CN106783212A - A kind of preparation method of porous carbon electrode - Google Patents
A kind of preparation method of porous carbon electrode Download PDFInfo
- Publication number
- CN106783212A CN106783212A CN201611026419.XA CN201611026419A CN106783212A CN 106783212 A CN106783212 A CN 106783212A CN 201611026419 A CN201611026419 A CN 201611026419A CN 106783212 A CN106783212 A CN 106783212A
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- CN
- China
- Prior art keywords
- preparation
- foil
- bonding agent
- porous
- agent
- Prior art date
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
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- 238000004080 punching Methods 0.000 claims description 21
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 20
- 239000011888 foil Substances 0.000 claims description 15
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- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 5
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
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- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 3
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- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 claims description 3
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- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
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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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4691—Capacitive deionisation
-
- 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
- H01G11/26—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features
-
- 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
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Abstract
The present invention relates to a kind of preparation method of porous carbon electrode, it is comprised the following steps:(a)After conductive agent, bonding agent and porous charcoal are mixed, solvent and to starch to obtain electrode slurry;The mass ratio of the conductive agent, bonding agent and porous charcoal is 3 ~ 15:2~10:75~95;(b)The electrode slurry is overlayed on conducting matrix grain, is dried and is removed solvent;(c)By step(b)Product be placed in make bonding agent be in melting or semi-molten state at a temperature of, pressurization make the conductive agent, bonding agent and porous charcoal that active layer is formed on the conducting matrix grain.In can so avoiding conventional electrodes from preparing the problems such as incident shedding, poor adhesion, expansion;The method has the advantages that process is simple, steady quality, is particularly suitable for the activated carbon electrodes application and preparation in the directions such as ultracapacitor, condenser type sea water desalination.
Description
Technical field
The invention belongs to energy device electrode material field, and in particular to a kind of preparation method of porous carbon electrode.
Background technology
Many advantages, such as porous carbon material has considerable specific surface area, cheap and high commercial, is to make at present
It is the ultracapacitor and the electrode material of condenser type sea water desalination commonly used.Porous carbon material mainly includes activated carbon, carbon airsetting
Glue, active carbon fibre peacekeeping cellular glass state carbon etc..Traditional electrode of super capacitor is with the powdery porous charcoal of micron particles
Material is main body active material, and a certain proportion of additional conductive agent is added in addition(Such as carbon black, CNT)And binding agent(Such as
Polytetrafluoroethylene PTFE, Kynoar PVDF etc.)Prepared by way of sizing mixing-covering;But this method covered compares appearance
, there is layer of charcoal peeling, expansion, obscission sometimes in the electrolytic solution in easy shedding, has a strong impact on electrode performance.Or roll and be pressed into charcoal
Piece, is then compressed on conductive current collector(Skeleton)Go up or be bonded in conductive current collector, this method has used high level
PTFE etc., their energy-storage properties to electrode are not almost contributed, and cause electrode performance to decline yet.
The content of the invention
A kind of preparation method of porous carbon electrode is provided the invention aims to overcome the deficiencies in the prior art.
To solve above technical problem, a kind of technical scheme that the present invention takes is:A kind of preparation side of porous carbon electrode
Method, it is comprised the following steps:
(a)After conductive agent, bonding agent and porous charcoal are mixed, solvent and to starch to obtain electrode slurry;The conductive agent, bonding agent and
The mass ratio of porous charcoal is 3 ~ 15:2~10:75~95;
(b)The electrode slurry is overlayed on conducting matrix grain, is dried and is removed solvent;
(c)By step(b)Product be placed in make bonding agent be in melting or semi-molten state at a temperature of, pressurization make the conduction
Agent, bonding agent and porous charcoal form active layer on the conducting matrix grain.
Optimally, the bonding agent is selected from polypropylene, polyethylene, polyvinyl chloride, styrene acrylic, Ludox, silicon
Sour potassium, sodium metasilicate, phosphate, animal glue, casein, gum arabic, water-soluble poly vinyl acetate, water-soluble poly styrene, water
One or more composition in dissolubility phenolic resin, polyisobutene, polystyrene, polyacrylate, polyacrylonitrile and polyamide
Mixture.
Optimally, the ratio of the gross mass of the conductive agent, bonding agent and porous charcoal and the solvent quality is 1:0.5~
10。
Further, the viscosity of the electrode slurry is 1500 ~ 3500mPa s.
Further, the viscosity of the electrode slurry is adjusted by being added thereto to thickener, and the thickener is
Selected from carboxymethylcellulose calcium, sodium carboxymethylcellulose, potassium carboxymethylcellulose, alginic acid, sodium alginate, potassium alginate, hydroxypropyl
One or more mixing of composition in ylmethyl cellulose, hydroxypropyl methyl cellulose sodium and hydroxypropyl methyl cellulose potassium
Thing.
Optimally, the conductive agent be selected from graphite powder, acetylene black, chopped carbon fiber, CNT, Graphene, bronze,
One or more mixture of composition of silver powder, tantalum powder, conductive titanium oxide and ramet.
Optimally, the solvent is selected from water, methyl alcohol, ethanol, propyl alcohol, butanol, N-METHYLFORMAMIDE, N- crassitudes
Ketone, benzene, toluene, acetonitrile, Ethyl formate, ethyl acetate, acetone, butanone, cyclohexanone, fourth lactones, paraxylene, trichloro-benzenes, second
One or more mixture of composition in isoamyl valerate, decane, Carbon tetrachloride, chloroform and dimethyl sulfoxide.
Optimally, the conducting matrix grain is titanium net, covers carbon titanium net, stainless (steel) wire, covers carbon stainless steel net, stainless steel foil, punching
Hole stainless steel foil, nickel foil, punching nickel foil, nickel screen, aluminium foil, punching aluminium foil, aluminium net, Copper Foil, punching Copper Foil, copper mesh, silver foil, punching
Silver foil, silver-colored net, punching titanium-nickel alloy foil, Ti-Ni alloy, Ti-Ni alloy net, lead alloy-foil, punching lead alloy-foil, metal net,
Lead net, nickel foam or foam copper.
Optimally, the step(c)In, cooling down during pressurization or after pressurization makes the conductive agent, bonding agent, porous charcoal and leads
Electric skeleton secure bond.
Optimally, the step(c)In, bonding agent is in the temperature of melting or semi-molten state in the bonding agent
Between softening temperature and its highest melt temperature.
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art:Porous charcoal electricity of the present invention
The preparation method of pole, slurry is blended into porous charcoal addition conductive agent, bonding agent, slurry is overlayed on conducting matrix grain, then profit
Make slurry mix that the active layer being firmly combined with is formed on conducting matrix grain with the mode of bonding agent welding, can so avoid routine
In electrode preparation the problems such as incident shedding, poor adhesion, expansion;The method have process is simple, steady quality it is excellent
Point, is particularly suitable for the activated carbon electrodes application and preparation in the directions such as ultracapacitor, condenser type sea water desalination.
Specific embodiment
The preparation method of porous carbon electrode of the present invention, it is comprised the following steps:(a)By conductive agent, bonding agent and porous charcoal
After mixing, solvent and to starch to obtain electrode slurry;The mass ratio of the conductive agent, bonding agent and porous charcoal is 3 ~ 15:2~10:75~
95;(b)The electrode slurry is overlayed on conducting matrix grain, is dried and is removed solvent;(c)By step(b)Product be placed in and make bonding
At a temperature of agent is in melting or semi-molten state, pressurization makes the conductive agent, bonding agent and porous charcoal in the conducting matrix grain
Upper formation active layer.Slurry is blended into porous charcoal addition conductive agent, bonding agent, slurry is overlayed on conducting matrix grain, with
Make slurry mix that the active layer being firmly combined with is formed on conducting matrix grain using the mode of bonding agent welding afterwards, can so avoid
In conventional electrodes preparation the problems such as incident shedding, poor adhesion, expansion;The method has process is simple, steady quality
Advantage, be particularly suitable for the activated carbon electrodes application and preparation in the directions such as ultracapacitor, condenser type sea water desalination.
The bonding agent is preferably selected from polypropylene, polyethylene, polyvinyl chloride, styrene acrylic, Ludox, silicic acid
It is potassium, sodium metasilicate, phosphate, animal glue, casein, gum arabic, water-soluble poly vinyl acetate, water-soluble poly styrene, water-soluble
Property phenolic resin, polyisobutene, polystyrene, polyacrylate, polyacrylonitrile and polyamide in one or more composition
Mixture.The ratio of the gross mass of the conductive agent, bonding agent and porous charcoal and the solvent quality is preferably 1:0.5 ~ 10, with
Ensure that the viscosity of electrode slurry is in the preferred scopes of 1500 ~ 3500mPa s.The viscosity of the electrode slurry can by
Thickener is wherein added to be adjusted, the thickener is such as selected from carboxymethylcellulose calcium, carboxymethyl from those conventional
Sodium cellulosate, potassium carboxymethylcellulose, alginic acid, sodium alginate, potassium alginate, hydroxypropyl methyl cellulose, hydroxypropyl methyl
One or more mixture of composition in sodium cellulosate and hydroxypropyl methyl cellulose potassium.
The conductive agent is preferably selected from graphite powder, acetylene black, chopped carbon fiber, CNT, Graphene, bronze, silver
One or more mixture of composition of powder, tantalum powder, conductive titanium oxide and ramet, has with the porous carbon electrode for ensuring final
Good electric conductivity, to ensure performance when ultracapacitor, condenser type sea water desalination etc. are applied.And the solvent is using conventional
Those, such as selected from water, methyl alcohol, ethanol, propyl alcohol, butanol, N-METHYLFORMAMIDE, 1-METHYLPYRROLIDONE, benzene, toluene,
Acetonitrile, Ethyl formate, ethyl acetate, acetone, butanone, cyclohexanone, fourth lactones, paraxylene, trichloro-benzenes, isoamyl acetate, the last of the ten Heavenly stems
One or more mixture of composition in alkane, Carbon tetrachloride, chloroform and dimethyl sulfoxide, for dissolving or disperseing above-mentioned
Conductive agent, bonding agent, porous charcoal and thickener.
The conducting matrix grain is also those conventional, such as titanium net, cover carbon titanium net, stainless (steel) wire, cover carbon stainless steel net, stainless
Steel foil, punching stainless steel foil, nickel foil, punching nickel foil, nickel screen, aluminium foil, punching aluminium foil, aluminium net, Copper Foil, punching Copper Foil, copper mesh, silver
Paper tinsel, punching silver foil, silver-colored net, punching titanium-nickel alloy foil, Ti-Ni alloy, Ti-Ni alloy net, lead alloy-foil, punching lead alloy-foil, lead
Alloy network, lead net, nickel foam or foam copper, thickness are preferably 0.005 ~ 2mm.
Step(c)In, make bonding agent be in melting or semi-molten state temperature be in the bonding agent softening temperature with
And its between highest melt temperature, preferably 180 ~ 350 DEG C, can specifically be selected according to the material of bonding agent so that bonding
Agent is in melting and/or semi-molten state, such porous charcoal(Or referred to as activated carbon), the bonding agent particle around conductive agent fills
Divide welding, make have sufficient cementation between bonding agent and activated carbon granule, conductive agent particle and conducting matrix grain.During pressurization or
Cooling makes the conductive agent, bonding agent, porous charcoal and conducting matrix grain secure bond after pressurization, such as can use normal temperature when pressurizeing
Air is cooled down, or pressurized equipment is kept for 15 ~ 95 DEG C(Such as the transfer roller of water-cooled roll squeezer), or pressurization after be placed into normal temperature environment immediately
In, such chilling makes bonding agent reply solid-state, be also beneficial to keep while keeping its abundant welding to act on bonding agent with it is many
Hole charcoal particle, the well-bonded effect between conductive agent particle and conducting matrix grain.It is pre- that pressurization can reach the active layer to be formed
Fixed thickness, to reduce stomata, reduce the porosity that solvent volatilization is caused, gives full play to conductive agent between porous charcoal particle
And the electronics conduction between porous charcoal particle and conducting matrix grain.
The present invention is further described below in conjunction with embodiment.
Embodiment 1
The present embodiment provides a kind of preparation method of porous carbon electrode, comprises the following steps:
(a)Took the powdered activated carbon 95g of 400 mesh sieves, conductive agent acetylene black 3g, binding agent 2g(By polyethylene, styrene-acrylonitrile copolymer
Acid and Ludox in mass ratio 1:1:1 mixes)After mixing, with 50g paraxylene and the mixed liquor of trichloro-benzenes(Volume ratio 1:
1)Sized mixing as solvent ball milling mixing, obtain slurry;
(b)The carbon titanium net of covering that thickness is 0.2mm is pulled through above-mentioned slurry with pulp feeder, the slurry that thickness starches load is adjusted with scraper
Tape thickness is in 0.6mm or so;Slurry band dries more than 2h at 150 DEG C, removes solvent;
(c)Above-mentioned dried slurry band is heated to 200 DEG C, binding agent is in semi-molten state, then passed through water
Chilling roller press(Transfer roller temperature is kept for 95 DEG C)0.45mm or so is arrived in roll-in, obtains final product the porous carbon electrode for covering active layer.
The porous carbon electrode of above-mentioned preparation can be directly used as condenser type sea water desalination electrode, to cover carbon titanium net as leading
The activated carbon electrodes of electric skeleton can tolerate seawater corrosion and electrochemical corrosion.The condenser type sea water desalination experiment of the electrode assembling
Model machine, the condenser type sea water desalination that the electrode preparation method that carbon plate Nian Jie with PTFE is used is compressed on conductive current collector is assembled is tested
Model machine is compared, internal resistance reduction about more than 25%, and Seawater Treatment ability is significantly improved.
Embodiment 2
The present embodiment provides a kind of preparation method of porous carbon electrode, comprises the following steps:
(a)Powdered activated carbon 75g, the conductive agent acetylene black 15g and binding agent polypropylene 10g of 400 mesh sieves were taken, after three's mixing
Thickener sodium carboxymethylcellulose 0.2g is added, is sized mixing as solvent ball milling mixing with 500g isoamyl acetates and is obtained slurry, then
Viscosity to 1500mPa s is adjusted with sodium alginate;
(b)The nickel foam of thickness 2mm is pulled through above-mentioned slurry with pulp feeder, the slurry tape thickness that thickness starches load is adjusted with scraper
In 2.0mm or so;Slurry band is vacuum dried more than 12h at 60 DEG C, removes solvent;
(c)The above-mentioned disposed slurry band that dries is heated to 250 DEG C, binding agent is in semi-molten state, then passed through water-cooled
Roll squeezer(Transfer roller temperature is kept for 45 DEG C)0.7mm or so is arrived in roll-in, obtains final product the porous carbon electrode for covering active layer;
The activated carbon electrodes of above-mentioned preparation can be directly used as ultracapacitor carbon resistance rod, and with potassium hydroxide aqueous solution system
As electrolyte.The button ultracapacitor of the electrode assembling, carbon plate Nian Jie with PTFE is used is compressed on the electricity of conductive current collector
The button ultracapacitor of pole preparation method assembling is compared, internal resistance reduction about more than 50%.
Embodiment 3
The present embodiment provides a kind of preparation method of porous carbon electrode, comprises the following steps:
(a)Took activated carbon 95g, conductive agent acetylene black 3g and the binding agent 2g of 400 mesh sieves(By polystyrene, polyacrylate
In mass ratio 1:1 mixes)Mixing, with 100g chloroforms, cyclohexanone as mixed solvent(Volume ratio 1:1)As solvent
Ball milling mixing is sized mixing, and obtains slurry;Viscosity to 3500mPa s is adjusted with sodium alginate;
(b)The carbon titanium net of covering that thickness is 0.1mm is pulled through above-mentioned slurry with pulp feeder, the slurry that thickness starches load is adjusted with scraper
Tape thickness is in 0.5mm or so;Slurry band dries more than 2h in 110 DEG C of degree, removes solvent;
(c)Dried slurry band is heated to 200 DEG C, binding agent is in semi-molten state, then passed through water cooled rolls
Press(Transfer roller temperature is kept for 15 DEG C)Roll-in obtains final product the porous carbon electrode for covering active layer to 0.4mm or so;
The activated carbon electrodes of above-mentioned preparation can be directly used as condenser type sea water desalination electrode, to cover carbon titanium net as conductive bone
The activated carbon electrodes of frame can tolerate seawater corrosion and electrochemical corrosion.The condenser type sea water desalination experiment sample of the electrode assembling
Machine, the condenser type sea water desalination that the electrode preparation method that carbon plate Nian Jie with PTFE is used is compressed on conductive current collector is assembled tests sample
Machine is compared, internal resistance reduction about more than 30%, and Seawater Treatment ability is significantly improved.
Embodiment 4
The present embodiment provides a kind of preparation method of porous carbon electrode, comprises the following steps:
(a)Took the powdered activated carbon 85g of 400 mesh sieves, conductive agent acetylene black 9g and binding agent 6g(By polystyrene, polychlorostyrene second
Alkene, Ludox in mass ratio 1:1:1 mixes)Mixing, with 100g cyclohexanone and the mixed solvent of dimethylformamide(Volume
Than 8:2)Sized mixing as solvent ball milling mixing, obtain slurry;Viscosity is adjusted with thickener hydroxypropyl methyl cellulose sodium to arrive
2500mPa•s;
(b)The carbon titanium net of covering of thickness 0.2mm is pulled through above-mentioned slurry with pulp feeder, the slurry band that thickness starches load is adjusted with scraper
Thickness is in 0.6mm or so;Slurry band dries more than 2h at 120 DEG C, removes solvent;
(c)Dried slurry is heated to 180 DEG C, binding agent is in semi-molten state;Then passed through water-cooled roll-in
Machine(Transfer roller temperature is kept for 15 DEG C)0.4mm or so is arrived in roll-in, obtains final product the porous carbon electrode for covering active layer;
The activated carbon electrodes of above-mentioned preparation can be directly used as condenser type sea water desalination electrode, to cover carbon titanium net as conductive bone
The activated carbon electrodes of frame can tolerate seawater corrosion and electrochemical corrosion.The condenser type sea water desalination experiment sample of the electrode assembling
Machine, the condenser type sea water desalination that the electrode preparation method that carbon plate Nian Jie with PTFE is used is compressed on conductive current collector is assembled tests sample
Machine is compared, internal resistance reduction about more than 50%, and Seawater Treatment ability is significantly improved.
The above embodiments merely illustrate the technical concept and features of the present invention, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implement according to this that it is not intended to limit the scope of the present invention, all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (10)
1. a kind of preparation method of porous carbon electrode, it is characterised in that it is comprised the following steps:
(a)After conductive agent, bonding agent and porous charcoal are mixed, solvent and to starch to obtain electrode slurry;The conductive agent, bonding agent and
The mass ratio of porous charcoal is 3 ~ 15:2~10:75~95;
(b)The electrode slurry is overlayed on conducting matrix grain, is dried and is removed solvent;
(c)By step(b)Product be placed in make bonding agent be in melting or semi-molten state at a temperature of, pressurization make the conduction
Agent, bonding agent and porous charcoal form active layer on the conducting matrix grain.
2. the preparation method of porous carbon electrode according to claim 1, it is characterised in that:The bonding agent is selected from poly- third
Alkene, polyethylene, polyvinyl chloride, styrene acrylic, Ludox, potassium silicate, sodium metasilicate, phosphate, animal glue, casein, I
Uncle's natural gum, water-soluble poly vinyl acetate, water-soluble poly styrene, water soluble phenol resin, polyisobutene, polystyrene, poly- third
One or more mixture of composition in olefin(e) acid ester, polyacrylonitrile and polyamide.
3. the preparation method of porous carbon electrode according to claim 1, it is characterised in that:The conductive agent, bonding agent and
The ratio of the gross mass of porous charcoal and the solvent quality is 1:0.5~10.
4. the preparation method of the porous carbon electrode according to claim 1 or 3, it is characterised in that:The electrode slurry it is viscous
It is 1500 ~ 3500mPa s to spend.
5. the preparation method of porous carbon electrode according to claim 4, it is characterised in that:The viscosity of the electrode slurry is led to
Cross and be added thereto to thickener and be adjusted, the thickener is selected from carboxymethylcellulose calcium, sodium carboxymethylcellulose, carboxymethyl
Cellulose potassium, alginic acid, sodium alginate, potassium alginate, hydroxypropyl methyl cellulose, hydroxypropyl methyl cellulose sodium and hydroxypropyl
One or more mixture of composition in methylcellulose potassium.
6. the preparation method of porous carbon electrode according to claim 1, it is characterised in that:The conductive agent is selected from graphite
One kind of powder, acetylene black, chopped carbon fiber, CNT, Graphene, bronze, silver powder, tantalum powder, conductive titanium oxide and ramet
Or the mixture of various compositions.
7. the preparation method of porous carbon electrode according to claim 1, it is characterised in that:The solvent is selected from water, first
Alcohol, ethanol, propyl alcohol, butanol, N-METHYLFORMAMIDE, 1-METHYLPYRROLIDONE, benzene, toluene, acetonitrile, Ethyl formate, ethyl acetate,
Acetone, butanone, cyclohexanone, fourth lactones, paraxylene, trichloro-benzenes, isoamyl acetate, decane, Carbon tetrachloride, chloroform and two
One or more mixture of composition in first sulfoxide.
8. the preparation method of porous carbon electrode according to claim 1, it is characterised in that:The conducting matrix grain be titanium net,
Cover carbon titanium net, stainless (steel) wire, cover carbon stainless steel net, stainless steel foil, punching stainless steel foil, nickel foil, punching nickel foil, nickel screen, aluminium foil,
Punching aluminium foil, aluminium net, Copper Foil, punching Copper Foil, copper mesh, silver foil, punching silver foil, silver-colored net, punching titanium-nickel alloy foil, Ti-Ni alloy,
Ti-Ni alloy net, lead alloy-foil, punching lead alloy-foil, metal net, lead net, nickel foam or foam copper.
9. the preparation method of porous carbon electrode according to claim 1, it is characterised in that:The step(c)In, during pressurization
Or cooling makes the conductive agent, bonding agent, porous charcoal and conducting matrix grain secure bond after pressurization.
10. the preparation method of porous carbon electrode according to claim 1, it is characterised in that:The step(c)In, make to glue
Connect agent and be in the temperature of melting or semi-molten state between the bonding agent softening temperature and its highest melt temperature.
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CN112028184A (en) * | 2020-09-15 | 2020-12-04 | 赵玉平 | Preparation method of mesoporous titanium oxide hollow microsphere electrode material |
CN112047437A (en) * | 2020-09-15 | 2020-12-08 | 赵玉平 | Application of photoelectrode material in degradation of bisphenol-based propane wastewater |
CN112028184B (en) * | 2020-09-15 | 2022-11-01 | 江苏恒湾环保科技有限公司 | Preparation method of mesoporous titanium oxide hollow microsphere electrode material |
CN116135794A (en) * | 2021-11-18 | 2023-05-19 | 江苏新宜中澳环境技术有限公司 | Capacitive deionization electrode and preparation method and application thereof |
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