CN108630455A - A method of using tri- imidazole radicals benzene of 1,3,5- ultracapacitor is prepared for carbon source - Google Patents
A method of using tri- imidazole radicals benzene of 1,3,5- ultracapacitor is prepared for carbon source Download PDFInfo
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- CN108630455A CN108630455A CN201810519014.2A CN201810519014A CN108630455A CN 108630455 A CN108630455 A CN 108630455A CN 201810519014 A CN201810519014 A CN 201810519014A CN 108630455 A CN108630455 A CN 108630455A
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- ultracapacitor
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- imidazole radicals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
- H01G11/44—Raw materials therefor, e.g. resins or coal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
- H01G11/34—Carbon-based characterised by carbonisation or activation of carbon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
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- 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
Abstract
The present invention discloses a kind of method for utilizing 1,3,5 three imidazole radicals benzene to prepare ultracapacitor for carbon source, includes the following steps：(1) 1,3,5 three imidazole radicals benzene is placed in high temperature furnace, in argon gas or nitrogen atmosphere of inert gases, it is per minute with 5 DEG C of the rate of heat addition from room temperature to 500 800 DEG C, 1 3h of constant temperature, then room temperature is naturally cooled to get the special TIB activated carbons of ultracapacitor；(2) electrode material is processed into as raw material components using special TIB activated carbons made from 1 10wt% polytetrafluoroethylene (PTFE), 5 20wt% acetylene carbon blacks and 70 94wt% steps (1), then assembles to obtain ultracapacitor using the electrode material.Capacitance >=100Fg of the ultracapacitor‑1, after 5000 circle cycles, the initial value of capacitance >=90%.Low, difficult defect that is quantitative, having pollution that the present invention overcomes original direct doping Nitrogen element raw material technology nitrogen utilization rates, be have nitrogen it is quantitative, all of, free of contamination friendly process.
Description
Technical field
The present invention relates to field of new energy technologies, and in particular to ultracapacitor is more specifically to be related to a kind of profit
It is the method that new carbon source prepares ultracapacitor with tri- imidazole radicals benzene of 1,3,5-.
Background technology
For ultracapacitor as a kind of novel energy storage apparatus, application field includes electric vehicle, fuel combination automobile, special
Truck, electric power, railway, communication, national defence, consumer electrical product etc. have huge application value and market potential.According to
Statistics, the market capacity annual growth rate of ultracapacitor has been more than 40%.
Ultracapacitor has super charge storage ability as a kind of novel energy storage apparatus.Compared with traditional battery, it has
There are high reversible, overlong service life, output, input power super large to have the characteristics that very wide voltage range and operating temperature range.
And compared with traditional electrolyte capacitors, its energy density is thousands of times high, and the small several orders of magnitude of leakage current.It has had both electricity
The high-energy storage characteristic in pond and the high-power output characteristic of capacitor.As it can be seen that it is super for how improving capacitance and durability
The important research direction of grade capacitor.
In addition, there are many material for doing activated carbon, but it is suitble to do the carbon source of ultracapacitor or limited.So people one
Directly opening up new carbon source.On the other hand, activated carbon nitrating can improve the performance of active charcoal super capacitor, multi-purpose at present straight
It connects the nitrogenous compounds such as doping urea, melamine and achievees the purpose that nitrating.But this method one side nitrogen utilization rate
Low, N is not easy quantitative in absorbent charcoal material, and the doped raw material on the other hand not utilized is not easy to remove, and causes secondary pollution, no
Meet friendly process production standard.
Invention content
Based on above-mentioned technical problem, present invention offer is a kind of to utilize 1,3,5- tri- imidazole radicals benzene to prepare super capacitor for carbon source
The method of device.
The adopted technical solution is that：
A kind of method for utilizing 1,3,5- tri- imidazole radicals benzene to prepare ultracapacitor for carbon source, includes the following steps：
(1) 1,3,5- tri- imidazole radicals benzene is placed in high temperature furnace, it is per minute in argon gas or nitrogen atmosphere of inert gases
With 5 DEG C of the rate of heat addition from room temperature to 500-800 DEG C, constant temperature 1-3h, room temperature is then naturally cooled to get super capacitor
The special TIB activated carbons of device；
(2) with special made from 1-10wt% polytetrafluoroethylene (PTFE), 5-20wt% acetylene carbon blacks and 70-94wt% steps (1)
TIB activated carbons are that raw material components are processed into electrode material, then assemble to obtain ultracapacitor using the electrode material.
Preferably, in step (1)：The preparation condition of TIB activated carbons is the constant temperature 1-3h at 600-700 DEG C.
More preferably, the preparation condition of TIB activated carbons is the constant temperature 2h at 600 DEG C.
Preferably, in step (2), the electrode material of ultracapacitor is made of the raw material components of following parts by weight：75-85
Part TIB activated carbons, 5-8 parts of polytetrafluoroethylene (PTFE) and 10-15 parts of acetylene carbon blacks.
More preferably, the electrode material of ultracapacitor is made of the raw material components of following parts by weight：80 parts of TIB activity
Charcoal, 5 parts of polytetrafluoroethylene (PTFE) and 15 parts of acetylene carbon blacks.
The method have the benefit that：
(1) TIB has expanded it as the new carbon of ultracapacitor usually as the ligand for synthesizing complex, the present invention
The purposes in source；
(2) it is used as new carbon source, since the nitrogen in TIB is not only to quantify, and is with point on molecule, atomic size
It dissipates in carbon atom.So it overcomes original direct doping Nitrogen element raw material (such as urea, melamine) technology nitrogen
Utilization rate is low, difficult defect that is quantitative, having pollution, be have nitrogen it is quantitative, all of, free of contamination friendly process.
(3) present invention gained ultracapacitor is in 0.1Ag-1Current density under, capacitance >=100Fg-1, by 5000
After circle cycle, the initial value of capacitance >=90%.
Description of the drawings
The thermal stability TG curves for the TIB activated carbons that Fig. 1 is prepared at a temperature of being tetra- kinds of embodiment 1-4；
Cyclic voltammetry of the ultracapacitor that Fig. 2 is prepared at a temperature of being tetra- kinds of embodiment 1-4 under different scanning rates
Curve；
The ultracapacitor that Fig. 3 is prepared at a temperature of being tetra- kinds of embodiment 1-4 has super electricity under different current densities
The triangle charging and discharging curve of container characteristics.
Specific implementation mode
In order to overcome ultracapacitor making carbon source limited, the raw material of Nitrogen element, nitrogen utilization rate are directly adulterated
Low, difficult defect that is quantitative, having pollution, the present invention are utilized containing quantitative nitrogen, 1 with class graphene particular plane structure,
3,5- tri- imidazole radicals benzene (TIB) are new carbon source, are first prepared into special-purpose activated charcoal, then prepare electrode, then assemble
It is simple for process to ultracapacitor, it is environmentally protective.Capacitance >=100Fg of done ultracapacitor-1, recycled by 5000 circles
Afterwards, the initial value of capacitance >=90%.
The present invention disclose it is a kind of utilize 1,3,5- tri- imidazole radicals benzene (TIB) be carbon source prepare activated carbon, then prepare super
The method of capacitor.In order to keep advantages of the present invention, technical solution clearer, clear, with reference to specific embodiment to this
Invention is described further.
Raw material needed for the present invention can be commercially available by commercial channel.
The molecular structural formula of tri- imidazole radicals benzene (TIB) of 1,3,5- is as follows：
Embodiment 1
(1) 1,3,5- tri- imidazole radicals benzene (TIB) is placed in high temperature furnace, it is per minute with 5 in argon inert gas atmosphere
DEG C the rate of heat addition from room temperature to 500 DEG C, constant temperature 3h, naturally cool to room temperature to get ultracapacitor special TIB activity
Charcoal.
(2) with special TIB activated carbons made from 1wt% polytetrafluoroethylene (PTFE), 5wt% acetylene carbon blacks and 94wt% steps (1)
It is processed into electrode material for raw material components, then assembles to obtain ultracapacitor using the electrode material.
Prepared ultracapacitor is in 0.1Ag-1Current density under, capacitance 88Fg-1。
Embodiment 2
(1) 1,3,5- tri- imidazole radicals benzene (TIB) is placed in high temperature furnace, it is per minute with 5 in argon inert gas atmosphere
DEG C the rate of heat addition from room temperature to 600 DEG C, constant temperature 2h, naturally cool to room temperature to get ultracapacitor special TIB activity
Charcoal.
(2) with special TIB activated carbons made from 5wt% polytetrafluoroethylene (PTFE), 15wt% acetylene carbon blacks and 80wt% steps (1)
It is processed into electrode material for raw material components, then assembles to obtain bipolar electrode ultracapacitor using the electrode material.
Prepared ultracapacitor is in 0.1Ag-1Current density under, capacitance 103Fg-1, recycled by 5000 circles
Afterwards, capacitance is 93% initial value.
Embodiment 3
(1) TIB is placed in high temperature furnace, in nitrogen atmosphere of inert gases, it is per minute with 5 DEG C of the rate of heat addition from room temperature
700 DEG C, constant temperature 2.5h are warming up to, naturally cools to room temperature to get ultracapacitor special-purpose activated charcoal.
(2) electrode of ultracapacitor is by 3wt% polytetrafluoroethylene (PTFE), the TIB activity of 10wt% acetylene carbon blacks and 87wt%
Charcoal forms.
Prepared ultracapacitor is in 0.1Ag-1Current density under, capacitance 101Fg-1, recycled by 5000 circles
Afterwards, capacitance is 90% initial value.
Embodiment 4
(1) TIB is placed in high temperature furnace, in nitrogen atmosphere of inert gases, it is per minute with 5 DEG C of the rate of heat addition from room temperature
800 DEG C, constant temperature 1h are warming up to, naturally cools to room temperature to get ultracapacitor special-purpose activated charcoal.
(2) electrode of ultracapacitor is by 10wt% polytetrafluoroethylene (PTFE), the TIB activity of 20wt% acetylene carbon blacks and 70wt%
Charcoal forms.
Prepared ultracapacitor is in 0.1Ag-1Current density under, capacitance 18Fg-1。
The thermal stability TG curves for the activated carbon that Fig. 1 is prepared at a temperature of being tetra- kinds of embodiment 1-4.It can be seen that 100 DEG C of left sides
The moisture of right material weightlessness 10% or so illustrates that activated carbon is porous material, and the ability for adsorbing moisture in air is stronger.100-
During 420 DEG C, material is highly stable, and material has larger weightless reaction at 420 DEG C.Illustrate the heat-resist of the material, makes
Device thermophily it is relatively good.
Fig. 2 is that embodiment 1-4 is existed with the TIBC ultracapacitors (SC-TIBC) of the activated carbon preparation prepared at a temperature of four kinds
Different scanning rates (mVs-1) under cyclic voltammetry curve (CV)；It is respectively wherein (a) by (a)-(d) sweep speeds
20mV·s-1；(b)100mV·s-1；(c)300mV·s-1；(d)500mV·s-1.By comparing, the activated carbon prepared at 600 DEG C
Capacitor is in 100mVs-1The closed rectangular formed when middle low-velocity scanning rate below best suits ideal recharge-discharge symmetry
The feature of ultracapacitor Cyclic voltamogram capacitance curve.
Fig. 3 be embodiment 1-4 with the ultracapacitor of the activated carbon preparation prepared at a temperature of four kinds in different current densities
Under the triangle charging and discharging curve with ultracapacitor feature；Wherein (a) 0.1Ag-1；(b)0.5Ag-1；(c)1Ag-1；(d)
3Ag-1.By comparing, activated carbon condenser capacitance value highest identical with CV, being prepared at 600 DEG C.For example, current density is
0.1Ag-1When, the capacitance of the capacitor prepared by the activated carbons of 500 DEG C, 600 DEG C, 700 DEG C, 800 DEG C preparations is respectively 88,103,
101 and 18Fg-1.Capacitance is reduced with the increase of current density, but the activated carbon capacitor institute prepared at 600 DEG C is impacted most
It is small.
Claims (5)
1. a kind of method for utilizing 1,3,5- tri- imidazole radicals benzene to prepare ultracapacitor for carbon source, it is characterised in that including following step
Suddenly：
(1) 1,3,5- tri- imidazole radicals benzene is placed in high temperature furnace, it is per minute with 5 in argon gas or nitrogen atmosphere of inert gases
DEG C the rate of heat addition from room temperature to 500-800 DEG C, constant temperature 1-3h, then naturally cool to room temperature to get ultracapacitor
Special TIB activated carbons；
(2) it is lived with special TIB made from 1-10wt% polytetrafluoroethylene (PTFE), 5-20wt% acetylene carbon blacks and 70-94wt% steps (1)
Property charcoal be raw material components be processed into electrode material, then assemble to obtain ultracapacitor using the electrode material.
2. a kind of method for utilizing 1,3,5- tri- imidazole radicals benzene to prepare ultracapacitor for carbon source according to claim 1,
It is characterized in that, in step (1)：The preparation condition of TIB activated carbons is the constant temperature 1-3h at 600-700 DEG C.
3. a kind of method for utilizing 1,3,5- tri- imidazole radicals benzene to prepare ultracapacitor for carbon source according to claim 2,
It is characterized in that：The preparation condition of TIB activated carbons is the constant temperature 2h at 600 DEG C.
4. a kind of method for utilizing 1,3,5- tri- imidazole radicals benzene to prepare ultracapacitor for carbon source according to claim 1,
It is characterized in that, in step (2), the electrode material of ultracapacitor is made of the raw material components of following parts by weight：75-85 parts
TIB activated carbons, 5-8 part polytetrafluoroethylene (PTFE) and 10-15 parts of acetylene carbon blacks.
5. a kind of method for utilizing 1,3,5- tri- imidazole radicals benzene to prepare ultracapacitor for carbon source according to claim 4,
It is characterized in that：The electrode material of ultracapacitor is made of the raw material components of following parts by weight：80 parts of TIB activated carbons, 5 parts it is poly-
Tetrafluoroethene and 15 parts of acetylene carbon blacks.
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| CN106158430A (en) * | 2016-09-06 | 2016-11-23 | 上海电力学院 | A kind of preparation method of the electrode material for ultracapacitor |
| CN106582817A (en) * | 2016-12-28 | 2017-04-26 | 山东理工大学 | Simple and convenient method for preparing three-dimensional nitrogen-doped graphene |
| CN106582816A (en) * | 2016-12-28 | 2017-04-26 | 山东理工大学 | Three-dimensional nitrogen doped graphene with multistage porous channels and prepared of polybenzimidazole |
| CN106744849A (en) * | 2016-12-28 | 2017-05-31 | 山东理工大学 | Polybenzimidazoles（PBI）The method that family macromolecule prepares three-dimensional grapheme |
-
2018
- 2018-05-28 CN CN201810519014.2A patent/CN108630455A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104903984A (en) * | 2012-11-13 | 2015-09-09 | 可乐丽化学株式会社 | Carbon material for polarizable electrodes and method for producing same |
| CN106158430A (en) * | 2016-09-06 | 2016-11-23 | 上海电力学院 | A kind of preparation method of the electrode material for ultracapacitor |
| CN106582817A (en) * | 2016-12-28 | 2017-04-26 | 山东理工大学 | Simple and convenient method for preparing three-dimensional nitrogen-doped graphene |
| CN106582816A (en) * | 2016-12-28 | 2017-04-26 | 山东理工大学 | Three-dimensional nitrogen doped graphene with multistage porous channels and prepared of polybenzimidazole |
| CN106744849A (en) * | 2016-12-28 | 2017-05-31 | 山东理工大学 | Polybenzimidazoles（PBI）The method that family macromolecule prepares three-dimensional grapheme |
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