CN109273693A - A kind of preparation method of carbon-coated spherical hollow molybdenum disulfide - Google Patents
A kind of preparation method of carbon-coated spherical hollow molybdenum disulfide Download PDFInfo
- Publication number
- CN109273693A CN109273693A CN201811124416.9A CN201811124416A CN109273693A CN 109273693 A CN109273693 A CN 109273693A CN 201811124416 A CN201811124416 A CN 201811124416A CN 109273693 A CN109273693 A CN 109273693A
- Authority
- CN
- China
- Prior art keywords
- molybdenum disulfide
- carbon
- spherical hollow
- preparation
- hollow molybdenum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/366—Composites as layered products
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/581—Chalcogenides or intercalation compounds thereof
- H01M4/5815—Sulfides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The present invention relates to a kind of preparation methods of the spherical hollow molybdenum disulfide of carbon coating.This method is first dispersed molybdenum trioxide, potassium rhodanide, sodium fluoride in dehydrated alcohol and the mixed solution of deionized water by the molar ratio of 3.5 ~ 4.5:5 ~ 6.5:3 ~ 4.5.Then soluble carbon compound is added, obtains suspension after being sufficiently stirred.Then resulting suspension is moved into reaction kettle, is reacted 18 ~ 32 hours at 180 ~ 230 DEG C.Acquired solution is centrifuged, washed, is dried, finally under nitrogen or argon atmosphere in 400 ~ 800 DEG C constant temperature 4 ~ 8 hours, obtain carbon-coated spherical hollow molybdenum disulfide after cooling.The hollow molybdenum disulfide spheroidal material of carbon coating prepared by the present invention, stable structure, charge transport ability is strong, significantly improves high rate during charging-discharging and electrochemical cycle stability.This method technical process is simple, equipment requirement is low and synthesis cost is low.
Description
Technical field
The present invention relates to a kind of preparation methods of carbon-coated spherical hollow molybdenum disulfide, belong to lithium ion battery material
Preparation technical field.
Technical background
Lithium ion battery has many advantages, such as small in size, light weight, using safe, memory-less effect and environmentally protective,
It is widely used in portable small device, laptop, field of aerospace, electric vehicle, new-energy automobile and big
The fields such as type energy-accumulating power station.With booming, the people of the growing material and cultural needs of the people and new-energy automobile industry
To lithium ion battery energy density, more stringent requirements are proposed.Negative electrode material is the important component of lithium ion battery, mesh
For the specific capacity of preceding commercialization graphite cathode material already close to its theoretical capacity, this largely limits lithium ion battery energy
Metric density further increases.Exploitation novel high-capacity and the lithium ion battery negative material of low cost are increasingly becoming research heat
Point.Molybdenum disulfide (the MoS of class graphene-structured2) it is typical stratiform transient metal sulfide, theoretical specific capacity (670mAh/
G) be nearly twice of graphite, weaker model ylid bloom action power is conducive to the insertion and abjection of lithium ion between layers, every layer it
Between stronger covalent bond effect power enhance lithium ion it is de-/embedding during structural stability, therefore MoS2It is with higher can
Inverse circulation volume and preferable cyclical stability, are considered as the next-generation lithium ion battery negative material of great market development potential
One of.However, MoS2Semiconductor electrology characteristic constrains the quick transmission of charge in the material, MoS2It is larger in charge and discharge process
Volume expansion can also deteriorate the cyclical stability of material, these shortcomings all can seriously limit MoS2High-energy density,
Application prospect in the lithium-ion-power cell and energy-storage system of high power density.In order to improve MoS in charge and discharge process2Electricity
Lotus transport capability and structural stability, the present invention are prepared for carbon-coated hollow molybdenum disulfide spheroidal material using hydro-thermal method, and two
Structure change caused by lithium ion intercalation/deintercalation can be effectively relieved in the hollow spheres structure of molybdenum sulfide, and carbon coating is conducive to
The cyclical stability and charge transport ability of electrode material are improved, and then improves the electrochemical cycle stability of molybdenum disulfide and big
Current charge-discharge electrical property.
Summary of the invention
In order to improve the electrochemical cycle stability and high rate during charging-discharging of molybdenum disulfide material, the present invention utilizes water
Thermal method is prepared for the combination electrode material of carbon-coated spherical hollow molybdenum disulfide spherical shape, has not only improved the electric conductivity of material, but also
The structural stability of material is improved, and then improves the chemical property of molybdenum disulfide.
To achieve the purpose of the present invention, the technical solution adopted is that:
1, respectively by molybdenum trioxide, potassium rhodanide, sodium fluoride by 3.5 ~ 4.5: 5 ~ 6.5: 3 ~ 4.5 molar ratios be scattered in from
In the mixed solution of sub- water and dehydrated alcohol, stir 60 minutes, wherein deionized water and the volume ratio of dehydrated alcohol are 1:1 ~ 4.
2, soluble carbon compound is added, stirring obtained mixed solution suspension after 0.5~2 hour.
Solubility carbon compound of the present invention is one of D-Glucose or sucrose, D-Glucose or sucrose
Additional amount is the 5% ~ 30% of obtained spherical hollow molybdenum disulfide quality of materials.
3, resulting mixed solution will be appealed to be moved into reaction kettle, is placed in temperature control baking oven, reacted at 180 ~ 230 DEG C
The black predecessor obtained for 18 ~ 32 hours.
4, black predecessor is centrifuged, washed, dried, then it is gradually heated to 400 under atmosphere of inert gases ~
Simultaneously calcining at constant temperature 4 ~ 8 hours between 800 DEG C, the heating rate for being raised to calcination temperature from room temperature is 1 ~ 10 DEG C/min, then with furnace
It is down to room temperature and obtains carbon-coated spherical hollow molybdenum disulfide of the present invention.
The inert gas is argon gas or nitrogen.
Preparation method of the present invention effectively synthesized with high-specific surface area, even particle distribution it is carbon-coated hollow
Molybdenum disulfide sphere material, molybdenum disulfide hollow structure increase the contact area of material and electrolyte, and carbon coating is conducive to increase
The structural stability and charge transport ability of strong composite material, significantly improve the high rate during charging-discharging and electricity of composite material
Chemical cycle stability.This method technical process is simple, equipment requirement is low and synthesis cost is low, is easy to industrially implement to answer
With.
Detailed description of the invention
Fig. 1 is the X ray diffracting spectrum of sample A prepared by the embodiment of the present invention 1.
Fig. 2 is the electron scanning micrograph of sample A prepared by the embodiment of the present invention 1.
Fig. 3 is the cycle performance curve of sample A prepared by the embodiment of the present invention 1.
Fig. 4 is the high rate performance curve of sample A prepared by the embodiment of the present invention 1.
Fig. 5 is the X ray diffracting spectrum of sample B prepared by the embodiment of the present invention 2.
Fig. 6 is the electron scanning micrograph of sample B prepared by the embodiment of the present invention 2.
Fig. 7 is the cycle performance curve of sample B prepared by the embodiment of the present invention 2.
Fig. 8 is the high rate performance curve of sample B prepared by the embodiment of the present invention 2.
Specific embodiment
With reference to the accompanying drawing and case study on implementation, the present invention will be further described.
Embodiment 1
It weighs quality and is scattered in 10 milliliters of anhydrous second for 0.432 gram of molybdenum trioxide, 0.583 gram of potassium rhodanide, 0.378 gram of sodium fluoride
In alcohol and the mixed solution of 20 ml deionized waters, magnetic agitation 60 minutes, 0.5g D-Glucose is added, after stirring 1 hour
Obtain mixed solution suspension.Obtained mixed solution suspension is moved into 40 milliliters of reaction kettle, reaction kettle is placed in air blast
In drying box, and reacted 24 hours at 220 DEG C.Then respectively with deionized water and dehydrated alcohol to the solution after hydro-thermal reaction
It is centrifuged, washed, dried, the product after drying is sintered 4 hours for 550 DEG C under an argon atmosphere finally, is raised to and forges from room temperature
The heating rate for burning temperature is 3 DEG C/min, with furnace cooled to room temperature to get carbon-coated to grey black after sintering
Spherical hollow molybdenum disulfide material.
The sample that the present embodiment is prepared is labeled as sample A, the X-ray diffracting spectrum of sample A as shown in Figure 1, with
The implementation case sample A known to the comparison of molybdenum disulfide standard card is molybdenum disulfide phase.Sample A sweep electromicroscopic photograph such as Fig. 2 institute
Show, stereoscan photograph, which shows obtained carbon coating molybdenum disulfide powder, to be had hollow structure and spherical morphology, carbon is presented
Material is evenly coated at the surface of hollow molybdenum disulfide spheroidal material.
Sample A powder made from weighing 0.07 gram, 0.02 gram of conductive black and 0.01 gram of Kynoar, are scattered in N-
It in methylpyrrolidone solution, is applied on copper foil after mixing, with furnace Temperature fall after being dried in vacuo 20 hours in 110 DEG C
To room temperature, molybdenum disulfide cathode pole piece is made.Using the LiPF of 1.0 mol/L6/ EC/DEC/DMC is electrolyte, wherein
LiPF6For conductive salt, EC (ethylene carbonate)/DEC (diethyl carbonate)/DMC (dimethyl carbonate) is double solvents, three
Volume ratio (EC:DEC:DMC) be 1: 1: 1.With metal lithium sheet be to electrode, 2300 polypropylene screen of Cellgard be every
Film is assembled into button cell with above-mentioned cathode and carries out charge-discharge test, and the voltage range of charge and discharge is 0.01 ~ 3.0V.
Fig. 3 is that the present embodiment prepares cycle performance curve of the sample A under the current density of 500mA/g, is followed by 50 times
After ring, Reversible lithium insertion capacity 850mAh/g illustrates that sample A made from this method has good chemical property.
Fig. 4 is that the present embodiment prepares curve of double curvature of the sample A under different current densities.It illustrates made from this method
Carbon-coated hollow molybdenum disulfide spheroidal material has good chemical property.
Embodiment 2
It weighs quality and is scattered in 10 milliliters of anhydrous second for 0.360 gram of molybdenum trioxide, 0.621 gram of potassium rhodanide, 0.415 gram of sodium fluoride
In alcohol and the mixed solution of 20 ml deionized waters, magnetic agitation 60 minutes, 0.5 gram of D-Glucose is added, is stirred 2 hours
After obtain mixed solution suspension.Resulting mixed solution suspension is moved into 40 milliliters of reaction kettle, reaction kettle is placed in drum
In wind drying box, and reacted 28 hours at 230 DEG C.Then respectively with deionized water and dehydrated alcohol to the institute after hydro-thermal reaction
It obtains solution to be centrifuged, washed, dried, is finally sintered 6 hours in 500 DEG C under an argon atmosphere, is raised to calcination temperature from room temperature
Heating rate be 3 DEG C/min, after sintering with furnace cooled to room temperature to get arrive grey black carbon-coated hollow two
Molybdenum sulfide spheroidal material.The present embodiment is prepared into sample labeled as B.The X-ray diffracting spectrum of sample B is as shown in figure 5, with two
The implementation case sample B known to the comparison of molybdenum sulfide standard card is molybdenum disulfide phase.The stereoscan photograph of sample B such as Fig. 6 institute
Show, stereoscan photograph, which shows obtained molybdenum disulfide powder, to be had hollow structure and spherical morphology is presented, and carbon material is equal
The even surface for being coated on hollow molybdenum disulfide spheroidal material.
Sample B powder made from weighing 0.07 gram, 0.02 gram of conductive black and 0.01 gram of Kynoar, are scattered in N-
It in methylpyrrolidone solution, is applied on copper foil after mixing, with furnace Temperature fall after being dried in vacuo 12 hours in 110 DEG C
To room temperature, molybdenum disulfide cathode pole piece is made.Using the LiPF of 1.0 mol/L6/ EC/DEC/DMC is electrolyte, wherein
LiPF6For conductive salt, EC (ethylene carbonate)/DEC (diethyl carbonate)/DMC (dimethyl carbonate) is double solvents, three
Volume ratio (EC:DEC:DMC) be 1: 1: 1.With metal lithium sheet be to electrode, 2300 polypropylene screen of Cellgard be every
Film is assembled into button cell with above-mentioned cathode and carries out charge-discharge test, and the current density of charge and discharge is 500 mA/g, charge and discharge
Voltage range is 0.01 ~ 3.0V.
Fig. 7 is that the present embodiment prepares cycle performance curve of the sample B under the current density of 500mA/g, is followed by 50 times
After ring, Reversible lithium insertion capacity 800mAh/g illustrates that sample B made from this method has good chemical property.
Fig. 8 is that the present embodiment prepares curve of double curvature of the sample B under different current densities.It illustrates made from this method
Carbon-coated hollow molybdenum disulfide spheroidal material has good chemical property.
Claims (6)
1. a kind of preparation method of carbon-coated spherical hollow molybdenum disulfide, it is characterised in that:
First deionized water is dispersed by 3.5 ~ 4.5: 5 ~ 6.5: 3 ~ 4.5 molar ratios by molybdenum trioxide, potassium rhodanide, sodium fluoride
In dehydrated alcohol mixed solution, it is sufficiently stirred 60 minutes；
Then appropriate soluble carbon compound is added, obtains mixed solution suspension after being sufficiently stirred 0.5 ~ 2 hour；
Then gained mixed solution suspension is moved into reaction kettle, before reacting 18 ~ 32 hours obtained black at 180 ~ 230 DEG C
Drive object；
Obtained black predecessor is centrifuged, washed, is dried, then it is gradually heated to 400 under atmosphere of inert gases ~
Simultaneously calcining at constant temperature 4 ~ 8 hours between 800 DEG C, room temperature then is down to furnace and obtains carbon-coated spherical hollow molybdenum disulfide.
2. the preparation method of the carbon-coated hollow molybdenum disulfide spheroidal material of one kind according to claim 1, feature exist
In the mixed solution of the deionized water and dehydrated alcohol, the ratio of deionized water and dehydrated alcohol is 1: 1 ~ 4.
3. the preparation method of the carbon-coated spherical hollow molybdenum disulfide of one kind according to claim 1, it is characterised in that add
The soluble carbon compound entered is one of D-Glucose or sucrose.
4. the preparation method of the carbon-coated spherical hollow molybdenum disulfide of one kind according to claim 1, it is characterised in that add
Enter soluble carbon compound, additional amount is the 5% ~ 30% of obtained spherical hollow molybdenum disulfide quality of materials.
5. the preparation method of the carbon-coated spherical hollow molybdenum disulfide of one kind according to claim 1, it is characterised in that institute
The inert gas stated is argon gas or nitrogen.
6. the preparation method of the carbon-coated hollow molybdenum disulfide spheroidal material of one kind according to claim 1, feature exist
It is gradually warmed up in described, the heating rate for being raised to calcination temperature from room temperature is 1 ~ 10 DEG C/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811124416.9A CN109273693A (en) | 2018-09-26 | 2018-09-26 | A kind of preparation method of carbon-coated spherical hollow molybdenum disulfide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811124416.9A CN109273693A (en) | 2018-09-26 | 2018-09-26 | A kind of preparation method of carbon-coated spherical hollow molybdenum disulfide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109273693A true CN109273693A (en) | 2019-01-25 |
Family
ID=65198190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811124416.9A Pending CN109273693A (en) | 2018-09-26 | 2018-09-26 | A kind of preparation method of carbon-coated spherical hollow molybdenum disulfide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109273693A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366726A (en) * | 2015-12-16 | 2016-03-02 | 中国科学院理化技术研究所 | Preparation method of hollow spherical molybdenum disulfide of laminated shell layer structure |
| US20160118658A1 (en) * | 2014-10-27 | 2016-04-28 | Semiconductor Energy Laboratory Co., Ltd. | Particle, electrode, power storage device, electronic device, and method for manufacturing electrode |
| CN106902846A (en) * | 2017-03-20 | 2017-06-30 | 中国科学院宁波材料技术与工程研究所 | A kind of hollow TiO2/MoS2Composite and preparation method thereof |
| CN107275600A (en) * | 2017-05-31 | 2017-10-20 | 浙江大学 | The preparation method of molybdenum disulfide/carbon composite of hollow sphere |
| CN107331840A (en) * | 2017-06-28 | 2017-11-07 | 福建师范大学 | A kind of preparation method of the hollow molybdenum disulfide faceted material of carbon coating |
-
2018
- 2018-09-26 CN CN201811124416.9A patent/CN109273693A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160118658A1 (en) * | 2014-10-27 | 2016-04-28 | Semiconductor Energy Laboratory Co., Ltd. | Particle, electrode, power storage device, electronic device, and method for manufacturing electrode |
| CN105366726A (en) * | 2015-12-16 | 2016-03-02 | 中国科学院理化技术研究所 | Preparation method of hollow spherical molybdenum disulfide of laminated shell layer structure |
| CN106902846A (en) * | 2017-03-20 | 2017-06-30 | 中国科学院宁波材料技术与工程研究所 | A kind of hollow TiO2/MoS2Composite and preparation method thereof |
| CN107275600A (en) * | 2017-05-31 | 2017-10-20 | 浙江大学 | The preparation method of molybdenum disulfide/carbon composite of hollow sphere |
| CN107331840A (en) * | 2017-06-28 | 2017-11-07 | 福建师范大学 | A kind of preparation method of the hollow molybdenum disulfide faceted material of carbon coating |
Non-Patent Citations (1)
| Title |
|---|
| WENDA QIU ET AL.: "Facile Synthesis of Hollow MoS2Microspheres/Amorphous Carbon Composites and Their Lithium Storage Properties", 《ELECTROCHIMICA ACTA》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106450195B (en) | A kind of positive material for lithium-sulfur battery and preparation method thereof and the lithium-sulfur cell containing the positive electrode | |
| CN110289416B (en) | Preparation method of bismuth-molybdenum bimetallic sulfide as negative electrode material of sodium-ion battery | |
| CN105742602A (en) | Sn/MoS<2>/C composite material for sodium ion battery negative electrode and preparation method therefor | |
| CN104716317B (en) | A kind of sodium-ion battery NaxMnO2The synthetic method of positive electrode | |
| CN107086300B (en) | It is a kind of for the negative electrode material of sodium-ion battery and its preparation and application | |
| CN107093739B (en) | Potassium manganese oxide for potassium ion battery anode material and preparation method thereof | |
| CN105185989B (en) | A kind of sodium-ion battery conducting polymer/SnSexNano flower anode material and preparation method thereof | |
| CN104638242A (en) | Method for synthesizing lithium ion battery cathode material lithium iron phosphate through in situ polymerizing and cladding | |
| CN110071279A (en) | A kind of SnS2/ CNTs@rGO composite construction, preparation method and application | |
| CN106784669A (en) | A kind of conductive polymer polyanilinc modified phosphate vanadium sodium positive electrode and preparation method thereof | |
| CN108777294A (en) | A kind of porous spherical MoN that the carbon being made of nanometer sheet is supported and its application as negative material in lithium battery | |
| CN105742591A (en) | Carbon coated Na3VO4 composite anode material and preparation method and application thereof | |
| CN102969493B (en) | For the preparation method of the negative material of non-aqueous secondary batteries, non-aqueous secondary batteries negative pole and non-aqueous secondary batteries | |
| CN105514375B (en) | A kind of carbon coating Na0.55Mn2O4·1.5H2O nanocomposite and preparation method thereof | |
| CN109980204A (en) | The method of the high performance tertiary cathode material of vanadic anhydride cladding is prepared by surface active agent assisting alcohol-hydrothermal method | |
| CN106898754B (en) | Application of heteroatom in preparation of carbon-phosphorus material of lithium-phosphorus battery, material and preparation method thereof | |
| CN105914354A (en) | Sodium-rich type titanium matrix layered solid solution electrode material for room-temperature sodium ion battery and preparation method | |
| CN110931770A (en) | Cr-doped modified high-voltage spinel cathode material and preparation method thereof | |
| CN114702614A (en) | Cathode material for improving cycling stability of vulcanized polyacrylonitrile battery and preparation method thereof | |
| CN109742361A (en) | A kind of preparation method and application of compound anode material of lithium-ion battery | |
| CN105098157A (en) | Preparation method of Fe4[Fe(CN)6]3@Co3[Co(CN)6]2 composite material and application of Fe4[Fe(CN)6]3@Co3[Co(CN)6]2 composite material | |
| CN102983318B (en) | Material for negative electrode of non-aqueous secondary battery, preparation method of material, non-aqueous secondary battery and negative electrode thereof | |
| CN106025180A (en) | Lithium-ion battery cathode material GeO2/C with core-shell structure and preparation method thereof | |
| CN109037652A (en) | A kind of preparation method and application of nitrogen-doped carbon cladding graduation germanium junction structure | |
| CN110683589B (en) | Preparation method of cobaltosic oxide nano material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190125 |