CN107394177A - A kind of sodium-ion battery negative pole bicarbonate nickel/graphene composite material and preparation method and application - Google Patents
A kind of sodium-ion battery negative pole bicarbonate nickel/graphene composite material and preparation method and application Download PDFInfo
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- CN107394177A CN107394177A CN201710652052.0A CN201710652052A CN107394177A CN 107394177 A CN107394177 A CN 107394177A CN 201710652052 A CN201710652052 A CN 201710652052A CN 107394177 A CN107394177 A CN 107394177A
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- 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
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- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
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- 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
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
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- 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
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- 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 present invention provides a kind of sodium-ion battery negative pole bicarbonate nickel/graphene composite material and preparation method and application.The present invention uses hydrothermal method, and using graphene oxide, divalent nickel salt, reducing agent and water soluble carbonate or urea as raw material, ferrous carbonate/graphene composite material is prepared.The composite gauge is homogeneous, and applied to sodium ion negative pole, its chemical property is preferable, and has excellent high rate performance and cyclical stability.In addition, preparation method of the present invention workable, favorable reproducibility, and products obtained therefrom steady quality.
Description
Technical field
The present invention relates to a kind of sodium-ion battery negative pole with bicarbonate nickel/graphene composite material and preparation method thereof with answering
With belonging to electrochemical technology field.
Background technology
Compared with lithium ion battery, sodium-ion battery has the advantage that sodium resource reserve is abundant, the prices of raw materials are cheap,
Extensive energy storage field has larger application prospect.Anode material of lithium-ion battery, as battery important component it
One, there is important influence to its performance.At present, intercalation mechanisms storage sodium negative material due to its higher cyclical stability by
To more concern, mainly including hard carbon, Na2Ti3O7And Li4Ti5O12Deng.In these storage sodium negative materials, Na2Ti3O7With
Li4Ti5O12Specific capacity be typically smaller than 200mAh g-1, it is difficult to meet the requirement of Large Copacity energy-storage battery.The storage sodium capacity of hard carbon
Although 300mAh g can be reached-1, but its high rate performance is poor, and its most capacity is less than in discharge voltage
0.1V(vs.Na/Na+) region in realize, the deposition potential of the very close metallic sodium of the current potential, electrode surface may be caused
Sodium dendrite is formed, brings the potential safety hazard of sternness.Therefore, finding has height ratio capacity, preferable high rate performance and stable circulation
The new sodium cell negative pole material of property and high security is significant.
At present, have been reported in the prior art by preparing graphene composite material, and be applied to sodium-ion battery
Negative material, so as to improve the specific capacity of sodium-ion battery, high rate performance and cycle performance.Such as Chinese patent literature
CN105789592A discloses a kind of three-dimensional grapheme combination electrode, directly raw on matrix using three-dimensional porous foams nickel as matrix
Long graphene, direct growth flower-shape Ni on described graphene3S2.The three-dimensional grapheme based combined electrode that the invention is prepared
Without any conductive agent and binding agent, it is to first pass through chemical vapour deposition technique, is then prepared by hydro-thermal method；But step compared with
To be cumbersome, and when prepared material is used for sodium-ion battery, specific capacity is not good enough.
Bicarbonate nickel is to study more lithium ion battery negative material of shifting to new management mechanisms at present, has higher storage lithium theoretical
Capacity (~300mAh g-1, based on conversion reaction), suitable electric discharge
Voltage (~1.0V), and easily prepare, the advantages that environmental pollution is small.It is applied to sodium on bicarbonate nickel however, yet there are no
The report of ion battery cathode material.But bicarbonate nickel there may be in cyclic process as anode material of lithium-ion battery
Volume Changes cause greatly the shortcomings that structural instability and low conductance.
Therefore, in order to solve the above problems, the present invention is proposed.
The content of the invention
In order to make up the deficiency of existing anode material of lithium-ion battery, the present invention provides a kind of sodium-ion battery negative pole carbon
Sour hydrogen nickel/graphene composite material and preparation method thereof.The preparation method of the composite is simple, workable, reappearance
It is good, and products obtained therefrom steady quality.
The present invention also provides a kind of application of bicarbonate nickel/graphene composite material, and the composite is applied to sodium ion
Cell negative electrode material can effectively improve charge-discharge magnification and cycle performance.
Technical scheme is as follows：
A kind of sodium-ion battery negative pole bicarbonate nickel/graphene composite material, the composite be bicarbonate nickel and
The composite powder material of graphene, the mass content of bicarbonate nickel is 60~95% in the composite powder material.
According to currently preferred, the mass content of bicarbonate nickel is 80~95% in the composite powder material.
According to currently preferred, the microscopic appearance of the bicarbonate nickel/graphene composite material is：Bicarbonate nickel nanometer
Particle uniform load is on graphene film；The particle diameter of the bicarbonate nano nickel particles is 10nm~5 μm；Preferably, the carbon
The particle diameter of sour hydrogen nano nickel particles is 10~500nm.
The preparation method of above-mentioned sodium-ion battery negative pole bicarbonate nickel/graphene composite material, including step are as follows：
Graphene oxide is scattered in deionized water, adds divalent nickel salt, reducing agent and water soluble carbonate or urea,
It is well mixed, obtain reaction solution；Hydro-thermal reaction 1~48 hour at a temperature of 70~200 DEG C, scrubbed, dry bicarbonate nickel/stone
Black alkene composite.
According to the present invention, the graphene oxide is commercially available to be obtained or is prepared according to prior art.
According to currently preferred, the ratio of the amount of the quality of graphene oxide described in reaction solution and the material of divalent nickel salt
For 1：0.01-0.5g/mol；Preferably, the ratio of the amount of the material of the quality of the graphene oxide and divalent nickel salt is 1：
0.02-0.2g/mol。
According to currently preferred, divalent nickel salt molar concentration described in reaction solution is 0.01-0.25mol/L；Preferably,
The divalent nickel salt molar concentration is 0.025-0.125mol/L.
According to currently preferred, the thing of reducing agent described in reaction solution, water soluble carbonate or urea and divalent nickel salt
The amount ratio of matter is 0.5-1.5：5-25：1-5；Preferably, the thing of the reducing agent, water soluble carbonate or urea and divalent nickel salt
The ratio of the amount of matter is 0.5-1.5：5-10：1-3.
According to currently preferred, the divalent nickel salt is one kind in nickel nitrate, nickel chloride, nickel sulfate or nickel acetate.
According to currently preferred, the reducing agent is one kind in citric acid, glucose or ascorbic acid.
According to currently preferred, the water soluble carbonate is ammonium carbonate or sodium carbonate；Preferably, the water-soluble carbon
Hydrochlorate is ammonium carbonate.
According to currently preferred, it using molar concentration is 0.05-1.25molL that the water soluble carbonate, which is,-1It is water-soluble
The acid carbonate aqueous solution.
Preferably, it is as follows to include step for the preparation method of the reaction solution：Graphene oxide is scattered in deionized water,
Divalent nickel salt, reducing agent are added, after dissolving is well mixed, rapidly joins carbonate aqueous solution, is well mixed, obtains reaction solution.
According to currently preferred, the hydrothermal temperature is 160~180 DEG C, and the reaction time is 2~6 hours.
According to currently preferred, the drying condition is：In atmosphere or under vacuum condition, 60-90 DEG C of dry 6-24
Hour.
The application of above-mentioned sodium-ion battery negative pole bicarbonate nickel/graphene composite material, as sodium-ion battery negative pole
Materials application is in sodium-ion battery；The sodium-ion battery, including using bicarbonate nickel/graphene composite material negative pole, can
With the positive pole of deintercalation sodium ion and the electrolyte between the negative pole and positive pole.
Bicarbonate nickel, which accounts for composite mass percent, in bicarbonate nickel/graphene composite material of the present invention can pass through control
The quality mol ratio of graphene oxide and divalent nickel salt is regulated and controled.
The present invention also provides a kind of preparation method of bicarbonate nickel, including step is as follows：
Divalent nickel salt, reducing agent and water soluble carbonate or urea are dissolved in deionized water, is well mixed, must react
Liquid；Hydro-thermal reaction 1~48 hour at a temperature of 70~200 DEG C, scrubbed, dry bicarbonate nickel；
Divalent nickel salt molar concentration described in reaction solution is 0.01-0.25mol/L；Preferably, the divalent nickel salt mole
Concentration is 0.025-0.125mol/L.
The amount ratio of the material of the reducing agent, water soluble carbonate or urea and divalent nickel salt is 0.5-1.5：5-25：1-
5；Preferably, the ratio of the amount of the material of the reducing agent, water soluble carbonate or urea and divalent nickel salt is 0.5-1.5：5-10：
1-3。
The divalent nickel salt is one kind in nickel nitrate, nickel chloride, nickel sulfate or nickel acetate；
The water soluble carbonate is ammonium carbonate or sodium carbonate；Preferably, the water soluble carbonate is ammonium carbonate；
It using molar concentration is 0.05-1.25molL that the water soluble carbonate, which is,-1Water soluble carbonate the aqueous solution.
Preferably, it is as follows to include step for the preparation method of the reaction solution：By divalent nickel salt, reducing agent, deionization is dissolved in
In water, carbonate aqueous solution is rapidly joined, is well mixed, obtains reaction solution.
The application of above-mentioned bicarbonate nickel, it is applied to sodium-ion battery as anode material of lithium-ion battery.
The present invention technical characterstic and have the beneficial effect that：
(1) reducing agent is added in preparation process of the present invention, is graphene for redox graphene in course of reaction, together
When suppress nickelous oxidation.Carbonate aqueous solution is the method being quickly poured into used in preparation method of the present invention, mainly
Because carbonate and metal ion can quickly form carbonate precursor, the particle chi that can reduce presoma is quickly poured into
It is very little, while obtain the composite of uniform carbonate precursor and graphene oxide, the carbon obtained finally by hydro-thermal reaction
Sour hydrogen nickel/graphene composite material has the characteristics of component is uniformly distributed.The microscopic appearance of composite prepared by the present invention is
Particle diameter is 50-150nm bicarbonate nano nickel particles uniform load on graphene film.
(2) with sodium ion reversible electrochemical conversion reaction can occur for bicarbonate nickel of the invention Theoretical capacity~300mAh g-1), turn into height ratio capacity and high security sodium electricity negative pole material
Material, bicarbonate nickel is modified by graphene to suppress its bulk effect and improve conductance, so as to further improve the ratio of material
Capacity, multiplying power and cycle performance.
(3) present invention uses hydrothermal method one-step synthesis bicarbonate nickel/graphene composite material, and preparation method is simple,
Cost is cheap, and method is workable, favorable reproducibility, and products obtained therefrom steady quality.
(4) bicarbonate nickel/graphene composite material prepared by the present invention is applied to anode material of lithium-ion battery, it is pleasantly surprised
Ground finds that bicarbonate nickel/graphene composite material shows excellent specific capacity, cycle performance and high rate performance, while in big electricity
Good multiplying power and cycle performance are shown under the conditions of stream discharge and recharge, under 2A/g current densities, bicarbonate nickel/graphene is compound
Material specific capacity reaches 107mAh/g；266mAh/g specific capacity can also be kept after the circle of circulation 50 under 100mA/g；This is sodium
The application of ion battery cathode material provides a kind of new selection, while is established for its possible high current charge-discharge application
Basis, further it can provide application product by the high current charge-discharge on electric automobile.
Brief description of the drawings
Fig. 1 is the XRD spectra of bicarbonate nickel/graphene composite material prepared by the embodiment of the present invention 1.
Fig. 2 is the stereoscan photograph of bicarbonate nickel/graphene composite material prepared by the embodiment of the present invention 1.
Fig. 3 is bicarbonate nickel in application examples 1 of the present invention, the chemical property multiplying power of bicarbonate nickel/graphene composite material
Performance comparison figure.
Fig. 4 is bicarbonate nickel in application examples 1 of the present invention, the electrochemistry cycle performance of bicarbonate nickel/graphene composite material
Comparison diagram.
Embodiment
With reference to specific embodiment, the present invention is described further, but not limited to this.
Experimental method described in following embodiments simultaneously, is conventional method unless otherwise specified；The reagent and material
Material, unless otherwise specified, is commercially obtained.
Graphene oxide Shandong sea section Chemical Group is on sale in embodiment.
Embodiment 1
A kind of sodium-ion battery negative pole bicarbonate nickel/graphene composite material, the composite be bicarbonate nickel and
The composite powder material of graphene, the mass content of bicarbonate nickel is 92% in the composite powder material.
The preparation method of above-mentioned sodium-ion battery negative pole bicarbonate nickel/graphene composite material, including step are as follows：
Graphene oxide 6mg ultrasonic disperses are taken in 35mL deionized waters, then 1mmol nickel chlorides is added and 0.2g is anti-bad
Hematic acid, stir 15 minutes at room temperature, finally rapidly join 5mL ammonium carbonate solutions (1molL-1), it is well mixed, is transferred to 50mL and gathers
Tetrafluoroethene reactor, react 5 hours at a temperature of 160 DEG C.Products therefrom is scrubbed, 80 DEG C of dryings produce for 6 hours in atmosphere
Bicarbonate nickel/graphene composite material.
The XRD spectra of bicarbonate nickel/graphene composite material manufactured in the present embodiment is as shown in figure 1, as shown in Figure 1, institute
The composite of preparation is the compound of bicarbonate nickel and graphene.
The stereoscan photograph of bicarbonate nickel/graphene composite material manufactured in the present embodiment is as shown in Fig. 2 can by Fig. 2
Know, the microscopic appearance of prepared composite is supported on graphene film for 60nm or so bicarbonate nano nickel particles.
Embodiment 2
A kind of preparation method of sodium-ion battery negative pole bicarbonate nickel/graphene composite material, including step are as follows：
Graphene oxide 6mg ultrasonic disperses are taken in 35mL deionized waters, then 2mmol nickel chlorides is added and 0.2g is anti-bad
Hematic acid, stir 15 minutes at room temperature, finally rapidly join 5mL ammonium carbonate solutions (1molL-1), it is well mixed, is transferred to 50mL and gathers
Tetrafluoroethene reactor, react 3 hours at a temperature of 180 DEG C.Products therefrom is scrubbed, 80 DEG C of dryings produce for 6 hours in atmosphere
Bicarbonate nickel/graphene composite material.
Embodiment 3
A kind of preparation method of sodium-ion battery negative pole bicarbonate nickel/graphene composite material, including step are as follows：
Graphene oxide 6mg ultrasonic disperses are taken in 35mL deionized waters, then add 3mmol nickel acetates and 0.2g grapes
Sugar, stir 15 minutes at room temperature, finally rapidly join 5mL ammonium carbonate solutions (1molL-1), it is well mixed, is transferred to 50mL poly- four
PVF reactor, react 5 hours at a temperature of 160 DEG C.Products therefrom is scrubbed, 80 DEG C of dryings produce carbon in 6 hours in atmosphere
Sour hydrogen nickel/graphene composite material.
Embodiment 4
A kind of preparation method of bicarbonate nickel, including step are as follows：
1mmol nickel chlorides and 0.2g ascorbic acid are added in 35mL deionized waters, rapidly join 5mL ammonium carbonate solutions
(1molL-1), stir 15 minutes at room temperature, be then transferred to 50mL ptfe autoclaves, reacted 5 hours at a temperature of 160 DEG C.
Products therefrom is scrubbed, 80 DEG C of dryings produce bicarbonate nickel material in 6 hours in atmosphere.
Application examples 1
It is applied to anode material of lithium-ion battery using material prepared by embodiment 1 and embodiment 4 as active material, surveys
Try its chemical property.Electrode preparation method is as follows：By conductive agent：Binding agent：Active material (make by embodiment 1 and embodiment 5
Standby material) with 10：10：80 ratio is prepared by mixing into slurry (conductive agent uses acetylene black, and binding agent uses CMC), control
Certain is in uniform thickness coated in copper foil current collector.The electrode slice of suitable size is cut, 80 DEG C are dried 12 hours in vacuum,
Button cell is formed in glove box, sodium piece is to electrode, 1mol/L NaClO4- EC/DMC (volume ratios 1:1) it is electrolyte,
Barrier film is glass fiber filter paper, composition button cell (CR2032).Battery operation interval is 0.01V-3.0V.
Fig. 3 be embodiment 4 prepare bicarbonate nickel, embodiment 1 prepare bicarbonate nickel/graphene composite material multiplying power
Performance map, from the figure 3, it may be seen that under 2A/g current densities, bicarbonate nickel/graphene composite material specific capacity reaches 107mAh/g,
The specific capacity of bicarbonate nickel is 64mAh/g, compares single bicarbonate nickel and is greatly improved, thus the introducing of graphene is greatly
Improve the specific capacity and high rate performance of bicarbonate nickel material.
Fig. 4 is that bicarbonate nickel, bicarbonate nickel/graphene composite material of the preparation of embodiment 1 prepared by embodiment 4 exists
Cycle performance comparison diagram under 100mA/g, bicarbonate nickel/graphene composite material can also keep 266mAh/g's after being enclosed 50
Specific capacity, bicarbonate nickel can keep 147mAh/g specific capacity, and bicarbonate nickel/graphene composite material shows relatively single carbon
The electrochemical stability that sour hydrogen nickel material is remarkably reinforced.The most capacity of the present invention is realized in discharge voltage 1.0V or so
's.
Claims (10)
1. a kind of sodium-ion battery negative pole bicarbonate nickel/graphene composite material, the composite is bicarbonate nickel and stone
The composite powder material of black alkene, the mass content of bicarbonate nickel is 60~95% in the composite powder material；
Preferably, the mass content of bicarbonate nickel is 80~95% in the composite powder material.
2. sodium-ion battery negative pole according to claim 1 bicarbonate nickel/graphene composite material, it is characterised in that
The microscopic appearance of the bicarbonate nickel/graphene composite material is：Bicarbonate nano nickel particles uniform load is on graphene film；
The particle diameter of the bicarbonate nano nickel particles is 10nm~5 μm；Preferably, the particle diameter of the bicarbonate nano nickel particles be 10~
500nm。
3. the preparation of sodium-ion battery negative pole bicarbonate nickel/graphene composite material as described in claim any one of 1-2
Method, including step are as follows：
Graphene oxide is scattered in deionized water, adds divalent nickel salt, reducing agent and water soluble carbonate or urea, mixing
Uniformly, reaction solution is obtained；Hydro-thermal reaction 1~48 hour at a temperature of 70~200 DEG C, scrubbed, dry bicarbonate nickel/graphene
Composite.
4. the sodium-ion battery negative pole according to claim 3 preparation method of bicarbonate nickel/graphene composite material, its
It is characterised by, the ratio of the amount of the quality of graphene oxide described in reaction solution and the material of divalent nickel salt is 1：0.01-0.5g/
mol；Preferably, the ratio of the amount of the material of the quality of the graphene oxide and divalent nickel salt is 1：0.02-0.2g/mol；
Preferably, divalent nickel salt molar concentration described in reaction solution is 0.01-0.25mol/L；It is further preferred that the divalence
Nickel salt molar concentration is 0.025-0.125mol/L.
5. the sodium-ion battery negative pole according to claim 3 preparation method of bicarbonate nickel/graphene composite material, its
It is characterised by, the amount ratio of the material of reducing agent described in reaction solution, water soluble carbonate or urea and divalent nickel salt is 0.5-
1.5：5-25：1-5；Preferably, the ratio of the amount of the material of the reducing agent, water soluble carbonate or urea and divalent nickel salt is
0.5-1.5：5-10：1-3.
6. the sodium-ion battery negative pole according to claim 3 preparation method of bicarbonate nickel/graphene composite material, its
It is characterised by, the divalent nickel salt is one kind in nickel nitrate, nickel chloride, nickel sulfate or nickel acetate；
The reducing agent is one kind in citric acid, glucose or ascorbic acid.
7. the sodium-ion battery negative pole according to claim 3 preparation method of bicarbonate nickel/graphene composite material, its
It is characterised by, the water soluble carbonate is ammonium carbonate or sodium carbonate；It is further preferred that the water soluble carbonate is carbonic acid
Ammonium；
Preferably, it using molar concentration is 0.05-1.25molL that the water soluble carbonate, which is,-1Water soluble carbonate it is water-soluble
Liquid；
Preferably, it is as follows to include step for the preparation method of the reaction solution：Graphene oxide is scattered in deionized water, added
Divalent nickel salt, reducing agent, after dissolving is well mixed, carbonate aqueous solution is rapidly joined, be well mixed, obtain reaction solution.
8. the sodium-ion battery negative pole according to claim 3 preparation method of bicarbonate nickel/graphene composite material, its
It is characterised by, the hydrothermal temperature is 160~180 DEG C, and the reaction time is 2~6 hours.
9. the application of sodium-ion battery negative pole bicarbonate nickel/graphene composite material as described in claim any one of 1-2,
It is applied to sodium-ion battery as anode material of lithium-ion battery；The sodium-ion battery, including using bicarbonate nickel/graphene
The negative pole of composite, can be with the positive pole of deintercalation sodium ion and the electrolyte between the negative pole and positive pole.
10. a kind of application of bicarbonate nickel, it is applied to sodium-ion battery as anode material of lithium-ion battery.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108054021A (en) * | 2017-12-07 | 2018-05-18 | 南阳理工学院 | Bicarbonate nickel-poly-dopamine-graphene composite material and preparation method and application |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054021A (en) * | 2017-12-07 | 2018-05-18 | 南阳理工学院 | Bicarbonate nickel-poly-dopamine-graphene composite material and preparation method and application |
| CN108054021B (en) * | 2017-12-07 | 2019-08-23 | 南阳理工学院 | Bicarbonate nickel-poly-dopamine-graphene composite material and preparation method and application |
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