CN109830380A - A kind of electrode material for super capacitor, preparation method and application - Google Patents
A kind of electrode material for super capacitor, preparation method and application Download PDFInfo
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- CN109830380A CN109830380A CN201910123441.3A CN201910123441A CN109830380A CN 109830380 A CN109830380 A CN 109830380A CN 201910123441 A CN201910123441 A CN 201910123441A CN 109830380 A CN109830380 A CN 109830380A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 46
- 239000007772 electrode material Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- 229910000000 metal hydroxide Inorganic materials 0.000 claims abstract description 31
- 150000004692 metal hydroxides Chemical class 0.000 claims abstract description 31
- 239000010409 thin film Substances 0.000 claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 27
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 16
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000005406 washing Methods 0.000 claims abstract description 10
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 238000000967 suction filtration Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 3
- 239000006260 foam Substances 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 claims description 6
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical group Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 238000001291 vacuum drying Methods 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 claims description 4
- 230000008025 crystallization Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 4
- 238000009938 salting Methods 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 2
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 24
- 239000006258 conductive agent Substances 0.000 abstract description 10
- 239000000853 adhesive Substances 0.000 abstract description 9
- 230000001070 adhesive effect Effects 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000000017 hydrogel Substances 0.000 abstract description 3
- 229910021645 metal ion Inorganic materials 0.000 abstract description 3
- 239000007864 aqueous solution Substances 0.000 abstract description 2
- 238000005868 electrolysis reaction Methods 0.000 abstract description 2
- -1 generating complex Chemical compound 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000002484 cyclic voltammetry Methods 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 238000001027 hydrothermal synthesis Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- QYZBCWXZSYTIOY-UHFFFAOYSA-N Mercuric oxide Chemical compound [O-2].[Hg+2] QYZBCWXZSYTIOY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229940101209 mercuric oxide Drugs 0.000 description 1
- UKWHYYKOEPRTIC-UHFFFAOYSA-N mercury(II) oxide Inorganic materials [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 description 1
- 229910021518 metal oxyhydroxide Inorganic materials 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention belongs to field of nanometer material technology, specifically a kind of electrode material for super capacitor, preparation method and application.Preparation principle is: by the coordination using triethanolamine and metal ion, generating complex, triethanolamine has certain alkalinity in aqueous solution, and electrolysis can produce OH‑, complex and OH‑Effect generates metal hydroxides hydrogel.Preparation method is: the metal hydroxides hydrogel of generation is obtained metal hydroxide thin film after suction filtration, washing, drying, metal hydroxide thin film is cut into the size of needs, foam-metal current collector body is clipped among two panels foamed nickel current collector, it is pushed integrally in 5-20MPa pressure, the working electrode for supercapacitor has been made.The present invention provides a kind of electrode material for super capacitor, preparation method and application, this electrode material can be realized as the function of conventional Super capacitor without conductive agent and adhesive.
Description
Technical field
The invention belongs to the preparation field of electrode material for super capacitor, it is related to a kind of electrode material for super capacitor, system
Preparation Method and application.
Background technique
Supercapacitor is a kind of energy storage device between battery and capacitor.Since supercapacitor has
Efficiency for charge-discharge is high, power density is big, the features such as having extended cycle life, is environmental-friendly, be widely used in traffic, mobile communication,
The fields such as information technology, aerospace and science and techniques of defence.
Transition metal hydroxide is often chosen as excellent capacitor because it is with high specific capacitance and energy density
Material.Traditional supercapacitor is in preparation work electrode process, other than needing transition metal hydroxide, also needs to add
Enter conductive agent and adhesive, and the addition of adhesive can cause the increase of internal resistance to inhibit electron-transport, conductive agent and gluing
It is added that not only to will increase the weight of working electrode portable to cause capacitor heaviness to be not easy while agent, but also can be with super
The long-time service of capacitor be easy to cause falling off for conductive agent and adhesive, to influence the performance of capacitor.
Therefore need to develop a kind of electrode material for super capacitor that conductive agent and adhesive is not added.
Summary of the invention
For above-mentioned technical deficiency, the present invention provides a kind of electrode material for super capacitor, preparation method and
Using this electrode material can be realized conventional Super capacitor by conductive agent, adhesive and cross plating metal oxyhydroxide
Comprehensive performance.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
The first purpose of the invention is to provide a kind of preparation methods of electrode material for super capacitor, specifically include as follows
Step:
(1) by the metal salt concentration soluble in water that is made into for the salting liquid of 0.01-0.1mol/L；The metal salt is chlorination
The mixture of one or more of nickel, nickel nitrate, copper chloride or copper nitrate；
(2) triethanolamine is added in the salting liquid that step (1) is prepared and obtains mixed solution, wherein triethanolamine and gold
The molar ratio for belonging to ion is 3-24:1；
(3) mixed solution obtained by step (2) is fitted into reaction kettle, the crystallization 6-24h at 120~220 DEG C；
(4) metal hydroxide thin film will be obtained after the washing of crystallization product obtained by step (3), suction filtration, drying；
(5) preparation of foam-metal current collector body: successively using dilute hydrochloric acid, water, EtOH Sonicate washing foam metal, dry in vacuum
It is dry, obtain foam-metal current collector body；The foam metal is nickel foam or foam copper；
(6) metal hydroxide thin film in step (4) is clipped among two panels foam-metal current collector body, with tablet press machine plus
It is depressed into 5-20MPa, obtains electrode material for super capacitor.
Preferably, when preparing electrode material for super capacitor, the metal salt and the foam metal use same metal.
Preferably, the dry condition of step (4) are as follows: dry 6-8 hours at 40-60 DEG C
Preferably, the vacuum drying condition in step (5) are as follows: 3-5 hours dry at 50-80 DEG C of vacuum.
Preferably, foam-metal current collector type is cut into 2 × 2 × 0.4cm in step (5)3, then wash again.
Preferably, metal hydroxide thin film obtained by step (4) is cut into 1 × 1 × 0.1cm3Size, by step
(5) gained foam-metal current collector body is cut into 1 × 1 × 0.2cm3Size；Then the operation of step (6) is carried out again.
Preferably, application of the electrode material for super capacitor in preparation supercapacitor.
Compared with prior art, the beneficial effects of the present invention are:
(1) the present invention provides a kind of electrode material for super capacitor, preparation method and application, triethanolamine is utilized
(TEOA) and the coordination of metal ion generates complex, and triethanolamine has certain alkalinity in aqueous solution, and electrolysis can
Generate OH-, as temperature increases, coordination weakens, metal ion and OH-Effect generates metal hydroxides hydrogel, passes through
Reaction condition is controlled, metal hydroxide thin film material can be prepared.
(2) electrode material for super capacitor provided by the invention is easy to operate in preparation work electrode process, and material can
It is arbitrarily cut into required size, conductive agent and adhesive is not added, is directly sandwiched in two panels foam-metal current collector body made of the present invention
Centre is used after tablet press machine or roll squeezer direct tablet compressing in supercapacitor as the application of electrode material.
(3) working electrode obtained by metal hydroxides provided by the invention has good electricity in KOH electrolyte
Chemical property realizes excellent specific capacitance in three-electrode system, and under the conditions of 0.5A/g, specific capacitance reaches 2268F/g.It is one
Kind has the supercapacitor composite material of good capacitive property, has long-range meaning in terms of practical application.
Detailed description of the invention
Fig. 1 is the curling figure of metal hydroxide thin film material of the invention；
Fig. 2 is the stretching, extension figure of metal hydroxide thin film material of the invention；
Fig. 3 is that the SEM of metal hydroxide thin film material of the invention schemes；
Fig. 4 is the XRD diagram of metal hydroxide thin film material of the invention；
Fig. 5 is a kind of working electrode structure figure of electrode material for super capacitor preparation method of the invention；
Fig. 6 is a kind of cyclic voltammetry curve figure of electrode material for super capacitor of the invention under different scanning rates.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, to preferred embodiment and attached drawing 1-5 cooperation detailed description.
Embodiment 1
The preparation method of 1 metal hydroxide thin film material of the present embodiment, comprising the following steps:
The NiCl of precise 1mmol2·6H2O is added water 25mL, is put into magneton and 10min is stirred at room temperature, to
NiCl2·6H2All after dissolution, 9mmol triethanolamine is added dropwise in O, and after stirring 20min, obtained mixture is transferred to 50mL not
Hydro-thermal reaction is carried out in rust steel reaction kettle, hydrothermal temperature is 180 DEG C, and the hydro-thermal time is 12h.It takes out after reaction and cooling
To room temperature, centrifuge washing, 60 DEG C of vacuum drying 12h are to get metal hydroxide thin film material.
Embodiment 2
The preparation method of 2 metal hydroxide thin film material of the present embodiment, comprising the following steps:
The NiCl of precise 1mmol2·6H2O is added water 25mL, is put into magneton and 10min is stirred at room temperature, to
NiCl2·6H2All after dissolution, 12mmol triethanolamine is added dropwise in O, and after stirring 20min, obtained mixture is transferred to 50mL's
Hydro-thermal reaction is carried out in stainless steel cauldron, hydrothermal temperature is 180 DEG C, and the hydro-thermal time is 12h.It takes out after reaction and cold
But to room temperature, centrifuge washing, 60 DEG C of vacuum drying 12h are to get metal hydroxide thin film material.
Embodiment 3
The preparation method of 3 metal hydroxide thin film material of the present embodiment, comprising the following steps:
The NiCl of precise 1mmol2·6H2O is added water 25mL, is put into magneton and 10min is stirred at room temperature, to
NiCl2·6H2All after dissolution, 9mmol triethanolamine is added dropwise in O, and after stirring 20min, obtained mixture is transferred to 50mL not
Hydro-thermal reaction is carried out in rust steel reaction kettle, hydrothermal temperature is 180 DEG C, and the hydro-thermal time is 8h.It takes out and is cooled to after reaction
Room temperature, centrifuge washing, 60 DEG C of vacuum drying 12h are to get metal hydroxide thin film material.
Embodiment 4
The preparation method of 4 metal hydroxide thin film material of the present embodiment, comprising the following steps:
Precise 0.9mmol NiCl2·6H2O and 0.1mmol Cu (NO3)2·6H2O is added water 25mL, is put into magneton
10min is stirred at room temperature, to 0.9mmol NiCl2·6H2O and 0.1mmol Cu (NO3)2·6H2O all after dissolution, is added dropwise
After stirring 20min, it is anti-to be transferred to progress hydro-thermal in the stainless steel cauldron of 50mL by 12mmol triethanolamine for obtained mixture
It answers, hydrothermal temperature is 180 DEG C, and the hydro-thermal time is 12h.It takes out and is cooled to room temperature after reaction, centrifuge washing, 60 DEG C of vacuum
Dry 12h is to get metal hydroxide mixture thin-film material.
We carry out performance detection to it by taking metal hydroxide thin film material prepared by embodiment 1 as an example below,
In:
Fig. 1 and Fig. 2 is the photo of a kind of embodiment of metal hydroxide thin film, and as seen from Figure 1, embodiment 1 is made
Standby material has certain flexibility；As seen from Figure 1, through suction filtration, washing, it is dry after obtain it is more uniform, have it is certain thoroughly
Lightness and successional thin-film material.
Fig. 3 is the SEM figure of the metal hydroxide thin film in embodiment 1, as seen from Figure 2, prepared metallic hydrogen
Oxide film material has the nanometer chip architecture of ultra-thin 2D, is formed by countless small nano-particles self assembles.
Fig. 4 is the XRD diagram of the metal hydroxide thin film in the embodiment of the present invention 1, as seen from Figure 3 prepared film
Sample has β-Ni (OH)2The characteristic absorption peak of (JCPDS 00-014-0117), in 2 θ=33.3 °, 35.59 °, 38.6 °,
43.6 °, 51.8 °, 59.4 °, 62.5 °, 69.5 ° and 72.8 ° have characteristic absorption peak, show that thin-film material is β-Ni (OH)2。
Fig. 5 prepares photo for the working electrode that the embodiment of the present invention 1 is electrode material for super capacitor.Working electrode preparation
It is relatively simple, only material need to can be cut into 1 × 1 × 0.2cm3Size, is not added conductive agent and adhesive is directly sandwiched in two panels foam
Among nickel, use after tablet press machine or roll squeezer direct tablet compressing in supercapacitor as the application of electrode material.
We are also tested embodiment 3-5, they also have with the similar surface micro-structure feature of embodiment 1,
Ultra-thin 2D surface micro-structure feature possessed by the electrode material for super capacitor as prepared by embodiment 1-4, they can make
For the working electrode material in supercapacitor come using.
We are just with a kind of preparation of the working electrode of electrode material for super capacitor prepared by embodiment 1-4 below,
It is tested using performance of the cyclic voltammetry to supercapacitor.
Specific test condition are as follows: use platinum electrode as to electrode, mercuric oxide electrode is reference electrode and above-mentioned work electricity
Pole, electrolyte are 6mol KOH solution, voltage window 0-0.5V, sweep speed 5mV/S-100 mV/S.Embodiment 1- is implemented
Test result is as follows shown in table 1 as working electrode specific for the electrode material for super capacitor of example 4:
A kind of the performance test results for electrode material for super capacitor that 1 embodiment 1-4 of table is provided
As can be seen from Table 1, the electrode material for super capacitor of embodiment 1-4 preparation has in 6mol KOH electrolyte
There is excellent capacitive property.As can be seen that when current density is that 0.5A/g carries out charge and discharge, the embodiment of the present invention 1-4's
Specific capacitance can respectively reach 2025F/g, 1956F/g, 1525F/g and 1716 F/g.
Through detecting, in the prior art, when current density is that 1A/g carries out charge and discharge, porous Ni (OH)2Specific capacitance
It can reach 1842F/g, the Ni (OH) synthesized with hydro-thermal method2/ rGO is under the current density of 2A/g, specific capacitance 1224F/g, and one
In 6mol KOH electrolyte solution, specific capacitance exists the electrode material for super capacitor of the 2D or 3D structure of a little other method preparations
It can reach 1747F/g under the current density of 1A/g, from the point of view of 1 testing result of table is compared with the prior art, supercapacitor of the present invention
The current density needed is small, but the specific capacitance and the prior art that generate are very nearly the same, and the present invention is not necessarily to conductive agent and gluing
Agent.
In addition, we also further determine it and sweep in difference for the electrode material for super capacitor that embodiment 1 provides
Retouch the cyclic voltammetry curve figure under rate, Fig. 6 is the metal hydroxide thin film material that provides of embodiment 1 in different scanning rates
Under cyclic voltammetry curve figure (sweep speed is followed successively by 5mV/s, 10 mV/s, 20mV/s, 30mV/s, 50mV/ in the direction of the arrow
S, 80mV/s, 100mV/s.As seen from Figure 5, metal hydroxide thin film material exists a pair of symmetrical in the case where difference sweeps speed
Redox peaks, show that sample all has fake capacitance property.The position of oxidation peak and reduction peak becomes with the increase for sweeping speed
Change, with fast increase is swept, the area of redox peaks increases, and shows there is bigger capacitor in the case where height sweeps speed.
In conclusion the present invention provides not only a kind of preparation method of electrode material for super capacitor, and by inspection
It surveys, supercapacitor of the invention is fully able to substitute on practicability the traditional capacitor containing conductive agent and adhesive, because
This, has long-range meaning in terms of practical application.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.Embodiment described above is only to absolutely prove the present invention
And the preferred embodiment lifted, protection scope are without being limited thereto.Those skilled in the art institute on the basis of the present invention
The equivalent substitute or transformation of work, within the scope of the present invention, protection scope of the present invention is subject to claims.
Claims (9)
1. a kind of preparation method of electrode material for super capacitor, which is characterized in that specifically comprise the following steps:
(1) by the metal salt concentration soluble in water that is made into for the salting liquid of 0.01-0.1mol/L；The metal salt is nickel chloride, nitre
The mixture of one or more of sour nickel, copper chloride or copper nitrate；
(2) triethanolamine is added in the salting liquid that step (1) is prepared and obtains mixed solution, wherein triethanolamine and metal from
The molar ratio of son is 3-24:1；
(3) mixed solution obtained by step (2) is fitted into reaction kettle, the crystallization 6-24h at 120~220 DEG C；
(4) metal hydroxide thin film will be obtained after the washing of crystallization product obtained by step (3), suction filtration, drying；
(5) preparation of foam-metal current collector body: successively using dilute hydrochloric acid, water, EtOH Sonicate washing foam metal, be dried in vacuo,
Obtain foam-metal current collector body；The foam metal is nickel foam or foam copper；
(6) metal hydroxide thin film in step (4) is clipped among two panels foam-metal current collector body, is forced into tablet press machine
5-20MPa obtains electrode material for super capacitor.
2. a kind of preparation method of electrode material for super capacitor according to claim 1, which is characterized in that prepare super
When capacitor electrode material, the metal salt and the foam metal use same metal.
3. a kind of preparation method of electrode material for super capacitor according to claim 1, which is characterized in that step (4)
Dry condition are as follows: 6-8 hours dry at 40-60 DEG C.
4. a kind of preparation method of electrode material for super capacitor according to claim 1, which is characterized in that step (5)
In vacuum drying condition are as follows: dry 3-5 hours at 50-80 DEG C of vacuum.
5. a kind of preparation method of electrode material for super capacitor according to claim 1, which is characterized in that step (5)
The concentration of middle dilute hydrochloric acid is 0.1-1mol/L.
6. a kind of preparation method of electrode material for super capacitor according to claim 1, which is characterized in that step (5)
It is middle that foam-metal current collector type is cut into 2 × 2 × 0.4cm3, then wash again.
7. a kind of preparation method of electrode material for super capacitor according to claim 6, which is characterized in that by step
(4) gained metal hydroxide thin film is cut into 1 × 1 × 0.1cm3Size, foam-metal current collector body obtained by step (5) is cut
At 1 × 1 × 0.2cm3Size；Then the operation of step (6) is carried out again.
8. super capacitor made of a kind of any one of -7 preparation methods of electrode material for super capacitor according to claim 1
Device electrode material.
9. application of the electrode material for super capacitor in preparation supercapacitor according to claim 8.
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| CN201910123441.3A CN109830380B (en) | 2019-02-18 | 2019-02-18 | Super capacitor electrode material, preparation method and application |
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| CN201910123441.3A CN109830380B (en) | 2019-02-18 | 2019-02-18 | Super capacitor electrode material, preparation method and application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114496596A (en) * | 2022-02-16 | 2022-05-13 | 宝鸡文理学院 | Foamed nickel-NiO/MnO2Integrated electrode material, preparation method and application |
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| JP2012176888A (en) * | 2012-04-23 | 2012-09-13 | Univ Of Miyazaki | Nickel hydroxide nanosheet and manufacturing method thereof |
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| CN107452515A (en) * | 2017-03-08 | 2017-12-08 | 中南大学 | A kind of method that electrode of super capacitor is prepared based on nano silver wire |
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