CN110311152A - Encapsulating method - Google Patents
Encapsulating method Download PDFInfo
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- CN110311152A CN110311152A CN201910604351.6A CN201910604351A CN110311152A CN 110311152 A CN110311152 A CN 110311152A CN 201910604351 A CN201910604351 A CN 201910604351A CN 110311152 A CN110311152 A CN 110311152A
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- seal
- sealing element
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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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0276—Sealing means characterised by their form
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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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0286—Processes for forming seals
-
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gasket Seals (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a kind of encapsulating methods, this method comprises: providing first seal and second seal, provide by sealing element；By vacuum action in vacuum platform to the direction far from the vacuum platform stack gradually positioning place the first seal, it is described by sealing element and the second seal, form the internal three-decker in vacuum state and bubble-free, the central area for being located at the first seal by sealing element, the area of the binding domain of the vacuum platform is greater than or equal to the area of the second seal, and the area of the second seal is greater than the area of the first seal；It is sealed the first seal and second seal by sealing element to described.In this way, the present invention can simply bubble-free seal, and airtight quality is good, and product yield is high, provide technical foundation for automated production.
Description
Technical field
The present invention relates to battery technology field more particularly to a kind of encapsulating methods.
Background technique
Fuel cell is a kind of electrochemical cell, and cardinal principle is to go back the chemical energy in fuel and oxidant through oxidation
Original reaction is converted into electric energy.Proton Exchange Membrane Fuel Cells (PEMFC, Proton Exchange Membrane Fuel
Cell) as the important branch of fuel cell field, in addition to possessing fuel cell generality feature such as energy high conversion efficiency, ring
Except border is friendly, also with fast, small in size, the electroless liquid loss of starting speed at room temperature, easy draining, service life length, specific power
Outstanding advantages of high with specific energy.Therefore, Proton Exchange Membrane Fuel Cells has boundless application prospect.
Membrane electrode (MEA, Membrane Electrode Assembly) is the core of Proton Exchange Membrane Fuel Cells
Part, membrane electrode are generally made of five parts: the Yin/Yang pole Catalytic Layer and outermost Yin/Yang of intermediate proton exchange membrane, two sides
Pole gas diffusion layers.In battery work, fuel gas (such as: hydrogen) and oxidant (such as: air or oxygen) pass through respectively
Flow field on pole plate enters the electrode reaction area of film two sides, in order to avoid gas leakage or mutually string occur for fuel gas and oxidant,
It needs sealed frame for separating anode and cathode electrode, prevents the mutual string of anode and cathode gas.
But present inventor has found in long-term R&D process, existing sealing technology is easy to be mixed into bubble,
Cause that bezel seal effect is bad, yields is not high, production efficiency is low, is not suitable for automated production.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of encapsulating methods, can simply bubble-free seal, sealing
High-quality, product yield is high, provides technical foundation for automated production.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of encapsulating method is provided, comprising:
First seal and second seal are provided, provided by sealing element；By vacuum action in vacuum platform to far from the vacuum
The direction of platform stacks gradually positioning and places the first seal, is described by sealing element and the second seal, is formed
Three-decker of the inside in vacuum state and bubble-free, the central area that the first seal is located at by sealing element,
The area of the binding domain of the vacuum platform is greater than or equal to the area of the second seal, the face of the second seal
Product is greater than the area of the first seal；Make the first seal and second seal to it is described carried out by sealing element it is close
Envelope.
Wherein, the non-tight scrap area of the first seal is provided with multiple holes；Multiple holes are evenly distributed on described
The non-tight scrap area of first seal.
Wherein, the surrounding of the non-tight scrap area of the first seal is cut multiple areas, the gross area cut
Less than the area of the non-tight scrap area of the first seal.
Wherein, the central area of the first seal and the second seal includes hollow area.
Wherein, described to stack gradually positioning to the direction far from the vacuum platform in vacuum platform by vacuum action and put
It sets the first seal, is described by sealing element and the second seal, being formed and internal be in vacuum state and bubble-free
Three-decker, comprising: by the first seal with substrate downwards, the upward mode of glue surface positions and is placed on the vacuum
On platform, first seal is stated by vacuum suction residence；The first seal is placed on by sealing element positioning by described
Central area is stated by vacuum suction residence by sealing element；The second seal is faced upward with substrate, the side that glue surface is downward
Formula positioning is placed on the first seal adsorbed and described by sealing element, states second by vacuum suction residence
Sealing element forms the internal three-decker in vacuum state and bubble-free.
Wherein, described by sealing element is catalyst coat film.
Wherein, described to be sealed the first seal and second seal by sealing element to described, comprising: to pass through
Heat treatment mode is sealed the first seal and second seal by sealing element to described.
Wherein, the hot melt adhesive group of the first seal and second seal by substrate and setting on the substrate
At.
Wherein, described to carry out the first seal and second seal by sealing element to described by heat treatment mode
Sealing, comprising: compress hot roller press under predetermined pressure and the second predetermined temperature T2 by the three-decker, and then make described
First seal and second seal are sealed to described by sealing element.
Wherein, described to make hot roller press that the three-decker be compressed it under predetermined pressure and the second predetermined temperature T2
Before, comprising: the three-decker is transferred to heating device, by the three-decker pre-glued at the first predetermined temperature T1,
Form the three-decker of one, wherein the T1 is not more than the T2.
Wherein, the heating method of the heating device is one of infrared heating, tunnel type heating or hot pressing heating.
Wherein, the substrate is polyethylene terephthalate, polypropylene, polyethylene protective layer, polyvinyl chloride, poly- carbon
One of acid esters, poly- phthalimide, polytetrafluoroethylene (PTFE), poly- phthalein amine or polyvinyl alcohol, thickness range is 5-100um；The heat
Melten gel is at least one of ethyl vinyl acetate, polyamide, polyolefin, polyester, and thickness range is 5-100um.
Wherein, the method also includes: the three-decker after sealing is carried out to cut processing, with remove it is described first sealing
The non-tight scrap area of part and the second seal.
Wherein, the vacuum suction table is the processing plate for being less than 0.2mm hole with several, or big by air penetrability
Material in 50% is prepared.
The beneficial effects of the present invention are: be in contrast to the prior art, encapsulating method of the invention vacuum platform to
Direction far from vacuum platform stack gradually positioning place first seal (be located at lower layer), by sealing element (being located at middle layer) and
Second seal (is located at upper layer), since the area of the binding domain of vacuum platform is greater than or equal to the area of second seal,
The area of second seal is greater than the area of first seal, this makes under vacuum can be through the first sealing of lower layer
Part adsorbs the second seal on upper layer, and then makes the first seal of stacking placement, by sealing element and second seal
Portion is in vacuum state, and without bubble, after sealing in this way, airtight quality is good, the bad phenomenons such as corrugationless, and product yield is high；
And go the mode of bubble removing easy to operate, technical foundation is provided for automated production.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.Wherein:
Fig. 1 is the flow diagram of one embodiment of encapsulating method of the present invention；
Fig. 2 is the flow diagram of another embodiment of encapsulating method of the present invention；
Fig. 3 is the flow diagram of the another embodiment of encapsulating method of the present invention；
Fig. 4 is the flow diagram of the another embodiment of encapsulating method of the present invention；
Fig. 5 is the decomposition chart of the first sealing frame providing holes of lower layer；
Fig. 6 is the sealing technology flow diagram of the first sealing frame providing holes of lower layer；
Fig. 7 is that the surrounding of the non-tight scrap area of the first sealing frame of lower layer is cut the decomposition texture of multiple areas
Figure；
Fig. 8 is that the surrounding of the non-tight scrap area of the first sealing frame of lower layer is cut the sealing technology stream of multiple areas
Journey schematic diagram.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, rather than whole embodiments.Based on this
Embodiment in application, those of ordinary skill in the art are obtained every other under the premise of not making creative labor
Embodiment shall fall in the protection scope of this application.
It is the flow diagram of one embodiment of encapsulating method of the present invention referring to Fig. 1, Fig. 1, this method comprises:
Step S101: first seal and second seal are provided, provided by sealing element.
In the present embodiment, first seal, second seal and by the material and shape of sealing element without limitation.
Step S102: positioning is stacked gradually to the direction far from vacuum platform in vacuum platform by vacuum action and places the
One sealing element, by sealing element and second seal, form the internal three-decker in vacuum state and bubble-free, sealed
Part is located at the central area of first seal, and the area of the binding domain of vacuum platform is greater than or equal to the face of second seal
Product, the area of second seal are greater than the area of first seal.
Step S103: it is sealed first seal and second seal to by sealing element.
In the present embodiment, sealing means without limitation, can use any existing sealing means.
The embodiment of the present invention stacks gradually positioning to the direction far from vacuum platform in vacuum platform and places first seal
(being located at lower layer), by sealing element (being located at middle layer) and second seal (being located at upper layer), due to the binding domain of vacuum platform
Area be greater than or equal to the area of second seal, the area of second seal is greater than the area of first seal, this makes
The for the second seal on upper layer being adsorbed through the first seal of lower layer under vacuum, and then making that stacking places
One sealing element is in vacuum state inside sealing element and second seal, without bubble, after sealing in this way, and airtight quality
It is good, the bad phenomenons such as corrugationless, product yield height；And go the mode of bubble removing easy to operate, it is provided for automated production
Technical foundation.
The area of second seal be greater than first seal area, specific implementation can there are many, for example, one
In embodiment, the non-tight scrap area of the first seal of lower layer is provided with multiple holes；Multiple holes are evenly distributed on first
The non-tight scrap area of sealing element.The region that non-tight scrap area refers to not in sealing range, can remove.In a tool
Have in application, is catalyst coat film CCM by sealing element；The central area of first seal and second seal includes hollow
The pore size in region, the hole of non-tight scrap area setting at this time is no more than membrane electrode manifold hole.Vacuum action can penetrate
The hole of the first seal of lower layer adsorbs the second seal on upper layer, flattens three-decker, and inside is in vacuum state, nothing
Bubble；And go the speed of bubble removing quick, it can be improved production efficiency.
In another embodiment, the surrounding of the non-tight scrap area of first seal is cut multiple areas, cuts
The gross area is less than the area of the non-tight scrap area of first seal.The area of the second seal on upper layer is greater than the of lower layer
One sealing element, therefore the surrounding of upper layer second seal can be contacted directly with vacuum platform, under vacuum, vacuum platform
Upper layer second seal is adsorbed, three-decker is flattened, inside is in vacuum state, bubble-free.
Wherein, sealing means are sealed by heat treatment mode, i.e., step S103, which specifically may is that, passes through heat treatment mode
It is sealed first seal and second seal to by sealing element.
Specifically, first seal and second seal are made of substrate and setting hot melt adhesive on base material；Hot melt
Glue can melt bonding under heating and realize sealing.
Wherein, substrate is polyethylene terephthalate, polypropylene, polyethylene protective layer, polyvinyl chloride, poly- carbonic acid
One of ester, poly- phthalimide, polytetrafluoroethylene (PTFE), poly- phthalein amine or polyvinyl alcohol, thickness range are 5-100 microns (um), example
Such as: 5um, 30um, 60um, 100um, etc.；Hot melt adhesive be ethyl vinyl acetate, polyamide, polyolefin, in polyester at least
One kind, thickness range are 5-100um, such as: 5um, 30um, 60um, 100um, etc..
Wherein, vacuum suction table is the processing plate for being less than 0.2mm hole with several, or is greater than by air penetrability
50% material is prepared.
It wherein, is catalyst coat film by sealing element；The central area of first seal and second seal includes sky
Heart district domain.That is first seal and second seal is sealed catalyst coat film, first seal and second seal
Hollow area can expose the effective coverage of catalyst coat film.
The film (CCM, Catalyst Coated Membrane) of catalyst coat film, also referred to as catalyst coating or combustion
Expect battery chip, is catalyst/proton exchange that fuel-cell catalyst is prepared coated in proton exchange membrane two sides
Membrane module is the most crucial component of Proton Exchange Membrane Fuel Cells, and to reduction production cost, raising specific power, quickening quotient
Industry process is most important.With it is traditional by catalyst coated prepared by gas diffusion layers (i.e. carbon paper or carbon cloth) surface
Membrane electrode (MEA, Membrane Electrode Assembly) is compared, and CCM has the advantage that 1) catalyst layer ultrathin,
Catalyst efficiency is also greatly improved, so that reducing the carrying capacity of Pt noble metal catalyst (can generally be reduced to 0.4-
0.6mg/cm2Below)；2) proton exchange membrane can ultrathin, improve the sheet conductance of film, but also reduce the dosage of film；3) battery
Activation time is shorter, and electrochemical response is fast etc..
In embodiments of the present invention, catalyst coat film is sealed using first seal and second seal, is obtained
The catalyst coat film sealed to final band, the catalyst coat film with sealing are expanded compared to catalyst coat film area,
And the cost that first seal compares catalyst coat film with the cost of second seal is much lower, subsequent assembly fuel cell
When, it is not necessary to entire catalyst coat film (at high cost) is encapsulated into membrane electrode, first seal and second can be sealed
Part and the region that partly overlaps (cost is much lower) are encapsulated into membrane electrode, in this way, can greatly reduce and be produced into
This；In addition, the catalyst coat film structure with sealing is simple, its continuous production processes possible technology base can be provided for realization
Plinth, and then technical support can be provided for the continuous production processes of entire membrane electrode；If can also using roll-to-roll method
Speed of production is improved, also can be improved product package quality by the way of rolling.
Further, referring to fig. 2, step S102 can specifically include: sub-step S1021, sub-step S1022 and sub-step
Rapid S1023.
Sub-step S1021: by first seal with substrate downwards, the upward mode of glue surface positions and is placed on vacuum platform
On, first seal is lived by vacuum suction.
Sub-step S1022: it will be placed on the central area of first seal by sealing element positioning, quilt is lived by vacuum suction
Sealing element.
Sub-step S1023: second seal is faced upward with substrate, the mode that glue surface is downward is positioned to be placed on and adsorbed
First seal firmly and by sealing element, lives second seal by vacuum suction, is formed and internal is in vacuum state and nothing
The three-decker of bubble.
By the above-mentioned means, can be accurately positioned respectively to first seal, by sealing element and second seal, and go
Bubble removing；In order to accelerate the speed of bubble removing, the non-tight scrap area of first seal can be uniformly arranged multiple holes, or
Person, the surrounding in the non-tight scrap area of first seal cut multiple areas.
Wherein, step S103, specifically may is that makes hot roller press under predetermined pressure and the second predetermined temperature T2 by three layers
Structure compresses, and then is sealed first seal and second seal to by sealing element.
Compared to surface-to-surface hot pressing, melt glue-line again by the way of heat rolling, and in the sealed frame under pressure state,
It can be realized the feature good by sealing element effect sealed around.
Further, referring to Fig. 3, before step S103, even if hot roller press is under predetermined pressure and the second predetermined temperature T2
Before three-decker is compressed, can also include:
Step S104: being transferred to heating device for three-decker, by three-decker pre-glued at the first predetermined temperature T1,
Form the three-decker of one, wherein T1 is not more than T2；Wherein, the heating method of heating device is that infrared heating, tunnel type add
One of heat or hot pressing heating.
Make three-decker pre-glued under the conditions of no pressure by preheating, so that it is kept the state of leaving no air bubbles inside, after convenient
The processing such as continuous transfer and heat rolling.
Certainly, in practical applications, warm-up phase can also directly press three-decker by hot rolling mode, specifically may be used
To be determined according to practical application condition.
Referring to fig. 4, in one embodiment, after step S103, can also include:
Step S105: the three-decker after sealing is carried out to cut processing, to remove first seal and second seal
Non-tight scrap area.
It can be increased and decreased according to the condition and specific requirement of practical application according to each step, it is not limited here.
In a practical application, first seal and second seal are the first sealed frame and the second sealing edge respectively
Frame is CCM by sealing element, is evenly arranged with multiple holes, sealing technology in the non-tight scrap area of the first sealing frame of lower layer
Include the steps that it is above-mentioned complete, in simple terms include material stacking, flattening absorption, heating melt in advance, roller bearing press.
Referring to figs. 5 and 6, Fig. 5 is the decomposition chart of the first sealing frame providing holes of lower layer, and Fig. 6 is the first of lower layer
The sealing technology flow diagram of sealing frame providing holes.
A, by the first sealed frame of lower layer 3 with substrate downwards, the upward mode of glue surface positions and is placed on vacuum suction table 5
On binding domain, starts vacuum pump, the first sealed frame of lower layer 3 is adsorbed.The non-tight scrap area of first sealed frame 3
7 are evenly arranged with multiple holes.
B, catalyst coat film 2 is positioned to the central area for being placed on the first sealed frame of lower layer 3, is lived by vacuum suction
Catalyst coat film 2.
C, the second sealed frame of upper layer 1 is faced upward with substrate, the mode that glue surface is downward is positioned to be placed on and adsorbed
The first sealed frame of lower layer 3 and catalyst coat film 2 on, formed three-decker 6.Three-decker 6 flattens, inner vacuum shape
State, bubble-free.
D, the three-decker 6 adsorbed is transferred to heating device, by being warming up to suitable temperature T1, by three-decker 6
Pre-glued forms integrated three-decker 6.
E, the three-decker 6 of the one of pre-glued is transferred on hot roller press, passes through certain pressure and certain temperature T2
Three-decker 6 is compressed.Preheating temperature T1 is not more than hot pressing temperature T2.
F, it after the integrated three-decker 6 rolled being bonded gas diffusion layers, is put into guillotine and forms, obtain shaping membrane
Electrode 8.
In another practical application, first seal and second seal are the first sealed frame and the second sealing edge respectively
Frame is CCM by sealing element, and the surrounding in the non-tight scrap area of the first sealing frame of lower layer is cut multiple areas, sealing
Technique does not include the steps that heating is melted in advance, in simple terms includes material stacking, flattening absorption, roller bearing pressing.
Referring to figs. 7 and 8, Fig. 7 is that the surrounding of the non-tight scrap area of the first sealing frame of lower layer is cut multiple faces
Long-pending decomposition chart, Fig. 8 are that the surrounding of the non-tight scrap area of the first sealing frame of lower layer is cut the close of multiple areas
Seal process flow diagram.
A, by the first sealed frame of lower layer 3 with substrate downwards, the upward mode of glue surface positions and is placed on vacuum suction table 5
On binding domain, starts vacuum pump, the first sealed frame of lower layer 3 is adsorbed.The non-tight scrap area of first sealed frame 3
7 surrounding is cut multiple areas.
B, catalyst coat film 2 is positioned to the central area for being placed on the first sealed frame of lower layer 3, is lived by vacuum suction
Catalyst coat film 2.
C, the second sealed frame of upper layer 1 is faced upward with substrate, the mode that glue surface is downward is positioned to be placed on and adsorbed
The first sealed frame of lower layer 3 and catalyst coat film 2 on, formed three-decker 6.Three-decker 6 flattens, inner vacuum shape
State, bubble-free.
D, the internal three-decker 6 in vacuum state is transferred on hot roller press, passes through certain pressure and certain temperature
Degree T2 compresses three-decker 6.
E, it after the integrated three-decker 6 rolled being bonded gas diffusion layers, is put into guillotine and forms, obtain shaping membrane
Electrode 8.
Generally speaking, by way of forming vacuum inside the three-decker, the gas that is able to solve in membrane electrode seal process
Bubble problem；Make three-decker pre-glued under the conditions of no pressure by preheating, facilitates subsequent processing；It is compared by the way of heat rolling
Surface-to-surface hot pressing has the characteristics that CCM effect sealed around is good.Using the improved sealed frame technique of the present invention, improve product side
The bad phenomenons such as frame bubble, fold, it is easy to operate, with product yield is high, airtight quality is good, is appropriate for automated production
The advantages of.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (14)
1. a kind of encapsulating method characterized by comprising
First seal and second seal are provided, provided by sealing element；
By vacuum action in vacuum platform to the direction far from the vacuum platform stack gradually positioning place it is described first close
It is sealing, described by sealing element and the second seal, form the internal three-decker in vacuum state and bubble-free, institute
The central area for being located at the first seal by sealing element is stated, the area of the binding domain of the vacuum platform is greater than or equal to
The area of the second seal, the area of the second seal are greater than the area of the first seal；
It is sealed the first seal and second seal by sealing element to described.
2. the method according to claim 1, wherein the non-tight scrap area of the first seal is provided with
Multiple holes；Multiple holes are evenly distributed on the non-tight scrap area of the first seal.
3. the method according to claim 1, wherein the surrounding of the non-tight scrap area of the first seal
Multiple areas are cut, the gross area cut is less than the area of the non-tight scrap area of the first seal.
4. the method according to claim 1, wherein the center of the first seal and the second seal
Region includes hollow area.
5. according to the method described in claim 4, it is characterized in that, it is described by vacuum action in vacuum platform to far from described
The direction of vacuum platform stacks gradually positioning and places the first seal, is described by sealing element and the second seal,
Form the internal three-decker in vacuum state and bubble-free, comprising:
By the first seal with substrate downwards, the upward mode of glue surface position and be placed on the vacuum platform, pass through
State first seal in vacuum suction residence；
By the central area for being placed on the first seal by sealing element positioning, is stated and sealed by vacuum suction residence
Part；
The second seal is faced upward with substrate, the mode that glue surface is downward positions described first for being placed on and having adsorbed
Sealing element and described by sealing element, states second seal by vacuum suction residence, is formed and internal is in vacuum state and nothing
The three-decker of bubble.
6. according to the method described in claim 4, it is characterized in that, described by sealing element is catalyst coat film.
7. the method according to claim 1, wherein described make the first seal and second seal to institute
It states and is sealed by sealing element, comprising:
The first seal and second seal are sealed by sealing element to described by heat treatment mode.
8. the method according to the description of claim 7 is characterized in that the first seal and second seal by substrate and
Hot melt adhesive composition on the substrate is set.
9. according to the method described in claim 8, it is characterized in that, it is described by heat treatment mode make the first seal and
Second seal is sealed to described by sealing element, comprising:
It compresses hot roller press under predetermined pressure and the second predetermined temperature T2 by the three-decker, and then makes described first close
Sealing and second seal are sealed to described by sealing element.
10. according to the method described in claim 9, it is characterized in that, described keep hot roller press predetermined in predetermined pressure and second
Before the three-decker is compressed under temperature T2, comprising:
The three-decker is transferred to heating device, by the three-decker pre-glued at the first predetermined temperature T1, is formed
The three-decker of one, wherein the T1 is not more than the T2.
11. according to the method described in claim 10, it is characterized in that, the heating method of the heating device be infrared heating,
One of tunnel type heating or hot pressing heating.
12. according to the method described in claim 8, it is characterized in that, the substrate is polyethylene terephthalate, poly- third
One in alkene, polyethylene protective layer, polyvinyl chloride, polycarbonate, poly- phthalimide, polytetrafluoroethylene (PTFE), poly- phthalein amine or polyvinyl alcohol
Kind, thickness range is 5-100um；The hot melt adhesive be ethyl vinyl acetate, polyamide, polyolefin, in polyester at least
One kind, thickness range are 5-100um.
13. the method according to claim 1, wherein the method also includes:
Three-decker after sealing is carried out to cut processing, to remove the non-close of the first seal and the second seal
Seal scrap area.
14. the method according to claim 1, wherein the vacuum suction table is that there are several to be less than the hole 0.2mm
The processing plate in hole, or be prepared by the material that air penetrability is greater than 50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910604351.6A CN110311152B (en) | 2019-07-05 | 2019-07-05 | Sealing method |
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|---|---|---|---|
| CN201910604351.6A CN110311152B (en) | 2019-07-05 | 2019-07-05 | Sealing method |
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| CN110311152A true CN110311152A (en) | 2019-10-08 |
| CN110311152B CN110311152B (en) | 2020-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110808391A (en) * | 2019-10-21 | 2020-02-18 | 东莞市魔方新能源科技有限公司 | Preparation method of membrane electrode, membrane electrode and proton exchange membrane fuel cell |
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