CN1778675A - Production of active carbon material for capacitor electrode with double electric layers - Google Patents
Production of active carbon material for capacitor electrode with double electric layers Download PDFInfo
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- CN1778675A CN1778675A CN 200510021828 CN200510021828A CN1778675A CN 1778675 A CN1778675 A CN 1778675A CN 200510021828 CN200510021828 CN 200510021828 CN 200510021828 A CN200510021828 A CN 200510021828A CN 1778675 A CN1778675 A CN 1778675A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 27
- 239000003575 carbonaceous material Substances 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 57
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 21
- 239000007772 electrode material Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 7
- 239000012153 distilled water Substances 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 230000007935 neutral effect Effects 0.000 claims abstract description 4
- 230000007420 reactivation Effects 0.000 claims description 52
- 239000003795 chemical substances by application Substances 0.000 claims description 28
- 230000004913 activation Effects 0.000 claims description 23
- 238000002360 preparation method Methods 0.000 claims description 13
- 239000012467 final product Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000011148 porous material Substances 0.000 abstract description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract description 4
- 235000017550 sodium carbonate Nutrition 0.000 abstract description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract description 2
- 239000012190 activator Substances 0.000 abstract 3
- 230000003213 activating effect Effects 0.000 abstract 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 abstract 2
- 230000001681 protective effect Effects 0.000 abstract 2
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 abstract 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 1
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- 235000011116 calcium hydroxide Nutrition 0.000 abstract 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 abstract 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 abstract 1
- 235000015320 potassium carbonate Nutrition 0.000 abstract 1
- 229910000027 potassium carbonate Inorganic materials 0.000 abstract 1
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 abstract 1
- 229910000404 tripotassium phosphate Inorganic materials 0.000 abstract 1
- 235000019798 tripotassium phosphate Nutrition 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 39
- 239000008151 electrolyte solution Substances 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 230000005518 electrochemistry Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000005486 organic electrolyte Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 229910013063 LiBF 4 Inorganic materials 0.000 description 1
- 229910013684 LiClO 4 Inorganic materials 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical compound CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 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
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/34—Carbon-based characterised by carbonisation or activation of carbon
-
- 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)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Production of active carbon materials for double-layer capacitor electrode includes taking powdery mixture containing one or above KOH, NaOH, LiOH, Ca(OH)2, Na2CO3, K2CO3, K3PO4, FeSO4, P2O5 and ZnCL2 0.5-10 proportion as secondary activator, mixing with active carbon powder 1 proportion, taking N2 as protective gas, activating at high-temperature above secondary activator for 10mins-10 hrs, washing to become neutral by distilled water and drying or taking aqueous vapor or CO2 as secondary activator, taking N2 as protective gas, activating active carbon powdery at 500-1100DEG C and cooling to normal temperature. Its advantages include larger effective specific area of electrode material, pore volume and electrochemical capacity, better conductivity and low cost.
Description
Affiliated technical field
The present invention relates to the preparation method of the active carbon material that a kind of electrical double layer capacitor electrodes uses.
Background technology
Double layer capacitor (DELC, Double Electric Layers Capacitors) is called electric chemical super capacitor (ESC again, Electrochemical Super Capacitors), be that a kind of energy is quick, high current charge-discharge, have super charge storage ability, the device of powerful pulse power can be provided.Its range of application is expanded day by day, especially along with environmentally friendly vehicle---and the appearance of electromobile, powerful double layer capacitor have more shown its unprecedented application prospect.Therefore, the research of double layer capacitor presents unprecedented research boom in recent years.
According to the Charge Storage principle of double layer capacitor, prepare two big key factors of high performance double layer capacitor: electrode materials and electrolytic solution.The counter electrode material, improving its performance has two Basic Ways: the first, increase the effective ratio area of electrode materials, thereby increase the electric double layer capacitance amount.Because have only the aperture could form electrostatic double layer, thereby electrode materials just can effectively be utilized greater than mesopore and the macropore of 2nm.The second, constantly increase the chance and the quantity of reversible faraday's reaction of material, thereby improve the pseudo-capacity capacity.In general, double layer capacitor can be summed up as the requirement of its electrode materials: good conductivity, pore volume are big; Pore size distribution is concentrated and relatively greater than 2nm, and also the effective ratio area that forms of mesopore that can be utilized by electrolytic solution and macropore is big; Good moldability and cheap.
The electrode materials of existing double layer capacitor is divided into 4 big classes: carbon material series, transition metal oxide series, organic conductive series of polymers, other series.At present the most competitive is the carbon material series cheap, that material is easy to get.In the carbon material series widely used be activated carbon (AC, ActivatedCarbon).But existing activated carbon, owing to contact between its particle and the particle and be not fine, poorly conductive, and pore volume is little, and is few greater than mesopore and the macropore of 2nm, is unfavorable for forming electrostatic double layer, the hole utilization ratio is not high, also can be less by the effective ratio area that electrolysis utilizes, make to be subjected to suppressing significantly by the performance of activated carbon as the double layer capacitor of electrode, can not reach satisfied effect.
Summary of the invention
Purpose of the present invention just provides the preparation method of the active carbon material that a kind of electrical double layer capacitor electrodes uses, the electrode material for electric double layer capacitor of this method preparation, pore volume is big, mesopore and macropore greater than 2nm are many, effective ratio area is big, electrochemistry capacitance is big, conducts electricity very well, and cost of manufacture is cheap.
The present invention for solution technical scheme that its technical problem adopts is: the preparation method of the active carbon material that a kind of electrical double layer capacitor electrodes is used the steps include:
A, get 0.5-10 part heavy Powdered analytical pure level KOH, NaOH, LiOH, Ca (OH)
2, Na
2CO
3, K
2CO
3, K
3PO
4, FeSO
4, P
2O
5, ZnCL
2In one or more mixture as the re-activation agent, with the activated carbon powder thorough mixing of 1 part of weight;
B, the mixture in a step is put into the airtight vessel of inlet mouth and air outlet, in airtight vessel, feed purity by inlet mouth and be not less than 99.9% N
2As protection gas, under the high temperature of the melting temperature that is higher than the re-activation agent, activated 10 minutes-10 hours, be cooled to normal temperature;
C, b is gone on foot cooled activated carbon powder from airtight vessel, take out, to neutral, get final product after the drying with distilled water flushing.
The better weight range of above-mentioned re-activation agent is heavy for 1-4 part, and the better time range of activation treatment is 0.5-4 hour.
For realizing that the another kind of similar techniques scheme that purpose of the present invention adopts is: the preparation method of the active carbon material that a kind of electrical double layer capacitor electrodes is used the steps include:
A, the activated carbon powder of 1 part of weight is put into the airtight vessel of inlet mouth and air outlet, in airtight vessel, feed purity by inlet mouth and be not less than 99.9% N
2As protection gas, be warming up to 500 ℃-1100 ℃;
B, feeding N then
2The time per minute bring 0.02-2 part heavy water vapour or CO into
2As the re-activation agent, activated 10 minutes-10 hours; Be cooled to normal temperature, get final product after the drying.
The better time range of above-mentioned activation treatment is 0.5-2 hour, water vapour that per minute is brought into or CO
2Better weight is heavy for 0.2-1 part.
Compared with prior art the invention has the beneficial effects as follows: the active carbon material of under hot conditions an existing activation treatment being crossed with the re-activation agent carries out the re-activation processing; Behind the re-activation, the specific surface area of activated carbon and pore volume increase; Simultaneously, in the active carbon material behind the re-activation, do not have the micro content of contribution to reduce, and the aperture that electrochemistry capacitance is played a decisive role increase greater than mesopore and the big hole number of 2nm to electrochemical specific capacity.Therefore, the pore volume of the active carbon material behind the re-activation is big, and effective ratio area increases, and conducts electricity very well, and electrochemistry capacitance increases.Prove that through experiment test adopt the active carbon material of the inventive method preparation to compare with the active carbon material that does not adopt present method to handle, electrochemical specific capacity improves more than 2 times, reaches 145F/g, and in 200 loop tests, do not see obvious decay; Pore volume improves about 1 times, reaches 1.07cm
3/ g; Specific surface area improves more than 50%, reaches 1587m
2/ g.And the re-activation agent that present method adopts is cheap and easy to get, also need not expensive specific equipment, and it is with low cost, is easy to promote the use of.
The present invention is further illustrated below in conjunction with embodiment.
Embodiment
Embodiment one
The preparation method's of the active carbon material that this routine electric double layer capacitance electrode is used step is:
A, get 2 parts of weights Powdered analytical pure level KOH as the re-activation agent, with the activated carbon powder thorough mixing of 1 part of weight.B, the mixture in a step is put into the airtight vessel of inlet mouth and air outlet, in airtight vessel, feed purity by inlet mouth and be not less than 99.9% N
2As protection gas, under 800 ℃ high temperature, activate 1 hour, be cooled to normal temperature.C, b is gone on foot cooled activated carbon powder from airtight vessel, take out, to neutral, get final product after the drying with distilled water flushing.
Microtexture and electrochemical data such as following table with active carbon material behind the example method re-activation and existing active carbon material:
| Activated carbon | The electrochemical specific capacity of the electric double layer capacitance of making (F/g) | Specific surface area (m 2/g) | Pore volume (cm 3/g) |
| Be untreated | 45.0 | 1072 | 0.61 |
| After the processing | 145.0 | 1587 | 1.07 |
By table as seen, bigger specific surface area and pore volume and electrochemical specific capacity before the carbon material after re-activation is handled has than re-activation.
Embodiment two
The making method of method that this is routine and embodiment one is basic identical, different only be: adopting the NaOH of 4 parts of weights is the re-activation agent, and the activated carbon of 1 part of weight carries out re-activation; Activation temperature is 900 ℃, soak time 0.5 hour.
After tested, the electrode materials of Zhi Zuoing in this way, the content of 2～3nm mesopore of active carbon material wherein is 10%, the specific surface area of matrix is 2010m
2/ g, the electrochemical specific capacity of the electric double layer capacitance of making are 110F/g.
Embodiment three
The making method of method that this is routine and embodiment one is basic identical, different only be: with the FeSO of 1 part of weight
4Be the re-activation agent, the activated carbon of 1 part of weight carries out re-activation; Activation temperature is 650 ℃, soak time 4 hours.
After tested, the electrode that adopts this method to make, the specific surface area of electrode matrix is 1287m
2/ g, wherein the content of 2～3nm mesopore is 50%, the specific surface area of (applicant tests discovery: Kongzui can effectively be utilized by electrolytic solution among 2～3nm of activated carbon, to the contribution maximum of electrochemical specific capacity) matrix is 1287m
2/ g, electrochemical specific capacity are 152F/g.
Embodiment four
The making method of method that this is routine and embodiment one is basic identical, different only be: the LiOH with 0.5 part of weight is the re-activation agent, and the activated carbon of 1 part of weight carries out re-activation; Activation temperature is 650 ℃, soak time 4 hours.
Embodiment five
The making method of method that this is routine and embodiment one is basic identical, different only be: with the Na of 0.5 part of weight
2CO
3Be the re-activation agent, the activated carbon of 1 part of weight carries out re-activation; Activation temperature is 860 ℃, soak time 10 minutes.
Embodiment six
The making method of method that this is routine and embodiment one is basic identical, different only be: with the ZnCL of 5 parts of weights
2Be the re-activation agent, the activated carbon of 1 part of weight carries out re-activation; Activation temperature is 700 ℃, soak time 4 hours.
Embodiment seven
The making method of method that this is routine and embodiment one is basic identical, different only be: with the P of 8 parts of weights
2O
5Be the re-activation agent, the activated carbon of 1 part of weight carries out re-activation; Activation temperature is 600 ℃, soak time 8 hours.
Embodiment eight
The making method of method that this is routine and embodiment one is basic identical, different only be: with the k of 3 parts of weights
2CO
3Be the re-activation agent, the activated carbon of 1 part of weight carries out re-activation; Activation temperature is 900 ℃, soak time 2 hours.
Embodiment nine
The making method of method that this is routine and embodiment one is basic identical, different only be: with the Ca (OH) of 10 parts of weights
2Be the re-activation agent, the activated carbon of 1 part of weight carries out re-activation; Activation temperature is 950 ℃, soak time 10 hours.
Embodiment ten
The making method of method that this is routine and embodiment one is basic identical, different only be: with the K of 1.5 parts of weights
3PO
4Be the re-activation agent, the activated carbon of 1 part of weight carries out re-activation; Activation temperature is 1350 ℃, soak time 9 hours.
Embodiment 11
The making method of method that this is routine and embodiment one is basic identical, different only be: with 3 parts heavy FeSO
4With the mixtures of 2 parts heavy NaOH as the re-activation agent, the activated carbon of 1 part of weight is carried out re-activation; Activation temperature is 750 ℃, soak time 2 hours.
Embodiment 12
The making method of method that this is routine and embodiment one is basic identical, different only be: with the Na of 1 part of heavy KOH, 2 parts of weights
2CO
3And the ZnCL of 3 parts of weights
2Mixture is as the re-activation agent, and the activated carbon of 1 part of weight is carried out re-activation; Activation temperature is 900 ℃, soak time 5 hours.
Embodiment 13
The preparation method's of the active carbon material that this routine electric double layer capacitance electrode is used step is:
A, the activated carbon powder of 1 part of weight is put into the airtight vessel of inlet mouth and air outlet, in airtight vessel, feed purity by inlet mouth and be not less than 99.9% N
2As protection gas, be warming up to 700 ℃.
B, feeding N then
2The time per minute bring 0.03 part of weight into water vapour as the re-activation agent, activate 1 hour; Be cooled to normal temperature, get final product after the drying.
Active carbon material behind the re-activation in this example, the content in its 2～3nm hole are 22%, and the specific surface area of matrix is 2208m
2/ g, the electrochemical specific capacity of the electric double layer capacitance of making are 118F/g.
Embodiment 14
The making method of method that this is routine and embodiment 13 is basic identical, different only be: as the re-activation agent, the activated carbon of 1 part of weight is carried out re-activation with the water vapour of 2 parts of weights; Activation temperature is 800 ℃, soak time 2 hours.
Embodiment 15
The making method of method that this is routine and embodiment 13 is basic identical, different only be: as the re-activation agent, the activated carbon of 1 part of weight is carried out re-activation with the water vapour of 1 part of weight; Activation temperature is 1100 ℃, soak time 0.5 hour.
Embodiment 16
The making method of method that this is routine and embodiment 13 is basic identical, different only be: with the CO of 0.02 part of weight
2As the re-activation agent, the activated carbon of 1 part of weight is carried out re-activation; Activation temperature is 500 ℃, soak time 10 hours.
Embodiment 17
The making method of method that this is routine and embodiment 13 is basic identical, different only be: with the CO of 0.2 part of weight
2As the re-activation agent, the activated carbon of 1 part of weight is carried out re-activation; Activation temperature is 700 ℃, soak time 10 minutes.
Embodiment 18
The making method of method that this is routine and embodiment 13 is basic identical, different only be: with the CO of 1 part of weight
2As the re-activation agent, the activated carbon of 1 part of weight is carried out re-activation; Activation temperature is 900 ℃, soak time 30 minutes.
Embodiments of the present invention are not limited to 18 above-mentioned embodiment.
When making double layer capacitor, can adopt existing various electric double-layer capacitors prepared technology and equipment, make the double layer capacitor of various structure formations and specification with electrode of the present invention.The employed various electrolytic solution of the also existing various double layer capacitors of its electrolytic solution that adopts, ionogen, ionogen.Electrolytic solution comprises organic electrolyte and aqueous electrolyte, and water-soluble electrolyte has: H
2SO
4(sulfuric acid), NaOH (sodium hydroxide), KOH (potassium hydroxide) and Na
2CO
3(yellow soda ash) etc., concentration is between 5-70wt%.The ionogen of organic electrolyte comprises LiClO
4(lithium perchlorate), TEABF
4(tetraethyl ammonium a tetrafluoro borate), LiBF
4(LiBF4), LiPF
6(lithium hexafluoro phosphate), concentration is between 0.2-1.0mol/l.
Claims (4)
1, the preparation method of the active carbon material used of a kind of electrical double layer capacitor electrodes the steps include:
A, get 0.5-10 part heavy Powdered analytical pure level KOH, NaOH, LiOH, Ca (OH)
2, Na
2CO
3, K
2CO
3, K
3PO
4, FeSO
4, P
2O
5, ZnCL
2In one or more mixture as the re-activation agent, with the activated carbon powder thorough mixing of 1 part of weight;
B, the mixture in a step is put into the airtight vessel of inlet mouth and air outlet, in airtight vessel, feed purity by inlet mouth and be not less than 99.9% N
2As protection gas, under the high temperature of the melting temperature that is higher than the re-activation agent, activation treatment 10 minutes-10 hours is cooled to normal temperature;
C, b is gone on foot cooled activated carbon powder from airtight vessel, take out, to neutral, get final product after the drying with distilled water flushing.
2, the preparation method of electrode material for electric double layer capacitor as claimed in claim 1 is characterized in that: described re-activation agent is heavy for 1-4 part, and the time of activation treatment is 0.5-4 hour.
3, the preparation method of the active carbon material used of a kind of electrical double layer capacitor electrodes the steps include:
A, the activated carbon powder of 1 part of weight is put into the airtight vessel of inlet mouth and air outlet, in airtight vessel, feed purity by inlet mouth and be not less than 99.9% N
2As protection gas, be warming up to 500 ℃-1100 ℃;
B, feeding N then
2The time per minute bring 0.02-2 part heavy water vapour or CO into
2, as the re-activation agent, activation treatment 10 minutes-10 hours; Be cooled to normal temperature, get final product after the drying.
4, the preparation method of electrode material for electric double layer capacitor as claimed in claim 3 is characterized in that: the time of described activation treatment is 0.5-2 hour, water vapour that per minute is brought into or CO
2For 0.2-1 part weighs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100218286A CN100348481C (en) | 2005-10-05 | 2005-10-05 | Production of active carbon material for capacitor electrode with double electric layers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100218286A CN100348481C (en) | 2005-10-05 | 2005-10-05 | Production of active carbon material for capacitor electrode with double electric layers |
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| Publication Number | Publication Date |
|---|---|
| CN1778675A true CN1778675A (en) | 2006-05-31 |
| CN100348481C CN100348481C (en) | 2007-11-14 |
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ID=36769153
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|---|---|---|---|
| CNB2005100218286A Expired - Fee Related CN100348481C (en) | 2005-10-05 | 2005-10-05 | Production of active carbon material for capacitor electrode with double electric layers |
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Cited By (9)
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|---|---|---|---|---|
| CN101973542A (en) * | 2010-11-26 | 2011-02-16 | 深圳市今朝时代新能源技术有限公司 | Preparation method of porous carbon material for supercapacitor |
| CN102460620A (en) * | 2009-04-10 | 2012-05-16 | 吉坤日矿日石能源株式会社 | Carbon material for electric double layer capacitor electrode and method for producing carbon material |
| CN102583367A (en) * | 2012-01-19 | 2012-07-18 | 中国科学院山西煤炭化学研究所 | Preparation technology of mesopore-rich active carbon with high specific surface area |
| CN103359730A (en) * | 2013-07-08 | 2013-10-23 | 陈相展 | Activated carbon white powder preparation technology |
| CN103413690A (en) * | 2013-08-08 | 2013-11-27 | 方建辉 | Method for preparing mesoporous activated carbon used in supercapacitor by means of microwave modification |
| CN106622248A (en) * | 2016-11-21 | 2017-05-10 | 清华大学 | Porous nickel and carbon compound and preparation method of porous nickel and carbon compound |
| CN112216518A (en) * | 2020-09-15 | 2021-01-12 | 暨南大学 | Flexible zinc ion hybrid capacitor and preparation method and application thereof |
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| CN1511784A (en) * | 2002-12-28 | 2004-07-14 | 谢仁智 | Process for preparing large and medium pore high performance active carbon |
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