension of the substrate on the second roll shaft 102
It is maintained at coating tension, the substrate between the first roll shaft 101 and third roll shaft 105 is in stable coating tensional state.
In another embodiment, the position-adjustable of the second roll shaft 102, therefore, to the first roll shaft 101 and third roll shaft
The process that substrate between 105 is stretched may include:
The position for adjusting the second roll shaft 102 makes the second roll shaft 102 far from the first roll shaft 101 and third roll shaft 105, so that
The winding path length obtained between the first roll shaft 101 and third roll shaft 105 increases, to positioned at the first roll shaft 101 and third roll shaft
Substrate between 105 is stretched.As shown in Fig. 2, location of C is the initial position of the second roll shaft 102, the second roll shaft 102 is located at C
When position, the second roll shaft 102 is h1 relative to the height of the first roll shaft 101 or third roll shaft 105.C ' is that the second roll shaft 102 exists
A position in adjustment process, when the second roll shaft 102 is adjusted by location of C to the position C ', the second roll shaft 102 is relative to first
The height of roll shaft 101 or third roll shaft 105 increases to h2 by h1, so that the winding between the first roll shaft 101 and third roll shaft 105
Path length increases, so that the substrate on the second roll shaft 102 is stretched, so that the base on the second roll shaft 102
The tension at bottom 10 increases.When the tension of the substrate on the second roll shaft 102 increases to coating tension, stop adjusting second
The position of roll shaft 102, so that the second roll shaft 102 is maintained at current location, so that the substrate on the second roll shaft 102
Tension is maintained at coating tension, and the coating that the substrate between the first roll shaft 101 and third roll shaft 105 is in stable stretches shape
State.
It is easily understood that in another embodiment, the first roll shaft 101,102 and of the second roll shaft can also be adjusted simultaneously
The position of any two in third roll shaft 105, alternatively, adjusting the first roll shaft 101, the second roll shaft 102 and third roll shaft simultaneously
105 position, so that the winding path length between unwinding device 100 and wrap-up 106 increases, so that wound on second
The tension of substrate 10 on roll shaft 102 increases, so that the bases between the first roll shaft 101 and third roll shaft 105
In coating tensional state.
When the tension of the substrate on the second roll shaft 102 is maintained at coating tension, apparatus for coating 103 is applied
Electrode material is coated in the substrate on the second roll shaft 102 by cloth.104 pairs of drying unit are coated on the substrate 10
Electrode material is dried.For electrode material after being oven-dried as substrate is after third roll shaft 150, substrate is restored to normal drawing
State is stretched, the stretchable electrode of combined type is obtained, stretchable electrode is wound on wrap-up 106 with substrate.
After stopping coating, adjustable stretching regulating device 20 makes stretching regulating device 20 return to original state, substrate
It shrinks, so that the tension of the substrate on the second roll shaft 102 reduces, restores to natural drawing state.
3rd embodiment:
Inventive concept based on the above embodiment, the embodiment of the present invention propose a kind of method for preparing electrode.Fig. 3 is this
Invention 3rd embodiment prepares the schematic diagram of the method for electrode, this prepares the method for electrode, may include:
Stretchable substrate is stretched using roll-to-roll device；
Use in the substrate of apparatus for coating after the stretch applying conductive ink to form electrode layer.
The method for preparing electrode that the embodiment of the present invention proposes, stretches stretchable substrate using roll-to-roll device,
And then be applied to roll-to-roll process in the production equipment of stretchable electrode, it realizes and is produced on the line of stretchable electrode；It utilizes
The characteristics of roll-to-roll process simple and effective, reduces the cost of manufacture of stretchable electrode, realizes the high-volume of stretchable electrode
Production.
The roll-to-roll device used when preparing electrode can be any one roll-to-roll device in above-described embodiment.
In order to increase the adhesiveness of electrode layer and substrate, stretchable substrate is carried out to stretch it using roll-to-roll device
Before, the method also includes: surface hydrophilic processing is carried out to the substrate.Specifically, plasma body surface can be carried out to substrate
Surface treatment, alternatively, coupling agent treatment is carried out to substrate, to change the hydrophilic ability of substrate surface, to enhance substrate to conduction
The adhesive capacity of ink.
In order to further enhance substrate to the adhesive capacity of electrode layer, the method for preparing electrode can also include: to formation
Electrode layer carry out drying and processing.The temperature of drying is 60 DEG C~80 DEG C.
In the description of the embodiment of the present invention, it is to be understood that term " middle part ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom", "inner", "outside" be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the description of the embodiment of the present invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Although disclosed herein embodiment it is as above, the content only for ease of understanding the present invention and use
Embodiment is not intended to limit the invention.Technical staff in any fields of the present invention is taken off not departing from the present invention
Under the premise of the spirit and scope of dew, any modification and variation, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of equipment for preparing electrode characterized by comprising
Roll-to-roll device, for being stretched to stretchable substrate；
Apparatus for coating, applying conductive ink is in substrate after the stretch to form electrode layer.
2. equipment according to claim 1, which is characterized in that the roll-to-roll device includes unwinding device, wrap-up
And the stretching regulating device between the unwinding device and the wrap-up is set, what the unwinding device was released draws
Stretching winding after substrate is wound through the stretching regulating device, on the wrap-up, the stretching regulating device is used for volume
The substrate being wound in the stretching regulating device is stretched.
3. equipment according to claim 2, which is characterized in that the stretching regulating device includes the first roll shaft, the second roller
Axis and third roll shaft, after the substrate that the unwinding device is released successively is wound through the first roll shaft, the second roll shaft and third roll shaft
On the wrap-up, the revolving speed of first roll shaft or/and the third roll shaft is adjustable for winding, adjusts first roller
The revolving speed of axis or/and the third roll shaft makes the revolving speed of the third roll shaft greater than the revolving speed of first roll shaft, with contraposition
Substrate between first roll shaft and the third roll shaft is stretched.
4. equipment according to claim 2, which is characterized in that the stretching regulating device includes the first roll shaft, the second roller
Axis and third roll shaft, after the substrate that the unwinding device is released successively is wound through the first roll shaft, the second roll shaft and third roll shaft
Winding is on the wrap-up, the position-adjustable of second roll shaft, and the position of adjusting second roll shaft makes described
Second roll shaft is far from first roll shaft and the third roll shaft, between first roll shaft and the third roll shaft
Substrate stretched.
5. equipment according to claim 1, which is characterized in that the equipment further includes drying unit, the drying unit
For being dried to the electrode layer of formation.
6. equipment according to claim 1, which is characterized in that the structure of the electrode layer is reticular structure.
7. a kind of method for preparing electrode characterized by comprising
Stretchable substrate is stretched using roll-to-roll device；
Use in the substrate of apparatus for coating after the stretch applying conductive ink to form electrode layer.
8. the method according to the description of claim 7 is characterized in that being carried out using roll-to-roll device to stretchable substrate described
Before stretching, the method also includes:
Plasma surface treatment is carried out to the substrate, alternatively, carrying out coupling agent treatment to the substrate.
9. the method according to the description of claim 7 is characterized in that the method also includes:
Drying and processing is carried out to the electrode layer of formation.
10. according to the method described in claim 9, it is characterized in that, the temperature of drying is 60 DEG C~80 DEG C.
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