CN111799101A - Preparation method of nano-carbon supercapacitor slurry - Google Patents
Preparation method of nano-carbon supercapacitor slurry Download PDFInfo
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- CN111799101A CN111799101A CN202010592487.2A CN202010592487A CN111799101A CN 111799101 A CN111799101 A CN 111799101A CN 202010592487 A CN202010592487 A CN 202010592487A CN 111799101 A CN111799101 A CN 111799101A
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- slurry
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- sodium
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- 239000002002 slurry Substances 0.000 title claims abstract description 46
- 229910021392 nanocarbon Inorganic materials 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 40
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 14
- 239000003990 capacitor Substances 0.000 claims abstract description 11
- 239000011230 binding agent Substances 0.000 claims abstract description 10
- 239000006230 acetylene black Substances 0.000 claims abstract description 7
- 239000002270 dispersing agent Substances 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims abstract description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 9
- 239000008213 purified water Substances 0.000 claims description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 239000012895 dilution Substances 0.000 claims description 6
- 238000010790 dilution Methods 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- 239000003792 electrolyte Substances 0.000 claims description 6
- 238000004898 kneading Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 claims description 3
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 3
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 3
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 3
- 239000002033 PVDF binder Substances 0.000 claims description 3
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 3
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000661 sodium alginate Substances 0.000 claims description 3
- 235000010413 sodium alginate Nutrition 0.000 claims description 3
- 229940005550 sodium alginate Drugs 0.000 claims description 3
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 3
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 3
- BAZAXWOYCMUHIX-UHFFFAOYSA-M sodium perchlorate Chemical compound [Na+].[O-]Cl(=O)(=O)=O BAZAXWOYCMUHIX-UHFFFAOYSA-M 0.000 claims description 3
- 229910001488 sodium perchlorate Inorganic materials 0.000 claims description 3
- XGPOMXSYOKFBHS-UHFFFAOYSA-M sodium;trifluoromethanesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C(F)(F)F XGPOMXSYOKFBHS-UHFFFAOYSA-M 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000010924 continuous production Methods 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 abstract description 3
- 239000011149 active material Substances 0.000 abstract 1
- 238000004146 energy storage Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Carbon And Carbon Compounds (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention discloses a preparation method of nano-carbon supercapacitor slurry, which comprises the following steps: the preparation method comprises the steps of mixing and stirring graphene, acetylene black, a binder and a dispersing agent in a dry powder mode, then adding a dispersing solution, dispersing and stirring to prepare graphene conductive slurry, then adding nano carbon serving as an active material, dispersing and stirring to finally obtain slurry, and then coating, rolling, slitting, winding, injecting liquid and the like to prepare the supercapacitor. The slurry is simple and rapid in preparation method, continuous production is easy to realize, the obtained slurry is good in dispersibility, the pole piece prepared from the slurry has low membrane resistivity, and the prepared super capacitor has high energy density, low direct-current internal resistance and high power density.
Description
Technical Field
The invention relates to the technical field of new energy storage devices, in particular to a preparation method of nano-carbon supercapacitor slurry.
Background
The super capacitor is a novel energy storage device between a traditional capacitor and a rechargeable battery, the capacity of the novel energy storage device can reach hundreds to thousands of methods, slurry is poured into the super capacitor, and the slurry is prepared.
The existing preparation method of the nano-carbon supercapacitor slurry is complex in process, and the prepared slurry is poor in dispersibility, so that the preparation method of the nano-carbon supercapacitor slurry is provided.
Disclosure of Invention
The invention aims to provide a preparation method of nano-carbon supercapacitor slurry, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of nano-carbon supercapacitor slurry comprises the following steps: mixing graphene, acetylene black, a binder and a dispersant, adding the graphene, the acetylene black, the binder and dry dispersant powder into a stirrer, and stirring at a stirring speed of 5-100r/min for 5-600min, wherein the weight percentage content ratio of the graphene dry powder to the acetylene black dry powder to the binder to the dispersant is (50% -65%): (10% -25%) and (1% -10%): (1% -10%);
adding part of deionized water for kneading and stirring: adding deionized water into the pre-mixed material obtained in the step 1) for kneading and stirring, wherein the stirring speed is 5-100r/min, so as to obtain the graphene conductive kneaded material, wherein the viscosity range of the slurry is 30000-100000 mpa.s;
adding purified water for dilution and dispersion: and adding all purified water into the stirring tank for stirring and dispersing, wherein the stirring speed is 10-100r/min, the dispersing speed is 3000r/min, and the stirring and dispersing time is 0-600min, so as to prepare the graphene conductive slurry, wherein the viscosity range of the slurry is 500-1000 mpa.s.
Adding purified water for dilution and dispersion: adding nano carbon into the stirring tank for stirring and dispersing, wherein the stirring speed is 10-100r/min, the dispersing speed is 500-3000r/min, and the stirring and dispersing time is 0-600min, so as to prepare the slurry of the super capacitor, wherein the viscosity range of the slurry is 3000-8000 mpa.s.
Preferably, the binder is one or more of polyvinylidene fluoride, polytetrafluoroethylene, styrene butadiene rubber, sodium carboxymethyl cellulose and sodium alginate.
Preferably, the prepared supercapacitor slurry is subjected to coating, rolling, splitting, winding and liquid injection processes to prepare the supercapacitor, wherein a current collector used is a corrosion aluminum foil, an electrolyte solvent injected into the capacitor comprises one or more of ethylene carbonate, propylene carbonate, Y-butyrolactone, dimethyl carbonate, diethyl carbonate, butylene carbonate, methyl ethyl carbonate and acetonitrile, and a solute in the electrolyte is at least one of sodium perchlorate, sodium hexafluorophosphate, sodium trifluoromethanesulfonate, sodium difluoromethylsulfonylimide, sodium bisoxalato, sodium hexafluoroarsenate, tetraethyl tetrafluoroborate or spiro quaternary ammonium salt.
Compared with the prior art, the invention has the beneficial effects that: the preparation method of the nano-carbon supercapacitor slurry is simple and rapid in slurry preparation method, continuous production is easy to realize, the obtained slurry is good in dispersibility, the pole piece prepared from the slurry has low membrane resistivity, and the prepared supercapacitor has high energy density, low direct-current internal resistance and high power density.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: a preparation method of nano-carbon supercapacitor slurry comprises the following steps: adding part of deionized water for kneading and stirring: adding deionized water into the pre-mixed material obtained in the step 1) for kneading and stirring, wherein the stirring speed is 5-100r/min, so as to obtain the graphene conductive kneaded material, wherein the viscosity range of the slurry is 30000-100000 mpa.s;
adding purified water for dilution and dispersion: and adding all purified water into the stirring tank for stirring and dispersing, wherein the stirring speed is 10-100r/min, the dispersing speed is 3000r/min, and the stirring and dispersing time is 0-600min, so as to prepare the graphene conductive slurry, wherein the viscosity range of the slurry is 500-1000 mpa.s.
Adding purified water for dilution and dispersion: adding nano carbon into the stirring tank for stirring and dispersing, wherein the stirring speed is 10-100r/min, the dispersing speed is 500-3000r/min, and the stirring and dispersing time is 0-600min, so as to prepare the slurry of the super capacitor, wherein the viscosity range of the slurry is 3000-8000 mpa.s.
The binder is one or more of polyvinylidene fluoride, polytetrafluoroethylene, styrene butadiene rubber, sodium carboxymethyl cellulose and sodium alginate;
coating, rolling, slitting, winding and injecting the prepared slurry of the super capacitor to prepare the super capacitor, wherein a current collector used is a corrosion aluminum foil, an electrolyte solvent injected into the capacitor comprises one or more of ethylene carbonate, propylene carbonate, Y-butyrolactone, dimethyl carbonate, diethyl carbonate, butylene carbonate, methyl ethyl carbonate and acetonitrile, and solute in the electrolyte is at least one of sodium perchlorate, sodium hexafluorophosphate, sodium trifluoromethanesulfonate, sodium difluoromethylsulfonylimide, sodium bisoxalato, sodium hexafluoroarsenate and tetraethyl tetrafluoroborate or spiro quaternary ammonium salt;
in conclusion, the preparation method of the nano-carbon supercapacitor slurry is simple and rapid in slurry preparation method, continuous production is easy to realize, the obtained slurry is good in dispersibility, and a pole piece prepared from the slurry has low membrane resistivity.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A preparation method of nano-carbon supercapacitor slurry is characterized by comprising the following steps: mixing graphene, acetylene black, a binder and a dispersant, adding the graphene, the acetylene black, the binder and dry dispersant powder into a stirrer, and stirring at a stirring speed of 5-100r/min for 5-600min, wherein the weight percentage content ratio of the graphene dry powder to the acetylene black dry powder to the binder to the dispersant is (50% -65%): (10% -25%) and (1% -10%): (1% -10%);
adding part of deionized water for kneading and stirring: adding deionized water into the pre-mixed material obtained in the step 1) for kneading and stirring, wherein the stirring speed is 5-100r/min, so as to obtain the graphene conductive kneaded material, wherein the viscosity range of the slurry is 30000-100000 mpa.s;
adding purified water for dilution and dispersion: and adding all purified water into the stirring tank for stirring and dispersing, wherein the stirring speed is 10-100r/min, the dispersing speed is 3000r/min, and the stirring and dispersing time is 0-600min, so as to prepare the graphene conductive slurry, wherein the viscosity range of the slurry is 500-1000 mpa.s.
Adding purified water for dilution and dispersion: adding nano carbon into the stirring tank for stirring and dispersing, wherein the stirring speed is 10-100r/min, the dispersing speed is 500-3000r/min, and the stirring and dispersing time is 0-600min, so as to prepare the slurry of the super capacitor, wherein the viscosity range of the slurry is 3000-8000 mpa.s.
2. The preparation method of the nano-carbon supercapacitor slurry according to claim 1, characterized by comprising the following steps: the binder is one or more of polyvinylidene fluoride, polytetrafluoroethylene, styrene butadiene rubber, sodium carboxymethyl cellulose and sodium alginate.
3. The preparation method of the nano-carbon supercapacitor slurry according to claim 1, characterized by comprising the following steps: the prepared supercapacitor slurry is subjected to coating, rolling, slitting, winding and liquid injection processes to prepare the supercapacitor, wherein a current collector used is a corrosion aluminum foil, an electrolyte solvent injected into the supercapacitor comprises one or more of ethylene carbonate, propylene carbonate, Y-butyrolactone, dimethyl carbonate, diethyl carbonate, butylene carbonate, methyl ethyl carbonate and acetonitrile, and a solute in the electrolyte is at least one of sodium perchlorate, sodium hexafluorophosphate, sodium trifluoromethanesulfonate, sodium difluoromethylsulfonylimide, sodium bisoxalato, sodium hexafluoroarsenate, tetraethyl tetrafluoroborate or spiro quaternary ammonium salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010592487.2A CN111799101A (en) | 2020-06-25 | 2020-06-25 | Preparation method of nano-carbon supercapacitor slurry |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010592487.2A CN111799101A (en) | 2020-06-25 | 2020-06-25 | Preparation method of nano-carbon supercapacitor slurry |
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| Publication Number | Publication Date |
|---|---|
| CN111799101A true CN111799101A (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010592487.2A Pending CN111799101A (en) | 2020-06-25 | 2020-06-25 | Preparation method of nano-carbon supercapacitor slurry |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114361714A (en) * | 2021-12-06 | 2022-04-15 | 惠州市旭然新能源有限公司 | Coating slurry, preparation method thereof, composite porous diaphragm prepared from coating slurry and lithium ion battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102637531A (en) * | 2012-03-20 | 2012-08-15 | 深圳市今朝时代新能源技术有限公司 | Electrode of supercapacitor, preparation method of electrode and preparation method of slurry of electrode |
| CN107680829A (en) * | 2017-08-01 | 2018-02-09 | 南通江海储能技术有限公司 | A kind of super capacitor electrode manufacture method |
| CN110459410A (en) * | 2019-07-24 | 2019-11-15 | 中国科学院山西煤炭化学研究所 | A kind of preparation method of super capacitor slurry and its supercapacitor prepared using super capacitor slurry |
| CN110491685A (en) * | 2019-07-24 | 2019-11-22 | 中国科学院山西煤炭化学研究所 | A kind of graphene method for preparing super capacitor slurry and the graphene supercapacitor prepared using graphene super capacitor slurry |
-
2020
- 2020-06-25 CN CN202010592487.2A patent/CN111799101A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637531A (en) * | 2012-03-20 | 2012-08-15 | 深圳市今朝时代新能源技术有限公司 | Electrode of supercapacitor, preparation method of electrode and preparation method of slurry of electrode |
| CN107680829A (en) * | 2017-08-01 | 2018-02-09 | 南通江海储能技术有限公司 | A kind of super capacitor electrode manufacture method |
| CN110459410A (en) * | 2019-07-24 | 2019-11-15 | 中国科学院山西煤炭化学研究所 | A kind of preparation method of super capacitor slurry and its supercapacitor prepared using super capacitor slurry |
| CN110491685A (en) * | 2019-07-24 | 2019-11-22 | 中国科学院山西煤炭化学研究所 | A kind of graphene method for preparing super capacitor slurry and the graphene supercapacitor prepared using graphene super capacitor slurry |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114361714A (en) * | 2021-12-06 | 2022-04-15 | 惠州市旭然新能源有限公司 | Coating slurry, preparation method thereof, composite porous diaphragm prepared from coating slurry and lithium ion battery |
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Application publication date: 20201020 |
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