CN109860527A - A kind of C-base composte material and preparation method thereof preparing cathode of lithium battery - Google Patents
A kind of C-base composte material and preparation method thereof preparing cathode of lithium battery Download PDFInfo
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- CN109860527A CN109860527A CN201811422226.5A CN201811422226A CN109860527A CN 109860527 A CN109860527 A CN 109860527A CN 201811422226 A CN201811422226 A CN 201811422226A CN 109860527 A CN109860527 A CN 109860527A
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Abstract
The present invention provides a kind of preparation method of C-base composte material for preparing cathode of lithium battery, it is characterized by comprising the following steps: the preparation of the hollow porous C u-Mo-O of step S1, the surface hollow porous C u-Mo-O step S2 is modified, step S3 high temperature cabonization, step S4 load.The invention also discloses the C-base composte materials for preparing cathode of lithium battery being prepared according to the preparation method.Preparation method is simple for the C-base composte material disclosed by the invention for preparing cathode of lithium battery, equipment is simple, and technique is controllable, and the C-base composte material theoretical specific capacity for preparing cathode of lithium battery and electric conductivity being prepared are higher, more preferably, cryogenic property is more preferable for stability.
Description
Technical field
The invention belongs to new forms of energy new material field of material technology, it is related to a kind of lithium battery material and preparation method thereof,
More particularly to a kind of C-base composte material and preparation method thereof for preparing cathode of lithium battery.
Background technique
With the fast development in the fields such as portable electronic device, space technology, power grid and electric car, people are to battery
Requirement become higher and higher, wherein high capacity, long circulation life, low cost and environmental-friendly novel lithium battery are developed into
One popular research field.Lithium battery has been widely used for various fields as the environmentally protective energy, but more or less
Existing poor cryogenic property, lower gram volume, for the first time coulombic efficiency and compacted density make it in Aeronautics and Astronautics and military affairs
The application of equal special dimensions is restricted.The main reason for causing this phenomenon is related with lithium cell cathode material, to lithium battery
Negative electrode material improves, be improve lithium ion diffusion rate, solve cryogenic property, improve gram volume, for the first time coulombic efficiency and
The key of compacted density.
As the main body of storage lithium, negative electrode material plays critically important effect in lithium ion battery, and capacity is to influence electricity
One of an important factor for tankage, performance directly affect the battery capacity and service life cycle of lithium ion battery.Currently, quotient
The lithium ion battery of product mainly uses graphite or modified graphite as negative electrode material.The embedding lithium capacity of theory of this kind of negative electrode material
It is lower, and irreversible loss is big for the first time, multiplying power discharging property is poor, in addition, the solvent of part can also follow in lithium ion insertion
Insertion, is easy to happen structural damage.Modified graphite is primarily introduced into nonmetallic, metal or surface treatment etc..Pass through these
Method of modifying can effectively improve the stability of lithium ion structure in telescopiny, and then improve electrochemical stability,
But method of modifying in the prior art is harsh to the synthesis condition of material, the material synthesized easily occur the contraction of volume with
Expand and then can cause the destruction of electrode structure.
In recent years, the nano transition metal oxides used as lithium cell cathode material are due to its higher theoretical specific volume
Amount, and capacity retention ratio is high, causes the extensive concern of researchers, but this kind of transition metal oxide material is in lithium ion
Biggish volume expansion and contraction change are had during insertion and abjection, so as to cause the dusting of electrode material, Jin Eryu
Collector loses electrical contact, the cycle performance of the such material of strong influence and application.Secondly, with traditional graphite cathode
Material is compared, these materials have poor electron conductivity.
Therefore, it develops a kind of with stable theoretical specific capacity and electric conductivity with higher, the high lithium of capacity retention ratio
Cell negative electrode material accords with the demands of the market, and has extensive market value and application prospect.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of C-base composte material for preparing cathode of lithium battery
And preparation method thereof, preparation method is simple for this, and equipment is simple, and technique is controllable, and the C-base composte material being prepared is theoretical
Specific capacity and electric conductivity are higher, and more preferably, cryogenic property is more preferable for stability.
The present invention can be achieved through the following technical solutions:
The preparation method of the C-base composte material according to the present invention for preparing cathode of lithium battery, which is characterized in that packet
Include following steps:
The preparation of the hollow porous C u-Mo-O of step S1: glucose, mantoquita, molybdenum salt are add to deionized water, and mixing is equal
It is even to obtain mixed liquor, mixed liquor is added in hydrothermal reaction kettle, carries out hydro-thermal reaction 20-25 hours at 180-220 DEG C, instead
It is centrifuged after answering, is placed in drying 18-24 hours in 100-110 DEG C of vacuum oven, then in air with 5-10 DEG C/minute
The heating rate of clock is warming up at 600-700 DEG C, then is calcined 6-8 hours at this temperature, is removed carbon elimination core, is obtained hollow porous
Cu-Mo-O；
The surface hollow porous C u-Mo-O step S2 is modified: hollow porous C u-Mo-O points will be prepared by step S1
It dissipates in organic solvent, then acrylic acid iron, 2,4,6- trivinyl boroxins, three (2- methoxy ethoxies) is added thereto
Vinyl silanes, 1,2,2- trifluoro vinyl tri-phenyl-silanes, initiator are stirring at normal temperature 3-5 hours, rear to be centrifuged, and are placed in nitrogen
Under gas or atmosphere of inert gases, be 200-250nm with wavelength ultraviolet light irradiation 20-30 minutes；It is hollow more to obtain surface modification
Hole Cu-Mo-O；
Step S3 high temperature cabonization: by the modified hollow porous C u-Mo-O in the surface obtained by step S2 first in air atmosphere
Heating rate in enclosing with 2-5 DEG C/min is heated to 700-1000 DEG C of carbonization 1-3 hours, obtains intermediate；
Step S4 load: the intermediate, the carbon-based material that are prepared by step S3 are uniformly mixed, are used to prepare
The C-base composte material of cathode of lithium battery.
Preferably, glucose described in step S1, mantoquita, molybdenum salt, deionized water mass ratio be (3-5): 1:1:(20-
40)。
Preferably, the mantoquita is selected from one or more of copper chloride, copper nitrate, copper carbonate.
Preferably, the molybdenum salt is selected from one or more of molybdenum chloride, molybdenum trisulfate, nitric acid molybdenum.
Preferably, hollow porous C u-Mo-O, organic solvent, acrylic acid iron, 2 described in step S2,4,6- triethylene basic rings
Boroxane, three (2- methoxy ethoxy) vinyl silanes, 1,2,2- trifluoro vinyl tri-phenyl-silane, initiator mass ratio
It is 1:(5-10): 0.02:0.01:0.03:0.02:0.01.
Preferably, the organic solvent is selected from one or more of ethyl alcohol, ethylene glycol, tetrahydrofuran；The initiator
Selected from one of benzoin ethyl ether, 2- hydroxy-2-methyl -1- phenylacetone, benzoin isopropyl ether, benzoin isobutyl ether or several
Kind.
Preferably, the inert gas is selected from one of helium, neon, argon gas.
Preferably, intermediate described in step S4, carbon-based material mass ratio be 1:(5-8).
Preferably, the carbon-based material is selected from one or more of carbon nanotube, fullerene, expansible graphite.
A kind of C-base composte material preparing lithium cell cathode material prepares the carbon-based of lithium cell cathode material using above-mentioned
The preparation method of composite material is prepared.
Compared with the prior art, the invention has the benefit that
(1) preparation method of the C-base composte material disclosed by the invention for preparing cathode of lithium battery, it is simple and easy, equipment according to
Lai Xing little, technique is controllable, high-efficient, and production cost is low, green non-pollution, is suitable for large-scale production.
(2) C-base composte material disclosed by the invention for preparing cathode of lithium battery, avoids traditional lithium cell cathode material
Cryogenic property existing for more or less, gram volume, coulombic efficiency is low for the first time, and synthesis condition is harsh, and the material synthesized easily goes out
The technological deficiency of the contraction and the destruction for expanding and then causing electrode structure of existing volume, has theoretical specific capacity and electric conductivity more
Height, stability more preferably, the more preferable advantage of cryogenic property.
(3) C-base composte material disclosed by the invention for preparing cathode of lithium battery, is compounded with transition metal oxide, alloy
The advantages of material and carbon-based material, introduces iron, silicon, fluorine, boron isoreactivity ingredient by modification, is conducive to improve negative electrode material electricity
Chemical property.
Specific embodiment
In order that those skilled in the art will better understand the technical solution of the present invention, below with reference to embodiment to this hair
Bright product is described in further detail.
The raw material being related in the embodiment of the present invention is purchased from Aladdin Reagent Company.
Embodiment 1
A kind of preparation method for the C-base composte material preparing cathode of lithium battery, which comprises the steps of:
The preparation of the hollow porous C u-Mo-O of step S1: by glucose 30g, copper chloride 10g, molybdenum chloride 10g be added to from
It in sub- water 200g, is uniformly mixed and obtains mixed liquor, mixed liquor is added in hydrothermal reaction kettle, it is anti-that hydro-thermal is carried out at 180 DEG C
Answer 20 hours, be centrifuged after reaction, be placed in 100 DEG C of vacuum oven it is 18 hours dry, then in air with 5 DEG C/
The heating rate of minute is warming up at 600 DEG C, then is calcined 6 hours at this temperature, is removed carbon elimination core, is obtained hollow porous C u-Mo-
O；
The surface hollow porous C u-Mo-O step S2 is modified: the hollow porous C u-Mo-O that will be prepared by step S1
10g is scattered in ethyl alcohol 50g, then acrylic acid iron 0.2g, 2,4,6- trivinyl boroxin 0.1g, three (2- are added thereto
Methoxy ethoxy) vinyl silanes 0.3g, 1,2,2- trifluoro vinyl tri-phenyl-silane 0.2g, benzoin ethyl ether 0.1g, often
Temperature stirring 3 hours, it is rear to be centrifuged, it is placed under nitrogen atmosphere, ultraviolet light irradiation 20 minutes for being 200nm with wavelength；Obtain surface
Modified hollow porous C u-Mo-O；
Step S3 high temperature cabonization: by the modified hollow porous C u-Mo-O in the surface obtained by step S2 first in air atmosphere
700 DEG C are heated to 2 DEG C/min of heating rate in enclosing to be carbonized 1 hour, obtain intermediate；
Step S4 load: the intermediate 10g, the carbon nanotube 50g that are prepared by step S3 are uniformly mixed, used
In the C-base composte material for preparing cathode of lithium battery.
A kind of C-base composte material preparing lithium cell cathode material prepares the carbon-based of lithium cell cathode material using above-mentioned
The preparation method of composite material is prepared.
By the C-base composte material obtained for preparing lithium cell cathode material, Super P and Kynoar PVDF by matter
Amount is uniformly mixed than 8:1:1, then instills N-Methyl pyrrolidone solution (NMP) inside, uniform stirring is at sticky paste
Then viscous fluid is evenly coated on copper foil by viscous fluid by coating machine, the copper foil coated is (de- for 24 hours in 100 DEG C of vacuum drying
Except nmp solvent and a small amount of residual moisture), it is cooled to room temperature taking-up, the disk that diameter is 14cm is made in copper foil with slicer
After be compacted, be used as cathode pole piece.2016 button cells are assembled into the glove box full of argon gas again.By assembled electricity
With the circle of 0.1C rate charge-discharge 100 on LAND battery test system, measuring specific discharge capacity is about 940mAh/g in pond.
Embodiment 2
A kind of preparation method for the C-base composte material preparing cathode of lithium battery, which comprises the steps of:
The preparation of the hollow porous C u-Mo-O of step S1: by glucose 35g, copper nitrate 10g, molybdenum trisulfate 10g be added to from
It in sub- water 250g, is uniformly mixed and obtains mixed liquor, mixed liquor is added in hydrothermal reaction kettle, it is anti-that hydro-thermal is carried out at 190 DEG C
Answer 21 hours, be centrifuged after reaction, be placed in 102 DEG C of vacuum oven it is 19 hours dry, then in air with 6 DEG C/
The heating rate of minute is warming up at 620 DEG C, then is calcined 6.5 hours at this temperature, is removed carbon elimination core, is obtained hollow porous C u-
Mo-O；
The surface hollow porous C u-Mo-O step S2 is modified: the hollow porous C u-Mo-O that will be prepared by step S1
10g is scattered in ethylene glycol 65g, then acrylic acid iron 0.2g, 2,4,6- trivinyl boroxin 0.1g, three are added thereto
(2- methoxy ethoxy) vinyl silanes 0.3g, 1,2,2- trifluoro vinyl tri-phenyl-silane 0.2g, 2- hydroxy-2-methyl-
1- phenylacetone 0.1g, it is stirring at normal temperature 3.5 hours, rear to be centrifuged, it is placed under helium atmosphere atmosphere, the purple for being 210nm with wavelength
Outer light irradiates 22 minutes；Obtain the modified hollow porous C u-Mo-O in surface；
Step S3 high temperature cabonization: by the modified hollow porous C u-Mo-O in the surface obtained by step S2 first in air atmosphere
800 DEG C are heated to 3 DEG C/min of heating rate in enclosing to be carbonized 1.5 hours, obtain intermediate；
Step S4 load: the intermediate 10g, the fullerene 60g that are prepared by step S3 are uniformly mixed, are used for
Prepare the C-base composte material of cathode of lithium battery.
A kind of C-base composte material preparing lithium cell cathode material prepares the carbon-based of lithium cell cathode material using above-mentioned
The preparation method of composite material is prepared.
By the C-base composte material obtained for preparing lithium cell cathode material, Super P and Kynoar PVDF by matter
Amount is uniformly mixed than 8:1:1, then instills N-Methyl pyrrolidone solution (NMP) inside, uniform stirring is at sticky paste
Then viscous fluid is evenly coated on copper foil by viscous fluid by coating machine, the copper foil coated is (de- for 24 hours in 100 DEG C of vacuum drying
Except nmp solvent and a small amount of residual moisture), it is cooled to room temperature taking-up, the disk that diameter is 14cm is made in copper foil with slicer
After be compacted, be used as cathode pole piece.2016 button cells are assembled into the glove box full of argon gas again.By assembled electricity
With the circle of 0.1C rate charge-discharge 100 on LAND battery test system, measuring specific discharge capacity is about 942mAh/g in pond.
Embodiment 3
A kind of preparation method for the C-base composte material preparing cathode of lithium battery, which comprises the steps of:
The preparation of the hollow porous C u-Mo-O of step S1: by glucose 40g, copper carbonate 10g, nitric acid molybdenum 10g be added to from
It in sub- water 300g, is uniformly mixed and obtains mixed liquor, mixed liquor is added in hydrothermal reaction kettle, it is anti-that hydro-thermal is carried out at 200 DEG C
Answer 23 hours, be centrifuged after reaction, be placed in 105 DEG C of vacuum oven it is 22 hours dry, then in air with 8 DEG C/
The heating rate of minute is warming up at 660 DEG C, then is calcined 7 hours at this temperature, is removed carbon elimination core, is obtained hollow porous C u-Mo-
O；
The surface hollow porous C u-Mo-O step S2 is modified: the hollow porous C u-Mo-O that will be prepared by step S1
10g is scattered in tetrahydrofuran 80g, then acrylic acid iron 0.2g, 2,4,6- trivinyl boroxin 0.1g, three are added thereto
(2- methoxy ethoxy) vinyl silanes 0.3g, 1,2,2- trifluoro vinyl tri-phenyl-silane 0.2g, benzoin isopropyl ether
0.1g, it is stirring at normal temperature 4 hours, rear to be centrifuged, it is placed under neon atmosphere, ultraviolet light irradiation 25 minutes for being 230nm with wavelength；?
To the modified hollow porous C u-Mo-O in surface；
Step S3 high temperature cabonization: by the modified hollow porous C u-Mo-O in the surface obtained by step S2 first in air atmosphere
900 DEG C are heated to 3 DEG C/min of heating rate in enclosing to be carbonized 2 hours, obtain intermediate；
Step S4 load: the intermediate 10g, the expansible graphite 70g that are prepared by step S3 are uniformly mixed, obtained
It is used to prepare the C-base composte material of cathode of lithium battery.
A kind of C-base composte material preparing lithium cell cathode material prepares the carbon-based of lithium cell cathode material using above-mentioned
The preparation method of composite material is prepared.
By the C-base composte material obtained for preparing lithium cell cathode material, Super P and Kynoar PVDF by matter
Amount is uniformly mixed than 8:1:1, then instills N-Methyl pyrrolidone solution (NMP) inside, uniform stirring is at sticky paste
Then viscous fluid is evenly coated on copper foil by viscous fluid by coating machine, the copper foil coated is (de- for 24 hours in 100 DEG C of vacuum drying
Except nmp solvent and a small amount of residual moisture), it is cooled to room temperature taking-up, the disk that diameter is 14cm is made in copper foil with slicer
After be compacted, be used as cathode pole piece.2016 button cells are assembled into the glove box full of argon gas again.By assembled electricity
With the circle of 0.1C rate charge-discharge 100 on LAND battery test system, measuring specific discharge capacity is about 945mAh/g in pond.
Embodiment 4
A kind of preparation method for the C-base composte material preparing cathode of lithium battery, which comprises the steps of:
The preparation of the hollow porous C u-Mo-O of step S1: glucose 45g, mantoquita 10g, molybdenum salt 10g are added to deionized water
It in 350g, is uniformly mixed and obtains mixed liquor, mixed liquor is added in hydrothermal reaction kettle, hydro-thermal reaction 24 is carried out at 210 DEG C
Hour, it is centrifuged after reaction, is placed in drying 23 hours in 108 DEG C of vacuum oven, then in air with 9 DEG C/min
Heating rate be warming up at 680 DEG C, then at this temperature calcine 7.5 hours, remove carbon elimination core, obtain hollow porous C u-Mo-O；
The mantoquita is the mixture that copper chloride, copper nitrate, copper carbonate 1:2:1 in mass ratio are mixed；The molybdenum salt be molybdenum chloride,
The mixture that molybdenum trisulfate, nitric acid molybdenum 2:3:1 in mass ratio are mixed；
The surface hollow porous C u-Mo-O step S2 is modified: the hollow porous C u-Mo-O that will be prepared by step S1
10g is scattered in organic solvent 95g, then acrylic acid iron 0.2g, 2,4,6- trivinyl boroxin 0.1g, three are added thereto
(2- methoxy ethoxy) vinyl silanes 0.3g, 1,2,2- trifluoro vinyl tri-phenyl-silane 0.2g, initiator 0.1g, room temperature
Stirring 4.5 hours, it is rear to be centrifuged, it is placed under argon atmosphere, ultraviolet light irradiation 28 minutes for being 240nm with wavelength；Obtain surface
Modified hollow porous C u-Mo-O；The organic solvent is that ethyl alcohol, ethylene glycol, tetrahydrofuran 1:3:2 in mass ratio are mixed
Mixture；The initiator is benzoin ethyl ether, 2- hydroxy-2-methyl -1- phenylacetone, benzoin isopropyl ether, styrax fourth
The mixture that ether 1:1:3:2 in mass ratio is mixed；
Step S3 high temperature cabonization: by the modified hollow porous C u-Mo-O in the surface obtained by step S2 first in air atmosphere
950 DEG C are heated to 4 DEG C/min of heating rate in enclosing to be carbonized 2.5 hours, obtain intermediate；
Step S4 load: the intermediate 10g, the carbon-based material 78g that are prepared by step S3 are uniformly mixed, used
In the C-base composte material for preparing cathode of lithium battery；The carbon-based material is carbon nanotube, fullerene, expansible graphite by quality
The mixture mixed than 3:2:5.
A kind of C-base composte material preparing lithium cell cathode material prepares the carbon-based of lithium cell cathode material using above-mentioned
The preparation method of composite material is prepared.
By the C-base composte material obtained for preparing lithium cell cathode material, Super P and Kynoar PVDF by matter
Amount is uniformly mixed than 8:1:1, then instills N-Methyl pyrrolidone solution (NMP) inside, uniform stirring is at sticky paste
Then viscous fluid is evenly coated on copper foil by viscous fluid by coating machine, the copper foil coated is (de- for 24 hours in 100 DEG C of vacuum drying
Except nmp solvent and a small amount of residual moisture), it is cooled to room temperature taking-up, the disk that diameter is 14cm is made in copper foil with slicer
After be compacted, be used as cathode pole piece.2016 button cells are assembled into the glove box full of argon gas again.By assembled electricity
With the circle of 0.1C rate charge-discharge 100 on LAND battery test system, measuring specific discharge capacity is about 947mAh/g in pond.
Embodiment 5
A kind of preparation method for the C-base composte material preparing cathode of lithium battery, which comprises the steps of:
The preparation of the hollow porous C u-Mo-O of step S1: by glucose 50g, copper carbonate 10g, molybdenum chloride 10g be added to from
It in sub- water 400g, is uniformly mixed and obtains mixed liquor, mixed liquor is added in hydrothermal reaction kettle, it is anti-that hydro-thermal is carried out at 220 DEG C
Answer 25 hours, be centrifuged after reaction, be placed in 110 DEG C of vacuum oven it is 24 hours dry, then in air with 10 DEG C/
The heating rate of minute is warming up at 700 DEG C, then is calcined 8 hours at this temperature, is removed carbon elimination core, is obtained hollow porous C u-Mo-
O；
The surface hollow porous C u-Mo-O step S2 is modified: the hollow porous C u-Mo-O that will be prepared by step S1
10g is scattered in tetrahydrofuran 100g, then thereto be added acrylic acid iron 0.2g, 2,4,6- trivinyl boroxin 0.1g,
Three (2- methoxy ethoxy) vinyl silanes 0.3g, 1,2,2- trifluoro vinyl tri-phenyl-silane 0.2g, benzoin isobutyl ether
0.1g, it is stirring at normal temperature 5 hours, rear to be centrifuged, it is placed under nitrogen atmosphere, ultraviolet light irradiation 30 minutes for being 250nm with wavelength；?
To the modified hollow porous C u-Mo-O in surface；
Step S3 high temperature cabonization: by the modified hollow porous C u-Mo-O in the surface obtained by step S2 first in air atmosphere
1000 DEG C are heated to 5 DEG C/min of heating rate in enclosing to be carbonized 3 hours, obtain intermediate；
Step S4 load: the intermediate 10g, the fullerene 80g that are prepared by step S3 are uniformly mixed, are used for
Prepare the C-base composte material of cathode of lithium battery.
A kind of C-base composte material preparing lithium cell cathode material prepares the carbon-based of lithium cell cathode material using above-mentioned
The preparation method of composite material is prepared.
By the C-base composte material obtained for preparing lithium cell cathode material, Super P and Kynoar PVDF by matter
Amount is uniformly mixed than 8:1:1, then instills N-Methyl pyrrolidone solution (NMP) inside, uniform stirring is at sticky paste
Then viscous fluid is evenly coated on copper foil by viscous fluid by coating machine, the copper foil coated is (de- for 24 hours in 100 DEG C of vacuum drying
Except nmp solvent and a small amount of residual moisture), it is cooled to room temperature taking-up, the disk that diameter is 14cm is made in copper foil with slicer
After be compacted, be used as cathode pole piece.2016 button cells are assembled into the glove box full of argon gas again.By assembled electricity
With the circle of 0.1C rate charge-discharge 100 on LAND battery test system, measuring specific discharge capacity is about 948mAh/g in pond.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (10)
1. a kind of preparation method for the C-base composte material for preparing cathode of lithium battery, which comprises the steps of:
The preparation of the hollow porous C u-Mo-O of step S1: glucose, mantoquita, molybdenum salt are add to deionized water, and are uniformly mixed
To mixed liquor, mixed liquor is added in hydrothermal reaction kettle, is carried out hydro-thermal reaction 20-25 hours at 180-220 DEG C, reaction knot
It is centrifuged after beam, is placed in drying 18-24 hours in 100-110 DEG C of vacuum oven, then in air with 5-10 DEG C/min
Heating rate is warming up at 600-700 DEG C, then is calcined 6-8 hours at this temperature, is removed carbon elimination core, is obtained hollow porous C u-Mo-
O；
The surface hollow porous C u-Mo-O step S2 is modified: dispersing the hollow porous C u-Mo-O being prepared by step S1 in
In organic solvent, then acrylic acid iron, 2,4,6- trivinyl boroxins, three (2- methoxy ethoxy) ethylene are added thereto
Base silane, 1,2,2- trifluoro vinyl tri-phenyl-silanes, initiator are stirring at normal temperature 3-5 hours, rear to be centrifuged, be placed in nitrogen or
Under atmosphere of inert gases, be 200-250nm with wavelength ultraviolet light irradiation 20-30 minutes；Obtain the modified hollow porous C u- in surface
Mo-O；
Step S3 high temperature cabonization: by the modified hollow porous C u-Mo-O in the surface obtained by step S2 first in air atmosphere
It is heated to 700-1000 DEG C of carbonization 1-3 hours with 2-5 DEG C/min of heating rate, obtains intermediate；
Step S4 load: the intermediate, the carbon-based material that are prepared by step S3 are uniformly mixed, and obtain being used to prepare lithium electricity
The C-base composte material of pond cathode.
2. a kind of preparation method of C-base composte material for preparing cathode of lithium battery according to claim 1, feature exist
In the mass ratio of, glucose described in step S1, mantoquita, molybdenum salt, deionized water be (3-5): 1:1:(20-40).
3. a kind of preparation method of C-base composte material for preparing cathode of lithium battery according to claim 1, feature exist
In the mantoquita is selected from one or more of copper chloride, copper nitrate, copper carbonate.
4. a kind of preparation method of C-base composte material for preparing cathode of lithium battery according to claim 1, feature exist
In the molybdenum salt is selected from one or more of molybdenum chloride, molybdenum trisulfate, nitric acid molybdenum.
5. a kind of preparation method of C-base composte material for preparing cathode of lithium battery according to claim 1, feature exist
In, hollow porous C u-Mo-O, organic solvent, acrylic acid iron, 2 described in step S2,4,6- trivinyl boroxins, three (2-
Methoxy ethoxy) vinyl silanes, 1,2,2- trifluoro vinyl tri-phenyl-silane, initiator mass ratio be 1:(5-10):
0.02:0.01:0.03:0.02:0.01。
6. a kind of preparation method of C-base composte material for preparing cathode of lithium battery according to claim 1, feature exist
In the organic solvent is selected from one or more of ethyl alcohol, ethylene glycol, tetrahydrofuran；The initiator is selected from styrax second
One or more of ether, 2- hydroxy-2-methyl -1- phenylacetone, benzoin isopropyl ether, benzoin isobutyl ether.
7. a kind of preparation method of C-base composte material for preparing cathode of lithium battery according to claim 1, feature exist
In the inert gas is selected from one of helium, neon, argon gas.
8. a kind of preparation method of C-base composte material for preparing cathode of lithium battery according to claim 1, feature exist
In the mass ratio of, intermediate described in step S4, carbon-based material be 1:(5-8).
9. a kind of preparation method of C-base composte material for preparing cathode of lithium battery according to claim 1, feature exist
In the carbon-based material is selected from one or more of carbon nanotube, fullerene, expansible graphite.
10. according to claim 1 a kind of preparation method preparation of the C-base composte material for preparing cathode of lithium battery described in -9 and
At the C-base composte material for preparing lithium cell cathode material.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101238166A (en) * | 2005-07-01 | 2008-08-06 | 金文申有限公司 | Process for production of porous reticulated composite materials |
| CN104716335A (en) * | 2013-12-15 | 2015-06-17 | 中国科学院大连化学物理研究所 | Electrode for liquid flow batteries, preparation and application |
| CN104835961A (en) * | 2015-05-27 | 2015-08-12 | 厦门大学 | Transition metal sulfide coated with carbon, preparation method and application |
| CN106410221A (en) * | 2016-12-08 | 2017-02-15 | 天津工业大学 | Method for preparing nanowire sheet intercalated structure supported type direct alcohol fuel cell catalyst |
| WO2018068035A1 (en) * | 2016-10-07 | 2018-04-12 | Kratos LLC | Graphite and group iva composite particles and methods of making |
| CN108807862A (en) * | 2017-05-03 | 2018-11-13 | 溧阳天目先导电池材料科技有限公司 | A kind of silicon based composite material and preparation method thereof, negative material and lithium battery |
-
2018
- 2018-11-27 CN CN201811422226.5A patent/CN109860527B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101238166A (en) * | 2005-07-01 | 2008-08-06 | 金文申有限公司 | Process for production of porous reticulated composite materials |
| CN104716335A (en) * | 2013-12-15 | 2015-06-17 | 中国科学院大连化学物理研究所 | Electrode for liquid flow batteries, preparation and application |
| CN104835961A (en) * | 2015-05-27 | 2015-08-12 | 厦门大学 | Transition metal sulfide coated with carbon, preparation method and application |
| WO2018068035A1 (en) * | 2016-10-07 | 2018-04-12 | Kratos LLC | Graphite and group iva composite particles and methods of making |
| CN106410221A (en) * | 2016-12-08 | 2017-02-15 | 天津工业大学 | Method for preparing nanowire sheet intercalated structure supported type direct alcohol fuel cell catalyst |
| CN108807862A (en) * | 2017-05-03 | 2018-11-13 | 溧阳天目先导电池材料科技有限公司 | A kind of silicon based composite material and preparation method thereof, negative material and lithium battery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111453773A (en) * | 2020-04-10 | 2020-07-28 | 陶健君 | Lithium battery negative electrode material and preparation method thereof |
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