CN105826087A - Preparation method of active carbon powder used for manufacturing supercapacitor electrode - Google Patents
Preparation method of active carbon powder used for manufacturing supercapacitor electrode Download PDFInfo
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- CN105826087A CN105826087A CN201610219820.9A CN201610219820A CN105826087A CN 105826087 A CN105826087 A CN 105826087A CN 201610219820 A CN201610219820 A CN 201610219820A CN 105826087 A CN105826087 A CN 105826087A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 230000004913 activation Effects 0.000 claims abstract description 32
- 239000003990 capacitor Substances 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000012190 activator Substances 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 239000013505 freshwater Substances 0.000 claims description 28
- 238000004140 cleaning Methods 0.000 claims description 22
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 11
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 9
- 239000001569 carbon dioxide Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 239000002912 waste gas Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 8
- 239000008187 granular material Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 3
- 238000012372 quality testing Methods 0.000 claims description 3
- 239000007772 electrode material Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000011031 large-scale manufacturing process Methods 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 10
- 239000002250 absorbent Substances 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 4
- 239000003610 charcoal Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000011232 storage material Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000002322 conducting polymer Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- -1 room temperature Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance 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
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/44—Raw materials therefor, e.g. resins or coal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- 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
-
- 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
- H01G11/36—Nanostructures, e.g. nanofibres, nanotubes or fullerenes
-
- 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)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Nanotechnology (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a preparation method of active carbon powder used for manufacturing a supercapacitor electrode. First of all, a raw material, i.e., the active carbon powder is cleaned at a normal temperature for removing impurities, then, an activator is added to the cleaned active carbon powder at the normal temperature for stirring uniformly, the active carbon powder with the activator is dried at a temperature of 120 DEG C, activation processing is performed on the dried active carbon powder under the condition of 850-900 DEG C, the activated active carbon powder is precisely cleaned under the condition of 50-80 DEG C, the precisely cleaned active carbon powder is dried at the temperature of 120 DEG C, and finally, the active carbon powder is detected and then leaves a factory. The active carbon powder prepared by use of the method has a micron-order porous structure so that the power density of a capacitor is improved. Energy consumption in a preparation process is quite small, large-scale production can be realized, the preparation method employs a low-price raw material, is simple and is easy to control, the prepared active carbon powder has a good precipitation effect and good reversibility, capacitance of a supercapacitor electrode material is enabled to be increased, the supercapactor property is good, and the active carbon powder is applied to prepare a supercapacitor electrode material with high energy density and high power density.
Description
Technical field
The invention belongs to electrode material for super capacitor technical field, particularly relate to the preparation method of a kind of activated carbon powder for making electrode of super capacitor.
Background technology
In today that energy source height consumes, earth fossil fuel is petered out, and tellurian oil will be exhausted after about 50 years to have scientist to foretell, the mankind have to find the reproducible energy.Solar energy and wind energy are inexhaustible, are preferable alternative energy sources.How but by these step energy quick storage and can quickly discharge again the most individual difficult problem, although the energy density of traditional chemical cell is the highest, but power density ratio is relatively low, and the discharge and recharge time is long, is difficult to solve a storage difficult problem for intermittent energy.Ultracapacitor is a class newly energy energy storage material of high speed development in recent years, its performance is between traditional capacitor and battery, have battery high-energy-density and the feature of traditional capacitor high-specific-power concurrently, there is the highest power density, considerably long service life, discharge and recharge are rapid, are the preferable storage materials of intermittent energy.Ultracapacitor is to be realized electric charge stored by the two dimension between electrolyte ion and electrode or quasi-two dimension effect.Ultracapacitor also have can instantaneous large-current discharge and recharge, operating temperature range width, the advantage such as safe and pollution-free, thus have the application advantage of uniqueness and wide application prospect in many occasions.Current each state all spares no effort ultracapacitor is carried out research and development.
The research of ultracapacitor, concentrate in the preparation of high performance electrode material, the property indices of ultracapacitor then depend on its electrode material kind, the conventional active Carbon Materials of electrode material, metal-oxide and conducting polymer, the electrode material of ultracapacitor generally uses the absorbent charcoal material of high conductivity, the electrode research of absorbent charcoal material is the most ripe at present, and super electrode cost ratio that absorbent charcoal material is made is less expensive, power density and energy density are the highest, it is easy to extensively apply.Commercial production and the applicating history of absorbent charcoal material are long, and it is the earliest for the material of electrode of super capacitor.Its abundant raw material source, such as coal, timber, shuck, resin etc., after raw material is modulated, then prepares activated carbon powder after carbonization-activation.Based on above feature, use cheap raw material, prepare the electrode material for super capacitor activated carbon powder of high-energy-density and power density by method simple and easy to control and be still that the target of the unremitting pursuit of whole world science.
Summary of the invention
The deficiency that the present invention exists to overcome prior art, it is provided that a kind of with low cost, preparation method is simple, be prone to the preparation method of the activated carbon powder for making electrode of super capacitor of industrialized production.
The present invention is achieved by the following technical solutions: the preparation method of a kind of activated carbon powder for making electrode of super capacitor, it comprises the steps:
A, raw material activated carbon powder is cleaned repeatedly repeatedly with fresh water (FW) at normal temperatures in cleaning machine, remove the impurity in raw material activated carbon powder；
B, will clean after activated carbon powder add activator at normal temperatures and stir, then the activated carbon powder admixing activator is loaded in baking oven, activated carbon powder is dried in baking oven under the temperature conditions of 120 DEG C；
C, by step b dry after activated carbon powder in activation equipment, under conditions of temperature is 850 DEG C～900 DEG C, carry out activation processing；
D, activated carbon powder after step c activation processing carry out precision cleaning with fresh water (FW) under conditions of temperature is 50 DEG C～80 DEG C in precision cleaning equipment；
E, activated carbon powder after precision cleaning load in baking oven, and activated carbon powder is dried in baking oven under the temperature conditions of 120 DEG C；
F, the activated carbon powder after step e drying and processing is carried out quality testing, detect qualified after dispatch from the factory, i.e. prepare the activated carbon powder for making electrode of super capacitor.
Fresh water (FW) in step a and step d removed removing carbon dioxide through water treatment facilities before entering cleaning step, and the activated carbon powder after raw material activated carbon powder and activated process is carried out after removing removing carbon dioxide by fresh water (FW) again.
Being provided with air channel in baking oven, baking oven uses circulated air, the harmful gas that after activated dose of immersion, activated carbon powder volatilizees in drying course to detach in cleaning equipment through the air channel of baking oven.
Activation equipment in step c includes activation furnace, pressure warning unit and crosses temperature control device, at the uniform velocity rotation by activation furnace body of heater inner furnace, pass to nitrogen again, activated carbon powder after admixing activator and drying activates, the furnace pressure by pressure warning unit and crossing temperature control device control activation furnace and temperature；Activation equipment is also associated with a movable filtering device, and the granule waste gas after the activation of activated equipment detaches filtration by movable filtering device makes the activated waste gas degree of being harmful to processed be down to minimum.
The invention has the beneficial effects as follows: the activated carbon powder using the inventive method to prepare, there is micron-sized loose structure, be substantially reduced the internal resistance of capacitor, improve the power density of capacitor.In preparation process, the energy consumption of the present invention is less, the activated carbon powder prepared has good flexibility, and the preparation method of the present invention is not limited by a space, can be mass-produced, the present invention uses cheap raw material, preparation method simple and easy to control to prepare the electrode material for super capacitor activated carbon powder of high-energy-density and power density.The activated carbon powder deposition effect using the inventive method to prepare is good, reversibility is preferable, has 3-D solid structure inside activated carbon powder, so that the electric capacity of electrode material for super capacitor increases, the energy density of capacitor can be greatly improved, there is good super capacitor character.
The fresh water (FW) used in the present invention uses the water treatment facilities quickly removing removing carbon dioxide to be removed by the carbon dioxide in fresh water (FW), water treatment facilities utilizes Water level controller controlling water level, in the case of boiling, heats half an hour, remove removing carbon dioxide, heated by electrodes, opens wide upper cover and fully volatilizees by gas, and upper cover uses removable cover, by the smart design of removable cover, gas can be passed through smoothly, it is not necessary to when gas is passed through, and cover plate closes automatically.In the present invention use precision cleaning equipment by preset pore jet in equipment cavity, the rapid expanding blasting of gas, finally make material be sufficiently mixed.
The cleaning machine cleaning raw material activated carbon powder at the uniform velocity stirs material by agitating device, allows material produce centrifugal force with water, makes water also go through soda acid activation well into the pore structure of activated carbon, room temperature, cavity wall material.Baking oven use circulated air, activator soak after harmful gas in air channel detaches cleaning equipment, will not atmosphere pollution, environmental protection.
The activation equipment at the uniform velocity rotation by activation furnace body of heater inner furnace, then pass to nitrogen, material is activated, controls furnace pressure and temperature by pressure warning unit and temperature control device excessively.Granule waste gas after the activation of movable filtering device activated equipment is detached filtration by labyrinth gland by filter, the waste gas degree of being harmful to processed is down to minimum, reduce the waste gas pollution to environment, defecator specifically controls according to body of heater smoke discharging volume with body of heater contact frequency, also includes smoke removing device and boiling device in preparation process.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.
The preparation method of a kind of activated carbon powder for making electrode of super capacitor, it comprises the steps: a, is repeatedly cleaned repeatedly in cleaning machine with fresh water (FW) at normal temperatures by raw material activated carbon powder, removes the impurity in raw material activated carbon powder；B, will clean after activated carbon powder add activator at normal temperatures and stir, then the activated carbon powder admixing activator is loaded in baking oven, activated carbon powder is dried in baking oven under the temperature conditions of 120 DEG C；C, by step b dry after activated carbon powder in activation equipment, under conditions of temperature is 850～900 DEG C, carry out activation processing；D, activated carbon powder after step c activation processing carry out precision cleaning with fresh water (FW) under conditions of temperature is 50～80 DEG C in precision cleaning equipment；E, activated carbon powder after precision cleaning load in baking oven, and activated carbon powder is dried in baking oven under the temperature conditions of 120 DEG C；F, the activated carbon powder after step e drying and processing is carried out quality testing, detect qualified after dispatch from the factory, i.e. prepare the activated carbon powder for making electrode of super capacitor.
Fresh water (FW) in step a and step d removed removing carbon dioxide through water treatment facilities before entering cleaning step, and the activated carbon powder after raw material activated carbon powder and activated process is carried out after removing removing carbon dioxide by fresh water (FW) again.Being provided with air channel in baking oven, baking oven uses circulated air, the harmful gas that after activated dose of immersion, activated carbon powder volatilizees in drying course to detach in cleaning equipment through the air channel of baking oven.Activation equipment in step c includes activation furnace, pressure warning unit and crosses temperature control device, at the uniform velocity rotation by activation furnace body of heater inner furnace, pass to nitrogen again, activated carbon powder after admixing activator and drying activates, the furnace pressure by pressure warning unit and crossing temperature control device control activation furnace and temperature；Activation equipment is also associated with a movable filtering device, and the granule waste gas after the activation of activated equipment detaches filtration by movable filtering device makes the activated waste gas degree of being harmful to processed be down to minimum.
Finally should be noted that; above content is only in order to illustrate technical scheme; rather than limiting the scope of the invention, simple modification that technical scheme is carried out by those of ordinary skill in the art or equivalent, all without departing from the spirit and scope of technical solution of the present invention.
Claims (4)
1. the preparation method being used for making the activated carbon powder of electrode of super capacitor, it is characterised in that: the preparation method of described activated carbon powder comprises the steps:
A, raw material activated carbon powder is cleaned repeatedly repeatedly with fresh water (FW) at normal temperatures in cleaning machine, remove the impurity in raw material activated carbon powder；
B, will clean after activated carbon powder add activator at normal temperatures and stir, then the activated carbon powder admixing activator is loaded in baking oven, activated carbon powder is dried in baking oven under the temperature conditions of 120 DEG C；
C, by step b dry after activated carbon powder in activation equipment, under conditions of temperature is 850 DEG C～900 DEG C, carry out activation processing；
D, activated carbon powder after step c activation processing carry out precision cleaning with fresh water (FW) under conditions of temperature is 50 DEG C～80 DEG C in precision cleaning equipment；
E, activated carbon powder after precision cleaning load in baking oven, and activated carbon powder is dried in baking oven under the temperature conditions of 120 DEG C；
F, the activated carbon powder after step e drying and processing is carried out quality testing, detect qualified after dispatch from the factory, i.e. prepare the activated carbon powder for making electrode of super capacitor.
The preparation method of a kind of activated carbon powder for making electrode of super capacitor the most according to claim 1, it is characterized in that: the fresh water (FW) in described step a and step d removed removing carbon dioxide through water treatment facilities before entering cleaning step, and the activated carbon powder after raw material activated carbon powder and activated process is carried out after removing removing carbon dioxide by fresh water (FW) again.
The preparation method of a kind of activated carbon powder for making electrode of super capacitor the most according to claim 1 and 2, it is characterized in that: in described baking oven, be provided with air channel, baking oven uses circulated air, the harmful gas that after activated dose of immersion, activated carbon powder volatilizees in drying course to detach in cleaning equipment through the air channel of baking oven.
The preparation method of a kind of activated carbon powder for making electrode of super capacitor the most according to claim 1 and 2, it is characterized in that: the activation equipment in step c includes activation furnace, pressure warning unit and crosses temperature control device, at the uniform velocity rotation by activation furnace body of heater inner furnace, pass to nitrogen again, activated carbon powder after admixing activator and drying activates, the furnace pressure by pressure warning unit and crossing temperature control device control activation furnace and temperature；Described activation equipment is also associated with a movable filtering device, and the granule waste gas after the activation of activated equipment detaches filtration by movable filtering device makes the activated waste gas degree of being harmful to processed be down to minimum.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610219820.9A CN105826087A (en) | 2016-04-11 | 2016-04-11 | Preparation method of active carbon powder used for manufacturing supercapacitor electrode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610219820.9A CN105826087A (en) | 2016-04-11 | 2016-04-11 | Preparation method of active carbon powder used for manufacturing supercapacitor electrode |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11135378A (en) * | 1997-10-30 | 1999-05-21 | Daido Steel Co Ltd | Manufacture of solid activated carbon electrode |
| CN2479453Y (en) * | 2001-04-23 | 2002-02-27 | 常州市范群干燥设备有限公司 | Turbogrid oven |
| CN101844765A (en) * | 2010-06-02 | 2010-09-29 | 天津大学 | Active carbon for preparing carbon electrode of super capacitor and preparation method thereof |
| CN102838115A (en) * | 2012-10-10 | 2012-12-26 | 江西财经大学 | Preparation method of petroleum coke base high specific surface area activated carbon used for supercapacitor |
| CN102867654A (en) * | 2012-09-10 | 2013-01-09 | 中国科学院大连化学物理研究所 | Graphitized activated carbon electrode material for supercapacitor and preparation method thereof |
| CN103268090A (en) * | 2013-04-28 | 2013-08-28 | 韶关市柏林再生资源开发有限公司 | Coal gangue activation numerical control system |
-
2016
- 2016-04-11 CN CN201610219820.9A patent/CN105826087A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11135378A (en) * | 1997-10-30 | 1999-05-21 | Daido Steel Co Ltd | Manufacture of solid activated carbon electrode |
| CN2479453Y (en) * | 2001-04-23 | 2002-02-27 | 常州市范群干燥设备有限公司 | Turbogrid oven |
| CN101844765A (en) * | 2010-06-02 | 2010-09-29 | 天津大学 | Active carbon for preparing carbon electrode of super capacitor and preparation method thereof |
| CN102867654A (en) * | 2012-09-10 | 2013-01-09 | 中国科学院大连化学物理研究所 | Graphitized activated carbon electrode material for supercapacitor and preparation method thereof |
| CN102838115A (en) * | 2012-10-10 | 2012-12-26 | 江西财经大学 | Preparation method of petroleum coke base high specific surface area activated carbon used for supercapacitor |
| CN103268090A (en) * | 2013-04-28 | 2013-08-28 | 韶关市柏林再生资源开发有限公司 | Coal gangue activation numerical control system |
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Application publication date: 20160803 |