CN107393622A - A kind of graphene Asia titanium oxide combined conductive agent and preparation method thereof - Google Patents
A kind of graphene Asia titanium oxide combined conductive agent and preparation method thereof Download PDFInfo
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- CN107393622A CN107393622A CN201710501278.0A CN201710501278A CN107393622A CN 107393622 A CN107393622 A CN 107393622A CN 201710501278 A CN201710501278 A CN 201710501278A CN 107393622 A CN107393622 A CN 107393622A
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- H—ELECTRICITY
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- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/04—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon or silicon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
- H01B1/08—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances oxides
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- H—ELECTRICITY
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- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
Abstract
The present invention relates to a kind of graphene Asia titanium oxide combined conductive agent, the graphene Asia titanium oxide combined conductive agent includes grapheme material and modified sub- titania meterial, the sub- titania meterial of modification is sub- titania meterial by polymer alcohol or polyalcohol modified obtained, the surface of the sub- titania meterial of modification carries oh group, and the oh group that the grapheme material is carried by the surface of the sub- titania meterial of modification is and closely compound with the sub- titania meterial of modification.The present invention also provides a kind of preparation method of graphene Asia titanium oxide combined conductive agent.
Description
Technical field
The present invention relates to a kind of grapheme material, more particularly to a kind of graphene-sub- titanium oxide combined conductive agent and its system
Preparation Method.
Background technology
Graphene is sp2The two dimensional crystal material of hydridization monoatomic layer, it has unique electricity, machinery, thermal property.
The electron mobility of graphene at normal temperatures is more than 15000cm2/ Vs, higher than CNT and silicon crystal, its resistivity only has
10-6Ω m, it is the minimum material of the resistivity being currently known.Since graphene is found, for its excellent characteristic, people
Carried out it is a series of probe into work, such as using the preferable printing opacity of graphene, thermal conductivity, by graphene be used for manufacture touch-screen,
Tabula rasa；Using graphene high electron mobility speed, using graphene as battery energy storage device conducts additive etc., therefore graphene
Have broad application prospects.
Sub- titania meterial has good electric conductivity and higher chemistry and electrochemical stability at room temperature, with height
Conductive Carbon Materials change, wherein Ti in same magnitude, its electrical conductivity with n value changes4O7Electric conductivity is best, and conductance is up to
1500S·cm-1.In addition the density of sub- titania meterial is smaller, is advantageous to the lightweight of product, improves electrochemical energy storing device
Compare energy.The alveolate texture and its high-specific surface area of sub- titania meterial, it can be advantageous to improve active material utilization；Its is excellent
Elegant chemical stability and resistance to corrosion, can be stabilized, therefore sub- titania meterial is one in strong acid and strong base environment
The new material that kind can be applied in a variety of chemical energy storage devices.
The Chinese patent of Application No. 201010593157.1 discloses a kind of preparation side of graphene composite conductive powder
Method, graphene conductive powder is prepared by graphene oxide.Although the composite conductive powder dispersiveness that this method obtains is
Improve, but its electric conductivity is relatively low, and powder is still easily reunited in a solvent, is not easy to disperse, preparation technology process is more, takes
It is long, therefore it is unfavorable for large-scale industrialized production and application.
The content of the invention
In view of this, the present invention provides a kind of high graphene-sub- titanium oxide combined conductive agent of electric conductivity and its preparation
Method, to solve prior art problem.
The present invention provides a kind of graphene-sub- titanium oxide combined conductive agent, the graphene-sub- titanium oxide combined conductive agent
Including grapheme material and modified sub- titania meterial, the sub- titania meterial of modification is that sub- titania meterial passes through polymer
Alcohol or it is polyalcohol modified obtain, the surface of the sub- titania meterial of modification carries oh group, and the grapheme material passes through
Oh group that the surface of the sub- titania meterial of modification carries and it is closely compound with the sub- titania meterial of modification.
The present invention also provides a kind of preparation method of graphene-sub- titanium oxide combined conductive agent, and it comprises the following steps：
(1) sub- titania meterial, modifying agent are mixed with water, modified sub- titania slurry is prepared, wherein, it is described to change
Property agent is polymer alcohol or polyalcohol；
(2) grapheme material is dispersed in water to obtain graphene slurry, then by graphene slurry with being modified sub- titanium oxide
Slurry is mixed, and composite mortar is obtained by self assembly；And
(3) composite mortar is dried, obtains graphene-sub- titanium oxide combined conductive agent.
Compared with prior art, it is as follows the advantages of graphene of the present invention-sub- titanium oxide combined conductive agent：
First, the surface of the sub- titania meterial of modification carries oh group.The grapheme material can pass through the hydroxyl
Base group and the surface for being self-assembled to modified sub- titanium oxide, therefore the grapheme material can pass through the modified sub- oxidation titanium
Oh group that the surface of material carries and it is closely compound with the sub- titania meterial of modification.
Second, barrier is formed by the sub- titania meterial of modification between the grapheme material, thus effectively prevent stone
The stacking of black alkene lamella and reunion, improve the dispersion effect and utilization rate of grapheme material.
3rd, because the sub- titania meterial of modification has good stability and electric conductivity, because obtained from graphene-
Sub- titanium oxide combined conductive agent has excellent stability and electric conductivity.
The preparation method of the graphene-sub- titanium oxide combined conductive agent has that technique is simple, easily operated, suitable for production
The advantages of industryization is applied.
Brief description of the drawings
Fig. 1 is the stereoscan photograph of graphene-sub- titanium oxide combined conductive agent prepared by embodiment 1.
Embodiment
Graphene provided by the invention-sub- titanium oxide combined conductive agent and preparation method thereof will be made furtherly below
It is bright.
The present invention provides a kind of graphene-sub- titanium oxide combined conductive agent.The graphene-sub- titanium oxide combined conductive agent
Including grapheme material and modified sub- titania meterial.The sub- titania meterial of modification is that sub- titania meterial passes through polymer
Alcohol polyalcohol modified obtains.The surface of the sub- titania meterial of modification carries oh group.The grapheme material passes through
Oh group that the surface of the sub- titania meterial of modification carries and it is closely compound with the sub- titania meterial of modification.
For the structure of the grapheme material without special limitation, it is micro- that it can include graphene nanometer sheet, graphene
Rice piece, graphene nanobelt, few layer graphene (2-5 layers), multi-layer graphene (2-9 layers), graphene quantum dot, chemical modification stone
Black alkene (graphene oxide, redox graphene) and the derivative of these graphite alkenes materials).The grapheme material
Definition can be found in document " Allinthegraphenefamily-Arecommendednomenclaturefortwo-
dimensionalcarbon materials”.The grapheme material is also selected from thickness≤20nm, it is highly preferred that thickness
≤ 10nm material.In the present embodiment, the grapheme material thickness preferably≤3nm, grapheme material is thinner, and pliability is got over
It is good, more it is easily worked.The preparation method of the grapheme material is unlimited, using graphene product well known to those skilled in the art
Or prepared by conventional preparation method.The graphite that the preferred Ningbo Mo Xi Science and Technology Ltd.s of grapheme material of the present invention provide
Alkene product.Grapheme material can be in chemical oxidization method such as Brodie methods, Hummers methods or Staudenmaier methods appoint
Graphene oxide prepared by a kind of method of anticipating can also select mechanical stripping, liquid phase to shell through grapheme material made from thermal expansion
From or preparing graphene by electrochemical stripping material, the same present invention can also use graphene oxide or other are chemically modified
Grapheme material.
The sub- titania meterial is Ti4O7、Ti3O5、Ti5O9In one kind.The micro-shape of the sub- titania meterial
It is unlimited, can be at least one of powdered, bar-shaped, ceramics shape, cellular.
The polyalcohol is pentaerythrite, ethylene glycol, propane diols, butanediol, hexylene glycol, neopentyl glycol, two contracting diethyls two
Alcohol, dipropylene glycol, at least one of trimethylolpropane and glycerine, the polymer alcohol are polyethylene glycol, polyvinyl alcohol
At least one of.
The mass ratio of the grapheme material and sub- titania meterial is 1：(0.1~10).Preferably, grapheme material with
The mass ratio of modified sub- titania meterial is 1：(0.5~5).
The present invention provides a kind of preparation method of graphene-sub- titanium oxide combined conductive agent, and it includes following steps：
S1, sub- titania meterial, modifying agent are mixed with water, modified sub- titania slurry is prepared, wherein, it is described to change
Property agent is polymer alcohol or polyalcohol；
S2, grapheme material is dispersed in water to obtain graphene slurry, then by graphene slurry with being modified sub- titanium oxide
Slurry is mixed, and composite mortar is obtained by self assembly；And
S3, the composite mortar is dried, obtain graphene-sub- titanium oxide combined conductive agent.
In step sl, the sub- titania meterial is Ti4O7、Ti3O5、Ti5O9In one kind.The sub- titania meterial
Micro-shape it is unlimited, can be powdered, bar-shaped, ceramics shape, at least one of cellular.The polyalcohol is Ji Wusi
Alcohol, ethylene glycol, propane diols, butanediol, hexylene glycol, neopentyl glycol, Diethylene Glycol, dipropylene glycol, trihydroxy methyl third
At least one of alkane and glycerine, the polymer alcohol are at least one of polyethylene glycol, polyvinyl alcohol.The sub- oxidation titanium
The mass ratio of material and modifying agent is 1：(0.01~1).
The mass fraction of the sub- titania slurry Central Asia titania meterial of modification is 1%~5%.
In step s 2, the source of the graphene processing and preparation method are unlimited, using known to those skilled in the art
Graphene product or with routine preparation method prepare.It is limited that the graphene of the present invention handles preferred Ningbo Mo Xi science and technology
The graphene slurry or graphene powder product that company provides.Grapheme material can be selected from chemical oxidization method such as Brodie methods,
Graphene oxide prepared by any one method in Hummers methods or Staudenmaier methods is through liquid-phase reduction or thermal expansion system
The graphene obtained.Mechanical stripping, the graphene that liquid phase is peeled off or prepared by electrochemical stripping can also be selected.
The grapheme material can set out and be prepared from compound between graphite layers, the following (graphite of specific preparation method
Intercalation compound is prepared according to known synthetic method)：The compound between graphite layers of preparation are peeled off to obtain through microwave, high-temperature expansion
Expanded graphite worm, then expanded graphite worm is dispersed in water and peeled off by ultrasound, the scattered lift-off technology systems such as shearing is scattered
It is standby into graphene.
The graphene preparation method that electrochemical process is peeled off is as follows：Electrochemical stripping graphene is according to known electrochemical stripping
Technology obtains being scattered in the graphene mixture in electrolyte, and the graphene mixture is washed and purified, after ultrasonic disperse
To graphene.
The mass ratio of the grapheme material and step (1) the sub- titania meterial is 1：(0.1~10).Preferably,
The mass ratio of the grapheme material and step (1) the sub- titania meterial is 1：(0.5~5).
In step s3, the mode of the drying is unlimited, preferably dries drying process, Press drying technology, freezes and do
Drying process, drying process with atomizing or granulating drying technology.In embodiment, the mode of the drying is more preferably spray-dried,
Freeze-drying, hot-pressing drying or drying drying.It is different according to the mode of the drying, and set different drying temperatures.
Compared with prior art, it is as follows the advantages of graphene of the present invention-sub- titanium oxide combined conductive agent：
First, the surface of the sub- titania meterial of modification carries oh group.The grapheme material can pass through the hydroxyl
Base group and the surface for being self-assembled to modified sub- titanium oxide, therefore the grapheme material can pass through the modified sub- oxidation titanium
Oh group that the surface of material carries and it is closely compound with the sub- titania meterial of modification.
Second, barrier is formed by the sub- titania meterial of modification between the grapheme material, thus effectively prevent stone
The stacking of black alkene lamella and reunion, improve the dispersion effect and utilization rate of grapheme material.
3rd, because the sub- titania meterial of modification has good stability and electric conductivity, because obtained from graphene-
Sub- titanium oxide combined conductive agent has excellent stability and electric conductivity.
The preparation method of the graphene-sub- titanium oxide combined conductive agent has that technique is simple, easily operated, suitable for production
The advantages of industryization is applied.
Hereinafter, will be in conjunction with specific embodiments to graphene of the present invention-sub- titanium oxide combined conductive agent and its preparation
Method further illustrates.
Embodiment 1
The graphene water paste that mass concentration is 2% and the Ti that mass concentration is 4% are prepared respectively4O7Modified water-soluble is starched
Material：
A) mass concentration is the preparation of 2% grapheme material water paste：Weigh the graphite that 40Kg mass concentrations are 5%
Alkene water paste, it is 2% to be diluted with water to graphene content, is stirred；
B) mass concentration is 4% Ti4O7The preparation of modified water-soluble slurry：Weigh 2kg Ti4O7Material, according to Ti4O7Material
Material is 1 with polyethylene glycol mass ratio:0.05 weighs polyethylene glycol, adds a certain amount of water and is diluted to Ti4O7Quality of materials concentration is
4%, it is dispersed with stirring uniformly；
By the above-mentioned grapheme material water paste and Ti prepared4O7Water paste is well mixed, obtain graphene/
Ti4O7Composite mortar, the intermediate pulp is spray-dried, obtains graphene/Ti4O7Combined conductive agent.
To obtained graphene/Ti4O7Combined conductive agent carries out microscopic appearance test, as a result sees Fig. 1.As seen from Figure 1, should
Graphene/Ti4O7In combined conductive agent, graphenic surface uniform fold has the Ti of high conductivity4O7Material.
Embodiment 2
The grapheme material water paste that mass concentration is 0.1% and the Ti that mass concentration is 5% are prepared respectively4O7Material
Modified water-soluble slurry：
A) mass concentration is the preparation of 0.1% grapheme material water paste：Weigh the stone that 40Kg mass concentrations are 5%
Black alkene water paste, graphene content is diluted with water to as 0.1%；
B) mass concentration is 5% Ti4O7The preparation of material modification water paste：Weigh 0.2kg Ti4O7, according to Ti4O7
It is 1 with quality of glycol ratio:1,0.2kg ethylene glycol is weighed, a certain amount of water is added and is diluted to Ti4O7Mass concentration is 5%, is stirred
Mix and be uniformly dispersed；
By the above-mentioned grapheme material water paste and Ti prepared4O7Water paste is well mixed, obtain graphene/
Ti4O7Composite mortar, the intermediate pulp is spray-dried, obtains graphene/Ti4O7Combined conductive agent.
Embodiment 3
The grapheme material water paste that mass concentration is 3% and the Ti that mass concentration is 1% are prepared respectively4O7Material changes
Property water paste：
A) mass concentration is the preparation of 3% grapheme material water paste：Weigh the graphite that 40Kg mass concentrations are 5%
Alkene water paste, it is 3% to be diluted with water to graphene content, is stirred；
B) mass concentration is 1% Ti4O7The preparation of material modification water paste：Weigh 20kg lithium batteries Ti4O7Material
Material, according to Ti4O7The mass ratio of material and pentaerythrite is 1:0.01 weighs 0.2kg pentaerythrite, adds a certain amount of water dilution
To Ti4O7Quality of materials concentration is 1%, is dispersed with stirring uniformly；
By the above-mentioned grapheme material water paste and Ti prepared4O7Water paste is well mixed, obtain graphene/
Ti4O7Composite mortar, the intermediate pulp is spray-dried, obtains graphene/Ti4O7Combined conductive agent.
Embodiment 4
The grapheme material water paste that mass concentration is 1% and the Ti that mass concentration is 2% are prepared respectively3O5Material changes
Property water paste：
A) mass concentration is the preparation of 1% grapheme material water paste：Weigh the graphite that 40Kg mass concentrations are 5%
Alkene water paste, it is 1% to be diluted with water to graphene content, is stirred；
B) mass concentration is 2% Ti3O5The preparation of material modification water paste：Weigh 4kgTi3O5Material, according to Ti3O5
The mass ratio of material and 2 one propane diols is 1:0.1 weighs 0.4kg 2 one propane diols, adds a certain amount of water and is diluted to Ti3O5Quality
Concentration is dispersed with stirring uniformly for 2%；
By the above-mentioned grapheme material water paste and Ti prepared3O5Water paste is well mixed, obtain graphene/
Ti3O5Composite mortar, the intermediate pulp is spray-dried, obtains graphene/Ti3O5Combined conductive agent.
Embodiment 5
The grapheme material water paste that mass concentration is 2% and the Ti that mass concentration is 4% are prepared respectively3O5Material changes
Property water paste：
A) mass concentration is the preparation of 2% grapheme material water paste：Weigh the graphite that 40Kg mass concentrations are 5%
Alkene water paste, it is 2% to be diluted with water to graphene content, is stirred；B) mass concentration is 4% Ti3O5Material modification water
The preparation of property slurry：Weigh 2kgTi3O5Material, according to Ti3O5The mass ratio of material and neopentyl glycol is 1:1 weighs the new of 2kg
Pentanediol, add a certain amount of water and be diluted to Ti3O5Mass concentration is 4%, is dispersed with stirring uniformly；
By the above-mentioned grapheme material water paste and Ti prepared3O5Water paste is well mixed, obtain graphene/
Ti3O5Composite mortar, by the intermediate pulp press filtration, oven drying, obtain graphene/Ti3O5Combined conductive agent.
Embodiment 6
The grapheme material water paste that mass concentration is 3% and the Ti that mass concentration is 5% are prepared respectively5O9Material changes
Property water paste：
A) mass concentration is the preparation of 2% grapheme material water paste：Weigh the graphite that 40Kg mass concentrations are 5%
Alkene water paste, it is 2% to be diluted with water to graphene content, is stirred；
B) mass concentration is 5% Ti5O9The preparation of material modification water paste：Weigh 20kg lithium batteries Ti5O9Material
Material, according to Ti5O9The mass ratio of material and D-sorbite is 1:1 weighs 20kg D-sorbite, adds a certain amount of water and is diluted to
Ti5O9Quality of materials concentration is 5%, is dispersed with stirring uniformly；
By the above-mentioned grapheme material water paste and Ti prepared5O9Water paste is well mixed, obtain graphene/
Ti5O9Composite mortar, by the intermediate pulp press filtration, oven drying, obtain graphene/Ti3O5Combined conductive agent.
Embodiment 7
The grapheme material water paste that mass concentration is 2% and the Ti that mass concentration is 4% are prepared respectively5O9Material changes
Property water paste：
A) mass concentration is the preparation of 2% grapheme material water paste：Weigh the graphite that 40Kg mass concentrations are 5%
Alkene water paste, it is 2% to be diluted with water to graphene content, is stirred；
B) mass concentration is 4% Ti5O9The preparation of material modification water paste：Weigh 4kgTi5O9Material, according to Ti5O9
The mass ratio of material and polyglycerol is 1:0.1 weighs 0.4kg polyglycerol, adds a certain amount of water and is diluted to Ti5O9Material matter
It is 4% to measure concentration, is dispersed with stirring uniformly；
By the above-mentioned grapheme material water paste and Ti prepared5O9Water paste is well mixed, obtain graphene/
Ti5O9Composite mortar, the intermediate pulp is spray-dried to obtain graphene/Ti5O9Combined conductive agent.
Embodiment 8
The grapheme material water paste that mass concentration is 3% and the Ti that mass concentration is 5% are prepared respectively4O7Material changes
Property water paste：
A) mass concentration is the preparation of 3% grapheme material water paste：Weigh the graphite that 40Kg mass concentrations are 5%
Alkene water paste, it is 3% to be diluted with water to graphene content, is stirred；B) mass concentration is 5% Ti4O7Material modification water
Property slurry preparation：Weigh 10kgTi4O7Material, according to Ti4O7The mass ratio of material and two polyglycerols is 1:1 weighs 10kg's
Two polyglycerols, add a certain amount of water and be diluted to Ti4O7Mass concentration is 5%.
By the above-mentioned grapheme material water paste and Ti prepared4O7Water paste is well mixed, obtain graphene/
Ti4O7Composite mortar, the intermediate pulp is spray-dried to obtain graphene/Ti4O7Combined conductive agent.
Embodiment 9
The grapheme material water paste that mass concentration is 0.1% and the Ti that mass concentration is 5% are prepared respectively3O5Material
Modified water-soluble slurry：
A) mass concentration is the preparation of 0.1% grapheme material water paste：Weigh the stone that 40Kg mass concentrations are 5%
Black alkene water paste, it is 0.1% to be diluted with water to graphene content, is stirred；
B) mass concentration is 5% Ti3O5The preparation of material modification water paste：Weigh 0.2kgTi3O5Material, according to
Ti3O5The mass ratio of material and diethylene glycol is 1:1 weighs 0.2kg diethylene glycol, adds a certain amount of water and is diluted to Ti3O5Matter
It is 5% to measure concentration, is dispersed with stirring uniformly；
By the above-mentioned grapheme material water paste and Ti prepared3O5Material modification water paste is well mixed, and obtains stone
Black alkene/Ti3O5Compound middle material, the intermediate pulp is subjected to hot-pressing drying at 100 DEG C, obtains graphene/Ti3O5Composite guide
Electric powder.
The explanation of above example is only intended to help the method and its core concept for understanding the present invention.It should be pointed out that pair
For those skilled in the art, under the premise without departing from the principles of the invention, the present invention can also be carried out
Some improvement and modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (9)
- A kind of 1. graphene-sub- titanium oxide combined conductive agent, it is characterised in that the graphene-sub- titanium oxide combined conductive agent Including grapheme material and modified sub- titania meterial, the sub- titania meterial of modification is that sub- titania meterial passes through polymer Alcohol or it is polyalcohol modified obtain, the surface of the sub- titania meterial of modification carries oh group, and the grapheme material passes through Oh group that the surface of the sub- titania meterial of modification carries and it is closely compound with the sub- titania meterial of modification.
- A kind of 2. graphene-sub- titanium oxide combined conductive agent as claimed in claim 1, it is characterised in that the sub- oxygen of modification The sub- titanium oxide changed in titanium material is Ti4O7、Ti3O5、Ti5O9In one kind.
- 3. a kind of graphene-sub- titanium oxide combined conductive agent as claimed in claim 1, it is characterised in that the polyalcohol is Pentaerythrite, ethylene glycol, propane diols, butanediol, hexylene glycol, neopentyl glycol, Diethylene Glycol, dipropylene glycol, three hydroxyls At least one of methylpropane and glycerine, the polymer alcohol are at least one of polyethylene glycol, polyvinyl alcohol.
- 4. a kind of graphene composite conductive powder as claimed in claim 1, it is characterised in that the grapheme material and sub- oxygen The mass ratio for changing titanium material is 1：(0.1~10).
- 5. the preparation method of a kind of graphene-sub- titanium oxide combined conductive agent, it is characterised in that it comprises the following steps：(1) sub- titania meterial, modifying agent are mixed with water, modified sub- titania slurry is prepared, wherein, the modifying agent For polymer alcohol or polyalcohol；(2) grapheme material is dispersed in water to obtain graphene slurry, then by graphene slurry with being modified sub- titania slurry Mixing, composite mortar is obtained by self assembly；And(3) composite mortar is dried, obtains graphene-sub- titanium oxide combined conductive agent.
- A kind of 6. preparation method of graphene-sub- titanium oxide combined conductive agent as claimed in claim 5, it is characterised in that step Suddenly the mass fraction of modified sub- titania slurry Central Asia titania meterial is 1%~5% described in (1).
- A kind of 7. preparation method of graphene-sub- titanium oxide combined conductive agent as claimed in claim 5, it is characterised in that step Suddenly polyalcohol described in (1) is pentaerythrite, ethylene glycol, propane diols, butanediol, hexylene glycol, neopentyl glycol, two contracting diethyls two Alcohol, dipropylene glycol, at least one of trimethylolpropane and glycerine, the polymer alcohol are polyethylene glycol, polyvinyl alcohol At least one of.
- A kind of 8. preparation method of graphene-sub- titanium oxide combined conductive agent as claimed in claim 5, it is characterised in that step Suddenly the mass ratio of sub- titania meterial and modifying agent described in (1) is 1：(0.01~1).
- A kind of 9. preparation method of graphene-sub- titanium oxide combined conductive agent as claimed in claim 5, it is characterised in that step Suddenly the mass ratio of grapheme material described in (2) and step (1) the sub- titania meterial is 1：(0.1~10).
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| CN111525133A (en) * | 2020-03-25 | 2020-08-11 | 眉山顺应动力电池材料有限公司 | Composite conductive agent, lithium ion positive electrode material prepared from composite conductive agent and lithium ion battery |
| CN113233553A (en) * | 2021-05-28 | 2021-08-10 | 东莞理工学院 | Ti loaded with graphene nanoparticles4O7Method for preparing anode |
| CN113461049A (en) * | 2021-08-11 | 2021-10-01 | 贵阳精一科技有限公司 | Preparation method of ultrahigh-purity titanium dioxide |
| WO2022034852A1 (en) * | 2020-08-13 | 2022-02-17 | 株式会社村田製作所 | Film manufacturing method and conductive film |
| CN115849860A (en) * | 2022-11-14 | 2023-03-28 | 北京科技大学 | graphene/Magneli phase TinO 2n-1 Nano particle composite high heat-conducting film and preparation method thereof |
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| CN111525133A (en) * | 2020-03-25 | 2020-08-11 | 眉山顺应动力电池材料有限公司 | Composite conductive agent, lithium ion positive electrode material prepared from composite conductive agent and lithium ion battery |
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| JP7355249B2 (en) | 2020-08-13 | 2023-10-03 | 株式会社村田製作所 | Membrane manufacturing method and conductive membrane |
| CN113233553A (en) * | 2021-05-28 | 2021-08-10 | 东莞理工学院 | Ti loaded with graphene nanoparticles4O7Method for preparing anode |
| CN113233553B (en) * | 2021-05-28 | 2022-06-24 | 东莞理工学院 | Ti loaded with graphene nanoparticles4O7Method for preparing anode |
| CN113461049A (en) * | 2021-08-11 | 2021-10-01 | 贵阳精一科技有限公司 | Preparation method of ultrahigh-purity titanium dioxide |
| CN115849860A (en) * | 2022-11-14 | 2023-03-28 | 北京科技大学 | graphene/Magneli phase TinO 2n-1 Nano particle composite high heat-conducting film and preparation method thereof |
| CN115849860B (en) * | 2022-11-14 | 2023-10-24 | 北京科技大学 | Graphene/magneli phase TinO 2n-1 Nanoparticle composite high-heat-conductivity film and preparation method thereof |
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