CN110165173A - A kind of preparation method of sodium-ion battery flexible transition metal sulfide negative electrode material - Google Patents
A kind of preparation method of sodium-ion battery flexible transition metal sulfide negative electrode material Download PDFInfo
- Publication number
- CN110165173A CN110165173A CN201910415365.3A CN201910415365A CN110165173A CN 110165173 A CN110165173 A CN 110165173A CN 201910415365 A CN201910415365 A CN 201910415365A CN 110165173 A CN110165173 A CN 110165173A
- Authority
- CN
- China
- Prior art keywords
- transition metal
- negative electrode
- electrode material
- sodium
- ion battery
- 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.)
- Granted
Links
Classifications
-
- 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
- H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
-
- 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
-
- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
-
- 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)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of preparation methods of sodium-ion battery flexible transition metal sulfide negative electrode material, described method includes following steps: (1) weighing the in the mixed solvent that water-soluble organic solvent and deionized water composition is added in glucose, transition metal salt and thioacetamide, it is evenly dispersed, obtain the solution that mass fraction is 3%~10%；(2) melamine sponge is soaked in solution described in step (1), takes out, is placed in oven and dried 12h, obtain the transient metal complex of melamine sponge load；(3) transient metal complex that obtained melamine sponge loads is placed in tube furnace, is heat-treated 1 ~ 4h, obtains flexible transition metal sulfide negative electrode material.Preparation method of the invention is simple, is easy to large-scale production, and flexible electrode obtained is not necessarily to binder, conductive agent and metal collector, and has excellent cyclical stability and high rate performance, has broad application prospects in flexible device field.
Description
Technical field
The present invention relates to the preparations of cell flexible negative electrode material, and in particular to a kind of sodium-ion battery flexible transition gold
Belong to the preparation method of sulfide negative electrode material.
Background technique
Lithium ion battery has been widely used in energy storage fields such as portable electronic device, electric cars.So
And lithium resource is relatively deficient in nature so that the manufacturing cost of lithium ion battery gradually rises, in terms of extensive energy storage by
Limitation is arrived.Due to abundant raw material, cheap, sodium-ion battery is considered as energy storage device of new generation, is expected to replace
Lithium ion battery and be widely used in the fields such as electronic apparatus and large-scale energy storage device.Due to Na+Radius ratio Li+Greatly, because
The widely used graphite cathode material of this lithium ion battery has not been suitable for sodium-ion battery.Therefore exploitation sodium-ion battery cathode
Material can push the development of sodium-ion battery, promote the application of sodium-ion battery.Transient metal sulfide negative electrode material is theoretical
Capacity is high, and synthesizes simply, there is huge application prospect in sodium-ion battery.Furthermore with the flexible electrical philosophical works, flexibility
The development of mobile phone and wearable electronic wrist-watch and some portable medical electronic devices, the demand to flexible battery is more and more
It is high.Therefore a kind of high, foldable, flexible anode material of lithium-ion battery of capacity is researched and developed, had important practical significance.
Summary of the invention
In order to solve problem and shortage of the existing technology, it is flexible that the object of the present invention is to provide a kind of sodium-ion batteries
The preparation method of transient metal sulfide negative electrode material, this method are simple and easy.
What the purpose of the present invention was achieved through the following technical solutions.
The present invention provides a kind of preparation methods of sodium-ion battery flexible transition metal sulfide negative electrode material, including such as
Lower step:
(1) glucose, transition metal salt and thioacetamide are weighed by suitable for 1:0.1~10:0.01~10 in mass ratio
Sequence be added water-soluble organic solvent and deionized water composition in the mixed solvent, it is evenly dispersed, obtain mass fraction be 3%~
10% solution；
(2) melamine sponge is soaked in solution described in step (1), is taken out, dry 1 in 60~80 DEG C of baking ovens
~12h obtains the transient metal complex of melamine sponge load；
(3) by obtained melamine sponge load transient metal complex be placed in tube furnace, flowing atmosphere, 300
At a temperature of~800 DEG C, it is heat-treated 1~4h, obtains flexible transition metal sulfide negative electrode material.
Preferably, the anion of the transition metal salt in the step (1) includes NO3 -、CO3 2-、CH3COO-、SO4 2-Extremely
Few one kind.
Preferably, the cation of the transition metal salt in the step (1) includes Mn2+、Fe3+、Co2+、Ni2+、Cu2+、Zn2+
At least one of.
Preferably, in the step (1) water-soluble organic solvent include carbon atom number be 1~6 alcohols in one
Kind.
Preferably, the volume ratio of water-soluble organic solvent described in the step (1) and deionized water be 1:0.1~
10。
Preferably, the melamine sponge of step (2) impregnates 0.01~1h in step (1) resulting solution.
Preferably, the size of the melamine sponge in the step (2) is 300 × 300cm.
Preferably, the gas that the flowing atmosphere in the step (3) is passed through includes hydrogen, argon gas, at least one in nitrogen
Kind.
Preferably, the tube furnace in the step (3) rises to described 300~800 under the heating rate of 2~5 DEG C/min
℃。
Compared with prior art, the present invention has the following advantages and technical effect:
(1) the present invention provides a kind of simple effective methods, i.e., absorb different transition metal using melamine sponge
The solution of salt has synthesized flexible transition metal sulfide negative electrode material that is low in cost, being easy to large-scale production by calcining.
(2) flexible transition metal sulfide negative electrode material of the invention is self-supporting material, without using binder, leads
Electric agent and coating process, can be easy to industrialized production directly as anode material of lithium-ion battery.
(3) in flexible transition metal sulfide negative electrode material of the invention, the melamine after charing is advantageous as substrate
Flexibility when keeping battery in folded bent；Meanwhile be grown in the transient metal sulfide in substrate can increase it is flexible negative
The storage volume of pole, the flexible transition metal sulfide negative electrode material shown in sodium-ion battery excellent cycle performance and
High rate performance.
Detailed description of the invention
Fig. 1 is the flexible cobalt sulfide negative electrode material SEM figure prepared in embodiment 1；
Fig. 2 is that the first charge-discharge that the flexible cobalt sulfide negative electrode material current density prepared in embodiment 1 is 100mA/g is bent
Line；
Cycle performance figure when being 1000mA/g that Fig. 3 is the flexible cobalt sulfide negative electrode material current density prepared in embodiment 1；
Fig. 4 is the high rate performance curve graph of the flexible cobalt sulfide negative electrode material prepared in embodiment 1；
Fig. 5 is the flexible manganese sulfide negative electrode material SEM figure prepared in embodiment 2；
Cycle performance figure when being 1000mA/g that Fig. 6 is the flexible manganese sulfide negative electrode material current density prepared in embodiment 2；
Fig. 7 is the flexible nickel sulfide negative electrode material SEM figure prepared in embodiment 3；
Cycle performance figure when being 1000mA/g that Fig. 8 is the flexible nickel sulfide negative electrode material current density prepared in embodiment 3.
Specific embodiment
Present invention be described in more detail by the following examples, but is not limited to the embodiment.
Experimental method in following embodiments is unless otherwise instructed conventional method.
Embodiment 1
A kind of preparation method of sodium-ion battery flexible transition metal sulfide negative electrode material is present embodiments provided, including
Following steps:
1. it weighs 1kg glucose and 1kg cobalt nitrate is put into the in the mixed solvent stirring and dissolving of methanol and deionized water composition,
Wherein the volume ratio of methanol and deionized water is 1:5.
2. the thioacetamide that 1kg is added continues magnetic agitation 1h, it is configured to the solution that mass fraction is 3%.
3. the melamine sponge of 300*300cm is impregnated 30min in the above solution.
4. taking out melamine sponge, then the dry 1h in 60 DEG C of baking oven, can be obtained the load of melamine sponge
Cobalt complex.
5. under an argon atmosphere by the complex of the cobalt of above-mentioned melamine sponge load, with the heating rate of 5 DEG C/min
800 DEG C of calcining 4h are warming up to, flexible cobalt sulfide negative electrode material can be obtained.
The SEM figure of the resulting flexible cobalt sulfide negative electrode material of this example is as shown in Figure 1, cobalt sulfide as seen from Figure 1
Grain is equably grown on the melamine sponge skeleton of charing.
It is cathode by flexible cobalt sulfide material, is anode with metallic sodium, glass fibre is diaphragm and NaClO4For electrolyte,
It is assembled into sodium-ion battery under an argon atmosphere.The battery uses current density to carry out head between 0.01~3.0V for 100mA/g
Secondary charge and discharge, charging and discharging curve illustrate to vulcanize as shown in Fig. 2, occur the charge and discharge platform of cobalt sulfide in charging and discharging curve
Cobalt takes part in the deintercalation of sodium ion.The battery is carried out to the test of cycle performance under the current density of 1000mA/g, is recycled
Curve passes through as shown in figure 3, from can be seen that the flexibility cobalt sulfide material in cyclic curve under the current density of 1000mA/g
It crosses 100 circulating and reversible capacity and is up to 415mAh/g.The battery is carried out to the test of high rate performance, high rate performance curve is as schemed
Shown in 4.It can be seen from the figure that the battery after load cobalt sulfide has superior high rate performance.In the electric current of 3000mA/g
Under density, the capacity of the flexibility cobalt sulfide material is 295mAh/g.
Embodiment 2
A kind of preparation method of sodium-ion battery flexible transition metal sulfide negative electrode material is present embodiments provided, including
Following steps:
1. it weighs 2kg glucose and 8kg manganese acetate is put into the in the mixed solvent stirring and dissolving of ethyl alcohol and deionized water composition,
Wherein the volume ratio of ethyl alcohol and deionized water is 1:2.
2. the thioacetamide that 18kg is added continues magnetic agitation 1h, it is configured to the solution that mass fraction is 8%.
3. the melamine sponge of 300*300cm is impregnated 10min in the above solution.
4. taking out melamine sponge, then the dry 12h in 80 DEG C of baking oven, can be obtained the load of melamine sponge
Manganese complex.
5. in a hydrogen atmosphere by the complex of the manganese of above-mentioned melamine sponge load, with the heating rate of 2 DEG C/min
600 DEG C of calcining 4h are warming up to, flexible manganese sulfide negative electrode material can be obtained.
The SEM figure of the resulting flexible manganese sulfide negative electrode material of this example is as shown in figure 5, manganese sulfide as seen from Figure 5
Grain is equably grown on the melamine sponge skeleton of charing.
Flexibility vulcanization manganese material is negative pole, is anode with metallic sodium, glass fibre is diaphragm and NaClO4For electrolyte,
It is assembled into sodium-ion battery under an argon atmosphere.The battery is carried out to the survey of cycle performance under the current density of 1000mA/g
Examination, cyclic curve is as shown in fig. 6, as can be seen that the flexibility vulcanizes manganese material in the electric current of 1000mA/g from cyclic curve
Under density, 460mAh/g is up to by 100 circulating and reversible capacity.
Embodiment 3
A kind of preparation method of sodium-ion battery flexible transition metal sulfide negative electrode material is present embodiments provided, including
Following steps:
1. weighing 2kg glucose and 10kg nickel sulfate is put into ethylene glycol and the in the mixed solvent stirring of deionized water composition is molten
Solution, wherein the volume ratio of ethylene glycol and deionized water is 1:1.
2. the thioacetamide that 20kg is added continues magnetic agitation 1h, it is configured to the solution that mass fraction is 10%.
3. the melamine sponge of 300*300cm is impregnated 5min in the above solution.
4. taking out melamine sponge, then the dry 12h in 60 DEG C of baking oven, can be obtained the load of melamine sponge
Nickel complex.
5. in a nitrogen atmosphere by the complex of the nickel of above-mentioned melamine sponge load, with the heating rate of 3 DEG C/min
500 DEG C of calcining 2h are warming up to, flexible nickel sulfide negative electrode material can be obtained.
The SEM figure of the resulting flexible nickel sulfide negative electrode material of this example is as shown in fig. 7, nickel sulfide as seen from Figure 7
Grain is equably grown on the melamine sponge skeleton after charing.It is negative pole with flexibility vulcanization nickel material, is with metallic sodium
Anode, glass fibre are diaphragm and NaClO4For electrolyte, it is assembled into sodium-ion battery under an argon atmosphere.The battery is existed
The test of cycle performance is carried out under the current density of 1000mA/g, cyclic curve is as shown in figure 8, can from cyclic curve
Out, which vulcanizes nickel material under the current density of 1000mA/g, is up to 460mAh/g by 100 circulating and reversible capacity.
Comparative example 1
In a nitrogen atmosphere by melamine sponge, 500 DEG C of calcining 2h are warming up to the heating rate of 3 DEG C/min
Obtain flexible negative electrode material.It is anode with metallic sodium using the flexible material as cathode, glass fibre is diaphragm and NaClO4For electrolysis
Liquid is assembled into sodium-ion battery under an argon atmosphere.The battery is subjected to cycle performance under the current density of 1000mA/g
Test, for the flexibility negative electrode material under the current density of 1000mA/g, circulating and reversible capacity is only 50mAh/g.The flexibility is negative
Pole material carries out the test of high rate performance, and under the current density of 3000mA/g, the reversible capacity of the flexible material is only battery
3mAh/g.The present invention provides a kind of preparation method of sodium-ion battery flexible transition metal sulfide negative electrode material, this method
The transient metal sulfide being grown in substrate can increase the storage volume of flexible cathode, flexible transition metal vulcanization
Object negative electrode material shows excellent cycle performance and high rate performance in sodium-ion battery.
The foregoing is only a preferred embodiment of the present invention, not does restriction in any form to the present invention.It is all
Any equivalent variation that those skilled in the art makes above-described embodiment using technical solution of the present invention is modified or is drilled
Become etc., all of which are still within the scope of the technical scheme of the invention.
Claims (9)
1. a kind of preparation method of sodium-ion battery flexible transition metal sulfide negative electrode material, which is characterized in that including as follows
Step:
(1) in mass ratio it is 1:(0.1 ~ 10): (0.01 ~ 10) weighs glucose, transition metal salt and thioacetamide and by suitable
Sequence be added water-soluble organic solvent and deionized water composition in the mixed solvent, it is evenly dispersed, obtain mass fraction be 3%~
10% solution；
(2) melamine sponge is soaked in solution described in step (1), is taken out, dry 1 ~ 12 in 60~80 DEG C of baking ovens
H obtains the transient metal complex of melamine sponge load；
(3) by obtained melamine sponge load transient metal complex be placed in tube furnace, flowing atmosphere, 300 ~ 800
At a temperature of DEG C, 1 ~ 4h is calcined, flexible transition metal sulfide negative electrode material is obtained.
2. the preparation method of sodium-ion battery flexible transition metal sulfide negative electrode material according to claim 1, special
Sign is that the anion of the transition metal salt in the step (1) includes NO3 -、CO3 2-、CH3COO-、SO4 2-In at least one
Kind.
3. the preparation method of sodium-ion battery flexible transition metal sulfide negative electrode material according to claim 1, special
Sign is that the cation of the transition metal salt in the step (1) includes Mn2+、Fe3+、Co2+、Ni2+、Cu2+、Zn2+In at least
It is a kind of.
4. the preparation method of sodium-ion battery flexible transition metal sulfide negative electrode material according to claim 1, special
Sign is that water-soluble organic solvent includes one of the alcohols that carbon atom number is 1 ~ 6 in the step (1).
5. the preparation method of sodium-ion battery flexible transition metal sulfide negative electrode material according to claim 1, special
Sign is that the volume ratio of water-soluble organic solvent described in the step (1) and deionized water is 1:(0.1 ~ 10).
6. the preparation method of sodium-ion battery flexible transition metal sulfide negative electrode material according to claim 1, special
Sign is that the melamine sponge of step (2) impregnates 0.01 ~ 1h in step (1) resulting solution.
7. the preparation method of sodium-ion battery flexible transition metal sulfide negative electrode material according to claim 1, special
Sign is that the size of the melamine sponge in the step (2) is 300 × 300cm.
8. the preparation method of sodium-ion battery flexible transition metal sulfide negative electrode material according to claim 1, special
Sign is that the gas that the flowing atmosphere in the step (3) is passed through includes at least one of hydrogen, argon gas, nitrogen.
9. the preparation method of sodium-ion battery flexible transition metal sulfide negative electrode material according to claim 1, special
Sign is that the tube furnace in the step (3) rises to described 300 ~ 800 DEG C under the heating rate of 2~5 DEG C/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910415365.3A CN110165173B (en) | 2019-05-17 | 2019-05-17 | Preparation method of flexible transition metal sulfide negative electrode material of sodium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910415365.3A CN110165173B (en) | 2019-05-17 | 2019-05-17 | Preparation method of flexible transition metal sulfide negative electrode material of sodium ion battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110165173A true CN110165173A (en) | 2019-08-23 |
| CN110165173B CN110165173B (en) | 2022-03-29 |
Family
ID=67631376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910415365.3A Active CN110165173B (en) | 2019-05-17 | 2019-05-17 | Preparation method of flexible transition metal sulfide negative electrode material of sodium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110165173B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05314982A (en) * | 1992-05-07 | 1993-11-26 | Matsushita Electric Ind Co Ltd | Alkaline storage battery and manufacture thereof |
| CN101916854A (en) * | 2010-08-30 | 2010-12-15 | 上海交通大学 | Preparation method of zinc sulfide/carbon composite material for negative electrode of lithium ion battery |
| CN105140513A (en) * | 2015-07-23 | 2015-12-09 | 江苏新光环保工程有限公司 | MoS2/C lithium ion battery cathode composite material synthesized by taking carbohydrate as carbon source, and preparation method for MoS2/C lithium ion battery cathode composite material |
| CN107895786A (en) * | 2017-11-15 | 2018-04-10 | 晋中学院 | Flexible self-supporting SnS/ carbon foam composites and its preparation method and application |
-
2019
- 2019-05-17 CN CN201910415365.3A patent/CN110165173B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05314982A (en) * | 1992-05-07 | 1993-11-26 | Matsushita Electric Ind Co Ltd | Alkaline storage battery and manufacture thereof |
| CN101916854A (en) * | 2010-08-30 | 2010-12-15 | 上海交通大学 | Preparation method of zinc sulfide/carbon composite material for negative electrode of lithium ion battery |
| CN105140513A (en) * | 2015-07-23 | 2015-12-09 | 江苏新光环保工程有限公司 | MoS2/C lithium ion battery cathode composite material synthesized by taking carbohydrate as carbon source, and preparation method for MoS2/C lithium ion battery cathode composite material |
| CN107895786A (en) * | 2017-11-15 | 2018-04-10 | 晋中学院 | Flexible self-supporting SnS/ carbon foam composites and its preparation method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110165173B (en) | 2022-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105742602B (en) | A kind of sodium-ion battery cathode Sn/MoS2/ C composite and preparation method thereof | |
| CN110289416B (en) | Preparation method of bismuth-molybdenum bimetallic sulfide as negative electrode material of sodium-ion battery | |
| CN107611411B (en) | Preparation method and application of three-dimensional hierarchical porous nitrogen-doped carbon-coated silicon composite material | |
| CN105789584A (en) | Cobalt selenide/carbon sodium ion battery composite negative electrode material as well as preparation method and application of cobalt selenide/carbon-sodium ion battery composite negative electrode material | |
| CN106532012A (en) | Sulfur-biomass carbon/transition metal composite electrode material and preparation method and application thereof | |
| CN108777294B (en) | Carbon-supported porous spherical MoN composed of nanosheets and application of carbon-supported porous spherical MoN as negative electrode material in lithium battery | |
| CN107768645B (en) | Porous nitrogen-doped carbon nanosheet composite negative electrode material and preparation method thereof | |
| CN111092222B (en) | Cobalt-iron-copper sulfide negative electrode material of sodium ion battery and preparation method thereof | |
| CN113130851B (en) | ASx/BSyComposite heterogeneous electrode material and preparation method and application thereof | |
| CN109713279A (en) | The preparation method of the lithium ion battery negative material of foam copper oxide-base | |
| CN109873134A (en) | Iron-based chalcogenide, electrode material, the sodium-ion battery and preparation method thereof of in-situ carbon encapsulation | |
| CN104659360A (en) | Nickel-cobalt oxide electrode material as well as preparation method and applications thereof | |
| CN106299344B (en) | A kind of sodium-ion battery nickel titanate negative electrode material and preparation method thereof | |
| CN102280617A (en) | Carbon material modified composite lithium manganese oxide cathode material applied to lithium ion battery and preparation method thereof | |
| CN106450193A (en) | Nickel sulfide/graphene composite material and preparation method and application thereof | |
| CN110085834A (en) | A kind of preparation method of two nickelous selenide high-performance anode material of lithium-ion batteries of Fe2O3 doping | |
| CN110752360B (en) | S-Ni3Preparation method of C/NiO composite lithium-sulfur battery positive electrode material | |
| CN109279663B (en) | Borate sodium-ion battery negative electrode material and preparation and application thereof | |
| CN113644269B (en) | Preparation method of nitrogen-doped hard carbon material, product and application thereof | |
| CN106898754A (en) | The application and the material of hetero atom in lithium phosphorus battery carbon phosphate material is prepared and preparation method thereof | |
| CN110311135A (en) | A kind of metal sulfide hollow ball that can load sulphur, preparation method and application | |
| CN109467080A (en) | A kind of graphitization hollow carbon method for preparing microsphere can be used for carrying sulphur and its application | |
| CN102983318B (en) | Material for negative electrode of non-aqueous secondary battery, preparation method of material, non-aqueous secondary battery and negative electrode thereof | |
| CN108091874A (en) | A kind of preparation method of the nanometer nickel-cobalt sulphur particle as lithium-sulphur cell positive electrode | |
| CN107946545B (en) | Negative plate of lead-carbon battery |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |