CN108199007A - A kind of preparation method of graphene pole piece - Google Patents
A kind of preparation method of graphene pole piece Download PDFInfo
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- CN108199007A CN108199007A CN201711463817.2A CN201711463817A CN108199007A CN 108199007 A CN108199007 A CN 108199007A CN 201711463817 A CN201711463817 A CN 201711463817A CN 108199007 A CN108199007 A CN 108199007A
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- graphene
- layer
- glue
- pole piece
- laser
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 90
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000003292 glue Substances 0.000 claims abstract description 82
- 239000000758 substrate Substances 0.000 claims abstract description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052802 copper Inorganic materials 0.000 claims abstract description 18
- 239000010949 copper Substances 0.000 claims abstract description 18
- 150000001336 alkenes Chemical class 0.000 claims abstract description 8
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000011230 binding agent Substances 0.000 abstract description 8
- 229910002804 graphite Inorganic materials 0.000 abstract description 5
- 239000010439 graphite Substances 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 88
- 239000011889 copper foil Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- -1 graphite Alkene Chemical class 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Classifications
-
- 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
- H01M4/1393—Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/50—Electrodes characterised by their material specially adapted for lithium-ion capacitors, e.g. for lithium-doping or for intercalation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Carbon And Carbon Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a kind of preparation method of graphene pole piece, including step 1：The glue being attached on substrate is cut in the upper surface even application glue and use laser of smooth substrate, so that substrate adheres to the glue layer that a layer thickness is 0.3 ~ 0.5 μm；Step 2：The graphene being attached on glue layer upper surface is cut in the upper surface graphite spraying alkene and use laser of glue layer, so that the graphene layer that a layer thickness is 0.1 μm is adhered in glue layer upper surface；Step 3：Lug with the upper surface of graphene layer is close to and one layer of layers of copper is electroplated, lug is fixed on the upper surface of graphene layer；And laser is used to be cut thickness to control layers of copper to layers of copper as 0.3 ~ 0.5 μm；Step 4：Partial cut is carried out to glue layer using laser, graphene pole piece is obtained to remove substrate, the thickness of the glue layer after cutting is 0 ~ 0.1 μm.The present invention just can make lug be connected with graphene layer without binding agent, and also ensure that the graphene layer thickness in graphene pole piece is uniform.
Description
Technical field
The present invention relates to pole pieces, particularly relate to a kind of preparation method of graphene pole piece.
Background technology
Since strong K seas nurse (AndreK.Geim) of the peace moral of Univ Manchester UK etc. prepared stone in 2004
Black alkene material, since its unique structure and photoelectric property receive people and widely pay attention to.Mono-layer graphite is due to its big ratio
Surface area, excellent conduction, heat conductivility and low coefficient of thermal expansion and be considered as ideal material.Graphene not only has
Higher embedding lithium capacity (theoretical capacity：~700mAh/g, actual capacity：400~500mAh/g), and charge-discharge performance
It is very good.It can be used as negative electrode material in lithium-ion capacitor and lithium ion battery.
But it is usually to be made after binding agent mixing is added in after graphene is ground first that tradition, which prepares graphene pole piece, at present
Into uniform sizing material；Then slurry is uniformly coated copper foil（That is lug）On, and dry a period of time forms half under high temperature environment
Semi-finished product are finally carried out compacting and form pole piece finished product by finished product；But this preparation method is in practice at present, slurry
When material is coated on copper foil, it is difficult to ensure that the surfacing coated in the slurry on copper foil so that coated in the slurry on copper foil
Thickness be extremely difficult to uniformly, therefore it is easy to appear density unevennesses for the graphene inside the pole piece finished product formed in last compacting
Even situation and the performance for influencing pole piece, and graphene be and binding agent mixing after could be coated on copper foil, be blended in stone
Binding agent in black alkene can also affect the performance of pole piece.
Invention content
The purpose of the present invention is to provide a kind of preparation methods of graphene pole piece, just can make lug and stone without binding agent
Black alkene is connected, and can guarantee that the thickness of graphene is uniform.
In order to achieve the above objectives, solution of the invention is：
A kind of preparation method of graphene pole piece, includes the following steps：
Step 1：Smooth substrate one layer of glue of upper surface even application and using laser to being attached on substrate
Glue is cut, so that upper surface of base plate is attached with the glue layer that a layer thickness is 0.3 ~ 0.5 μm；
Step 2：A layer graphene is sprayed in the upper surface of glue layer and using laser to the stone that is attached on glue layer upper surface
Black alkene is cut, so that glue layer upper surface is attached with the graphene layer that a layer thickness is 0.1 μm；
Step 3：Lug with the upper surface of graphene layer is close to and one layer of layers of copper is electroplated, lug is fixed on graphene layer
Upper surface on；And laser is used to be cut thickness to control layers of copper to layers of copper as 0.3 ~ 0.5 μm；
Step 4：Partial cut is carried out to glue layer using laser, graphene pole piece is obtained to remove substrate, after cutting
The thickness of glue layer is 0 ~ 0.1 μm.
It is further included in the step 1：While laser cuts the glue being attached on substrate, air blower is used
The glue clast that laser is cut and generated to the glue being attached on substrate is blown off.
It is further included in the step 2：The graphene being attached on glue layer upper surface is carried out cutting it using laser
Before, glue layer is pressed with the graphene being attached on glue layer upper surface.
It is further included in the step 2：The graphene being attached on glue layer upper surface is cut in laser same
When, the graphene dust that laser cuts the graphene for being attached to glue layer upper surface and generates is detached with exhaust fan.
It is described Step 1: Step 2: the operating environment of step 3 and step 4 be dustfree environment.
The substrate is glass-fiber-plate.
The thickness of glue layer in the step 1 is 0.4 μm.
The thickness of the layers of copper is 0.4 μm.
The glue is PVDF80.
After using the above scheme, the present invention has the following advantages：
The present invention is that the glue being attached on substrate is carried out being cut to glue layer using laser first, can guarantee glue layer
Upper surface it is smooth, secondly the upper surface of glue layer spray a layer graphene and using laser to being attached to the upper of glue layer
Graphene on surface carries out being cut to graphene layer, can guarantee graphene layer lower surface and upper surface it is smooth；It connects
It is that one layer of layers of copper is electroplated in the upper surface of graphene layer so that lug is fixed on graphene layer, will not without binding agent
The smooth of graphene layer upper surface is destroyed, is finally that partial cut is carried out to glue layer using laser, to remove substrate and part
Glue layer and obtain graphene pole piece, the smooth of graphene layer lower surface will not be destroyed；Therefore the present invention just can without binding agent
Lug is made to be connected with graphene layer, and also ensure graphene layer upper and lower surface it is smooth, so as to ensure graphite
Graphene layer thickness in alkene pole piece is uniform.
Description of the drawings
Fig. 1 is the structure diagram of the graphene pole piece of the present invention；
Fig. 2 is the flow diagram of the present invention.
Specific embodiment
Present invention is disclosed a kind of preparation method of graphene pole piece, including Step 1: Step 2: step 3 and step
Four.
Coordinate shown in Fig. 1 and Fig. 2, specifically, the step 1 includes：It is uniform in the upper surface of smooth substrate 1
One layer of glue of spraying simultaneously cuts the glue adhered on substrate 1 using laser, so that 1 upper surface of substrate is attached with one layer
Thickness is 0.3 ~ 0.5 μm of glue layer 2.Wherein while laser cuts the glue adhered on substrate 1, air blast is used
Machine blows off the glue clast that laser is cut and generated to the glue adhered on substrate 1, is formed to avoid glue clast
Impurity and subsequent step is interfered, the invention is not limited in the glue clast using air blower removal glue layer 2 surface,
The present invention can also use other modes, as long as the glue clast on 2 surface of glue layer can be removed.And the substrate 1
Can be glass-fiber-plate to play high temperature resistant and insulating effect, the glue can be PVDF80 so as to subsequently firm attachment graphite
Alkene；The thickness of the glue layer 2 of step 1 is preferably 0.4 μm.
The step 2 includes：A layer graphene is sprayed in the upper surface of glue layer 2 and using laser to being attached to glue
Graphene on 2 upper surface of layer is cut, so that the graphene layer 3 that a layer thickness is 0.1 μm is adhered in 2 upper surface of glue layer.
It, can be by glue layer 2 and attachment wherein before being cut using laser to the graphene being attached on 2 upper surface of glue layer
Graphene on 2 upper surface of glue layer is pressed, so that glue layer 2 and graphene bonding are secured；In laser to attachment
While graphene in 2 upper surface of glue layer is cut, can with exhaust fan laser to being attached to 2 upper surface of glue layer
The graphene graphene dust that is cut and generated detach, to avoid graphene dust forms impurity and to influencing follow-up step
Suddenly, the invention is not limited in exhaust fan detaches graphene dust, the present invention can also use other modes, as long as can be stone
The graphene dust removal on black 3 surface of alkene layer.
The step 3 includes：Lug 4 with the upper surface of graphene layer 3 is close to and one layer of layers of copper 5 is electroplated, with lug
4 are fixed on the upper surface of graphene layer 3；And use laser layers of copper 5 is cut using control the thickness of layers of copper 5 as 0.3 ~
0.5μm.Preferably, the thickness of the layers of copper 5 is 0.4 μm, and the lug 4 is a copper sheet.
The step 4 includes：Partial cut is carried out to glue layer 2 using laser, to remove substrate 1 so as to obtain graphite
Alkene pole piece A, the thickness of the glue layer 2 after cutting is 0 ~ 0.1 μm.
For above-mentioned step one, Step 2: the operating environment of step 3 and step 4 requires as dustfree environment to keep away
Exempt from the interference of impurity, above-mentioned steps one, Step 2: the laser of step 3 and step 4 can be by a wavelength and power adjustable
Laser B is generated by being directed to the required material cut to adjust wavelength and power.
The present invention has the following advantages：
The present invention is that the glue adhered on substrate 1 is carried out being cut to glue layer 2 using laser first, can guarantee glue
Layer 2 upper surface it is smooth, secondly the upper surface of glue layer 2 spray a layer graphene and using laser to being attached to glue layer
Graphene on 2 upper surface carries out being cut to graphene layer 3, can guarantee the lower surface and upper surface of graphene layer 3
It is smooth；One layer of layers of copper 5 is electroplated so that lug 4 is fixed on graphene layer 3 followed by the upper surface of graphene layer 3, without viscous
Agent is tied, the smooth of 3 upper surface of graphene layer will not be destroyed, is finally that partial cut is carried out to glue layer 2 using laser, to go
Graphene pole piece A is obtained except substrate 1 and part glue layer 2, the smooth of 3 lower surface of graphene layer will not be destroyed；Therefore this hair
It is bright just lug 4 to be made to be connected with graphene layer 3 without binding agent, and also ensure the upper and lower surface of graphene layer 3
It is smooth, so as to ensure that 3 thickness of graphene layer in graphene pole piece A is uniform.
The product form and style of above-described embodiment and schema and the non-limiting present invention, any technical field it is common
The appropriate variation or modification that technical staff does it all should be regarded as not departing from the patent category of the present invention.
Claims (9)
1. a kind of preparation method of graphene pole piece, it is characterised in that：Include the following steps：
Step 1：Smooth substrate one layer of glue of upper surface even application and using laser to being attached on substrate
Glue is cut, so that upper surface of base plate is attached with the glue layer that a layer thickness is 0.3 ~ 0.5 μm；
Step 2：A layer graphene is sprayed in the upper surface of glue layer and using laser to the stone that is attached on glue layer upper surface
Black alkene is cut, so that glue layer upper surface is attached with the graphene layer that a layer thickness is 0.1 μm；
Step 3：Lug with the upper surface of graphene layer is close to and one layer of layers of copper is electroplated, lug is fixed on graphene layer
Upper surface on；And laser is used to be cut thickness to control layers of copper to layers of copper as 0.3 ~ 0.5 μm；
Step 4：Partial cut is carried out to glue layer using laser, graphene pole piece is obtained to remove substrate, after cutting
The thickness of glue layer is 0 ~ 0.1 μm.
2. a kind of preparation method of graphene pole piece as described in claim 1, it is characterised in that：It is also wrapped in the step 1
It includes：While laser cuts the glue being attached on substrate, with air blower laser to the glue that is attached on substrate
The glue clast that water is cut and generated blows off.
3. a kind of preparation method of graphene pole piece as described in claim 1, it is characterised in that：It is also wrapped in the step 2
It includes：Before being cut using laser to the graphene being attached on glue layer upper surface, by glue layer and it is attached to glue
Graphene on layer upper surface is pressed.
4. a kind of preparation method of graphene pole piece as described in claim 1, it is characterised in that：It is also wrapped in the step 2
It includes：While laser cuts the graphene being attached on glue layer upper surface, with exhaust fan laser to being attached to
The graphene dust that the graphene of glue layer upper surface is cut and generated detaches.
5. such as a kind of preparation method of graphene pole piece of claim 1 to 1 any one of them, it is characterised in that：The step
First, Step 2: the operating environment of step 3 and step 4 is dustfree environment.
6. a kind of preparation method of graphene pole piece as described in claim 1, it is characterised in that：The substrate is glass-fiber-plate.
7. a kind of preparation method of graphene pole piece as described in claim 1, it is characterised in that：Glue in the step 1
The thickness of layer is 0.4 μm.
8. a kind of preparation method of graphene pole piece as described in claim 1, it is characterised in that：The thickness of the layers of copper is
0.4μm。
9. a kind of preparation method of graphene pole piece as described in claim 1, it is characterised in that：The glue is PVDF80.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463817.2A CN108199007B (en) | 2017-12-28 | 2017-12-28 | Preparation method of graphene pole piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463817.2A CN108199007B (en) | 2017-12-28 | 2017-12-28 | Preparation method of graphene pole piece |
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| Publication Number | Publication Date |
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| CN108199007A true CN108199007A (en) | 2018-06-22 |
| CN108199007B CN108199007B (en) | 2020-04-07 |
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| CN201711463817.2A Active CN108199007B (en) | 2017-12-28 | 2017-12-28 | Preparation method of graphene pole piece |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110123776A1 (en) * | 2009-11-13 | 2011-05-26 | Samsung Electronics Co., Ltd. | Graphene laminate and method of preparing the same |
| US20150314579A1 (en) * | 2013-01-11 | 2015-11-05 | Seoul National University R&Db Foundation | Transferring method of graphene using self-adhesive film |
| CN105355839A (en) * | 2015-10-15 | 2016-02-24 | 浙江大学 | Graphene-gold composite electrode and preparation method and application thereof |
-
2017
- 2017-12-28 CN CN201711463817.2A patent/CN108199007B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110123776A1 (en) * | 2009-11-13 | 2011-05-26 | Samsung Electronics Co., Ltd. | Graphene laminate and method of preparing the same |
| US20150314579A1 (en) * | 2013-01-11 | 2015-11-05 | Seoul National University R&Db Foundation | Transferring method of graphene using self-adhesive film |
| CN105355839A (en) * | 2015-10-15 | 2016-02-24 | 浙江大学 | Graphene-gold composite electrode and preparation method and application thereof |
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| Publication number | Publication date |
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| CN108199007B (en) | 2020-04-07 |
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