CN106128800A - A kind of preparation method containing composite graphite ene coatings positive plate - Google Patents
A kind of preparation method containing composite graphite ene coatings positive plate Download PDFInfo
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- CN106128800A CN106128800A CN201610619993.XA CN201610619993A CN106128800A CN 106128800 A CN106128800 A CN 106128800A CN 201610619993 A CN201610619993 A CN 201610619993A CN 106128800 A CN106128800 A CN 106128800A
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- lithium
- positive plate
- alcohol radical
- lithium ion
- containing alcohol
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 21
- 239000010439 graphite Substances 0.000 title claims abstract description 21
- 238000000576 coating method Methods 0.000 title claims abstract description 18
- 239000002131 composite material Substances 0.000 title abstract description 3
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 54
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 53
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical group [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 41
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000003990 capacitor Substances 0.000 claims abstract description 32
- 239000011230 binding agent Substances 0.000 claims abstract description 28
- 239000006258 conductive agent Substances 0.000 claims abstract description 28
- 238000001035 drying Methods 0.000 claims abstract description 24
- 239000002002 slurry Substances 0.000 claims abstract description 24
- 238000005516 engineering process Methods 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 239000011149 active material Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 229910052808 lithium carbonate Inorganic materials 0.000 claims abstract description 9
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 7
- 239000003792 electrolyte Substances 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 239000010406 cathode material Substances 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910001290 LiPF6 Inorganic materials 0.000 claims description 7
- 239000005030 aluminium foil Substances 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 7
- 239000011889 copper foil Substances 0.000 claims description 7
- 238000003475 lamination Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 229910021385 hard carbon Inorganic materials 0.000 claims description 4
- 239000010405 anode material Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 13
- 239000000203 mixture Substances 0.000 abstract description 7
- 239000002033 PVDF binder Substances 0.000 description 15
- 239000003273 ketjen black Substances 0.000 description 15
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 15
- 239000003610 charcoal Substances 0.000 description 7
- 239000002250 absorbent Substances 0.000 description 6
- 230000002745 absorbent Effects 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 150000002641 lithium Chemical class 0.000 description 1
- 229910021450 lithium metal oxide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- H01G11/04—Hybrid capacitors
- H01G11/06—Hybrid capacitors with one of the electrodes allowing ions to be reversibly doped thereinto, e.g. lithium ion capacitors [LIC]
-
- 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
-
- 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
- Y02E60/13—Energy storage using capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The present invention provides a kind of preparation method containing composite graphite ene coatings positive plate.Including following step: step (1) is by graphite oxide and Li2CO3Mixing, puts into the Muffle reaction in furnace of gas shield, obtains the grapheme material containing alcohol radical lithium after mix homogeneously；Grapheme material containing alcohol radical lithium, conductive agent, binding agent are proportionally joined in NMP and are mixed into slurry by step (2), are then coated with, containing on active material positive plate, obtaining the Graphene coating positive plate containing alcohol radical lithium after drying.There is advantages that the positive pole that positive plate is lithium ion super capacitor of (1) grapheme material coating containing alcohol radical lithium makes negative pole need not add the pre-embedding lithium technique of lithium sheet or complexity, simplify preparation technology, reduce cost.
Description
Technical field
The invention belongs to lithium ion super capacitor technical field, relate to the system of a kind of lithium ion super capacitor positive plate
Preparation Method.
Background technology
In recent years, lithium rechargeable battery has obtained the biggest development, and this battery cathode generally uses the charcoal elements such as graphite
Material, positive pole uses cobalt acid lithium, LiMn2O4 etc. containing lithium metal oxide.After this set of cells is filled with, during charging, negative pole is to positive pole
Lithium ion is provided, and the lithium ion of positive pole returns negative pole when electric discharge, is therefore referred to as " rocking chair type battery ".With use metal
The lithium battery of lithium is compared, and this battery has high security and the feature of high cycle life.
But, owing to positive electrode is susceptible to the deformation of structure, therefore, lithium ion secondary electricity during removal lithium embedded
The cycle life in pond is still restricted.The most in recent years, body lithium rechargeable battery and double layer capacitor combined
System's research becomes new focus.
The carbon materials such as lithium-ion capacitor general anode material selection graphite, hard carbon, positive electrode selects electric double layer special
The absorbent charcoal material of property, is carried out the pre-doping of lithium ion, makes negative pole current potential significantly decline, thus improve by anticathode material
Energy density.Disclosing a kind of lithium-ion capacitor in patent CN200580001498.2, this lithium-ion capacitor uses
Plus plate current-collecting body and negative current collector are respectively provided with the hole running through positive and negative, respectively by positive active material and negative electrode active material shape
Become electrode layer, carry out electrochemical contact by anticathode, in advance lithium ion is carried in negative pole.Patent
CN200780024069.6 discloses the preprocess method of a kind of electrochemical capacitor negative pole, by vapor phase method or liquid phase
Method forms lithium layer on substrate, and then this lithium layer is transferred to the electrode layer of negative pole.The work that the method for these pre-doping relates to
Skill is more complicated, and needs raw material to carry out special handling, brings certain difficulty to manufacture process.
Summary of the invention
The technical problem to be solved in the present invention is to provide the preparation method of a kind of lithium ion super capacitor positive plate, the party
Positive plate prepared by method can provide lithium source in lithium-ion capacitor, at the pre-embedding lithium carrying out complexity without anticathode again
Manage or in lithium-ion capacitor, add lithium sheet, simplifying technical process prepared by lithium-ion capacitor, reduce its technique
Cost.
The preparation method of the lithium ion super capacitor positive plate that the present invention provides is:
Step (1) is by graphite oxide and Li2CO3The ratio mixing of 50-10:1 in mass ratio, puts into nitrogen protection after mix homogeneously
Muffle furnace in 200-600 DEG C reaction 1-6h, obtain the grapheme material containing alcohol radical lithium.
Step (2) by the grapheme material containing alcohol radical lithium, conductive agent, binding agent according to the matter of 80-90:5-10:5-10
Amount ratio joins and is mixed into slurry in NMP, is then coated with, containing on active material positive plate, obtaining containing alcohol radical after drying
The Graphene coating positive plate of lithium.
Further, graphite oxide and Li in described step (1)2CO3The ratio mixing of 50-10:1 in mass ratio；
Further, the described step (1) reaction temperature in Muffle furnace is 200-600 DEG C, and the response time is 1-6 hour；
Further, in described step (2), the atmosphere in Muffle furnace is nitrogen；
Further, described step (2) is 80-containing the grapheme material of alcohol radical lithium, conductive agent, the mass ratio of binding agent
90:5-10:5-10；
The present invention provides the preparation technology flow process of a kind of lithium ion super capacitor as follows:
(1) activated carbon or graphene anode material, conductive agent, binding agent are joined in NMP mixed according to the ratio of 90:5:5
Synthetic slurry, is then coated with on plus plate current-collecting body aluminium foil, obtains positive plate after drying.
(2) by the grapheme material containing alcohol radical lithium, conductive agent, binding agent according to the mass ratio of 80-90:5-10:5-10
Example joins and is mixed into slurry in NMP, is then coated with, containing on active material positive plate, obtaining containing alcohol radical lithium after drying
Grapheme material coating positive plate.
(3) graphite or carbon cathode material, conductive agent, binding agent firmly are joined in NMP mixed according to the ratio of 90:5:5
Synthetic slurry, is then coated with on negative current collector Copper Foil paper tinsel, obtains negative plate after drying.
(4) according to the preparation technology of usual lithium ion battery by negative plate, barrier film and positive plate group by the way of lamination
Becoming battery core, then inject electrolyte in battery case, the electrolyte of injection is 1mol/L LiPF6DOL-DME solution (DOL
It is 1:1 with the volume ratio of DME), sealing, obtain lithium ion super capacitor.
The lithium ion battery that the technique using positive electrode of the present invention to prepare lithium ion super capacitor is general prepares work
Skill, enormously simplify the preparation technology of lithium ion super capacitor.
The positive plate of the grapheme material coating containing alcohol radical lithium prepared by the present invention is just being used as lithium ion super capacitor
During pole piece, the grapheme material coating containing alcohol radical lithium provides lithium source, and when initial charge, lithium ion abjection alcohol radical lithium is inserted into
In graphite cathode, thus drag down negative pole current potential, therefore negative pole need not use metal lithium sheet or the pre-embedding lithium technique of complexity；
Graphene can also serve as positive electrode active materials at positive pole simultaneously, improves the capacity of positive pole.
There is advantages that (1) positive plate of grapheme material coating containing alcohol radical lithium is lithium ion
The positive pole of ultracapacitor makes negative pole need not add the pre-embedding lithium technique of lithium sheet or complexity, simplifies preparation technology, fall
Low cost.
Accompanying drawing explanation
Fig. 1 is lithium ion super capacitor positive plate structural representation of the present invention.
In figure, 1 collector, 2 active material positive plates, the 3 grapheme material coating positive plates containing alcohol radical lithium.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the preferably embodiment of the present invention is described in further detail:
Embodiment 1
(1) by graphite oxide and Li2CO3The ratio mixing of 50:1 in mass ratio, puts into the Muffle of nitrogen protection after mix homogeneously
In stove, 200 DEG C of reaction 6h, obtain the grapheme material containing alcohol radical lithium.
(2) absorbent charcoal material, conductive agent Ketjen black, binding agent PVDF are joined according to the ratio of mass ratio 90:5:5
NMP is mixed into slurry, is then coated with on plus plate current-collecting body 1 aluminium foil, after drying, obtains positive plate.
(3) by the grapheme material containing alcohol radical lithium, conductive agent Ketjen black, binding agent PVDF according to mass ratio 80:10:
The ratio of 10 joins and is mixed into slurry in NMP, is then coated with, containing on active material positive plate, obtaining containing alcohol after drying
The grapheme material coating positive plate 3 of base lithium.
(4) graphite cathode material, conductive agent Ketjen black, binding agent PVDF are joined according to the ratio of mass ratio 90:5:5
NMP is mixed into slurry, is then coated with on negative current collector Copper Foil paper tinsel, after drying, obtains negative plate.
(5) according to the preparation technology of usual lithium ion battery by negative plate, barrier film and positive plate group by the way of lamination
Becoming battery core, then inject electrolyte in battery case, the electrolyte of injection is 1mol/L LiPF6DOL-DME solution (DOL
It is 1:1 with the volume ratio of DME), sealing, obtain lithium ion super capacitor.
Embodiment 2
(1) by graphite oxide and Li2CO3The ratio mixing of 10:1 in mass ratio, puts into the Muffle of nitrogen protection after mix homogeneously
In stove, 600 DEG C of reaction 1h, obtain the grapheme material containing alcohol radical lithium.
(2) absorbent charcoal material, conductive agent Ketjen black, binding agent PVDF are joined according to the ratio of mass ratio 90:5:5
NMP is mixed into slurry, is then coated with on plus plate current-collecting body 1 aluminium foil, after drying, obtains positive plate.
(3) by the grapheme material containing alcohol radical lithium, conductive agent Ketjen black, binding agent PVDF according to the mass ratio of 90:5:5
Example joins and is mixed into slurry in NMP, is then coated with, containing on active material positive plate 2, obtaining containing alcohol radical lithium after drying
Grapheme material coating positive plate 3.
(4) hard carbon cathode material, conductive agent Ketjen black, binding agent PVDF are joined according to the ratio of mass ratio 90:5:5
NMP is mixed into slurry, is then coated with on negative current collector Copper Foil paper tinsel, after drying, obtains negative plate.
(5) according to the preparation technology of usual lithium ion battery by negative plate, barrier film and positive plate group by the way of lamination
Becoming battery core, then inject electrolyte in battery case, the electrolyte of injection is 1mol/L LiPF6DOL-DME solution (DOL
It is 1:1 with the volume ratio of DME), sealing, obtain lithium ion super capacitor.
Embodiment 3
(1) by graphite oxide and Li2CO3The ratio mixing of 20:1 in mass ratio, puts into the Muffle of nitrogen protection after mix homogeneously
In stove, 300 DEG C of reaction 5h, obtain the grapheme material containing alcohol radical lithium.
(2) absorbent charcoal material, conductive agent Ketjen black, binding agent PVDF are joined according to the ratio of mass ratio 90:5:5
NMP is mixed into slurry, is then coated with on plus plate current-collecting body 1 aluminium foil, after drying, obtains positive plate.
(3) by the grapheme material containing alcohol radical lithium, conductive agent Ketjen black, binding agent PVDF according to the mass ratio of 85:7:8
Example joins and is mixed into slurry in NMP, is then coated with, containing on active material positive plate 2, obtaining containing alcohol radical lithium after drying
Grapheme material coating positive plate 3.
(4) graphite cathode material, conductive agent Ketjen black, binding agent PVDF are joined according to the ratio of mass ratio 90:5:5
NMP is mixed into slurry, is then coated with on negative current collector Copper Foil paper tinsel, after drying, obtains negative plate.
(5) according to the preparation technology of usual lithium ion battery by negative plate, barrier film and positive plate group by the way of lamination
Becoming battery core, then inject electrolyte in battery case, the electrolyte of injection is 1mol/L LiPF6DOL-DME solution (DOL
It is 1:1 with the volume ratio of DME), sealing, obtain lithium ion super capacitor.
Embodiment 4
(1) by graphite oxide and Li2CO3The ratio mixing of 30:1 in mass ratio, puts into the Muffle of nitrogen protection after mix homogeneously
In stove, 400 DEG C of reaction 2h, obtain the grapheme material containing alcohol radical lithium.
(2) absorbent charcoal material, conductive agent Ketjen black, binding agent PVDF are joined according to the ratio of mass ratio 90:5:5
NMP is mixed into slurry, is then coated with on plus plate current-collecting body 1 aluminium foil, after drying, obtains positive plate.
(3) by the grapheme material containing alcohol radical lithium, conductive agent Ketjen black, binding agent PVDF according to mass ratio 82:9:9's
Mass ratio joins and is mixed into slurry in NMP, is then coated with, containing on active material positive plate 2, being contained after drying
The grapheme material coating positive plate 3 of alcohol radical lithium.
(4) hard carbon cathode material, conductive agent Ketjen black, binding agent PVDF are joined according to the ratio of mass ratio 90:5:5
NMP is mixed into slurry, is then coated with on negative current collector Copper Foil paper tinsel, after drying, obtains negative plate.
(5) according to the preparation technology of usual lithium ion battery by negative plate, barrier film and positive plate group by the way of lamination
Becoming battery core, then inject electrolyte in battery case, the electrolyte of injection is 1mol/L LiPF6DOL-DME solution (DOL
It is 1:1 with the volume ratio of DME), sealing, obtain lithium ion super capacitor.
Embodiment 5
(1) by graphite oxide and Li2CO3The ratio mixing of 40:1 in mass ratio, puts into the Muffle of nitrogen protection after mix homogeneously
In stove, 500 DEG C of reaction 4h, obtain the grapheme material containing alcohol radical lithium.
(2) absorbent charcoal material, conductive agent Ketjen black, binding agent PVDF are joined according to the ratio of mass ratio 90:5:5
NMP is mixed into slurry, is then coated with on plus plate current-collecting body 1 aluminium foil, after drying, obtains positive plate.
(3) by the grapheme material containing alcohol radical lithium, conductive agent Ketjen black, binding agent PVDF according to the mass ratio of 88:6:6
Example joins and is mixed into slurry in NMP, is then coated with, containing on active material positive plate 2, obtaining containing alcohol radical lithium after drying
Grapheme material coating positive plate 3.
(4) graphite cathode material, conductive agent Ketjen black, binding agent PVDF are joined according to the ratio of mass ratio 90:5:5
NMP is mixed into slurry, is then coated with on negative current collector Copper Foil paper tinsel, after drying, obtains negative plate.
(5) according to the preparation technology of usual lithium ion battery by negative plate, barrier film and positive plate group by the way of lamination
Becoming battery core, then inject electrolyte in battery case, the electrolyte of injection is 1mol/L LiPF6DOL-DME solution (DOL
It is 1:1 with the volume ratio of DME), sealing, obtain lithium ion super capacitor.
Its effect is as shown in table 1, as shown in Table 1: lithium ion super capacitor energy density prepared by the present invention reaches
44.8-47.1 wh/kg, has reached the fluence level of conventional lithium ion super capacitor.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Energy density (wh/kg) | 45.2 | 46.4 | 47.1 | 44.8 | 46 |
Above content is to combine concrete preferred implementation further description made for the present invention, it is impossible to assert this
Bright being embodied as is confined to these explanations.For general technical staff of the technical field of the invention, do not taking off
On the premise of present inventive concept, it is also possible to make some simple deduction or replace, all should be considered as belonging to the protection of the present invention
Scope.
Claims (8)
1. the preparation method of a lithium ion super capacitor positive plate, it is characterised in that include following step:
Step (1) is by graphite oxide and Li2CO3Mixing, puts into the Muffle reaction in furnace of gas shield, is contained after mix homogeneously
There is the grapheme material of alcohol radical lithium；
Grapheme material containing alcohol radical lithium, conductive agent, binding agent are joined and are mixed into slurry in NMP by step (2), are then coated with
Overlay on containing on active material positive plate, after drying, obtain the Graphene coating positive plate containing alcohol radical lithium.
2. the preparation method of a lithium ion super capacitor positive plate, it is characterised in that in described step (1) graphite oxide and
Li2CO3The ratio mixing of 50-10:1 in mass ratio.
3. the preparation method of a lithium ion super capacitor positive plate, it is characterised in that described step (1) is in Muffle furnace
Reaction temperature is 200-600 DEG C, and the response time is 1-6 hour.
4. the preparation method of a lithium ion super capacitor positive plate, it is characterised in that in described step (2) in Muffle furnace
Atmosphere is nitrogen.
5. the preparation technology of a lithium ion super capacitor, it is characterised in that include following step:
Step A: activated carbon or graphene anode material, conductive agent, binding agent are joined and be mixed into slurry in NMP, then
It is coated on plus plate current-collecting body aluminium foil, after drying, obtains positive plate;
Step B: the grapheme material containing alcohol radical lithium, conductive agent, binding agent are joined and be mixed into slurry in NMP, is then coated with
Overlay on containing on active material positive plate, after drying, obtain the grapheme material coating positive plate containing alcohol radical lithium;
Step C: graphite or carbon cathode material, conductive agent, binding agent firmly are joined and is mixed into slurry in NMP, is then coated with
On negative current collector Copper Foil paper tinsel, after drying, obtain negative plate;
Step D: negative plate, barrier film and positive plate are formed by the way of lamination according to the preparation technology of usual lithium ion battery
Battery core, then injects electrolyte, sealing in battery case, obtains lithium ion super capacitor.
6. preparation technology as claimed in claim 5, it is characterised in that in described step A, activated carbon or Graphene positive pole material
Material, conductive agent, binding agent mass ratio 90:5:5；In described step C, graphite or hard carbon cathode material, conductive agent, binding agent matter
Amount compares 90:5:5.
7. preparation technology as claimed in claim 5, it is characterised in that in described step B and step (2), containing alcohol radical lithium
Grapheme material, conductive agent, binding agent are according to mass ratio 80-90:5-10:5-10.
8. preparation technology as claimed in claim 5, it is characterised in that in described step C, described electrolyte is 1mol/L
LiPF6DOL-DME solution, wherein, the volume ratio of DOL and DME is 1:1.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637844A (en) * | 2018-11-27 | 2019-04-16 | 中国电子科技集团公司第十八研究所 | Preparation method of positive electrode composite material for lithium ion capacitor |
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2016
- 2016-07-31 CN CN201610619993.XA patent/CN106128800A/en active Pending
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| CN101165827A (en) * | 2007-08-29 | 2008-04-23 | 李青海 | Mixed electrochemical capacitor and its manufacture method |
| WO2012043398A1 (en) * | 2010-09-29 | 2012-04-05 | エスペック株式会社 | Method for drying electrode pair, method for manufacturing lithium-ion secondary battery, method for manufacturing electric double-layer capacitor, and method for manufacturing lithium-ion capacitor |
| CN102760861A (en) * | 2011-04-26 | 2012-10-31 | 海洋王照明科技股份有限公司 | Boron-substituted graphene oxide electrode and preparation method thereof |
| CN103117390A (en) * | 2011-11-17 | 2013-05-22 | 海洋王照明科技股份有限公司 | Graphene oxide derivative lithium salt, and preparation method and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109637844A (en) * | 2018-11-27 | 2019-04-16 | 中国电子科技集团公司第十八研究所 | Preparation method of positive electrode composite material for lithium ion capacitor |
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