CN109742405A - Adjustable flexible electrode material in aperture and the preparation method and application thereof - Google Patents
Adjustable flexible electrode material in aperture and the preparation method and application thereof Download PDFInfo
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- CN109742405A CN109742405A CN201811638211.2A CN201811638211A CN109742405A CN 109742405 A CN109742405 A CN 109742405A CN 201811638211 A CN201811638211 A CN 201811638211A CN 109742405 A CN109742405 A CN 109742405A
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Abstract
The invention discloses a kind of adjustable flexible electrode materials in aperture, the flexible electrode material is dual-network carbon structure, dual-network carbon structure includes level-one porous network carbon skeleton, second level porous network carbon skeleton is also filled in the hole of the level-one porous network carbon skeleton, the pore size of the flexible electrode material is 10~1500nm.The present invention correspondingly provides a kind of preparation method of adjustable flexible electrode material in above-mentioned aperture, application.Flexible electrode material of the invention has dual-network structure, can realize the adjusting of the pore size of flexible electrode material easily, provide good basis for subsequent other high active substances that further load of electrode material.In addition, in the present invention, flexible electrode material foldable ability flexible, elastic property, electrochemical performance.
Description
Technical field
The invention belongs to high molecular functional Material Field more particularly to a kind of flexible electrode material and preparation method thereof with
Using.
Background technique
Today's society, since the renewal speed of electronic product is increasingly accelerated, the energy storage device of flexible becomes present
The hot spot of scientific research gradually starts to be applied to because it has many advantages, such as light weight, flexible deformation, stability is good
The fields such as foldable electronic, aerospace, portable device.It is strong that the collector of conventional batteries is generally copper foil, aluminium foil etc.
Higher material is spent, easily causes the active ergastic substances being coated on material to fall off separation when bending, influences electricity
The electrochemical stability in pond, therefore it is not suitable for flexible battery.It all must be soft that flexible battery, which requires all material in battery,
Property flexible, including electrode and diaphragm material, and also to guarantee that flexible battery has excellent chemical property and circulation
Stability.
In order to meet the specific demand of flexible battery, it is necessary to find new material or be improved to current material and reached
To the performance of flexible foldable.Current some flexible electrode materials mostly use the materials such as graphene, carbon nanotube, manganese dioxide
It is obtained after being prepared into laminated film by the methods of suction filtration film forming, but there are some problems for these flexible electrode materials: (1) soft
Property electrode material is easily broken off after by multiple bending deformation, is affected to the overall performance of battery;(2) flexible electrode material
Pore size and size inside material cannot be effectively controlled, and can not load other efficient active matter materials in material internal
Material.Therefore, a kind of adjustable flexible electrode material in aperture is developed for promoting the development of flexible battery to be of great significance.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the shortcomings of to mention in background above technology and defect, one kind is provided
With Multi-network, the adjustable flexible electrode material in aperture and the preparation method and application thereof.In order to solve the above technical problems,
Technical solution proposed by the present invention are as follows:
A kind of adjustable flexible electrode material in aperture, the flexible electrode material are dual-network carbon structure, dual-network
Carbon structure includes level-one porous network carbon skeleton, is also filled with second level porous web in the hole of the level-one porous network carbon skeleton
Network carbon skeleton, the pore size of the flexible electrode material are 10~1500nm.
In above-mentioned electrode material, it is preferred that the level-one porous network carbon skeleton is carbonized by melamine sponge, institute
The pore size for stating melamine sponge is 50~100 μm, and the second level porous network carbon skeleton is by being filled in the melamine
The nano-cellulose of amine sponge pore interior is carbonized.
As a general technical idea, the present invention also provides a kind of preparations of above-mentioned adjustable flexible electrode material in aperture
Method, comprising the following steps:
(1) melamine sponge is immersed in nano-cellulose solution, and repeatedly squeezes melamine sponge, obtain nanometer
Cellulose/melamine sponge composite material;
(2) nano-cellulose obtained in step (2)/melamine sponge composite material freezed, be dried in vacuo
Processing obtains nano-cellulose/melamine sponge matrix material;
(3) under an inert atmosphere, nano-cellulose obtained in step (2)/melamine sponge matrix material is carried out
High temperature cabonization handles to arrive flexible electrode material.
In above-mentioned preparation method, it is preferred that in the step (1), the preparation method of nano-cellulose solution includes following
Step: taking nano cellulose sol, deploys nano-cellulose solution by ultrapure water, then ultrasound is broken in ultrasonic grind instrument
Broken 1~7min is to get to uniformly mixed nano-cellulose solution.
In above-mentioned preparation method, it is preferred that in the step (1), the thickness control of melamine sponge is 3~10mm.
Wherein, the thickness control of melamine sponge is that 3~10mm enters inside melamine sponge convenient for nano-cellulose.
In above-mentioned preparation method, it is preferred that the mass fraction control of the nano-cellulose solution is 0.1~0.5%, institute
Stating the pore size inside flexible electrode material is 300~1500nm;Or the mass fraction control of the nano-cellulose solution
It is 0.5~1.0%, the pore size inside the flexible electrode material is 10~300nm.The mass concentration pair of nano-cellulose
The aperture of flexible electrode material and chemical property have a great impact in the present invention, the mass fraction of nano-cellulose solution
It is too low, it will affect the chemical property of material, mass fraction is excessively high, and nano-cellulose is excessively sticky, in subsequent step, Nanowire
Dimension element is difficult to enter inside melamine sponge.
In above-mentioned preparation method, it is preferred that the mass fraction control of the nano-cellulose solution is 0.85~1.0%,
Pore size inside the flexible electrode material is 10~80nm.The mesoporous electrochemistry for carbon material in electrode material
Can influence it is most important, for the flexible electrode material, when control nano-cellulose solution mass fraction be 0.85~
When 1.0%, electrode material internal void intermediary hole (2~50nm) content is higher, can be very good the electrification for improving electrode material
Learn performance.
In above-mentioned preparation method, it is preferred that in the step (2), freezing, vacuum drying treatment when, cryogenic temperature be -50
~-30 DEG C, cooling time is 5~9h, when vacuum drying treatment, prior to -40~-20 DEG C at be dried in vacuo 5~9h, then at room temperature
Lower drying 12~for 24 hours.
In above-mentioned preparation method, it is preferred that when high temperature cabonization processing, control carburizing temperature is 700~1000 DEG C.It is logical
It crosses and thermal decomposition process, nano-cellulose is carried out to nano-cellulose/melamine sponge matrix material in this temperature range
It can thermally decompose with melamine sponge as carbon material, obtain with flexible, good conductivity, porous super capacitor electrode
Pole material.If temperature is lower than this temperature, because can not carbonization if obtained nano-cellulose/sponge compound matrix material
And electric conductivity and energy-storage property is caused to die down;If temperature is higher than this temperature, if nano-cellulose/sponge compound matrix material
It will appear part graphitization, so that so that integral material is become fragile leads to the reduction of compound matrix material flexible ability.
In above-mentioned preparation method, the technological parameter of freezing, vacuum drying treatment and high temperature cabonization processing is in the present invention
The performance of flexible electrode material has large effect, controls as the electrode material of the available high combination property of above-mentioned technological parameter
Material.
As a general technical idea, the present invention also provides a kind of application of above-mentioned flexible electrode material, using described
Flexible electrode material load high active substance obtains high activity electrode material, and the high active substance includes metal, metal oxidation
Object or high molecular polymer (such as polyaniline), the load capacity of the high active substance not less than 7% (after loading, high activity object
The amount of matter accounts for the percentage of electrode gross mass not less than 7%).By regulating and controlling the aperture of electrode material matrix, may be implemented in electricity
The compound or various sizes of active material of growth on the material of pole.Aperture hour can load the high molecular polymers material such as polyaniline
Material, can adsorb the materials such as the slightly larger metal of ruler diameter and its oxide, to realize different pore size for different work when aperture is big
The efficient absorption of property material and utilization.
Nano-cellulose is the degradable free of contamination macromolecule obtained by the cellulose in nature by nanotechnology
Material has very strong renewable and excellent biodegradability, due to the large specific surface area of nano-cellulose, small ruler
Very little effect increases, so having very strong chemical reactivity, after carbonization, still remains with above-mentioned property.Melamine sponge
It is a kind of novel foam of three-dimensional net structure for having high opening rate, there are the spies such as excellent elasticity, flexibility, high-specific surface area
Different performance can be applied in various fields such as aviation, electromechanics, electronic products, be had a vast market foreground.It is adsorbed by squeezing
Mode by nano-cellulose be implanted into melamine sponge inside, nano-cellulose pass through hydrogen bond, Van der Waals force the effects of power it is steady
Be scheduled on inside melamine and formed nano-cellulose network structure, can by control the mass fraction of nano-cellulose come pair
The aperture of composite inner carries out Effective Regulation, to obtain with dual-network structure, aperture is adjustable, flexible excellent one
The nano-electrode material of change.
Compared with the prior art, the advantages of the present invention are as follows:
1, flexible electrode material of the invention has dual-network structure, by the way that nano-cellulose is adsorbed on melamine
Inside sponge, nano-cellulose network structure is constructed in original network structure inside sponge, by controlling nano-cellulose
Concentration regulate and control the network structure and pore size of nano-cellulose inside sponge, can realize flexible electrode material easily
The adjusting of the pore size of material provides good basis for subsequent other high active substances that further load of electrode material.
2, in the present invention, skeleton structure of the melamine sponge as complex carbon material, by high temperature thermal decomposition at carbon materials
Elasticity and flexibility after material still have excellent mechanical property, impart flexible electrical in the present invention there is no being destroyed
The foldable ability of pole material flexibility and excellent elastic property.
3, the electrochemical performance of flexible electrode material of the present invention, melamine sponge inside are filled with nano-cellulose
Carbon material increases the contact area between electrode material and electrolyte, and contacting with each other between carbon material skeleton can mention
High inner conductive rate, so as to keep the chemical property of electrode material more excellent.In current density 1Ag-1When test
157.0Fg is reached as high as to its specific capacitance-1, about 4 times are improved for the specific capacitance of melamine sponge carbon material,
And there is very low resistance value, about 0.8 Ω or so.
4, preparation method of the invention is easy to operate, controllability is strong, and material plant fiber source is extensive, low in cost,
Meet Green Sustainable strategic objective.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the pictorial diagram of flexible electrode material in embodiment 1.
Fig. 2 is the microstructure electron microscope for the flexible electrode material being prepared in embodiment 3, comparative example 2 and embodiment 4
(b, c, d respectively correspond embodiment 3, comparative example 2 and embodiment 4).
Fig. 3 is the flexible foldable performance test figure for the flexible electrode material that embodiment 3 is prepared.
Fig. 4 is the cyclic voltammetry figure for the flexible electrode material being prepared in Examples 1 to 4 and comparative example 1.
Fig. 5 is that the flexible electrode material being prepared in embodiment 2 and comparative example 1 adsorbs MnO2Comparison diagram (a, b of particle
Respectively correspond embodiment 2 and comparative example 1).
Specific embodiment
To facilitate the understanding of the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete
Face meticulously describes, but the protection scope of the present invention is not limited to the following specific embodiments.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art
It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to the limitation present invention
Protection scope.
Unless otherwise specified, various raw material, reagent, the instrument and equipment etc. used in the present invention can pass through city
Field is commercially available or can be prepared by existing method.
Embodiment 1:
A kind of adjustable flexible electrode material in aperture, the flexible electrode material are dual-network carbon structure, dual-network carbon
Structure includes level-one porous network carbon skeleton, and second level porous network carbon bone is also filled in the hole of level-one porous network carbon skeleton
Frame.Wherein, level-one porous network carbon skeleton is carbonized by melamine sponge, and second level porous network carbon skeleton is by being filled in three
The nano-cellulose of poly cyanamid sponge pore interior is carbonized.The pore size of flexible electrode material in the present embodiment is about
500~1000nm.
The preparation method of the above-mentioned adjustable flexible electrode material in aperture, comprising the following steps:
(1) nano cellulose sol is taken, deploying nano-cellulose liquid quality fraction by ultrapure water is 0.1%, then
The ultrasonication 5min in ultrasonic grind instrument obtains uniformly mixed nano-cellulose solution;
(2) melamine sponge is obtained into the melamine sponge sheet with a thickness of 7mm by slicing treatment;
(3) the melamine sponge sheet in step (2) is put into step (1) in configured nano-cellulose solution,
Nano-cellulose is entered inside sponge by repeatedly squeezing sponge matrix, and it is multiple to obtain nano-cellulose/melamine sponge
Condensation material;
(4) freezing for nano-cellulose obtained in step (3)/melamine sponge composite material being placed in -30 DEG C is dry
Freeze 5h in dry machine, 5h be then dried in vacuo at -30 DEG C, is finally dried in vacuo 12h at room temperature, obtain nano-cellulose/
Melamine sponge matrix material;
(5) nano-cellulose obtained in step (4)/melamine sponge matrix material is placed in tube furnace, is led to
The adjustable flexibility in above-mentioned aperture can be obtained after the completion of 700 DEG C of progress high temperature thermal decomposition processing, carbonization after entering inert gas
Electrode material.
Fig. 1 is the pictorial diagram for the flexible electrode material being prepared in the present embodiment.As seen from the figure, the flexible electrode material
Morphological rules is easy to be assembled into supercapacitor as electrode material.
Embodiment 2:
A kind of adjustable flexible electrode material in aperture, the flexible electrode material are dual-network carbon structure, dual-network carbon
Structure includes level-one porous network carbon skeleton, and second level porous network carbon bone is also filled in the hole of level-one porous network carbon skeleton
Frame.Wherein, level-one porous network carbon skeleton is carbonized by melamine sponge, and second level porous network carbon skeleton is by being filled in three
The nano-cellulose of poly cyanamid sponge pore interior is carbonized.The pore size of flexible electrode material in the present embodiment is about
20~300nm.
The preparation method of the above-mentioned adjustable flexible electrode material in aperture, comprising the following steps:
(1) nano cellulose sol is taken, deploying nano-cellulose liquid quality fraction by ultrapure water is 0.5%, then
The ultrasonication 3min in ultrasonic grind instrument obtains uniformly mixed nano-cellulose solution;
(2) melamine sponge is obtained into the melamine sponge sheet with a thickness of 5mm by slicing treatment;
(3) the melamine sponge sheet in step (2) is put into step (1) in configured nano-cellulose solution,
Nano-cellulose is entered inside sponge by repeatedly squeezing sponge matrix, and it is multiple to obtain nano-cellulose/melamine sponge
Condensation material;
(4) freezing for nano-cellulose obtained in step (3)/melamine sponge composite material being placed in -40 DEG C is dry
Freeze 7h in dry machine, 7h be then dried in vacuo at -40 DEG C, is finally dried in vacuo 18h at room temperature, obtain nano-cellulose/
Melamine sponge matrix material;
(5) nano-cellulose obtained in step (4)/melamine sponge matrix material is placed in tube furnace, is led to
The adjustable flexibility in above-mentioned aperture can be obtained after the completion of 800 DEG C of progress high temperature thermal decomposition processing, charing after entering inert gas
Electrode material.
Embodiment 3:
A kind of adjustable flexible electrode material in aperture, the flexible electrode material are dual-network carbon structure, dual-network carbon
Structure includes level-one porous network carbon skeleton, and second level porous network carbon bone is also filled in the hole of level-one porous network carbon skeleton
Frame.Wherein, level-one porous network carbon skeleton is carbonized by melamine sponge, and second level porous network carbon skeleton is by being filled in three
The nano-cellulose of poly cyanamid sponge pore interior is carbonized.The pore size of flexible electrode material in the present embodiment is about
20~200nm.
The preparation method of the above-mentioned adjustable flexible electrode material in aperture, comprising the following steps:
(1) nano cellulose sol is taken, deploying nano-cellulose liquid quality fraction by ultrapure water is 0.8%, then
The ultrasonication 7min in ultrasonic grind instrument obtains uniformly mixed nano-cellulose solution;
(2) melamine sponge is obtained into the melamine sponge sheet with a thickness of 3mm by slicing treatment;
(3) the melamine sponge sheet in step (2) is put into step (1) in configured nano-cellulose solution,
Nano-cellulose is entered inside sponge by repeatedly squeezing sponge matrix, and it is multiple to obtain nano-cellulose/melamine sponge
Condensation material;
(4) freezing for nano-cellulose obtained in step (3)/melamine sponge composite material being placed in -50 DEG C is dry
Freeze 9h in dry machine, 9h be then dried in vacuo at -40 DEG C, be finally dried in vacuo at room temperature for 24 hours, obtain nano-cellulose/
Melamine sponge matrix material;
(5) nano-cellulose obtained in step (4)/melamine sponge matrix material is placed in tube furnace, is led to
The adjustable flexibility in above-mentioned aperture can be obtained after the completion of 1000 DEG C of progress high temperature thermal decomposition processing, charing after entering inert gas
Electrode material.
Fig. 2 (b) is the microstructure electron microscope for the flexible electrode material being prepared in embodiment.As seen from the figure, in sea
The lamellar structure for having nano-cellulose to be formed in continuous skeleton, this lamellar structure and sponge skeleton structure form sponge-Nanowire
Tie up dual structure.
Fig. 3 is the flexible foldable performance test figure for the flexible electrode material that the present embodiment is prepared.It is folding in left figure
Fold the flexible electrode material, right figure is the expanded view of the flexible electrode material after folding, it can be seen that by folding-expansion,
The form of the electrode material has no influence, and by repeatedly folding-expansion, form there is no variation, can be also used in
On flexible super capacitor electrode material.
Embodiment 4:
A kind of adjustable flexible electrode material in aperture, the flexible electrode material are dual-network carbon structure, dual-network carbon
Structure includes level-one porous network carbon skeleton, and second level porous network carbon bone is also filled in the hole of level-one porous network carbon skeleton
Frame.Wherein, level-one porous network carbon skeleton is carbonized by melamine sponge, and second level porous network carbon skeleton is by being filled in three
The nano-cellulose of poly cyanamid sponge pore interior is carbonized.The pore size of flexible electrode material in the present embodiment is about
10~80nm.
The preparation method of the above-mentioned adjustable flexible electrode material in aperture, comprising the following steps:
(1) nano cellulose sol is taken, deploying nano-cellulose liquid quality fraction by ultrapure water is 0.9%, then
The ultrasonication 7min in ultrasonic grind instrument obtains uniformly mixed nano-cellulose solution;
(2) melamine sponge is obtained into the melamine sponge sheet with a thickness of 9mm by slicing treatment;
(3) the melamine sponge sheet in step (2) is put into step (1) in configured nano-cellulose solution,
Nano-cellulose is entered inside sponge by repeatedly squeezing sponge matrix, and it is multiple to obtain nano-cellulose/melamine sponge
Condensation material;
(4) freezing for nano-cellulose obtained in step (3)/melamine sponge composite material being placed in -50 DEG C is dry
Freeze 9h in dry machine, 9h be then dried in vacuo at -40 DEG C, be finally dried in vacuo at room temperature for 24 hours, obtain nano-cellulose/
Melamine sponge matrix material;
(5) nano-cellulose obtained in step (4)/melamine sponge matrix material is placed in tube furnace, is led to
The adjustable flexibility in above-mentioned aperture can be obtained after the completion of 950 DEG C of progress high temperature thermal decomposition processing, charing after entering inert gas
Electrode material.
Fig. 2 (d) is the microstructure electron microscope for the flexible electrode material being prepared in embodiment.As seen from the figure, in sea
The lamellar structure for having nano-cellulose to be formed in continuous skeleton, this lamellar structure and sponge skeleton structure form sponge-Nanowire
Tie up dual structure.
Comparative example 1:
This comparative example directly by the melamine sponge sheet in embodiment 1 chilled, vacuum drying, at high temperature thermal decomposition
It manages to get flexible electrode material is arrived.The pore size of the flexible electrode material is 50~100 μm.
Fig. 4 is the cyclic voltammetry figure for the flexible electrode material being prepared in Examples 1 to 4 and comparative example 1, by scheming
It is found that the flexible electrode material in Examples 1 to 4 and comparative example 1 is in current density 1Ag-1When its electrochemical performance data such as
Shown in the following table 1, the specific capacitance of the flexible electrode material by nano-cellulose regulation is better than not regulating and controlling melamine sponge substrate
Specific capacitance.
Table 1: the specific capacitance contrast table of Examples 1 to 4 and 1 flexible electrode material of comparative example
Sample | Specific capacitance |
Comparative example 1 | 31.5F/g |
Embodiment 1 | 129.7F/g |
Embodiment 2 | 117.6F/g |
Embodiment 3 | 134.1F/g |
Embodiment 4 | 157.0F/g |
Fig. 5 (a) is to load MnO by hydro-thermal method using the flexible electrode material being prepared in embodiment 22After particle
Electron microscope, Fig. 5 (b) are to load MnO by hydro-thermal method using the flexible electrode material being prepared in this comparative example2After particle
Electron microscope, as seen from the figure, the MnO of the load in embodiment 22The amount (> 7%) of particle is significantly more than to be loaded in this comparative example
It measures (about 3% or so), the advantage in subsequent further application process of the flexible electrode material in embodiment 2 is more obvious.
Comparative example 2:
This comparative example compared with Example 1, the difference is that only that the mass fraction of nano-cellulose is 1.3%.This is soft
The pore size of property electrode material is about 40~80 μm.
Fig. 2 (c) is the microstructure electron microscope for the flexible electrode material being prepared in this comparative example.As seen from the figure, when
When nano-cellulose concentration is 1.3%, nano-cellulose is difficult to enter into inside sponge, to be unable to reach the internal aperture of regulation
Purpose.
Claims (10)
1. a kind of adjustable flexible electrode material in aperture, which is characterized in that the flexible electrode material is dual-network carbon structure,
Dual-network carbon structure includes level-one porous network carbon skeleton, is also filled with two in the hole of the level-one porous network carbon skeleton
Grade porous network carbon skeleton, the pore size of the flexible electrode material are 10~1500nm.
2. electrode material according to claim 1, which is characterized in that the level-one porous network carbon skeleton is by melamine
Sponge is carbonized, and the pore size of the melamine sponge is 50~100 μm, and the second level porous network carbon skeleton is by filling out
The nano-cellulose filled in the melamine sponge pore interior is carbonized.
3. a kind of preparation method of the adjustable flexible electrode material in aperture, which comprises the following steps:
(1) melamine sponge is immersed in nano-cellulose solution, and repeatedly squeezes melamine sponge, obtain nanofiber
Element/melamine sponge composite material;
(2) nano-cellulose obtained in step (2)/melamine sponge composite material is freezed, vacuum drying treatment
Obtain nano-cellulose/melamine sponge matrix material;
(3) under an inert atmosphere, nano-cellulose obtained in step (2)/melamine sponge matrix material is subjected to high temperature
Carbonization treatment to get arrive flexible electrode material.
4. preparation method according to claim 3, which is characterized in that in the step (1), the system of nano-cellulose solution
Preparation Method is the following steps are included: take nano cellulose sol, by ultrapure water allotment nano-cellulose solution, then in ultrasonic wave
1~7min of ultrasonication is in crusher to get to uniformly mixed nano-cellulose solution.
5. preparation method according to claim 3, which is characterized in that in the step (1), the thickness of melamine sponge
Control is 3~10mm.
6. preparation method according to claim 3, which is characterized in that the mass fraction of the nano-cellulose solution controls
It is 0.1~0.5%, the pore size inside the flexible electrode material is 300~1500nm;Or the nano-cellulose solution
Mass fraction control be 0.5~1.0%, the pore size inside the flexible electrode material is 10~300nm.
7. preparation method according to claim 6, which is characterized in that the mass fraction of the nano-cellulose solution controls
It is 0.85~1.0%, the pore size inside the flexible electrode material is 10~80nm.
8. the preparation method according to any one of claim 3~7, which is characterized in that in the step (2), freeze, is true
When sky is dried, cryogenic temperature is -50~-30 DEG C, and cooling time is 5~9h, when vacuum drying treatment, prior to -40~-20
At DEG C be dried in vacuo 5~9h, then at room temperature dry 12~for 24 hours.
9. the preparation method according to any one of claim 3~7, which is characterized in that when high temperature cabonization processing, control
Carburizing temperature processed is 700~1000 DEG C.
10. a kind of as claimed in claim 1 or 2 or preparation method as described in any one of claim 3~9 obtains flexibility
The application of electrode material, which is characterized in that obtain high activity electrode material using flexible electrode material load high active substance
Material, the high active substance includes metal, metal oxide or high molecular polymer, and the load capacity of the high active substance is not low
In 7%.
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Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2224879A1 (en) * | 1996-04-26 | 1997-11-06 | Toho Rayon Co., Ltd. | Cellulose sponge and method of producing the same |
CN103950917A (en) * | 2014-05-07 | 2014-07-30 | 北京理工大学 | Method for preparing porous carbon material |
CN105463628A (en) * | 2016-02-03 | 2016-04-06 | 中国石油大学(华东) | Preparation method of flexible porous carbon fiber |
CN106158428A (en) * | 2016-08-19 | 2016-11-23 | 南京林业大学 | A kind of method preparing linear supercapacitor electrode |
JP2016196526A (en) * | 2015-04-02 | 2016-11-24 | フタムラ化学株式会社 | Method for producing self-assembled cellulose film |
CN106188630A (en) * | 2016-07-11 | 2016-12-07 | 武汉纺织大学 | A kind of preparation method and applications based on cellulose sponge conducing composite material |
CN107128895A (en) * | 2017-05-31 | 2017-09-05 | 中南林业科技大学 | A kind of preparation method of high intensity network structure nanometer carrier material |
CN107189111A (en) * | 2016-11-23 | 2017-09-22 | 浙江美华鼎昌医药科技有限公司 | A kind of preparation method of cellulose composite sponge |
CN107610939A (en) * | 2017-08-24 | 2018-01-19 | 华南理工大学 | A kind of nano-cellulose base flexible composite electrode material and preparation method thereof |
CN108074751A (en) * | 2017-12-08 | 2018-05-25 | 中北大学 | A kind of flexible 3 D porous carbon materials and its preparation method and application |
CN108538617A (en) * | 2018-04-02 | 2018-09-14 | 中国科学院宁波材料技术与工程研究所 | A kind of preparation method of three-dimensional ordered polyporous material |
CN108559112A (en) * | 2018-03-20 | 2018-09-21 | 清远粤绿新材料技术有限公司 | A kind of preparation method of graphene-cellulose conductive composite film |
CN108686639A (en) * | 2018-03-30 | 2018-10-23 | 南方科技大学 | Three-dimensional netted carbon-based composite photo-catalyst of metal organic framework derived material-and preparation method thereof, purposes |
-
2018
- 2018-12-29 CN CN201811638211.2A patent/CN109742405B/en active Active
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2224879A1 (en) * | 1996-04-26 | 1997-11-06 | Toho Rayon Co., Ltd. | Cellulose sponge and method of producing the same |
CN103950917A (en) * | 2014-05-07 | 2014-07-30 | 北京理工大学 | Method for preparing porous carbon material |
JP2016196526A (en) * | 2015-04-02 | 2016-11-24 | フタムラ化学株式会社 | Method for producing self-assembled cellulose film |
CN105463628A (en) * | 2016-02-03 | 2016-04-06 | 中国石油大学(华东) | Preparation method of flexible porous carbon fiber |
CN106188630A (en) * | 2016-07-11 | 2016-12-07 | 武汉纺织大学 | A kind of preparation method and applications based on cellulose sponge conducing composite material |
CN106158428A (en) * | 2016-08-19 | 2016-11-23 | 南京林业大学 | A kind of method preparing linear supercapacitor electrode |
CN107189111A (en) * | 2016-11-23 | 2017-09-22 | 浙江美华鼎昌医药科技有限公司 | A kind of preparation method of cellulose composite sponge |
CN107128895A (en) * | 2017-05-31 | 2017-09-05 | 中南林业科技大学 | A kind of preparation method of high intensity network structure nanometer carrier material |
CN107610939A (en) * | 2017-08-24 | 2018-01-19 | 华南理工大学 | A kind of nano-cellulose base flexible composite electrode material and preparation method thereof |
CN108074751A (en) * | 2017-12-08 | 2018-05-25 | 中北大学 | A kind of flexible 3 D porous carbon materials and its preparation method and application |
CN108559112A (en) * | 2018-03-20 | 2018-09-21 | 清远粤绿新材料技术有限公司 | A kind of preparation method of graphene-cellulose conductive composite film |
CN108686639A (en) * | 2018-03-30 | 2018-10-23 | 南方科技大学 | Three-dimensional netted carbon-based composite photo-catalyst of metal organic framework derived material-and preparation method thereof, purposes |
CN108538617A (en) * | 2018-04-02 | 2018-09-14 | 中国科学院宁波材料技术与工程研究所 | A kind of preparation method of three-dimensional ordered polyporous material |
Non-Patent Citations (2)
Title |
---|
LIYUAN LI等: ""Flexible double-cross-linked cellulose-based hydrogel and aerogel membrane for supercapacitor separator"", 《J. MATER. CHEM. A》 * |
ZHENG ZHANG等: ""Ultralightweight and Flexible Silylated Nanocellulose Sponges for the Selective Removal of Oil from Water"", 《CHEM. MATER.》 * |
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