CN115196674A - Battery electrode composite material and preparation method and application thereof - Google Patents
Battery electrode composite material and preparation method and application thereof Download PDFInfo
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- CN115196674A CN115196674A CN202210788407.XA CN202210788407A CN115196674A CN 115196674 A CN115196674 A CN 115196674A CN 202210788407 A CN202210788407 A CN 202210788407A CN 115196674 A CN115196674 A CN 115196674A
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- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- BWOROQSFKKODDR-UHFFFAOYSA-N oxobismuth;hydrochloride Chemical compound Cl.[Bi]=O BWOROQSFKKODDR-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 18
- 229940073609 bismuth oxychloride Drugs 0.000 claims abstract description 16
- -1 transition metal oxychloride Chemical class 0.000 claims abstract description 16
- 239000003960 organic solvent Substances 0.000 claims abstract description 13
- QMKYBPDZANOJGF-UHFFFAOYSA-N benzene-1,3,5-tricarboxylic acid Chemical compound OC(=O)C1=CC(C(O)=O)=CC(C(O)=O)=C1 QMKYBPDZANOJGF-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002243 precursor Substances 0.000 claims abstract description 12
- 229910001415 sodium ion Inorganic materials 0.000 claims abstract description 9
- 238000000137 annealing Methods 0.000 claims abstract description 8
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 6
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000012298 atmosphere Substances 0.000 claims abstract description 5
- 229910021381 transition metal chloride Inorganic materials 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 239000011259 mixed solution Substances 0.000 claims abstract description 3
- 150000001879 copper Chemical class 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 17
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 11
- JHXKRIRFYBPWGE-UHFFFAOYSA-K bismuth chloride Chemical compound Cl[Bi](Cl)Cl JHXKRIRFYBPWGE-UHFFFAOYSA-K 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 4
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 239000006230 acetylene black Substances 0.000 claims description 3
- 150000003841 chloride salts Chemical class 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 229960003280 cupric chloride Drugs 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 239000000243 solution Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- 239000007772 electrode material Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000001351 cycling effect Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000003624 transition metals Chemical class 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000006258 conductive agent Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 229910001431 copper ion Inorganic materials 0.000 description 2
- RCJVRSBWZCNNQT-UHFFFAOYSA-N dichloridooxygen Chemical compound ClOCl RCJVRSBWZCNNQT-UHFFFAOYSA-N 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052976 metal sulfide Inorganic materials 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 239000013110 organic ligand Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000009210 therapy by ultrasound Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910001451 bismuth ion Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000012621 metal-organic framework Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002135 nanosheet Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000006276 transfer reaction Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G29/00—Compounds of bismuth
-
- 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
- H01M4/58—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
-
- 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
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to the technical field of composite materials, and discloses a battery electrode composite material, a preparation method and application thereof, wherein the preparation method comprises the following steps: ultrasonically dissolving a divalent copper salt in an organic solvent, adding a mixed solution of trimesic acid ultrasonically dissolved in the organic solvent, standing, adding the organic solvent, centrifuging, and drying to obtain CuBTC; s2: annealing CuBTC in an inert atmosphere to obtain a Cu @ C precursor; s3: dissolving a Cu @ C precursor and transition metal chloride in an organic solvent, stirring, carrying out hydrothermal reaction, and centrifuging to obtain the flaky bismuth oxychloride. According to the battery electrode composite material and the preparation method thereof provided by the invention, the flaky bismuth oxychloride has the advantages of larger surface area, larger capacity and high sodium ion mobility, and meanwhile, the stability of the battery is improved through the synergistic effect of the flaky bismuth oxychloride and the transition metal oxychloride.
Description
Technical Field
The invention belongs to the technical field of composite materials, and particularly relates to a battery electrode composite material as well as a preparation method and application thereof.
Background
The current battery cathode material has low capacity and cannot meet the requirements of the current battery, wherein the capacity of the metal sulfide material is reduced due to volume expansion and shuttle effect in the charging and discharging processes, and the cycling stability is poor. The transition metal oxychloride combines transition metal and chlorine element, so that the capacity is higher, and the controllable preparation of the shape can effectively inhibit the volume expansion of the material in the charging and discharging process, relieve the shuttle effect to a certain extent and obtain better cycle stability.
Transition metal sulfide can provide high capacity due to electron transfer reaction in the charging and discharging processes, but metal sodium has poor stability and rate capability due to side reaction with electrolyte, so that an inefficient sodium storage process is caused, and the application of the transition metal sulfide in a sodium ion battery is limited.
Disclosure of Invention
The invention provides a battery electrode composite material, a preparation method and application thereof, and aims to solve the technical problems of shuttle effect, poor circulation stability, poor multiplying power performance and the like existing in the prior art of metal sulfide materials and transition metal sulfides as electrode materials.
The invention provides the following technical scheme:
a preparation method of a battery electrode composite material comprises the following steps:
s1: preparation of CuBTC: ultrasonically dissolving a cupric salt in an organic solvent, adding a mixed solution of trimesic acid ultrasonically dissolved in the organic solvent, standing, adding the organic solvent, centrifuging, and drying to obtain the CuBTC;
s2: preparation of Cu @ C precursor: annealing the CuBTC under inert atmosphere to obtain the Cu @ C precursor;
s3: preparation of the flaky transition metal oxychloride: dissolving the Cu @ C precursor and transition metal chloride salt in an organic solvent, stirring, carrying out hydrothermal reaction, and centrifuging to obtain the flaky transition metal oxychloride.
Preferably, the cupric salt in step S1 is one of cupric nitrate and cupric chloride;
preferably, the mass ratio of the copper nitrate to the trimesic acid in the step S1 is 1-3:1;
preferably, step S1 requires standing for 2-6 hours to prepare the CuBTC;
preferably, the organic solvent in step S1 is at least one of methanol and ethylene glycol;
preferably, the temperature rise rate of the CuBTC annealing in the step S2 is 2-5 ℃/min, and the annealing temperature is 500-700 ℃;
preferably, the inert atmosphere in step S2 is one of a nitrogen atmosphere, an argon atmosphere, and a helium atmosphere;
preferably, the transition metal chloride salt in step S3 is trivalent bismuth chloride;
preferably, the flaky transition metal oxychloride in the step S3 is flaky bismuth oxychloride;
preferably, the mass ratio of the Cu @ C precursor to the trivalent bismuth chloride in the step S3 is 1:3-5;
preferably, the reaction temperature of the hydrothermal reaction in the step S3 is 100-150 ℃, and the reaction time is 18-24h.
A battery electrode composite material prepared by the preparation method.
Preferably, the battery electrode composite material is the transition metal oxychloride prepared by the preparation method.
More preferably, the battery electrode composite is flake bismuth oxychloride.
The battery electrode composite material prepared by the method is applied to the field of sodium-ion battery materials.
Preferably, the battery electrode composite material is sheet bismuth oxychloride;
more preferably, the flaky bismuth oxychloride, the acetylene black (conductive agent) and the polyvinylidene fluoride (binder) are uniformly mixed according to a mass ratio of 7.
Compared with the prior art, the battery electrode composite material, the preparation method and the application thereof provided by the invention have the following advantages and beneficial effects:
1) Copper ions and organic ligands are introduced to effectively guide and construct a metal organic framework, and the organic ligands are removed through high-temperature calcination subsequently to form a carbon-coated copper simple substance precursor. The hydrothermal reaction causes the exchange between the metal copper and bismuth ions, and the bismuth trichloride grows flaky bismuth oxychloride in situ by taking the metal copper as a site;
2) The flaky bismuth oxychloride as an electrode material has larger surface area, simultaneously exposes more active sites, and can allow more sodium ions to be de-intercalated in the charge and discharge process, thereby obtaining larger capacity;
3) By enlarging the contact area between the electrode material and the electrolyte, a rapid diffusion path between ion layers is constructed, and the mobility of sodium ions is improved;
4) The synergistic effect of the transition metal oxychloride contributes to the stability of the battery.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
FIG. 1 is a schematic view of a BiOCl preparation process according to an embodiment of the present invention;
FIG. 2 is a scanning electron microscope image of BiOCl according to an embodiment of the present invention;
FIG. 3 is an XRD pattern of BiOCl according to one embodiment of the present invention;
FIG. 4 shows a BiOC according to an embodiment of the present inventionMultiplying power cycle plot of l (Cu @ C: biCl) 3 The mass ratio is 1: 4) (ii) a
FIG. 5 is a graph of the cycling performance of BiOCl at a current density of 1.0A/g in accordance with one embodiment of the present invention;
FIG. 6 is a graph showing the rate cycle of BiOCl according to an embodiment of the present invention (Cu @ C: biCl) 3 The mass ratio is 1: 3) (ii) a
FIG. 7 is a graph of the cycling performance of BiOCl at 1.0A/g current density according to one embodiment of the present invention (Cu @ C: biCl) 3 The mass ratio is 1: 3).
Detailed Description
For the purpose of more clearly illustrating the present invention and more clearly understanding the technical features, objects and advantages of the present invention, the technical solutions of the present invention will now be described in detail below, but the present invention should not be construed as being limited to the implementable scope of the present invention.
The starting materials, reagents or apparatuses used in the following examples are conventionally commercially available or can be obtained by conventionally known methods, unless otherwise specified.
The invention is further described with reference to the following figures and examples.
The first embodiment is as follows:
the preparation method of the battery electrode composite material provided by the invention is shown in figure 1, and specifically comprises the following steps:
s1: preparation of CuBTC
1.75g of copper nitrate (Cu (NO) 3 ) 2 ) Dissolving in 50mL of methanol solution, performing ultrasonic treatment for half an hour, dissolving 0.875g of trimesic acid (H3 BTC) in 50mL of methanol solution, performing ultrasonic treatment for half an hour, mixing the two solutions, standing for 2 hours, and performing centrifugal drying on methanol to obtain CuBTC;
s2: preparation of Cu @ C precursor
Annealing CuBTC at 600 ℃ in a nitrogen atmosphere, and raising the temperature at the rate of 5 min/DEG C to obtain Cu @ C;
s3: preparation of BiOCl
Dissolving Cu @ C: biCl3=1:4 in 100mL of glycol solution, stirring for 30min, transferring to a polytetrafluoroethylene hydrothermal kettle, heating at 120 ℃ for 18h, and centrifuging to obtain BiOCl.
As shown in fig. 2, as can be seen from the scanning electron microscope image of the prepared BiOCl, the prepared transition metal oxychloride BiOCl is of a nanosheet structure, as shown in fig. 3, the transition metal oxychloride BiOCl has successfully grown.
Example two:
an electrical property test experiment was performed on the BiOCl prepared in example one.
The method comprises the following steps of uniformly mixing BiOCl, acetylene black (conductive agent) and polyvinylidene fluoride (binder) according to a mass ratio of 7.
As shown in fig. 4 and 6, the discharge capacity was 280mAh/g at a current density of 0.1A/g and 150mAh/g at a current density of 5A/g); in FIG. 4, cu @C: biCl 3 The mass ratio is 1:4; in FIG. 6, cu @ C: biCl 3 The mass ratio is 1:3.
as shown in fig. 5 and 7, under the current density of 1A/g, the coulombic efficiency of the first turn is higher, the coulombic efficiency of the subsequent turn is basically maintained at about 100%, and the specific capacity of 150mAh/g is still maintained after 1000 turns of circulation, which indicates that the material structure is stable and the specific capacity of the material is higher. In FIG. 5, cu @ C: biCl 3 The mass ratio is 1:4; in FIG. 7, cu @ C: biCl 3 The mass ratio is 1:3.
according to the preparation method provided by the embodiment of the invention, the battery electrode composite material prepared by the method and the application of the battery electrode composite material in a battery, the flaky bismuth oxychloride has larger surface area, larger capacity and high sodium ion mobility, and the stability of the battery is improved through the synergistic effect of the flaky bismuth oxychloride and the transition metal oxychloride; has the following characteristics: 1) The flaky bismuth oxychloride as the electrode material has larger surface area, simultaneously exposes more active sites, and can allow more sodium ions to be de-intercalated in the charging and discharging processes, thereby obtaining larger capacity; 2) By enlarging the contact area between the electrode material and the electrolyte, a rapid diffusion path between ion layers is constructed, and the mobility of sodium ions is improved; 3) The synergistic effect of the transition metal oxychloride contributes to the stability of the battery.
Finally, it should be noted that, within the scope of the present invention, other components, ratios and preparation process parameters can be specifically selected to achieve the technical effects of the present invention, and therefore, they are not listed one by one. Meanwhile, the above embodiments are only intended to illustrate the technical solutions of the present invention, not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The preparation method of the battery electrode composite material is characterized by comprising the following steps of:
s1: preparing CuBTC: ultrasonically dissolving a divalent copper salt in an organic solvent, adding a mixed solution of trimesic acid ultrasonically dissolved in the organic solvent, standing, adding the organic solvent, centrifuging, and drying to obtain the CuBTC;
s2: preparing a Cu @ C precursor: annealing the CuBTC in an inert atmosphere to obtain the Cu @C precursor;
s3: preparing a flaky transition metal oxychloride: dissolving the Cu @ C precursor and transition metal chloride salt in an organic solvent, stirring, carrying out hydrothermal reaction, and centrifuging to obtain the flaky transition metal oxychloride.
2. The method for preparing a battery electrode composite material according to claim 1, wherein: the transition metal chloride is trivalent bismuth chloride, and the flaky transition metal oxychloride is flaky bismuth oxychloride.
3. The method for preparing a battery electrode composite material according to claim 2, wherein: the mass ratio of the Cu @ C precursor to the trivalent bismuth chloride is 1:3-5.
4. The method for preparing a battery electrode composite material according to claim 1, wherein: the reaction temperature of the hydrothermal reaction is 100-150 ℃, and the reaction time is 18-24h.
5. The method for preparing a battery electrode composite material according to claim 1, wherein: the cupric salt is one of cupric nitrate and cupric chloride, and the mass ratio of the cupric nitrate to the trimesic acid is 1-3:1.
6. The method for preparing the battery electrode composite material according to claim 5, wherein: standing for 2-6 hours to prepare the CuBTC.
7. The method for preparing a battery electrode composite material according to claim 1, wherein: the heating rate of the CuBTC annealing is 2-5 ℃/min, and the annealing temperature is 500-700 ℃.
8. A battery electrode composite made according to the method of any one of claims 1-7.
9. The battery electrode composite of claim 8, wherein: the battery electrode composite material is the flaky bismuth oxychloride, and the discharge capacity of the flaky bismuth oxychloride is 280mAh/g at the current density of 0.1A/g and 150mAh/g at the current density of 5A/g.
10. The application of the battery electrode composite material in the field of sodium-ion batteries according to claim 8, wherein the battery electrode composite material comprises: the battery electrode composite material is the flaky bismuth oxychloride, the acetylene black and the polyvinylidene fluoride are uniformly mixed according to the mass ratio of 7.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826085A (en) * | 2016-05-24 | 2016-08-03 | 湘潭大学 | Carbon/bismuth oxychloride super capacitor battery and preparation method thereof |
| CN108383160A (en) * | 2018-04-11 | 2018-08-10 | 湘潭大学 | A kind of preparation method and applications of metallic element doping BiOCl nanometer sheet materials |
| CN113839038A (en) * | 2021-08-12 | 2021-12-24 | 山东大学 | MOF-derived Bi @ C nano composite electrode material and preparation method thereof |
-
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- 2022-07-06 CN CN202210788407.XA patent/CN115196674B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826085A (en) * | 2016-05-24 | 2016-08-03 | 湘潭大学 | Carbon/bismuth oxychloride super capacitor battery and preparation method thereof |
| CN108383160A (en) * | 2018-04-11 | 2018-08-10 | 湘潭大学 | A kind of preparation method and applications of metallic element doping BiOCl nanometer sheet materials |
| CN113839038A (en) * | 2021-08-12 | 2021-12-24 | 山东大学 | MOF-derived Bi @ C nano composite electrode material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| R. RAMESHBABU等: ""Effective coupling of Cu (Ⅱ) with BiOCl nanosheets for high performance electrochemical supercapacitor and enhanced photocatalytic applications"", 《APPLIED SURFACE SCIENCE》, vol. 521, pages 1 - 12 * |
| 徐丽娜等: ""MOF 为前驱体制备Cu/C催化剂及催化性能研究"", 《哈尔滨师范大学自然科学学报》, vol. 37, no. 4, pages 47 - 55 * |
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