CN113401948A - Negative electrode Fe of lithium ion battery7S8/Fe2O3Composite material, preparation method and application - Google Patents
Negative electrode Fe of lithium ion battery7S8/Fe2O3Composite material, preparation method and application Download PDFInfo
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- C01G49/06—Ferric oxide (Fe2O3)
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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- 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
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/523—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron for non-aqueous cells
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- 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
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- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
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Abstract
The invention provides a lithium ion battery cathode Fe7S8/Fe2O3Dissolving ferric salt, urotropine and sublimed sulfur in water, stirring, carrying out hydrothermal reaction, washing, drying and calcining the obtained product to obtain Fe7S8/Fe2O3A composite material. Fe prepared herein2O3/Fe7S8The composite material is in a pine needle ball shape, provides a larger contact area for the electrolyte and the electrode, and promotes the electrolyte to be in a short timeCharge is taken in with Li+Fast transfer of (2); and the composite material forms a larger space gap, and the volume expansion of the material during lithium intercalation is relieved, so the electrochemical performance of the battery is effectively improved. Thereby Fe2O3/Fe7S8The composite electrode exhibits a high reversible capacity. The charge and discharge cycle is 200 times at 0.1C multiplying power, and the capacity is as high as 1000 mAh/g.
Description
Technical Field
The invention relates to the technical field of preparation of energy storage materials, in particular to Fe7S8/Fe2O3Composite material and its preparation method and application.
Background
At present, the commercial lithium ion battery cathode material is mainly graphite, the graphite has good cycling stability, but the specific capacity is lower (the theoretical specific capacity is only 372 mAh ∙ g)-1) And the requirements of people on the lithium ion battery with high power density and high energy density cannot be met. Therefore, it is necessary to develop a negative electrode material having a high specific capacity, high cycle stability and high rate performance to replace the existing graphite negative electrode.
Fe. O and S widely exist in the nature, are low in price and friendly to the environment, and iron oxides have the advantages of high energy density, safety, no toxicity, stable structure and low price, and are deeply concerned by researchers. Therefore, iron oxides are ideal negative electrode materials for lithium ion batteries. Wherein Fe2O3The theoretical capacity of the catalyst reaches 1008 mAh g-1However, the practical discharge capacity is very low, about 300 mAh g-1, and the cycling stability and rate performance can not meet the requirements, which are mainly limited by the volume change and the dynamics of the active material. To improve Fe2O3Is generally Fe2O3Nanocrystallization, or preparation of Fe2O3And C, the reversible capacity and the cycle life of the negative electrode material are improved to a certain extent.
Also, iron has poor sulfide stability, Fe7S8Theoretical capacity of 667 mAh g-1The actual discharge capacity is slightly higher than that of Fe3O4Actual discharge capacity of (c). However Fe7S8The material has the defects of low conductivity, volume expansion in the charge-discharge cycle process, active substance dissolution in electrolyte and the like, so that the cyclicity and the rate capability of the material are poor.
Disclosure of Invention
The invention provides Fe7S8/Fe2O3The composite material, the preparation method and the application thereof solve the problem of Fe2O3And Fe7S8Low actual discharge specific capacity and bad cycle capacity and cycle life.
The technical scheme for realizing the invention is as follows:
lithium ion battery cathode Fe7S8/Fe2O3A process for the preparation of a composite material from 0.6g Fe (NO)3)·9H2O, 1.19g of urotropin and 0.12g of sublimed sulfur are dissolved in 30mL of water, the mixture is continuously stirred for 20min, then the obtained solution is poured into an autoclave (50 mL), and the autoclave is placed in an oven for reaction at the temperature of 160 ℃ and 200 ℃ for 8-16 h. After cooling to room temperature, the obtained precipitate was washed with water and ethanol 2-3 times, respectively. Finally, Fe7S8/Fe2O3The powder was dried in a vacuum oven at 80 ℃ for 8 hours. Then transferred to a tube furnace in N2Annealing at 450-500 ℃ for 2-3h under the atmosphere, and the heating rate is 5 ℃ min-1。
Said Fe7S8/Fe2O3The composite material is in a pine needle ball shape, and the particle size is uniform.
The method takes ferric nitrate, urotropine and sublimed sulfur as raw materials, and prepares the composite lithium ion battery cathode material (Fe) by hydrothermal synthesis and high-temperature calcination2O3/Fe7S8）。Fe2O3/Fe7S8Mixing with Super P, PVDF and N-methyl pyrrolidone in proportion, coating on copper foil, and drying at 80 deg.C for 12 hr; then slicing and drying for 4 hours at 80 ℃ to obtain the lithium ion battery negative pole piece.
The invention has the beneficial effects that: fe prepared herein2O3/Fe7S8The composite material is in a pine needle ball shape, provides a large contact area for the electrolyte and the electrode, and promotes charge and Li+Fast transfer of (2); and it makes the composite material form larger space gap, and relieves the body of the material when lithium is embeddedThe volume is expanded, so that the electrochemical performance of the battery is effectively improved. Thereby Fe2O3/Fe7S8The composite electrode exhibits a high reversible capacity. The charge and discharge cycle is 200 times at 0.1C multiplying power, and the capacity is as high as 1000 mAh/g.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 shows Fe prepared in example 17S8/Fe2O3Scanning Electron Microscope (SEM) images of (a).
FIG. 2 shows Fe prepared in example 17S8/Fe2O3X-ray diffraction (XRD) pattern of (A) and (B) Fe2O3And Fe7S8Standard card drawings.
FIG. 3 is Fe prepared in example 17S8/Fe2O3X-ray photoelectron spectroscopy (XPS).
FIG. 4 shows Fe prepared in example 17S8/Fe2O3And a 0.1C constant current charge and discharge curve diagram of the battery assembled by the negative electrode material prepared by the sample.
FIG. 5 shows Fe prepared in example 17S8/Fe2O3Cyclic Voltammetry (CV) curves after the sample prepared negative electrode material was assembled into a battery.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
0.6g of Fe (NO)3)·9H2O, 1.19g of urotropin and 0.12g of sublimed sulfur were dissolved in 30mL of water, and the mixture was stirred for 20min, and then the resulting solution was poured into an autoclave (50 mL) and placed in an oven at 180 ℃ for reaction for 10 h. After cooling to room temperature, the obtained precipitate was washed with water and ethanol 2-3 times, respectively. Finally, Fe7S8/Fe2O3The powder was dried in a vacuum oven at 80 ℃ for 8 hours. Then transferred to a tube furnace in N2Annealing at 500 deg.C for 2h at a temperature of 5 deg.C/min-1。
Example 2
0.6g of Fe (NO)3)·9H2O, 1.12g of urotropin and 0.12g of sublimed sulfur were dissolved in 30mL of water, and the mixture was stirred for 20min, and then the resulting solution was poured into an autoclave (50 mL) and placed in an oven at 180 ℃ for reaction for 10 h. After cooling to room temperature, the obtained precipitate was washed with water and ethanol 2-3 times, respectively. Finally, Fe7S8/Fe2O3The powder was dried in a vacuum oven at 80 ℃ for 8 hours. Then transferred to a tube furnace in N2Annealing at 500 deg.C for 2h at a temperature of 5 deg.C/min-1。
Example 3
0.6g of Fe (NO)3)·9H2O, 1.26g of urotropin and 0.12g of sublimed sulfur were dissolved in 30mL of water, the mixture was stirred for 20min, and then the resulting solution was poured into an autoclave (50 mL) and placed in an oven at 180 ℃ for reaction for 10 h. After cooling to room temperature, the obtained precipitate was washed with water and ethanol 2-3 times, respectively. Finally, Fe7S8/Fe2O3The powder was dried in a vacuum oven at 80 ℃ for 8 hours. Then transferred to a tube furnace in N2Annealing at 500 deg.C for 2h at a temperature of 5 deg.C/min-1。
Example 4
0.6g of Fe (NO)3)·9H2Dissolving O, 1.19g urotropin and 0.12g sublimed sulfur in 30mL water, stirring the mixture for 20min, and adding sodium chlorideThe resulting solution was poured into an autoclave (50 mL) and placed in an oven at 180 ℃ for 8 h. After cooling to room temperature, the obtained precipitate was washed with water and ethanol 2-3 times, respectively. Finally, Fe7S8/Fe2O3The powder was dried in a vacuum oven at 80 ℃ for 8 hours. Then transferred to a tube furnace in N2Annealing at 500 deg.C for 2h at a temperature of 5 deg.C/min-1。
Example 5
0.6g of Fe (NO)3)·9H2O, 1.19g of urotropin and 0.12g of sublimed sulfur were dissolved in 30mL of water, the mixture was stirred for 20min, and then the resulting solution was poured into an autoclave (50 mL) and placed in an oven at 180 ℃ for reaction for 12 h. After cooling to room temperature, the obtained precipitate was washed with water and ethanol 2-3 times, respectively. Finally, Fe7S8/Fe2O3The powder was dried in a vacuum oven at 80 ℃ for 8 hours. Then transferred to a tube furnace in N2Annealing at 500 deg.C for 2h at a temperature of 5 deg.C/min-1。
Example 6
0.6g of Fe (NO)3)·9H2O, 1.1g of urotropin and 0.12g of sublimed sulfur were dissolved in 30mL of water, the mixture was stirred for 20min, and then the resulting solution was poured into an autoclave (50 mL) and placed in an oven at 160 ℃ for reaction for 8 h. After cooling to room temperature, the obtained precipitate was washed with water and ethanol 2-3 times, respectively. Finally, Fe7S8/Fe2O3The powder was dried in a vacuum oven at 80 ℃ for 8 hours. Then transferred to a tube furnace in N2Annealing at 450 deg.C for 2.5h in the atmosphere, and heating rate of 5 deg.C/min-1。
Example 7
0.6g of Fe (NO)3)·9H2O, 1.30g of urotropin and 0.12g of sublimed sulfur were dissolved in 30mL of water, the mixture was stirred for 20min, and then the resulting solution was poured into an autoclave (50 mL) and placed in an oven at 200 ℃ for reaction for 16 h. After cooling to room temperature, the obtained precipitate was washed with water and ethanol 2-3 times, respectively. Finally, Fe7S8/Fe2O3The powder is placed in a vacuum drying ovenDrying at 80 ℃ for 8 hours. Then transferred to a tube furnace in N2Annealing at 550 ℃ for 3h under the atmosphere, wherein the heating rate is 5 ℃ per minute-1。
Examples of the effects of the invention
Mixing the black magnetic powder obtained in the above embodiment with Super P, PVDF and N-methylpyrrolidone in proportion, coating the mixture on a copper foil, and drying the copper foil at 80 ℃ for 12 hours; then slicing and drying for 4 hours at 80 ℃ to obtain the lithium ion battery negative pole piece. And assembling the pole piece, the sodium metal, the diaphragm and the electrolyte into a battery, and testing, wherein the composite lithium ion battery negative electrode material Fe prepared in the embodiment 1 is7S8/Fe2O3The best results of the charge and discharge performance test after the battery is assembled (as shown in fig. 3).
FIG. 1 shows sample Fe2O3/Fe7S8The Scanning Electron Microscope (SEM) image shows that the composite material is like a pine needle ball and has a relatively large surface area to be contacted with the electrolyte.
FIG. 2 is a view showing the sequence of Fe prepared by the present invention from top to bottom7S8/Fe2O3X-ray diffraction (XRD) pattern of (A) and (B) Fe2O3And Fe7S8Standard card drawing, which shows that the invention successfully prepares Fe7S8/Fe2O3A material.
FIG. 3 shows Fe prepared by the present invention7S8/Fe2O3Further illustrating the successful preparation of Fe by the present invention, X-ray photoelectron spectroscopy (XPS)7S8/Fe2O3A material.
FIG. 4 shows Fe in sample7S8/Fe2O3A0.1C constant-current charge-discharge curve diagram after the negative electrode material prepared by the sample is assembled into a battery shows that the discharge capacity reaches 1000 mAh/g after 200 cycles.
FIG. 5 shows Fe in sample7S8/Fe2O3Cyclic Voltammetry (CV) curves after the sample prepared negative electrode material was assembled into a battery.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. Lithium ion battery cathode Fe7S8/Fe2O3The preparation method of the composite material is characterized by comprising the following steps: dissolving iron salt, urotropine and sublimed sulfur in water, stirring, carrying out hydrothermal reaction, washing, drying and calcining the obtained product to obtain Fe7S8/Fe2O3A composite material.
2. The method of claim 1, wherein: the iron salt is Fe (NO)3)·9H2The mass ratio of the iron salt to the urotropine to the sublimed sulfur is 0.6: (1.1-1.3): 0.12.
3. the method of claim 1, wherein: the hydrothermal reaction temperature is 160-200 ℃ and the time is 8-16 h.
4. The method of claim 1, wherein: the calcination temperature of the dried product is 450-500 ℃, and the time is 2-3 h.
5. The composite material produced by the production method according to any one of claims 1 to 4, wherein: said Fe7S8/Fe2O3The composite material is in a pine needle ball shape, and the particle size is uniform.
6. Use of the composite material of claim 5 in a negative electrode material for a lithium ion battery.
7. Use according to claim 6, characterized in that: the battery capacity is up to 1000 mAh/g after charging and discharging circulation for 200 times at 0.1C multiplying power.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023937A (en) * | 2021-11-02 | 2022-02-08 | 欣旺达电动汽车电池有限公司 | Fe3O4/Fe7S8@ C composite material, preparation method thereof, lithium ion battery cathode and lithium ion battery |
| CN115154482A (en) * | 2022-01-14 | 2022-10-11 | 河北金益合生物技术有限公司 | Application of iron sulfide nanoenzyme to human papilloma virus resistance |
| CN115676900A (en) * | 2022-10-24 | 2023-02-03 | 江西师范大学 | Lithium ion battery cathode Fe 7 S 8 /C composite material and preparation method and application thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4143213A (en) * | 1978-04-26 | 1979-03-06 | Exxon Research & Engineering Co. | Cells having cathodes containing chalcogenide compounds of the formula Ma FeXb and species thereof exhibiting alkali metal incorporation |
| CN103259012A (en) * | 2013-05-15 | 2013-08-21 | 江西师范大学 | Preparation method of three-dimensional conductive super-iron battery K2FeO4/C composite negative pole material |
| CN104672357A (en) * | 2013-11-29 | 2015-06-03 | 合肥杰事杰新材料股份有限公司 | Preparation method of composite material of graphene-carbon nanotube hybrid reinforced polymer |
| CN107394174A (en) * | 2017-07-28 | 2017-11-24 | 鲁东大学 | A kind of preparation method of iron oxide mesoporous carbon lithium ion battery negative material |
| CN108598403A (en) * | 2018-04-16 | 2018-09-28 | 江西师范大学 | The forming method of lithium ion battery transiton metal binary oxides negative material |
| CN109449407A (en) * | 2018-10-30 | 2019-03-08 | 西南科技大学 | It can be applied to the Fe of high performance lithium ion battery7S8The preparation method of@C nano bar material |
| CN110357168A (en) * | 2019-05-14 | 2019-10-22 | 江西师范大学 | A kind of preparation method of lithium ion battery negative material |
| CN111217350A (en) * | 2018-11-24 | 2020-06-02 | 启东茂材实业有限公司 | Preparation method of pine needle-shaped carbon nanotube/carbon fiber composite carbon material |
| CN111477847A (en) * | 2020-04-08 | 2020-07-31 | 扬州大学 | Box-shaped necklace multilevel structure Fe7S8/WS2@ C-CNFs lithium ion battery negative electrode material and preparation method thereof |
| CN111517374A (en) * | 2020-04-20 | 2020-08-11 | 鸡西市唯大新材料科技有限公司 | Fe7S8Preparation method of/C composite material |
| CN111883758A (en) * | 2020-07-29 | 2020-11-03 | 江西师范大学 | Three-dimensionally crosslinked composite Fe3O4/FeS/rGO and preparation method and application thereof |
-
2021
- 2021-06-17 CN CN202110671765.8A patent/CN113401948B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4143213A (en) * | 1978-04-26 | 1979-03-06 | Exxon Research & Engineering Co. | Cells having cathodes containing chalcogenide compounds of the formula Ma FeXb and species thereof exhibiting alkali metal incorporation |
| CN103259012A (en) * | 2013-05-15 | 2013-08-21 | 江西师范大学 | Preparation method of three-dimensional conductive super-iron battery K2FeO4/C composite negative pole material |
| CN104672357A (en) * | 2013-11-29 | 2015-06-03 | 合肥杰事杰新材料股份有限公司 | Preparation method of composite material of graphene-carbon nanotube hybrid reinforced polymer |
| CN107394174A (en) * | 2017-07-28 | 2017-11-24 | 鲁东大学 | A kind of preparation method of iron oxide mesoporous carbon lithium ion battery negative material |
| CN108598403A (en) * | 2018-04-16 | 2018-09-28 | 江西师范大学 | The forming method of lithium ion battery transiton metal binary oxides negative material |
| CN109449407A (en) * | 2018-10-30 | 2019-03-08 | 西南科技大学 | It can be applied to the Fe of high performance lithium ion battery7S8The preparation method of@C nano bar material |
| CN111217350A (en) * | 2018-11-24 | 2020-06-02 | 启东茂材实业有限公司 | Preparation method of pine needle-shaped carbon nanotube/carbon fiber composite carbon material |
| CN110357168A (en) * | 2019-05-14 | 2019-10-22 | 江西师范大学 | A kind of preparation method of lithium ion battery negative material |
| CN111477847A (en) * | 2020-04-08 | 2020-07-31 | 扬州大学 | Box-shaped necklace multilevel structure Fe7S8/WS2@ C-CNFs lithium ion battery negative electrode material and preparation method thereof |
| CN111517374A (en) * | 2020-04-20 | 2020-08-11 | 鸡西市唯大新材料科技有限公司 | Fe7S8Preparation method of/C composite material |
| CN111883758A (en) * | 2020-07-29 | 2020-11-03 | 江西师范大学 | Three-dimensionally crosslinked composite Fe3O4/FeS/rGO and preparation method and application thereof |
Non-Patent Citations (4)
| Title |
|---|
| 周琪: "多孔金属氧（硫）化物负极材料的制备及锂电性能研究", 《中国优秀硕士学位论文全文数据库 》 * |
| 荣华等: "用作锂离子电池负极的FeS_2微球的制备及性能", 《高等学校化学学报》 * |
| 许希军等: "铁基电极材料在锂/钠离子电池中的应用研究进展", 《中国材料进展》 * |
| 黄海军等: "Fe/FeO/FeS混合物的Hugoniot线研究", 《高压物理学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023937A (en) * | 2021-11-02 | 2022-02-08 | 欣旺达电动汽车电池有限公司 | Fe3O4/Fe7S8@ C composite material, preparation method thereof, lithium ion battery cathode and lithium ion battery |
| CN115154482A (en) * | 2022-01-14 | 2022-10-11 | 河北金益合生物技术有限公司 | Application of iron sulfide nanoenzyme to human papilloma virus resistance |
| CN115676900A (en) * | 2022-10-24 | 2023-02-03 | 江西师范大学 | Lithium ion battery cathode Fe 7 S 8 /C composite material and preparation method and application thereof |
| CN115676900B (en) * | 2022-10-24 | 2024-04-09 | 江西师范大学 | Lithium ion battery cathode Fe 7 S 8 Composite material/C, preparation method and application thereof |
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