CN109256529A - High reversible SnO2The preparation method of quantum dot and graphene composite material - Google Patents
High reversible SnO2The preparation method of quantum dot and graphene composite material Download PDFInfo
- Publication number
- CN109256529A CN109256529A CN201710574011.4A CN201710574011A CN109256529A CN 109256529 A CN109256529 A CN 109256529A CN 201710574011 A CN201710574011 A CN 201710574011A CN 109256529 A CN109256529 A CN 109256529A
- Authority
- CN
- China
- Prior art keywords
- sno
- composite material
- quantum dot
- graphene
- preparation
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 42
- 239000002131 composite material Substances 0.000 title claims abstract description 27
- 239000002096 quantum dot Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 230000002441 reversible effect Effects 0.000 title claims abstract description 20
- XOLBLPGZBRYERU-UHFFFAOYSA-N SnO2 Inorganic materials O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000006185 dispersion Substances 0.000 claims abstract description 23
- 239000000243 solution Substances 0.000 claims abstract description 19
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 150000003839 salts Chemical class 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims abstract description 7
- 229930006000 Sucrose Natural products 0.000 claims abstract description 7
- 239000005720 sucrose Substances 0.000 claims abstract description 7
- 239000011259 mixed solution Substances 0.000 claims abstract description 6
- 239000000047 product Substances 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 6
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims abstract description 5
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 claims abstract description 5
- 239000008103 glucose Substances 0.000 claims abstract description 5
- 230000035484 reaction time Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 239000002270 dispersing agent Substances 0.000 claims abstract description 3
- 239000012265 solid product Substances 0.000 claims abstract description 3
- 239000002904 solvent Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 238000002604 ultrasonography Methods 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 claims description 2
- 238000005054 agglomeration Methods 0.000 claims description 2
- 230000002776 aggregation Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 2
- 239000002344 surface layer Substances 0.000 claims description 2
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims description 2
- YJGJRYWNNHUESM-UHFFFAOYSA-J triacetyloxystannyl acetate Chemical compound [Sn+4].CC([O-])=O.CC([O-])=O.CC([O-])=O.CC([O-])=O YJGJRYWNNHUESM-UHFFFAOYSA-J 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 4
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 4
- 239000011247 coating layer Substances 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000002484 cyclic voltammetry Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- -1 deionized water Alkene Chemical class 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous cells
-
- 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
-
- 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
- H01M4/628—Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
-
- 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 present invention relates to technical field of lithium ion, specifically high reversible SnO2The preparation method of quantum dot and graphene composite material, which is characterized in that including following preparation step: it chooses the dispersion solution that concentration is 1-5g/L and tinbase metal salt is added, obtain mixed solution；It will be put into again as carbon coating/dispersing agent sucrose or glucose and obtain mixed liquor in above-mentioned mixed solution；Above-mentioned finely dispersed mixed liquor sealing is entered into pyroreaction kettle, heat temperature raising carries out solvent thermal reaction, and reaction temperature is 100-300 DEG C, reaction time 30-200min, and then cooling to carry out separating, washing, the solid product obtained after dry is final products.Compared with prior art, the present invention preparation method is mild, efficient, high capacity, macrocyclic composite material are obtained；In SnO2The ultra-thin carbon coating layer of coated with uniform, the volume expansion bring structure that material can be effectively relieved are destroyed, and the materials'use service life is increased.
Description
Technical field
The present invention relates to technical field of lithium ion, specifically high reversible SnO2Quantum dot is compound with graphene
The preparation method of material.
Background technique
SnO2, relatively with conventional graphite class negative electrode material, there is significant energy density advantage, completely reversibility state is
1494mAh/g.But traditional research and application are found, SnO2Material is difficult to realize completely reversibility, and capacity has always been considered as
783mAh/g。
Summary of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, using one step hydro thermal method, synthesize on the surface of graphene
SnO2Quantum dot, and realize the coated modified carbon in situ of particle surface, realize SnO2Quantum dot has the electrochemistry of high reversible
Can, close to reversible capacity 1494mAh/g, there is significant energy density advantage, for the lithium ion of next-generation high-energy density
The exploitation of battery is of great significance.
To achieve the above object, a kind of high reversible SnO is designed2The preparation method of quantum dot and graphene composite material,
It is characterised in that it includes following preparation step:
(1), the dispersion solution that concentration is 1-5g/L is chosen, realizes that mean value is dispersed using stirring/ultrasound；The dispersion is molten
Liquid is graphene dispersion solution or graphene oxide；
(2), tinbase metal salt is added, is dissolved by stirring/ultrasonic disperse, obtains mixed solution, the tinbase metal
The additional amount of salt is that 10-50g/L is added in every liter of dispersion solution；
(3), will be put into above-mentioned mixed solution as carbon coating/dispersing agent sucrose or glucose again, by stirring/
Ultrasonic disperse dissolves to obtain mixed liquor, and the additional amount of the sucrose or glucose is that 0-50g is added in every liter of dispersion solution；
(4), above-mentioned finely dispersed mixed liquor sealing is entered into pyroreaction kettle, it is anti-that heat temperature raising carries out solvent heat
It answers, reaction temperature is 100-300 DEG C, then reaction time 30-200min is cooled down；
(5), mixed liquor after cooling carries out separating, washing, and the solid product obtained after dry is final products ---
Carbon-coated SnO in situ2The composite material of quantum dot and graphene.
The additional amount of the graphene dispersion solution or graphene oxide dispersion solution is every liter of dispersion solution
Middle addition 1.5-2.5g/L, the dispersion and load capacity for being conducive to graphene control.
The tinbase metal salt is pink salt soluble easily in water.
The pink salt soluble easily in water includes stannic chloride, tin acetate or STANNOUS SULPHATE CRYSTALLINE.
The additional amount of the tinbase metal salt is that 15-30g/L is added in every liter of dispersion solution, and it is negative to be conducive to control
Carrying capacity reduces particle agglomeration.
The reaction temperature of the step (4) is 200 DEG C.
The reaction time of the step (4) is 120min.
The carbon-coated SnO in the original position2The material with carbon-coated surface layer of the composite material of quantum dot and graphene is with a thickness of 1-
3nm, SnO2Quantum dot size is 3-5nm.
Separating, washing described in step (5) is to be centrifuged using centrifuge, then to the solid formation isolated
Matter is washed with deionized 2-3 times.
Compared with prior art, the present invention the preparation method used is mild, efficient, it can be uniformly quick on the surface of graphene
Deposit SnO2Quantum dot obtains high capacity, macrocyclic SnO2With graphene composite material；In SnO2Coated with uniform surpasses
Thin carbon coating layer, the volume expansion bring structure that material can be effectively relieved are destroyed, and the materials'use service life is increased；The material of preparation
The advantages of application test of the material in lithium ion battery, shows ultra-high capacity, long circulation life；Meanwhile SnO2It is testing
Show the electrochemical reaction reversible nature of height in the process, it was demonstrated that SnO2Reversible lithium storage mechanism, have huge storage
It can potentiality.
Detailed description of the invention
Fig. 1 is the TEM figure of graphene raw material.
Fig. 2 is the SnO prepared in the present invention2A kind of TEM of amplification factor of@C/graphene composite material schemes.
Fig. 3 is the SnO prepared in the present invention2The TEM of another amplification factor of@C/graphene composite material schemes.
Fig. 4 is the SnO prepared in the present invention2@C/graphene composite material cycle performance figure.
The SnO prepared in Fig. 5 present invention2@C/graphene composite material cyclic voltammetry curve.
The SnO of comparative example preparation in Fig. 6 present invention2The TEM of@C composite schemes.
Specific embodiment
The present invention is further described through below with reference to embodiment.
Embodiment 1
Taking concentration is the graphene oxide solution 40ml of 1g/L, and the SnCl of 0.8g is added4 5H2The sucrose of O, 0.75g.
Above-mentioned material is placed in 50ml ptfe autoclave, stirs 30min, after ultrasonic 30min dispersion, sealing is put into
It is reacted in ancient customs drying box, reaction condition are as follows: 200 DEG C, 120min.It is centrifuged after reaction, and in vacuum
It is dried in drying box, obtains finished product carbon-coated SnO in situ2The composite material of quantum dot and graphene, namely
SnO2@C/graphene powder sample, referring to fig. 2.The present invention graphene surface as shown in Figure 1 efficiently, uniform load
The SnO of 3-5nm2Quantum dot particle, and SnO2Quantum dot particle surface has observed ultra-thin carbon coating layer, referring to Fig. 3.
Resulting materials are according to active material: acetylene black: PVDF=8: 1: 1 weight ratio deploys slurry, is coated on copper foil
It is prepared into electrode, is assembled into button cell, carries out electrochemical property test after standing 10h, wherein lithium piece is used as to electrode, electricity
Solving formula of liquid is EC: EMC: DMC=1: 1: 1 ,+1.0%VC.The battery being completed is carried out using Land battery test system
Test, test voltage section 0.01-3.0V test electric current 200mA g-1.From test result as can be seen that referring to fig. 4, SnO2@
Capacity keeps 1080mAh/g after there is C/graphene good cycle performance, composite material to recycle 300 weeks, wherein SnO2's
It calculates capacity contribution and has reached 1400mAh/g, approached the capacity contribution value of its completely reversibility.Pass through cyclic voltammetry table
Sign, referring to Fig. 5, it can be seen that SnO2The electrochemical reversible property that height is shown in cyclic process, shows system of the present invention
Standby SnO2 quantum dot has reversible lithium storage ability.
Comparative example:
Take the SnCl of 0.8g4 5H2Above-mentioned material is placed in 50ml polytetrafluoroethyl-ne by the sucrose of O, 0.75g, 40ml deionized water
Alkene reaction kettle stirs 30min, and after ultrasonic 30min dispersion, sealing, which is put into ancient customs drying box, is reacted, reaction condition are as follows:
200 DEG C, 120min.It is centrifuged, and is dried in vacuum oven after reaction, obtain finished product
SnO2@C powder sample.From fig. 6, it can be seen that not adding the product SnO of graphite olefinic constituent2@C also has good ultra-thin carbon packet
Structure is covered, but due to lacking graphene-based bottom, particle is easy to reunite, and composite material conductive rate is low, therefore its chemical property
Play poor, circulating and reversible capacity only maintains 350-400mAh/g within 50 weeks.
Finally, it should be noted that these are only the preferred embodiment of the present invention, it is not intended to restrict the invention, although
Referring to embodiment, invention is explained in detail, for those skilled in the art, still can be to aforementioned
Scheme described in each embodiment is modified or equivalent replacement of some of the technical features, but all in the present invention
Spirit and principle within, any modification, equivalent replacement, improvement and so on all should be included in protection scope of the present invention it
It is interior.
Claims (9)
1. a kind of high reversible SnO2The preparation method of quantum dot and graphene composite material, which is characterized in that
Including following preparation step:
(1), the dispersion solution that concentration is 1-5g/L is chosen, realizes that mean value is dispersed using stirring/ultrasound；The dispersion solution is
Graphene dispersion solution or graphene oxide；
(2), tinbase metal salt is added, is dissolved by stirring/ultrasonic disperse, obtains mixed solution, the tinbase metal salt
Additional amount is that 10-50g/L is added in every liter of dispersion solution；
(3), it will be put into above-mentioned mixed solution as carbon coating/dispersing agent sucrose or glucose again, pass through stirring/ultrasound
Dispersing and dissolving obtains mixed liquor, and the additional amount of the sucrose or glucose is that 0-50g is added in every liter of dispersion solution；
(4), above-mentioned finely dispersed mixed liquor sealing is entered into pyroreaction kettle, heat temperature raising carries out solvent thermal reaction, instead
Answering temperature is 100-300 DEG C, then reaction time 30-200min is cooled down；
(5), mixed liquor after cooling carries out separating, washing, and the solid product obtained after dry is final products --- and it is in situ
Carbon-coated SnO2The composite material of quantum dot and graphene.
2. high reversible SnO as described in claim 12The preparation method of quantum dot and graphene composite material, feature exist
In the additional amount of the graphene dispersion solution or graphene oxide dispersion solution is to be added in every liter of dispersion solution
1.5-2.5g/L, the dispersion and load capacity for being conducive to graphene control.
3. high reversible SnO as described in claim 12The preparation method of quantum dot and graphene composite material, feature exist
In the tinbase metal salt is pink salt soluble easily in water.
4. high reversible SnO as claimed in claim 32The preparation method of quantum dot and graphene composite material, feature exist
In the pink salt soluble easily in water includes stannic chloride, tin acetate or STANNOUS SULPHATE CRYSTALLINE.
5. high reversible SnO as described in claim 12The preparation method of quantum dot and graphene composite material, feature exist
In, the additional amount of the tinbase metal salt is that 15-30g/L is added in every liter of dispersion solution, is conducive to control load capacity,
Reduce particle agglomeration.
6. high reversible SnO as described in claim 12The preparation method of quantum dot and graphene composite material, feature exist
In the reaction temperature of the step (4) is 200 DEG C.
7. high reversible SnO as described in claim 12The preparation method of quantum dot and graphene composite material, feature exist
In the reaction time of the step (4) is 120min.
8. high reversible SnO as described in claim 12The preparation method of quantum dot and graphene composite material, feature exist
In the carbon-coated SnO in the original position2The material with carbon-coated surface layer of the composite material of quantum dot and graphene with a thickness of 1-3nm,
SnO2Quantum dot size is 3-5nm.
9. high reversible SnO as described in claim 12The preparation method of quantum dot and graphene composite material, feature exist
In separating, washing described in step (5) is to be centrifuged using centrifuge, is then spent to the solid matter isolated
Ion water washing 2-3 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710574011.4A CN109256529A (en) | 2017-07-14 | 2017-07-14 | High reversible SnO2The preparation method of quantum dot and graphene composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710574011.4A CN109256529A (en) | 2017-07-14 | 2017-07-14 | High reversible SnO2The preparation method of quantum dot and graphene composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109256529A true CN109256529A (en) | 2019-01-22 |
Family
ID=65050692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710574011.4A Pending CN109256529A (en) | 2017-07-14 | 2017-07-14 | High reversible SnO2The preparation method of quantum dot and graphene composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109256529A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112582595A (en) * | 2020-12-15 | 2021-03-30 | 南京国轩电池有限公司 | C/SnO of lithium ion battery2Preparation method and application of/rGO composite anode material |
| CN114122362A (en) * | 2021-11-25 | 2022-03-01 | 皖西学院 | Lithium @ carbon-coated graphene/SnO2Composite material and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881898A (en) * | 2012-09-17 | 2013-01-16 | 上海交通大学 | Preparation method and application of carbon-coated grapheme-based metal oxide composite |
| CN104269535A (en) * | 2014-09-15 | 2015-01-07 | 南京工业大学 | Preparation method of carbon-coated metal oxide-graphene composite electrode material |
| CN104659367A (en) * | 2015-03-17 | 2015-05-27 | 东莞市迈科科技有限公司 | Preparation method of lithium ion battery cathode material |
-
2017
- 2017-07-14 CN CN201710574011.4A patent/CN109256529A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881898A (en) * | 2012-09-17 | 2013-01-16 | 上海交通大学 | Preparation method and application of carbon-coated grapheme-based metal oxide composite |
| CN104269535A (en) * | 2014-09-15 | 2015-01-07 | 南京工业大学 | Preparation method of carbon-coated metal oxide-graphene composite electrode material |
| CN104659367A (en) * | 2015-03-17 | 2015-05-27 | 东莞市迈科科技有限公司 | Preparation method of lithium ion battery cathode material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112582595A (en) * | 2020-12-15 | 2021-03-30 | 南京国轩电池有限公司 | C/SnO of lithium ion battery2Preparation method and application of/rGO composite anode material |
| CN114122362A (en) * | 2021-11-25 | 2022-03-01 | 皖西学院 | Lithium @ carbon-coated graphene/SnO2Composite material and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107611409B (en) | Preparation method of flaky nano FeS2/C negative electrode material | |
| CN106450195B (en) | A kind of positive material for lithium-sulfur battery and preparation method thereof and the lithium-sulfur cell containing the positive electrode | |
| CN107275606B (en) | Carbon-coated spinel lithium manganate nanocomposite and preparation method and application thereof | |
| WO2019091067A1 (en) | Nitrogen-sulfur co-doped carbon coated tin/molybdenum disulfide composite material for lithium ion battery and preparation method therefor | |
| CN106532014A (en) | Method for preparing composite material that stannic oxide nano-particles attach to graphene oxide | |
| CN110311092B (en) | SnO (stannic oxide)2carbon/V2O5Application of/graphene composite nano material as battery negative electrode material | |
| CN104617271A (en) | Stannic selenide/graphene oxide negative pole composite material for sodium ion battery and preparation method thereof | |
| CN105355877A (en) | Graphene-metal oxide composite negative electrode material and preparation method therefor | |
| CN106960954A (en) | A kind of preparation method and application of Prussian blue/graphene/sulphur composite | |
| CN107579219A (en) | For graphene/zinc oxide negative material of secondary zinc base battery and its preparation | |
| CN109319757B (en) | Method for preparing hollow open onion carbon lithium ion battery cathode material | |
| CN105742597B (en) | A kind of preparation method of lithium ion battery negative material | |
| CN106058182B (en) | A kind of preparation method of the good lithium titanate/polyaniline composite material of high rate performance | |
| CN108963211A (en) | A kind of titanium carbide load stannous sulfide composite negative pole material | |
| CN107516740A (en) | A kind of carbon ink, graphene powder combined conductive agent and preparation method thereof, application | |
| CN109473643B (en) | CoSe2Preparation method and application of graphene composite material | |
| CN112421015A (en) | Preparation method of graphene quantum dot coated ternary cathode material | |
| CN105449177A (en) | Porous cubic ZnSO3@graphene negative electrode material used for sodium ion battery and preparation method for porous cubic ZnSO3@graphene negative electrode material | |
| WO2022032747A1 (en) | Method for preparing sulfur-doped rese2/mxene composite material | |
| CN106058184A (en) | Method for preparing tin dioxide/porous carbon sphere composite material | |
| CN113629249A (en) | Preparation method of MXene-based supported platinum catalyst applied to lithium-sulfur battery anode | |
| CN108163832B (en) | Preparation method and application of asphalt-based carbon nanosheet | |
| CN110838583A (en) | Carbon nanotube/M-phase vanadium dioxide composite structure, preparation method thereof and application thereof in water-based zinc ion battery | |
| Ma et al. | A strategy associated with conductive binder and 3D current collector for aqueous zinc-ion batteries with high mass loading | |
| CN114314673B (en) | Preparation method of flaky FeOCl 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190122 |
|
| RJ01 | Rejection of invention patent application after publication |