CN112713011A - Method for preparing super capacitor with double-conducting network - Google Patents
Method for preparing super capacitor with double-conducting network Download PDFInfo
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- CN112713011A CN112713011A CN202011536112.0A CN202011536112A CN112713011A CN 112713011 A CN112713011 A CN 112713011A CN 202011536112 A CN202011536112 A CN 202011536112A CN 112713011 A CN112713011 A CN 112713011A
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- Prior art keywords
- gly
- solution
- electrolyte
- conductive network
- supercapacitor
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000003990 capacitor Substances 0.000 title abstract description 15
- 239000003792 electrolyte Substances 0.000 claims abstract description 28
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims description 40
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 34
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- 239000011609 ammonium molybdate Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 239000007784 solid electrolyte Substances 0.000 claims description 8
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 claims description 7
- 229940010552 ammonium molybdate Drugs 0.000 claims description 7
- 235000018660 ammonium molybdate Nutrition 0.000 claims description 7
- 239000000178 monomer Substances 0.000 claims description 5
- 238000001291 vacuum drying Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000007832 Na2SO4 Substances 0.000 abstract description 20
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract description 20
- 229920000128 polypyrrole Polymers 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007772 electrode material Substances 0.000 abstract description 3
- 239000011159 matrix material Substances 0.000 abstract description 3
- 235000011152 sodium sulphate Nutrition 0.000 abstract 2
- 238000002156 mixing Methods 0.000 description 8
- 238000001035 drying Methods 0.000 description 5
- 238000004090 dissolution Methods 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000005518 polymer electrolyte Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002001 electrolyte material Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 231100000956 nontoxicity Toxicity 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
- H01G11/84—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)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Abstract
本发明公开了一种具有双导电网络的超级电容制备的方法，本发明首先制备Gly‑Na2SO4‑Mo电解质，接着一体化制备Gly‑Na2SO4‑Mo/Gly‑Mo‑PPy双导电网络超级电容器；本发明具有双导电网络且电解质与电极具有相同基质的Gly‑Na2SO4‑Mo/Gly‑Mo‑PPy柔性超级电容器，Gly‑Na2SO4‑Mo为电解质，Gly‑Mo‑PPy是生长在电解质上的电极材料。亲水性的Gly与聚吡咯嵌入在电极中与电解质一起形成离子导电网络；Mo在电极中与PPy形成电子导电网络，双重导电网络的作用使得超级电容器的性能显著提高。电解质与电极中都存在Gly‑Mo，提高了导电率和超级电容器的性能。The invention discloses a method for preparing a super capacitor with a double conductive network. The invention firstly prepares Gly-Na 2 SO 4 -Mo electrolyte, and then integrates the preparation of Gly-Na 2 SO 4 -Mo/Gly-Mo-PPy double Conductive network supercapacitor; Gly- Na2SO4 -Mo/Gly-Mo-PPy flexible supercapacitor with double conductive network and electrolyte and electrode having the same matrix, Gly - Na2SO4 - Mo is electrolyte, Gly- Mo‑PPy is an electrode material grown on an electrolyte. Hydrophilic Gly and polypyrrole are embedded in the electrode to form an ionic conductive network together with the electrolyte; Mo forms an electronic conductive network with PPy in the electrode, and the effect of the double conductive network significantly improves the performance of the supercapacitor. The presence of Gly‑Mo in both the electrolyte and electrodes improves the conductivity and performance of the supercapacitor.
Description
Technical Field
The invention belongs to the field of energy storage of new materials of super capacitors, and particularly relates to a method for preparing a super capacitor with a double-conducting network.
Background
With the rapid development of wearable and portable electronic devices, their reliability and security have also become a concern. The gel polymer electrolyte has the advantages of no leakage, safety, flexibility, high ionic conductivity and the like, so that the gel polymer electrolyte is widely applied, and the flexible super capacitor is developed on the basis. Efficient charging and discharging of supercapacitors depends on the diffusion of electrolyte ions in the material. The separate design of the electrolyte and the electrode in the traditional super capacitor influences the transmission impedance, the energy density and the like of the super capacitor. In addition, the different resistances of the electrode material and the electrolyte material, as well as the lower ionic and electronic conductivity between the electrolyte and the electrodes, also affect the performance of the supercapacitor. Therefore, the super capacitor with the double-conductive network and the electrolyte and the electrode having the same matrix can effectively improve the performance of the super capacitor. Glycerol (Gly) has mechanical elasticity, no toxicity and environmental friendliness, and has been widely used in many fields.
Disclosure of Invention
Aiming at the problems of improving the ionic conductivity, the energy density and the like of a super capacitor, the invention prepares the Gly-Na with a double-conductive network2SO4-Mo/Gly-Mo-PPy super capacitor.
A method for preparing a super capacitor with a double-conducting network comprises the following steps:
the method comprises the following steps: Gly-Na2SO4Preparation of-Mo electrolyte
(1) Na is added2SO4Added to glycerol Gly, Na2SO4And Gly in a mass ratio of 0.11-0.28: 1, stirring for 3 hours at the temperature of 60 ℃, and obtaining uniform and transparent Gly-Na after full dissolution2SO4And (3) mixing.
(2) After standing and cooling, the mixture is placed in Gly-Na2SO4Adding ammonium molybdate into the mixture, stirring for 3 hours at the temperature of 80 ℃, cooling to obtain a jelly-shaped solution, wherein the mass percent of Mo to Gly is 5-17%, and drying in vacuum to obtain Gly-Na2SO4-a Mo solid-state electrolyte.
Step two: Gly-Na2SO4Integrated preparation of-Mo/Gly-Mo-PPy double-conducting-network supercapacitor
(1) And doping ammonium molybdate into the Gly, wherein the mass percent of Mo and the Gly is 5-17%, stirring for 3 hours at the temperature of 80 ℃, and cooling to obtain a Gly-Mo solution.
(2) Dissolving pyrrole Py monomer in 0.5mol/L H2SO4In the presence of a catalyst to form a solution A, pyrrole and H2SO4In a molar ratio of 0.8 to 1: 1. reacting Gly-Na2SO4-Mo solid electrolyte is put into the A solution.
(3) Dissolving ammonium persulfate in 0.5mol/L H2SO4Wherein the molar ratio of ammonium persulfate to pyrrole in the solution A is 1: 1, H2SO4The molar ratio of the pyrrole to the pyrrole in the solution A is 1: 0.8-1. And pouring a Gly-Mo solution into the solution to obtain a solution B, wherein the mass ratio of ammonium persulfate to the Gly-Mo solution is 1: 6-9.
(4) Pouring the solution B into a container containing Gly-Na2SO4Polymerizing for 10 hours in the solution A of the-Mo solid electrolyte at the temperature of 0-8 ℃, and drying to obtain the solution A with the double-conductive network Gly-Na2SO4-Mo/Gly-Mo-PPy flexible supercapacitor.
Preferably, the Gly-Na2SO4putting-Mo solid electrolyte into A solution, wherein Gly-Na is2SO4The volume ratio of the-Mo solid electrolyte to the A solution is 1: 3-5.
Preferably, the Na is2SO4And Gly in a mass ratio of 0.11: 1.
preferably, the molar ratio of ammonium persulfate to pyrrole is 1: 1
Aiming at the effects of the prior art, the invention comprises the following steps: Gly-Na having a double conductive network and having the same matrix as the electrolyte and the electrodes2SO4-Mo/Gly-Mo-PPy flexible supercapacitor, wherein Gly-Na2SO4-Mo is an electrolyte, Gly-Mo-PPy is an electrode material grown on the electrolyte. Hydrophilic Gly and polypyrrole (PPy) are embedded in the electrode to form an ionic conduction network together with electrolyte; mo and PPy form an electronic conductive network in the electrode, and the performance of the supercapacitor is remarkably improved due to the effect of the double conductive network. In addition, as Gly-Mo exists in the electrolyte and the electrode of the capacitor, the conductivity is effectively improved, and the performance of the super capacitor is further improved.
Detailed Description
For a better understanding of the present invention, reference will now be made to the following examples which are set forth to illustrate, but are not to be construed to limit the present invention.
The first embodiment is as follows: mixing Na2SO4Added to Gly, Na2SO4And Gly in a mass ratio of 0.11: 1, stirring for 3 hours at the temperature of 60 ℃, and obtaining uniform and transparent Gly-Na after full dissolution2SO4And (3) mixing. After standing and cooling, the reaction product is placed in Gly-Na2SO4Ammonium molybdate was added, wherein Mo: Gly (wt.%) was 5%, and then stirred for 3 hours at a temperature of 80 ℃ with an exhaust fan, and cooled to obtain a jelly-like solution. Vacuum drying to remove free water to obtain Gly-Na2SO4-a Mo electrolyte.
Ammonium molybdate was added to 10ml Gly, where Mo: Gly (wt.%) was 5%, followed by stirring for 3 hours at 80 ℃ with a suction fan and cooling to give a Gly-Mo solution. Pyrrole monomer was dissolved in 0.5mol/L H2SO4Forming a solution A, wherein the molar ratio of the solution A to the solution A is 0.8: 1. reacting Gly-Na2SO4-Mo electrolyte is put into the A solution. Ammonium persulfate was dissolved in 0.5mol/L of H2SO4Wherein the molar ratio of ammonium persulfate to pyrrole is 1: 1, H2SO4The molar ratio to pyrrole is 1: 0.8. and pouring a Gly-Mo solution into the solution to form a solution B, wherein the mass ratio of ammonium persulfate to the Gly-Mo solution is 1: 6. pouring the solution B into a container containing Gly-Na2SO4Polymerization was carried out at 8 ℃ for 10 hours in the solution A of the-Mo electrolyte. Then taking out the mixture and drying the mixture to obtain the product with the specific capacitance of 360mF/cm2Integrated Gly-Na with double-conducting network2SO4-Mo/Gly-Mo-PPy flexible supercapacitor.
The second embodiment is as follows: mixing Na2SO4Added to Gly, Na2SO4And Gly in a mass ratio of 0.2: 1, stirring for 3 hours at the temperature of 60 ℃, and obtaining uniform and transparent Gly-Na after full dissolution2SO4And (3) mixing. After standing and cooling, the reaction product is placed in Gly-Na2SO4In the process of mixing ammonium molybdateWherein Mo: Gly (wt.%) is 10%, then stirred for 3 hours at a temperature of 80 ℃ with an aspirator, and cooled to obtain a jelly-like solution. Vacuum drying to remove free water to obtain Gly-Na2SO4-a Mo electrolyte.
Ammonium molybdate was added to 10ml Gly, where Mo: Gly (wt.%) was 10%, followed by stirring for 3 hours at 80 ℃ with a suction fan and cooling to give a Gly-Mo solution. Pyrrole monomer was dissolved in 0.5mol/L H2SO4The molar ratio of the solution A to the solution A is 0.9: 1. reacting Gly-Na2SO4-Mo electrolyte is put into the A solution. Ammonium persulfate was dissolved in 0.5mol/L of H2SO4Wherein the molar ratio of ammonium persulfate to pyrrole is 1: 1, H2SO4The molar ratio to pyrrole is 1: 0.9. and pouring a Gly-Mo solution into the solution to form a solution B, wherein the mass ratio of ammonium persulfate to the Gly-Mo solution is 1: 7.5. pouring the solution B into a container containing Gly-Na2SO4Polymerization was carried out at 4 ℃ for 10 hours in the solution A of the-Mo electrolyte. Then taking out and drying to obtain the product with specific capacitance of 490mF/cm2Integrated Gly-Na with double-conducting network2SO4-Mo/Gly-Mo-PPy flexible supercapacitor.
The third concrete implementation mode: mixing Na2SO4Added to Gly, Na2SO4And Gly in a mass ratio of 0.28: 1, stirring for 3 hours at the temperature of 60 ℃, and obtaining uniform and transparent Gly-Na after full dissolution2SO4And (3) mixing. After standing and cooling, the reaction product is placed in Gly-Na2SO4Ammonium molybdate was added, wherein Mo: Gly (wt.%) was 17%, and then stirred for 3 hours at a temperature of 80 ℃ with an exhaust fan, and cooled to obtain a jelly-like solution. Vacuum drying to remove free water to obtain Gly-Na2SO4-a Mo electrolyte.
Ammonium molybdate was added to 10ml Gly, where Mo: Gly (wt.%) was 17%, followed by stirring for 3 hours at 80 ℃ with a suction fan and cooling to give a Gly-Mo solution. Pyrrole monomer was dissolved in 0.5mol/L H2SO4To form a solution A, and the molar ratio of the solution A to the solution A is 1: 1. reacting Gly-Na2SO4-Mo electrolyte is put into the A solution. Ammonium persulfate was dissolved in 0.5mol/L of H2SO4Wherein the molar ratio of ammonium persulfate to pyrrole is 1: 1, H2SO4The molar ratio to pyrrole is 1: 1. and pouring a Gly-Mo solution into the solution to form a solution B, wherein the mass ratio of ammonium persulfate to the Gly-Mo solution is 1: 9. pouring the solution B into a container containing Gly-Na2SO4Polymerization was carried out at 0 ℃ for 10 hours in the solution A of the-Mo electrolyte. Then taking out the mixture and drying the mixture to obtain the product with the specific capacitance of 630mF/cm2Integrated Gly-Na with double-conducting network2SO4-Mo/Gly-Mo-PPy flexible supercapacitor.
Claims (4)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644273A (en) * | 2021-08-13 | 2021-11-12 | 中科检测技术服务(重庆)有限公司 | Ionic-electronic co-conductive material and preparation method and device thereof |
| CN115249590A (en) * | 2021-12-27 | 2022-10-28 | 沈阳大学 | All-solid-state stretchable supercapacitor based on double-network gel and preparation method thereof |
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| CN101819882A (en) * | 2010-04-19 | 2010-09-01 | 中国科学院长春应用化学研究所 | Electrolyte for super-capacitor and super-capacitor |
| CN106847547A (en) * | 2017-02-09 | 2017-06-13 | 同济大学 | Three-dimensional tubulose molybdenum bisuphide/polypyrrole composite electrode material for super capacitor and its preparation |
| CN109559901A (en) * | 2017-09-25 | 2019-04-02 | 银隆新能源股份有限公司 | Polypyrrole/molybdenum/titania nanotube ternary composite electrode preparation method |
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| KR20200004071A (en) * | 2018-07-03 | 2020-01-13 | 주식회사 엘지화학 | Electrode materials for pseudocapacitor and a method for preparing the same |
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2020
- 2020-12-23 CN CN202011536112.0A patent/CN112713011B/en active Active
Patent Citations (5)
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| CN101819882A (en) * | 2010-04-19 | 2010-09-01 | 中国科学院长春应用化学研究所 | Electrolyte for super-capacitor and super-capacitor |
| CN106847547A (en) * | 2017-02-09 | 2017-06-13 | 同济大学 | Three-dimensional tubulose molybdenum bisuphide/polypyrrole composite electrode material for super capacitor and its preparation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113644273A (en) * | 2021-08-13 | 2021-11-12 | 中科检测技术服务(重庆)有限公司 | Ionic-electronic co-conductive material and preparation method and device thereof |
| CN115249590A (en) * | 2021-12-27 | 2022-10-28 | 沈阳大学 | All-solid-state stretchable supercapacitor based on double-network gel and preparation method thereof |
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