CN205863019U - A kind of pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure - Google Patents
A kind of pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure Download PDFInfo
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- CN205863019U CN205863019U CN201620874672.XU CN201620874672U CN205863019U CN 205863019 U CN205863019 U CN 205863019U CN 201620874672 U CN201620874672 U CN 201620874672U CN 205863019 U CN205863019 U CN 205863019U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/13—Energy storage using capacitors
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Abstract
This utility model relates to a kind of pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure, this electrode includes foam nickel base and is positioned at multiple cobalt sulfide nickel nano film thereon, described cobalt sulfide nickel nano film is connected with each other in cellular and every cobalt sulfide nickel nano film and is dispersed with multiple nano level hole, makes this electrode have three-dimensional classification nanostructure.Wherein, nanometer sheet is connected with each other in cellular, and this stable structure improves high rate performance and the cyclical stability of electrode；Multiple nanoscale cavities in nanometer sheet add the available active surface of electrode, thus improve the energy density of electrode, expand active material and the speed of action of electrolyte in electrode.This multilayer hierarchical structure makes this electrode have high specific capacity, good high rate performance and excellent cyclical stability.
Description
Technical field
This utility model belongs to electrode field, is specifically related to a kind of counterfeit electricity based on sulfuration nickel cobalt three-dimensional classification nanostructure
Container electrode.
Background technology
Ultracapacitor is because of the feature of its high power density, fast charging and discharging and cyclical stability, not only at consumer electricity
Sub-product scope, and in fields such as new-energy automobile, solar energy generating, intelligent grid, electric power, railway, communication, national defence
All exist and be widely applied.The exploitation of electrode material is the Main way of current supercapacitor technologies research, its electrode material
Charge storage directly determines the capacitance of electrochemical capacitance.It is compared to traditional material with carbon element class electrode material, transition metal
The electrode material such as oxide or hydroxide has higher charge storage.But, in actual applications, it has been found that,
Owing to the electrode material of transition metal oxide or hydroxide has the electric conductivity that it is low, cyclical stability is poor, energy density
Little, due to the existence of these defects, it is difficult to meet higher application demand in reality.Therefore transient metal sulfide is as one
High conductivity, the electrode material of high power capacity, have bigger application prospect.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of based on sulfuration nickel cobalt three-dimensional classification nanostructure counterfeit
Electrode for capacitors.
For reaching above-mentioned purpose, this utility model following technical scheme of offer:
A kind of pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure, described electrode includes foam nickel base
1 and multiple cobalt sulfide nickel nano films 2 of being positioned in described foam nickel base 1, the plurality of cobalt sulfide nickel nano film is connected with each other
It is dispersed with multiple nano level hole 3 in cellular and every cobalt sulfide nickel nano film.
Further, described foam nickel base 1 is in cellular, and pore-size distribution is 0.2～0.4mm, and surface density is 280 ± 25g/
m2, thickness is 1.6mm.
Further, the thickness of described cobalt sulfide nickel nano film 2 is 20～60nm.
Further, the thickness of described hole 3 is 1～3nm.
The beneficial effects of the utility model are: this utility model provides a kind of based on sulfuration nickel cobalt three-dimensional classifying nano
The pseudocapacitors electrode of structure, the multiple cobalt sulfide nickel nano films owing to being positioned in foam nickel base be connected with each other in cellular and
It is dispersed with multiple nano level hole on every cobalt sulfide nickel nano film, makes this electrode have three-dimensional classification nanostructure.Wherein,
Nanometer sheet is connected with each other in cellular, and this stable structure improves high rate performance and the cyclical stability of electrode；Nanometer sheet
On multiple nanoscale cavities add the available active surface of electrode, thus improve the energy density of electrode, expand electrode
Middle active material and the speed of action of electrolyte.This multilayer hierarchical structure makes this electrode have high specific capacity, good
High rate performance and excellent cyclical stability.Meanwhile, this technology for preparing electrode is simple and with low cost, has extremely strong industrialization
Prospect.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearer, this utility model provides as follows
Accompanying drawing illustrates:
Fig. 1 is pseudocapacitors electrode schematic diagram based on sulfuration nickel cobalt three-dimensional classification nanostructure；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Fig. 3 is the scanning electron microscope (SEM) photograph of pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure；
Fig. 4 is the transmission vulcanizing nickel cobalt nanometer sheet in pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure
Electronic Speculum figure；
Fig. 5 is the pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure specific volume under different electric current densities
Amount；
Fig. 6 is pseudocapacitors electrode cycle stability test figure based on sulfuration nickel cobalt three-dimensional classification nanostructure.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
The structure such as figure of a kind of based on sulfuration nickel cobalt three-dimensional classification nanostructure the pseudocapacitors electrode of embodiment 1～4
1, shown in Fig. 2 (enlarged drawing at A in Fig. 1), electrode includes foam nickel base 1 and is positioned in described foam nickel base 1 many
Individual cobalt sulfide nickel nano film 2, the plurality of cobalt sulfide nickel nano film is connected with each other in cellular and every cobalt sulfide nickel nano film
On be dispersed with multiple nano level hole 3, make this electrode have three-dimensional classification nanostructure.
Embodiment 1:
A kind of based on sulfuration nickel cobalt three-dimensional classification nanostructure the pseudocapacitors electrode of the present embodiment is made as follows
:
(1) nickel foam concentrated hydrochloric acid is soaked, more respectively with water and the oxidation of organic solvent washing scumming nickel surface
Thing and oils and fats；
(2) 0.1molNi (NO is weighed respectively3)2·6H2O、1molCo(NO3)2·6H2O、4.4mol Na2SO4It is dissolved in water-soluble
Liquid prepares mixed liquor；
(3) the mixed liquor addition in step (2) is reacted in the water heating kettle of nickel foam containing in (1) in steps, prepare
Containing the nickel foam of cobalt hydroxide nickel nano film, wherein, cobalt hydroxide nickel nano film is positioned in nickel foam and is connected with each other in honeybee
Nest shape；
(4) it is placed in step (3) prepares the nickel foam containing cobalt hydroxide nickel nano film in sodium sulfide solution in hydro-thermal
Still reacts, makes cobalt hydroxide nickel nano film be changed into cobalt sulfide nickel nano film, prepare containing cobalt sulfide nickel nano film
Nickel foam；
(5) nickel foam containing cobalt sulfide nickel nano film prepared in step (4) is placed in the alkali liquor of 6mol/L heating
To 60 DEG C, the time is 12h, makes cobalt sulfide nickel nano film multiple nano level holes occur.
Embodiment 2:
A kind of based on sulfuration nickel cobalt three-dimensional classification nanostructure the pseudocapacitors electrode of the present embodiment is made as follows
:
(1) nickel foam concentrated hydrochloric acid is soaked, more respectively with water and the oxidation of organic solvent washing scumming nickel surface
Thing and oils and fats；
(2) 1molNi (NO is weighed respectively3)2·6H2O、1molCo(NO3)2·6H2O、4mol Na2SO4It is dissolved in aqueous solution
Prepare mixed liquor；
(3) the mixed liquor addition in step (2) is reacted in the water heating kettle of nickel foam containing in (1) in steps, prepare
Containing the nickel foam of cobalt hydroxide nickel nano film, wherein, cobalt hydroxide nickel nano film is positioned in nickel foam and is connected with each other in honeybee
Nest shape；
(4) it is placed in step (3) prepares the nickel foam containing cobalt hydroxide nickel nano film in sodium sulfide solution in hydro-thermal
Still reacts, makes cobalt hydroxide nickel nano film be changed into cobalt sulfide nickel nano film, prepare containing cobalt sulfide nickel nano film
Nickel foam；
(5) nickel foam containing cobalt sulfide nickel nano film prepared in step (4) is placed in the alkali liquor of 10mol/L heating
To 100 DEG C, the time is 2h, makes cobalt sulfide nickel nano film multiple nano level holes occur.
Embodiment 3:
A kind of based on sulfuration nickel cobalt three-dimensional classification nanostructure the pseudocapacitors electrode of the present embodiment is made as follows
:
(1) nickel foam concentrated hydrochloric acid is soaked, more respectively with water and the oxidation of organic solvent washing scumming nickel surface
Thing and oils and fats；
(2) 1molNi (NO is weighed respectively3)2·6H2O、0.2molCo(NO3)2·6H2O、1.2mol Na2SO4It is dissolved in water-soluble
Liquid prepares mixed liquor；
(3) the mixed liquor addition in step (2) is reacted in the water heating kettle of nickel foam containing in (1) in steps, prepare
Containing the nickel foam of cobalt hydroxide nickel nano film, wherein, cobalt hydroxide nickel nano film is positioned in nickel foam and is connected with each other in honeybee
Nest shape；
(4) it is placed in step (3) prepares the nickel foam containing cobalt hydroxide nickel nano film in thiourea solution in water heating kettle
In react, make cobalt hydroxide nickel nano film be changed into cobalt sulfide nickel nano film, prepare containing the bubble of cobalt sulfide nickel nano film
Foam nickel；
(5) it is heated to step (4) preparing be placed in the alkali liquor of 8mol/L containing the nickel foam of cobalt sulfide nickel nano film
80 DEG C, the time is 5h, makes cobalt sulfide nickel nano film multiple nano level holes occur.
Embodiment 4:
A kind of based on sulfuration nickel cobalt three-dimensional classification nanostructure the pseudocapacitors electrode of the present embodiment is made as follows
:
(1) nickel foam concentrated hydrochloric acid is soaked, more respectively with water and the oxidation of organic solvent washing scumming nickel surface
Thing and oils and fats；
(2) 1mol Ni (NO is weighed respectively3)2·6H2O、0.1mol Co(NO3)2·6H2O、0.55mol Na2SO4It is dissolved in
Aqueous solution prepares mixed liquor；
(3) the mixed liquor addition in step (2) is reacted in the water heating kettle of nickel foam containing in (1) in steps, prepare
Containing the nickel foam of cobalt hydroxide nickel nano film, wherein, cobalt hydroxide nickel nano film is positioned in nickel foam and is connected with each other in honeybee
Nest shape；
(4) by step (3) prepares containing the nickel foam of cobalt hydroxide nickel nano film be placed in thioacetyl amine aqueous solution in
Water heating kettle reacts, makes cobalt hydroxide nickel nano film be changed into cobalt sulfide nickel nano film, prepare containing cobalt sulfide nickel nanometer
The nickel foam of sheet；
(5) nickel foam containing cobalt sulfide nickel nano film prepared in step (4) is placed in the alkali liquor of 6mol/L heating
To 60 DEG C, the time is 8h, makes cobalt sulfide nickel nano film multiple nano level holes occur.
Fig. 3 is the scanning electron microscope (SEM) photograph of pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure, as seen from the figure,
Cobalt sulfide nickel nano film is connected with each other in cellular, and its thickness distribution is 20～60nm.
Fig. 4 is the transmission vulcanizing nickel cobalt nanometer sheet in pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure
Electronic Speculum figure, is dispersed with multiple hole owing to understanding in sulfuration nickel cobalt nanometer sheet, and pore-size distribution is 1～3nm.
Fig. 5 is the pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure specific volume under different electric current densities
Amount, as can be seen from the figure under different electric current densities, the cobalt sulfide nickel electrode of multistage pore space structure is all than the sulfur without aperture
Change cobalt nickel electrode and there is higher specific capacity；At 1A g-1The specific volume of the cobalt sulfide nickel electrode of multistage pore space structure under electric current density
Amount is 4840.2F g-1, and cobalt sulfide nickel is only 2608.2F g-1, it is based on peak in cobalt sulfide nickel electrode at present.
Fig. 6 is pseudocapacitors electrode cycle stability test figure based on sulfuration nickel cobalt three-dimensional classification nanostructure, by scheming
Understand, 10A g under high electric current density-1, the pseudocapacitors electrode charge and discharge circulation of sulfuration nickel cobalt three-dimensional classification nanostructure
Still remain in more than 93% 5000 times, there is high stable charge/discharge.
Finally illustrating, preferred embodiment above is only in order to illustrate the technical solution of the utility model and unrestricted, to the greatest extent
This utility model is described in detail by pipe by above preferred embodiment, but those skilled in the art should manage
Solve, in the form and details it can be made various change, without departing from this utility model claims institute
The scope limited.
Claims (4)
1. a pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure, it is characterised in that: described electrode includes
Foam nickel base (1) and the multiple cobalt sulfide nickel nano films (2) being positioned in described foam nickel base (1), the plurality of cobalt sulfide
Nickel nano film is connected with each other in cellular and every cobalt sulfide nickel nano film and is dispersed with multiple nano level hole (3).
A kind of pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure, its feature
Being, described foam nickel base (1) is in cellular, and pore-size distribution is 0.2～0.4mm, and surface density is 280 ± 25g/m2, thickness
For 1.6mm.
A kind of pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure, its feature
Being, the thickness of described cobalt sulfide nickel nano film (2) is 20～60nm.
A kind of pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure, its feature
Being, the aperture of described hole (3) is 1～3nm.
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| CN201620874672.XU CN205863019U (en) | 2016-08-11 | 2016-08-11 | A kind of pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128783A (en) * | 2016-08-11 | 2016-11-16 | 中国科学院重庆绿色智能技术研究院 | A kind of pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure and preparation method thereof |
| CN107265521A (en) * | 2017-08-08 | 2017-10-20 | 卢荣红 | A kind of preparation method of the CoxNiyS nano materials as the empty battery of lithium |
-
2016
- 2016-08-11 CN CN201620874672.XU patent/CN205863019U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128783A (en) * | 2016-08-11 | 2016-11-16 | 中国科学院重庆绿色智能技术研究院 | A kind of pseudocapacitors electrode based on sulfuration nickel cobalt three-dimensional classification nanostructure and preparation method thereof |
| CN107265521A (en) * | 2017-08-08 | 2017-10-20 | 卢荣红 | A kind of preparation method of the CoxNiyS nano materials as the empty battery of lithium |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190321 Address after: 401329 Fengsheng Road, Jiulongpo District, Chongqing Patentee after: Chongqing Zhongke super capacity Technology Co., Ltd. Address before: 400714 No. 266 Fangzheng Road, Beibei District, Chongqing. Patentee before: Chongqing Institute of Green and Intelligent Technology of the Chinese Academy of Sciences |
|
| TR01 | Transfer of patent right |