CN114551853A - Multi-metal oxide sodium ion battery positive electrode material and preparation method thereof - Google Patents
Multi-metal oxide sodium ion battery positive electrode material and preparation method thereof Download PDFInfo
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- CN114551853A CN114551853A CN202210176273.6A CN202210176273A CN114551853A CN 114551853 A CN114551853 A CN 114551853A CN 202210176273 A CN202210176273 A CN 202210176273A CN 114551853 A CN114551853 A CN 114551853A
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- ion battery
- positive electrode
- metal oxide
- sodium
- electrode material
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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
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
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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
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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
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
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- 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 invention relates to the technical field of sodium ion batteries, in particular to a multielement metal oxide sodium ion battery anode material and a preparation method thereof, wherein the material comprises the following raw materials in parts by weight: 0.7 part of sodium carbonate, 0.8 part of manganese dioxide, 0.1 part of ferric oxide, 0.1 part of zinc oxide and 0.1 part of copper oxide; the method comprises the following steps: firstly, weighing materials; secondly, adding a certain amount of acetone; thirdly, high-energy ball milling; fourthly, drying; and fifthly, sintering. The invention has simple synthesis and low cost, and the prepared sodium ion battery anode material has higher capacity and better cycle performance than the conventional product.
Description
Technical Field
The invention relates to the technical field of sodium ion batteries, in particular to a multielement metal oxide sodium ion battery positive electrode material and a preparation method thereof.
Background
Lithium ion batteries have been widely used in various fields of our daily lives, such as electronic products, electric vehicles, and large-scale energy storage power stations. However, the shortage of lithium resource in the world causes the price to rise rapidly, and the demand of energy storage in the world is not satisfied gradually. Therefore, the development of an energy storage device capable of replacing a lithium ion battery is urgently needed. Sodium element has low cost and abundant resources, and has chemical properties similar to lithium, so sodium ion batteries become a hot point for research of scientists at home and abroad and are expected to replace the current lithium ion batteries. The positive electrode of the sodium-ion battery is a main factor for limiting the energy density, however, the current positive electrode material of the sodium-ion battery generally has the defects of low capacity and poor cycle performance, so that the development of the positive electrode of the sodium-ion battery with low cost, high capacity, large multiplying power and stable cycle has important strategic significance.
Disclosure of Invention
The invention provides a multi-metal oxide sodium-ion battery positive electrode material and a preparation method thereof, which can overcome certain defects in the prior art.
The positive electrode material of the sodium ion battery of the multi-element metal oxide comprises the following raw materials in parts by weight: 0.7 part of sodium carbonate, 0.8 part of manganese dioxide, 0.1 part of ferric oxide, 0.1 part of zinc oxide and 0.1 part of copper oxide.
The invention also provides a preparation method of the multielement metal oxide sodium ion battery anode material, which adopts the multielement metal oxide sodium ion battery anode material and comprises the following steps:
firstly, weighing materials;
secondly, adding a certain amount of acetone;
thirdly, high-energy ball milling;
fourthly, drying;
and fifthly, firing.
Preferably, in step three, the high energy ball milling is performed by a ball mill.
Preferably, in the third step, the ball milling condition is 500 rpm.
Preferably, in the fourth step, the drying temperature is 100 ℃.
Preferably, in the fourth step, the drying time is 12 hours.
Preferably, in the fifth step, the firing temperature is 850 ℃.
Preferably, in the fifth step, the firing is performed in an air atmosphere for 15 hours.
Preferably, after step five, the final product is obtained, and the synthesis of the material is proved to be the target product by XRD.
The invention has simple synthesis and low cost, and the prepared sodium ion battery anode material has higher capacity and better cycle performance than the conventional product.
Drawings
FIG. 1 is a flow chart of a method for preparing the positive electrode material of the multi-metal oxide sodium-ion battery in example 1;
FIG. 2 is a schematic view of the first three charge-discharge curves in example 1;
FIG. 3 is a graphical representation of the cycle performance curve of example 1.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention and not limiting.
Example 1
The embodiment provides a positive electrode material of a sodium ion battery, which comprises the following raw materials in parts by weight: 0.7 part of sodium carbonate, 0.8 part of manganese dioxide, 0.1 part of ferric oxide, 0.1 part of zinc oxide and 0.1 part of copper oxide. Conventional NaxMnO2Structural and chemical instability requires stabilization of the structure by doping with transition metals such as iron, zinc, copper, etc.
As shown in fig. 1, this embodiment further provides a method for preparing a multi-metal oxide sodium-ion battery positive electrode material, which uses the above-mentioned multi-metal oxide sodium-ion battery positive electrode material, and includes the following steps:
firstly, weighing materials;
secondly, adding a certain amount of acetone;
thirdly, high-energy ball milling;
fourthly, drying;
and fifthly, firing.
In the third step, high-energy ball milling is carried out by a ball mill.
In the third step, the ball milling condition is 350 r/min.
In the fourth step, the drying temperature is 120 ℃.
In the fourth step, the drying time is 12 hours.
In the fifth step, the firing temperature is 900 ℃.
In the fifth step, the firing is carried out in an air atmosphere for 15 hours.
And fifthly, obtaining a final product, and proving that the synthesized material is a target product by XRD.
The positive electrode material of the sodium ion battery of the multi-element metal oxide prepared by the embodiment adopts low-cost raw materials, such as transition metal oxide, according to a certain proportion, and can be obtained through a simple ball milling technology and sintering, so that the positive electrode material with excellent performance is easy to produce in a large scale.
The cathode material prepared by the scheme is used and the cathode material is prepared at 50mA g-1Under the current density, the discharge specific capacity is higher than 140mAh g-1After 200 cycles, the capacity retention rate was 100%, exhibiting excellent cycle stability, as shown in fig. 2 and 3.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (9)
1. A positive electrode material of a multi-metal oxide sodium ion battery is characterized in that: the feed comprises the following raw materials in parts by weight: 0.7 part of sodium carbonate, 0.8 part of manganese dioxide, 0.1 part of ferric oxide, 0.1 part of zinc oxide and 0.1 part of copper oxide.
2. A preparation method of a multielement metal oxide sodium ion battery positive electrode material is characterized by comprising the following steps: the multielement metal oxide sodium-ion battery positive electrode material as claimed in claim 1 is adopted, and comprises the following steps:
firstly, weighing materials;
secondly, adding a certain amount of acetone;
thirdly, high-energy ball milling;
fourthly, drying;
and fifthly, sintering.
3. The method for preparing the positive electrode material of the sodium-ion battery of the multi-metal oxide as claimed in claim 2, wherein the method comprises the following steps: in the third step, high-energy ball milling is carried out by a ball mill.
4. The method for preparing the positive electrode material of the sodium-ion battery of the multi-metal oxide as claimed in claim 3, wherein the method comprises the following steps: in the third step, the ball milling condition is 500 r/min.
5. The method for preparing the positive electrode material of the sodium-ion battery of the multi-metal oxide according to claim 2, wherein the method comprises the following steps: in the fourth step, the drying temperature is 100 ℃.
6. The method for preparing the positive electrode material of the sodium-ion battery of the multi-metal oxide as claimed in claim 2, wherein the method comprises the following steps: in the fourth step, the drying time is 12 hours.
7. The method for preparing the positive electrode material of the sodium-ion battery of the multi-metal oxide as claimed in claim 2, wherein the method comprises the following steps: in the fifth step, the sintering temperature is 850 ℃.
8. The method for preparing the positive electrode material of the sodium-ion battery of the multi-metal oxide as claimed in claim 2, wherein the method comprises the following steps: in the fifth step, the firing is carried out in an air atmosphere for 15 hours.
9. The method for preparing the positive electrode material of the sodium-ion battery of the multi-metal oxide as claimed in claim 2, wherein the method comprises the following steps: and fifthly, obtaining a final product, and proving that the synthesized material is a target product by XRD.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115010186A (en) * | 2022-06-23 | 2022-09-06 | 复旦大学 | High-capacity oxygen valence-variable sodium ion battery positive electrode material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617288A (en) * | 2015-01-21 | 2015-05-13 | 中国科学院物理研究所 | Copper-based sodium-rich layered oxide material as well as preparation method and application thereof |
| CN104795552A (en) * | 2014-10-16 | 2015-07-22 | 中国科学院物理研究所 | Layered oxide material, preparation method, pole piece, secondary cell and application |
| CN111092220A (en) * | 2019-12-20 | 2020-05-01 | 华南理工大学 | M-element bulk phase doped modified manganese-based positive electrode material of tunnel-type sodium-ion battery and preparation method thereof |
| CN112456567A (en) * | 2020-11-18 | 2021-03-09 | 浙江钠创新能源有限公司 | Preparation method of sodium-ion battery positive electrode material with coating structure |
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- 2022-02-24 CN CN202210176273.6A patent/CN114551853A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795552A (en) * | 2014-10-16 | 2015-07-22 | 中国科学院物理研究所 | Layered oxide material, preparation method, pole piece, secondary cell and application |
| CN104617288A (en) * | 2015-01-21 | 2015-05-13 | 中国科学院物理研究所 | Copper-based sodium-rich layered oxide material as well as preparation method and application thereof |
| CN111092220A (en) * | 2019-12-20 | 2020-05-01 | 华南理工大学 | M-element bulk phase doped modified manganese-based positive electrode material of tunnel-type sodium-ion battery and preparation method thereof |
| CN112456567A (en) * | 2020-11-18 | 2021-03-09 | 浙江钠创新能源有限公司 | Preparation method of sodium-ion battery positive electrode material with coating structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115010186A (en) * | 2022-06-23 | 2022-09-06 | 复旦大学 | High-capacity oxygen valence-variable sodium ion battery positive electrode material and preparation method thereof |
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