CN106531966B - Nanometer and its is applied Cu@CuO material preparation method in lithium ion battery - Google Patents
Nanometer and its is applied Cu@CuO material preparation method in lithium ion battery Download PDFInfo
- Publication number
- CN106531966B CN106531966B CN201611141213.1A CN201611141213A CN106531966B CN 106531966 B CN106531966 B CN 106531966B CN 201611141213 A CN201611141213 A CN 201611141213A CN 106531966 B CN106531966 B CN 106531966B
- Authority
- CN
- China
- Prior art keywords
- nanometer
- cuo
- copper
- negative electrode
- electrode material
- 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.)
- Active
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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1391—Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- 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
Abstract
The invention discloses the preparation method of a kind of nanometer of Cu CuO material and using nanometer Cu CuO material as the lithium ion battery of negative electrode material, belong to field of energy source materials.The method that the present invention uses hydro-thermal reaction, sodium hydroxide provide alkaline environment, and hydrogen peroxide prepares nanometer Cu@CuO negative electrode material as oxygen source, by slowly etching two-dimentional copper nanometer sheet；The advantage of the invention is that method and apparatus is simple, technological parameter is controllable and mild condition, repeatability are high.Abundant raw material needed for preparing, it is at low cost, it is convenient for scale.The nanometer Cu@CuO negative electrode material specific capacity with higher of the method preparation and good cyclical stability, it is a kind of ideal lithium ion battery negative material, can be widely applied to the fields such as portable electronic device, electric tool, space technology and national defense industry.
Description
Technical field
The invention belongs to energy and materials and electrochemical field, and in particular to a kind of system of novel cathode material for lithium ion battery
Storage and conversion standby and its in electrochemical energy.
Background technique
Demand with people to the energy is growing, the aggravation of fossil fuel reserves reductions and environmental pollution, opens
The new energy for sending out clean and effective becomes hot spot concerned by people.Lithium ion battery is as a kind of energy storage device, due to having
It the advantages that environmentally friendly, light, high capacity, long-life, is more and more applied.It can be applied not only to various portable electrics
Sub- equipment has very big application in terms of as the energy storage device of the new energy such as electric powered motor power supply and solar energy, wind energy
Prospect.In recent years, more stringent requirements are proposed for power density and energy density of the development of electrical equipment to lithium ion battery, and
Electrode material is the deciding factor that performance of lithium ion battery improves.In terms of negative electrode material, current commercialized lithium-ion electric
Pond negative electrode material graphite theoretical capacity (372 mAh/g) is relatively low, has been unable to meet demand of the people to battery performance.Therefore it studies
Become an important topic with exploitation novel ion cell negative electrode material.Oxide cathode material has theoretical capacity height, circulation
The advantages that performance is good, security performance is high, wherein CuO is 673 mAh/g as its theoretical specific capacity of lithium ion battery negative material,
It is 2-3 times of common carbon negative pole material battery capacity, is the lithium ion battery of new generation of a kind of great development and application potential
Negative electrode material.However, CuO electrode material causes significantly to tie due to that can generate biggish bulk effect in charge and discharge process
Structure breakage dusting, then leads to circulation volume rapid decrease.In addition, the electric conductivity of CuO electrode material is poor, this strong influence
The transmission of charge in the electrodes, and then influence the electrochemical lithium storage performance of electrode material.For the disadvantage mentioned above of CuO material,
Researchers conduct extensive research.Electrode material size is reduced to nanosized, is conducive to improve CuO in cyclic process
The volume expansion of CuO is alleviated in the release of the stress generated due to removal lithium embedded, can effectively improve the cyclical stability of CuO.Separately
Outside, CuO and nano material with good conductivity is compound, the conductivity of CuO electrode material can be improved, improve charge in electrode material
Migration rate in material obtains the electrode material of preferable high rate performance in turn.In current research, CuO and carbon with good conductivity
The compound report of sill is more, but forms but being rarely reported for combination electrode material with nano-metallic copper, especially with
Hydrothermal method is obtained nanometer research of Cu@CuO electrode material and is had not been reported using copper nanometer sheet as reaction template.
Summary of the invention
Based on the above issues, the present invention provides the preparation method of a kind of nanometer of Cu@CuO material and by the preparation of this kind of method
Lithium ion battery of the negative electrode material as the Cu@CuO negative electrode material of application and the above-mentioned preparation of application of lithium ion battery.This hair
It is bright using copper nanometer sheet as conductive substrates, pass through hydro-thermal reaction method prepare nanometer Cu@CuO negative electrode material.Preparation of the invention
The method and apparatus of Cu@CuO material is simple, and technological parameter is controllable and mild condition, repeatability are high.Raw material needed for preparing is rich
Richness, it is at low cost, it is convenient for scale.
Present invention employs technical solutions below:
The preparation method of a kind of nanometer of Cu@CuO material, first preparing thickness by self-assembly method is about 600-700 nm, directly
Diameter is about 20-200 μm of copper nanometer sheet, then resulting copper nanometer sheet is passed through hydrothermal treatment process, prepares nanometer Cu@
CuO negative electrode material；
Specific process step are as follows:
(1) water, glucose, polyvinylpyrrolidone, than mixing, stirring 3 hours or more, are clarified by certain mass
Mixed liquid；
(2) under stirring conditions, the clarification in step (1) mixes in liquid and copper sulfate solution is added dropwise, and stirs at room temperature
After mixing 30-60min, it is transferred in hydrothermal reaction kettle and reacts 2.5-4h at 160-200 DEG C；
(3) it is done by the obtained product centrifugation of step (2), successively using deionized water and dehydrated alcohol washing, vacuum
Copper nanometer sheet is obtained after dry；
(4) a certain amount of water, sodium hydroxide, hydrogenperoxide steam generator is added into copper nanometer sheet obtained by step (3) and is put into water
In thermal response kettle, stir 1-5min after in 100-150 DEG C of baking oven insulation reaction 6-14h；
(5) after room temperature is cooling, washed by the centrifugation of step (4) products therefrom, successively using deionized water and dehydrated alcohol,
A nanometer Cu@CuO negative electrode material powder is obtained after vacuum drying.
Further, solution in step (1), the mass ratio control of water, glucose, polyvinylpyrrolidone is in 25:0.5-
1:0.2-1。
Further, the mass ratio of the material of copper sulphate and glucose in step (1) is 1:2.5-5 in step (2).
Further, in step (4) water, sodium hydroxide and hydrogen peroxide mass ratio are as follows: 50-150:1.6-8:4.5-
27.8。
Further, in step (4) copper nanometer sheet and sodium hydroxide molar ratio are as follows: 0.03-0.78:4-20.
Further, drying described in step (5) is vacuum drying, and it is 40 ~ 80 DEG C that temperature, which is arranged, in baking oven.
Further, the present invention provides a kind of lithium ion battery, and the negative electrode material of lithium ion battery uses above-mentioned nanometer
Cu@CuO negative electrode material.The method that the present invention first uses self assembly obtains copper nanometer sheet material, is combining hydrothermal reaction process, benefit
A nanometer Cu@CuO material is prepared in corrasion with sodium hydroxide and hydrogen peroxide to copper nanometer sheet.The material is by electrochemistry
Activity core material and conductive nano matrix are constituted, and electro-chemical activity core material CuO homoepitaxial is in conducting base copper nanometer
On piece.The copper nanometer sheet substrate of nanoscale can be relieved the stress that CuO is generated during removal lithium embedded, while nanometer CuO is band-like
Gap between pattern arrangement can also reduce volume expansion bring electrode dusting effect during removal lithium embedded.Especially copper nanometer sheet
Substrate has excellent electric conductivity, can improve conduction of the electronics in electrode material, improves the utilization rate and material of active material
Conductivity, then obtain the lithium ion battery of specific discharge capacity and high rate performance with higher.With nanometer Cu@of the invention
CuO material is lithium ion battery negative material, is to be prepared into 2025 button batteries to electrode with lithium piece, shows good comprehensive
Close chemical property.
The beneficial effects of the present invention are: preparation method and equipment of the invention is simple, technological parameter is controllable and mild condition,
Repeatability is high.Abundant raw material needed for preparing, it is at low cost, it is convenient for scale.The nanometer Cu@CuO negative electrode material of preparation has
Higher specific discharge capacity and stable high rate performance can satisfy increasingly developed portable mobile power supply to height ratio capacity lithium
The demand of ion battery.
Detailed description of the invention
Fig. 1 is the SEM picture of nanometer Cu@CuO material of the present invention；
Fig. 2 is the XRD diagram piece of nanometer Cu@CuO material of the present invention；
Fig. 3 is the TEM picture of nanometer Cu@CuO material of the present invention；
Fig. 4 is the SEM picture of Cu nanometer sheet material of the present invention；
Fig. 5 is 200 charging and discharging curves of the nanometer Cu@CuO material obtained in embodiment 1；
Fig. 6 is voltage-specific capacity relation curve of the nanometer Cu@CuO material obtained in embodiment 2；
Fig. 7 is the high rate performance curve of the nanometer Cu@CuO material obtained in embodiment 3.
Specific embodiment
Combined with specific embodiments below, the present invention is furture elucidated.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art
Member makes various changes or modifications the present invention, and such equivalent forms equally fall within model defined by the application the appended claims
It encloses.
Embodiment 1
The deionized water of 0.4g glucose, 0.2g polyvinylpyrrolidone and 15mL is stirred into 4h at room temperature, is obtained
Liquid is mixed to clarifying.The copper-bath of 0.8mmoL is added thereto, is transferred in hydrothermal reaction kettle at 160 DEG C after stirring 1h
4h is reacted, product centrifugation is successively washed three times with deionized water, dehydrated alcohol, products therefrom is dried in a vacuum drying oven
Obtain copper nanometer sheet.0.025g copper nanometer sheet, 10g water, 0.16g sodium hydroxide, 30% hydrogen peroxide of 0.16g are placed in reaction kettle
Middle stirring 1min, the insulation reaction 6h in 110 DEG C of baking oven.By products therefrom centrifugation, successively use deionized water and dehydrated alcohol
Washing obtains a nanometer Cu@CuO material powder after 50 DEG C of vacuum drying.
The PVDF of the nanometer Cu@CuO material of 75 wt.% obtained, the acetylene black of 15 wt.% and 10 wt.% is mixed equal
It is even, slurry is made, is coated uniformly on copper foil, circular electrode pole piece is stamped into after vacuum drying, is to electrode group with lithium metal
At test cell.Constant current charge-discharge test is carried out to battery, charging/discharging voltage range is 0.01 ~ 3 V, the results showed that, have
Preferable chemical property, Fig. 5 are it under 0.1C current density, and the battery performance of material, specific capacity are after circulation 200 times
620 mAh/g, material have good cyclical stability.
Embodiment 2
The deionized water of 1g glucose, 0.6g polyvinylpyrrolidone and 20mL is stirred into 4h at room temperature, is obtained
Clarify mixed liquid.The copper-bath of 1mmoL is added thereto, is transferred in hydrothermal reaction kettle after stirring 1h and is reacted at 170 DEG C
3h, product centrifugation, is successively washed three times with deionized water, dehydrated alcohol, products therefrom is dried to obtain in a vacuum drying oven
Copper nanometer sheet.0.03g copper nanometer sheet, 6g water, 0.2g sodium hydroxide, 30% hydrogen peroxide of 0.3g are placed in reaction kettle and are stirred
1min, the insulation reaction 8h in 110 DEG C of baking oven.By products therefrom centrifugation, successively using deionized water and dehydrated alcohol washing, in
A nanometer Cu@CuO material powder is obtained after 50 DEG C of vacuum drying.
The PVDF of the nanometer Cu@CuO material of 75 wt.% obtained, the acetylene black of 15 wt.% and 10 wt.% is mixed equal
It is even, slurry is made, is coated uniformly on copper foil, circular electrode pole piece is stamped into after vacuum drying, is to electrode group with lithium metal
At test cell.Constant current charge-discharge test is carried out to battery, charging/discharging voltage range is 0.01 ~ 3 V, the results showed that, have
Preferable chemical property, Fig. 6 are it under 0.2C current density, and charge and discharge cycles 200 times voltage-specific volume magnitude relations are bent
Line, specific capacity are still maintained at 580 mAh/g or so, it is seen that this material has good cyclical stability.
Embodiment 3
The deionized water of 1.5g glucose, 1g polyvinylpyrrolidone and 45mL is stirred into 4h at room temperature, is obtained
Clarify mixed liquid.The copper-bath of 1.8mmoL is added thereto, is transferred in hydrothermal reaction kettle at 180 DEG C instead after stirring 1h
4.5h is answered, product centrifugation is successively washed three times with deionized water, dehydrated alcohol, products therefrom is dried in a vacuum drying oven
Obtain copper nanometer sheet.0.04g copper nanometer sheet, 10g water, 0.3g sodium hydroxide, 30% hydrogen peroxide of 0.5g are placed in reaction kettle
Stir 3min, the insulation reaction 12h in 110 DEG C of baking oven.It is washed by products therefrom centrifugation, successively using deionized water and dehydrated alcohol
It washs, obtain a nanometer Cu@CuO material powder after 60 DEG C of vacuum drying.
The PVDF of the nanometer Cu@CuO material of 75 wt.% obtained, the acetylene black of 15 wt.% and 10 wt.% is mixed equal
It is even, slurry is made, is coated uniformly on copper foil, circular electric pole piece is stamped into after vacuum drying, is to be formed to electrode with lithium metal
Test cell.Fig. 7 be its to battery carry out high rate performance test, the results showed that, Cu@CuO material by 0.1C, 0.2C,
After 0.3C, 0.5C, 1C, 2C circulation, its capacity is still able to maintain when returning 0.2C circulation, big variation does not occur, illustrate that material has
There is preferable high rate performance.
Claims (2)
1. the preparation method of a kind of nanometer of Cu@CuO material, it is characterised in that: the method is first to prepare thickness by self-assembly method
For 600-700nm, the copper nanometer sheet that diameter is 20-200 μm, then resulting copper nanometer sheet is passed through into hydrothermal treatment process, preparation
Nanometer Cu@CuO negative electrode material；Specific method the following steps are included:
(1) water, glucose, polyvinylpyrrolidone, than mixing, stirring 3 hours or more, are obtained clarifying mixed liquid by certain mass；
(2) under stirring conditions, the clarification in step (1) mixes in liquid and copper sulfate solution is added dropwise, and 30- is stirred at room temperature
After 60min, it is transferred in hydrothermal reaction kettle and reacts 2.5-4h at 160-200 DEG C；
(3) it washed by the obtained product centrifugation of step (2), successively using deionized water and dehydrated alcohol, obtained after vacuum drying
To copper nanometer sheet；
(4) a certain amount of water, sodium hydroxide, hydrogenperoxide steam generator is added into copper nanometer sheet obtained by step (3), it is anti-is put into hydro-thermal
It answers in kettle, the insulation reaction 6-14h in 100-150 DEG C of baking oven；
(5) after room temperature is cooling, by the centrifugation of step (4) products therefrom, successively using deionized water and dehydrated alcohol washing, vacuum
A nanometer Cu@CuO material powder is obtained after drying,
Wherein: acquired solution in step (1), the mass ratio control of water, glucose, polyvinylpyrrolidone is in 25:0.5-1:
0.2-1,
Wherein: the mass ratio of the material of copper sulphate and glucose in step (1) is 1:2.5-5 in step (2), in which: in step (4)
The mass ratio of water, sodium hydroxide and hydrogen peroxide is 50-150:1.6-8:4.5-27.8,
Wherein: in step (4), the molar ratio of copper nanometer sheet and sodium hydroxide is 0.03-0.78:4-20,
Wherein: drying described in step (5) is vacuum drying, and it is 40~80 DEG C that temperature, which is arranged, in baking oven.
2. a kind of lithium ion battery, it is characterised in that: the negative electrode material of the battery uses nanometer Cu@CuO described in claim 1
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611141213.1A CN106531966B (en) | 2016-12-12 | 2016-12-12 | Nanometer and its is applied Cu@CuO material preparation method in lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611141213.1A CN106531966B (en) | 2016-12-12 | 2016-12-12 | Nanometer and its is applied Cu@CuO material preparation method in lithium ion battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106531966A CN106531966A (en) | 2017-03-22 |
| CN106531966B true CN106531966B (en) | 2019-06-11 |
Family
ID=58342185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611141213.1A Active CN106531966B (en) | 2016-12-12 | 2016-12-12 | Nanometer and its is applied Cu@CuO material preparation method in lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106531966B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374167B (en) * | 2018-02-13 | 2020-06-05 | 桂林理工大学 | Hydrothermal method for preparing Cu2Method for preparing O nano film |
| CN112941556B (en) * | 2021-01-27 | 2023-09-15 | 国家纳米科学中心 | Copper-based solid material and preparation method and application thereof |
| CN112974831B (en) * | 2021-03-05 | 2022-04-19 | 西北有色金属研究院 | Cu-Cu with nano array structure3Preparation method of P material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003272644A (en) * | 2002-03-15 | 2003-09-26 | Toshiba Corp | Nonaqueous electrolyte battery |
| CN102637860A (en) * | 2012-04-25 | 2012-08-15 | 浙江凯恩电池有限公司 | CuO/Cu composite anode material used for lithium ion battery as well as preparation method and application thereof |
| CN102856539A (en) * | 2012-04-25 | 2013-01-02 | 浙江凯恩电池有限公司 | Composite anode material based on CuO for lithium ion battery, its preparation method and application |
| CN103170647A (en) * | 2013-04-03 | 2013-06-26 | 浙江理工大学 | Method for forming copper nanometer sheet through self-assembly |
-
2016
- 2016-12-12 CN CN201611141213.1A patent/CN106531966B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003272644A (en) * | 2002-03-15 | 2003-09-26 | Toshiba Corp | Nonaqueous electrolyte battery |
| CN102637860A (en) * | 2012-04-25 | 2012-08-15 | 浙江凯恩电池有限公司 | CuO/Cu composite anode material used for lithium ion battery as well as preparation method and application thereof |
| CN102856539A (en) * | 2012-04-25 | 2013-01-02 | 浙江凯恩电池有限公司 | Composite anode material based on CuO for lithium ion battery, its preparation method and application |
| CN103170647A (en) * | 2013-04-03 | 2013-06-26 | 浙江理工大学 | Method for forming copper nanometer sheet through self-assembly |
Non-Patent Citations (1)
| Title |
|---|
| Facile fabrication of CuO nanosheets on Cu substrate as anode materials for electrochemical energy storage;YangLiu，YunQiao等;《Joutnal of Alloys and Compounds》;20131016;第586卷(第6期);第208-215页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106531966A (en) | 2017-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102231435B (en) | Method for preparing electrode material CuO (cupric oxide) film of lithium ion battery on copper substrate | |
| CN108598394B (en) | Carbon-coated titanium manganese phosphate sodium microspheres and preparation method and application thereof | |
| CN105118977B (en) | V with the three-dimensional winding arrangement of nano wire2O5Hollow micron thread ball and its preparation method and application | |
| CN104852028A (en) | Lithium titanate/graphene composite cathode material for lithium ion battery | |
| CN103390748B (en) | A kind of preparation method of alumina-coated lithium cobaltate cathode material | |
| CN110304612A (en) | A kind of two ferrous selenide nanometer sheets for lithium ion battery negative material | |
| CN104091922B (en) | Mo0.5W0.5S2Nanometer watt/Graphene electrochemistry storage sodium combination electrode and preparation method | |
| CN106531966B (en) | Nanometer and its is applied Cu@CuO material preparation method in lithium ion battery | |
| CN106299344B (en) | A kind of sodium-ion battery nickel titanate negative electrode material and preparation method thereof | |
| CN108987688B (en) | Carbon-based composite material, preparation method and sodium ion battery | |
| CN105810903B (en) | A kind of germanic acid calcium/graphene nanocomposite material and preparation method thereof | |
| CN105552336A (en) | Hydrothermal method synthesized MnO2/NCNTs nanocomposite and preparation method thereof | |
| CN104466155A (en) | Method for preparing high-coulombic-efficiency lithium ion battery negative pole material chrysanthemum-shaped nanometer titania | |
| CN112331933A (en) | Long-cycle-life cathode of aqueous zinc secondary battery and preparation and application thereof | |
| CN108695505B (en) | Lithium ion battery composite negative electrode material and preparation method thereof | |
| CN105047870A (en) | Nitrogen-doped carbon-coated silicon composite material and preparation method thereof | |
| CN104241628A (en) | Method for preparing titanium-dioxide-modified ferric oxide microspheres as well as produced product and use of titanium-dioxide-modified ferric oxide microspheres | |
| CN108598405B (en) | Preparation method of three-dimensional graphene tin oxide carbon composite negative electrode material | |
| CN108217725B (en) | Hydrated basic zinc pyrovanadate (Zn)3V2O7(OH)2·2H2Preparation method and application of O) material | |
| CN108281620B (en) | Preparation method of negative electrode material titanium dioxide of sodium-ion battery | |
| CN109346717A (en) | A kind of self-supporting NaxMnO2Array sodium-ion battery positive material and preparation method thereof | |
| CN103107307A (en) | Water-solution lithium ion battery negative pole material and preparation method thereof | |
| CN109467080A (en) | A kind of graphitization hollow carbon method for preparing microsphere can be used for carrying sulphur and its application | |
| CN106315665B (en) | A kind of GeO for preparing high charge-discharge capacity2The method of sub-micrometer rod | |
| CN108390062A (en) | A kind of preparation method and applications of sodium-ion battery cathode stainless (steel) wire load molybdenum disulfide nano sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |