CN110921722A - Preparation method of regular-morphology lithium nickel manganese oxide positive electrode material - Google Patents
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- C01G53/44—Nickelates containing alkali metals, e.g. LiNiO2 containing manganese
- C01G53/54—Nickelates containing alkali metals, e.g. LiNiO2 containing manganese of the type [Mn2O4]-, e.g. Li(NixMn2-x)O4, Li(MyNixMn2-x-y)O4
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- 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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Abstract
The invention discloses a preparation method of a lithium nickel manganese oxide positive electrode material with a regular shape. The method comprises the following steps: (1) dissolving manganese sulfate in a mixed solution of deionized water and ethanol, and uniformly stirring to obtain a product A; (2) dissolving ammonium bicarbonate in deionized water, and stirring to obtain product B; (3) pouring the product B into the product A, stirring for reaction, standing, filtering, washing, and drying to obtain manganese carbonate powder (product C); (4) placing the product C in a muffle furnace, and sintering at the temperature of 500-550 ℃ for 8h to obtain a black solid of manganese sesquioxide, namely a product D; (5) adding product D, nickel acetate tetrahydrate and lithium acetate into ethanol, and stirring until ethanol is completely volatilized to obtain product E; (6) grinding the product E, and sintering at the temperature of 700-900 ℃ to obtain a finished product. The preparation method has the beneficial effects of regular shape and good electrochemical performance.
Description
Technical Field
The invention relates to a preparation method of a lithium nickel manganese oxide positive electrode material, in particular to a preparation method of a lithium nickel manganese oxide positive electrode material with a regular shape.
Background
The energy is the material basis for human reproduction and survival, and the development of the human society cannot leave the use of high-quality energy and the development of novel advanced energy. The energy sources exist in nature in various forms, and various fuels, running water, sun, wind and the like can be converted into the energy required by human activities under the intervention of the human activities. At present, fossil energy mainly represented by petroleum, coal, and natural gas is the basis of global energy. However, with the advancement of science and technology and the rapid increase of human needs, the excessive development and improper use of the existing fossil energy causes severe energy crisis and environmental pollution. Therefore, the search for clean and pollution-free new energy and the adoption of efficient energy storage technology become the first prerequisites for the development of the current society. The huge crisis faced by the traditional energy sources promotes the rapid development and wide application of new energy sources such as wind energy, solar energy, nuclear energy and the like. The electric energy as the secondary energy is widely applied due to convenient production, quick and safe transmission and clean and pollution-free use process, promotes scientific and technological development and social progress, and is a social modernized cornerstone.
LiNi of spinel structure0.5Mn1.5O4The anode material has the advantages of high energy density, high working voltage, simple preparation and the like, and just meets the requirements of a new generation of lithium ion batteries. But has certain defects, and the John-teller effect makes the structure unstable and easy to collapse, thereby reducing the cycle performance. It is a hot spot of current research to modify it to improve its performance. Common modification methods mainly include optimization of synthesis process, doping, coating and the like. The optimization of the synthesis process is mainly realized by changing the micro-morphology of the material to be in a regular wayThe stable morphology exists, so that the negative influence caused by structural collapse due to the John-teller effect can be reduced, the transmission rate of lithium ions can be effectively improved, and the charge-discharge efficiency of the lithium ion battery is improved. The traditional preparation method is mainly a solid phase method, and has the advantages of simple operation and easy control. But it also has a fatal disadvantage that the morphology of the synthesized material can not be controlled in the synthesis process, and the morphology of the synthesized material is in an irregular state, so that the electrochemical performance of the synthesized material can not reach the expected target.
Disclosure of Invention
The invention aims to provide a preparation method of a lithium nickel manganese oxide positive electrode material with a regular morphology. The preparation method has the characteristics of regular shape and good electrochemical performance.
The technical scheme of the invention is as follows: a preparation method of a lithium nickel manganese oxide positive electrode material with a regular morphology comprises the following steps:
(1) dissolving manganese sulfate in a mixed solution of deionized water and ethanol, and uniformly stirring to obtain a product A;
(2) dissolving ammonium bicarbonate in deionized water, and stirring to obtain product B;
(3) pouring the product B into the product A, stirring for reaction, standing, filtering, washing, and drying to obtain manganese carbonate powder (product C);
(4) placing the product C in a muffle furnace, and sintering at the temperature of 500-550 ℃ for 8h to obtain a black solid of manganese sesquioxide, namely a product D;
(5) adding product D, nickel acetate tetrahydrate and lithium acetate into ethanol, and stirring until ethanol is completely volatilized to obtain product E;
(6) grinding the product E, and sintering at the temperature of 700-900 ℃ to obtain a finished product.
In the preparation method of the lithium nickel manganese oxide cathode material with the regular morphology, in the step (1), 0.01-0.05mol of manganese sulfate is dissolved in a mixed solution of 400ml of deionized water and 100ml of ethanol.
In the preparation method of the lithium nickel manganese oxide cathode material with the regular morphology, in the step (2), 0.5-0.9mol of ammonium bicarbonate is dissolved in 400ml of deionized water.
In the preparation method of the regular-morphology lithium nickel manganese oxide cathode material, in the step (3), the product B is poured into the product A, the mixture is reacted for 30-60min at the temperature of 20-50 ℃ and the stirring speed of 300r/min, the mixture is kept stand for 2-5h, and after the mixture is subjected to suction filtration and washing, the mixture is dried for 2h at the temperature of 50-80 ℃ to obtain manganese carbonate powder, namely the product C.
In the preparation method of the regular-morphology lithium nickel manganese oxide cathode material, in the step (5), the product D, nickel acetate tetrahydrate and lithium acetate are added into 20ml of ethanol, wherein the mass amounts of Li, Ni and Mn are 1.05:0.5: 1.5.
In the preparation method of the lithium nickel manganese oxide cathode material with the regular morphology, in the step (6), the product E is ground to 0.001-0.005 mm.
In the preparation method of the lithium nickel manganese oxide cathode material with the regular morphology, in the step (6), the temperature rise rate of sintering at 700-900 ℃ is 5 ℃/min, and the sintering time is 15-20 h.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the spherical precursor is prepared by the template method in the steps (1), (2), (3) and (4), the lithium source and the nickel source are added in the step (5) and then are immersed in ethanol, and according to the Kerkinjel effect, the lithium source and the nickel source can invade into the spherical manganese dioxide precursor, so that the spherical manganese dioxide precursor can be uniformly distributed and has a regular appearance in the sintering process in the step (6).
2. The invention controls the morphology of the material by different sintering processes in the step (6), and is simple and safe to operate by testing and comparing the performance of the material with different morphologies.
Experiments prove that:
1. aiming at the step (6) of the method, 2 groups of experiments are mainly carried out for comparison, namely A1 (heating from room temperature to 700 ℃ at the speed of 5 ℃/min, keeping the temperature for 15h, and then cooling to the room temperature along with the furnace); b1 (raising the temperature from room temperature to 850 ℃ at the speed of 5 ℃/min, then lowering the temperature to 700 ℃ at the speed of 0.5 ℃/min, preserving the temperature for 20h, and cooling to the room temperature along with the furnace), and performing SEM tests on the two samples respectively, wherein the test results are shown in figure 1, a, B and c are SEM pictures taken by A1, h, i and j are SEM pictures taken by B1, and the graph shows that A1 mainly has a spherical shape, wherein a part of unstable reticular shapes exist, B1 mainly exists in a spinel-type octahedron, and the structure is stable and regular;
2. electrochemical tests were performed on each of the two samples, and the results obtained were a 1: the first-circle specific discharge capacity under the multiplying power of 0.5C is 120mAh/g, and after 100-circle circulation, the capacity retention rate is 82%; b1: the first-circle specific discharge capacity under the multiplying power of 0.5C is 117mAh/g, and after 100-circle circulation, the capacity retention rate is 91%; it can be concluded that the a1 first turn specific capacity is optimal, but the B1 dimension is optimal in terms of cycling stability.
In conclusion, the preparation method has the beneficial effects of regular shape and good electrochemical performance.
Drawings
FIG. 1 is an SEM image of the experimental demonstrations of the invention, A1 and B1.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.
Example 1. A preparation method of a lithium nickel manganese oxide positive electrode material with a regular morphology comprises the following steps:
(1) dissolving 0.01mol of manganese sulfate in a mixed solution of 400ml of deionized water and 100ml of ethanol, and uniformly stirring to obtain a product A;
(2) dissolving 0.5mol ammonium bicarbonate in 400ml deionized water, and stirring to obtain product B;
(3) pouring the product B into the product A, reacting at 20 deg.C and stirring speed of 300r/min for 30min, standing for 2h, filtering, washing, and drying at 50 deg.C for 2h to obtain manganese carbonate powder as product C;
(4) putting the product C into a muffle furnace, and sintering for 8h at 500 ℃ to obtain a black solid of manganese sesquioxide, namely a product D;
(5) adding product D, nickel acetate tetrahydrate and lithium acetate into 20ml ethanol, and stirring until the ethanol is completely volatilized to obtain product E; wherein the mass of Li, Ni and Mn is 1.05:0.5: 1.5;
(6) grinding the product E to 0.001mm, and sintering at 700 deg.C for 15h at a heating rate of 5 deg.C/min to obtain the final product.
Example 2. A preparation method of a lithium nickel manganese oxide positive electrode material with a regular morphology comprises the following steps:
(1) dissolving 0.02mol of manganese sulfate in a mixed solution of 400ml of deionized water and 100ml of ethanol, and uniformly stirring to obtain a product A;
(2) dissolving 0.6mol ammonium bicarbonate in 400ml deionized water, and stirring to obtain product B;
(3) pouring the product B into the product A, reacting at 30 deg.C and stirring speed of 300r/min for 40min, standing for 3h, filtering, washing, and drying at 60 deg.C for 2h to obtain manganese carbonate powder as product C;
(4) placing the product C in a muffle furnace, and sintering at 510 ℃ for 8h to obtain a black solid of manganese sesquioxide, namely a product D;
(5) adding product D, nickel acetate tetrahydrate and lithium acetate into 20ml ethanol, and stirring until the ethanol is completely volatilized to obtain product E; wherein the mass of Li, Ni and Mn is 1.05:0.5: 1.5;
(6) grinding the product E to 0.002mm, and sintering at 7500 deg.C for 17h at a heating rate of 5 deg.C/min to obtain the final product.
Example 3. A preparation method of a lithium nickel manganese oxide positive electrode material with a regular morphology comprises the following steps:
(1) dissolving 0.03mol of manganese sulfate in a mixed solution of 400ml of deionized water and 100ml of ethanol, and uniformly stirring to obtain a product A;
(2) dissolving 0.7mol ammonium bicarbonate in 400ml deionized water, and stirring to obtain product B;
(3) pouring the product B into the product A, reacting at 40 deg.C and stirring speed of 300r/min for 50min, standing for 4h, filtering, washing, and drying at 70 deg.C for 2h to obtain manganese carbonate powder as product C;
(4) putting the product C into a muffle furnace, and sintering at 540 ℃ for 8h to obtain a black solid of manganese sesquioxide, namely a product D;
(5) adding product D, nickel acetate tetrahydrate and lithium acetate into 20ml ethanol, and stirring until the ethanol is completely volatilized to obtain product E; wherein the mass of Li, Ni and Mn is 1.05:0.5: 1.5;
(6) grinding the product E to 0.003mm, and sintering at 800 deg.C for 15-20h at a heating rate of 5 deg.C/min to obtain the final product.
Example 4. A preparation method of a lithium nickel manganese oxide positive electrode material with a regular morphology comprises the following steps:
(1) dissolving 0.04mol of manganese sulfate in a mixed solution of 400ml of deionized water and 100ml of ethanol, and uniformly stirring to obtain a product A;
(2) dissolving 0.8mol ammonium bicarbonate in 400ml deionized water, and stirring to obtain product B;
(3) pouring the product B into the product A, reacting at 40 deg.C and stirring speed of 300r/min for 50min, standing for 4h, filtering, washing, and drying at 70 deg.C for 2h to obtain manganese carbonate powder as product C;
(4) putting the product C into a muffle furnace, and sintering at 540 ℃ for 8h to obtain a black solid of manganese sesquioxide, namely a product D;
(5) adding product D, nickel acetate tetrahydrate and lithium acetate into 20ml ethanol, and stirring until the ethanol is completely volatilized to obtain product E; wherein the mass of Li, Ni and Mn is 1.05:0.5: 1.5;
(6) grinding the product E to 0.004mm, and sintering at 850 ℃ for 18h at the heating rate of 5 ℃/min to obtain a finished product.
Example 5. A preparation method of a lithium nickel manganese oxide positive electrode material with a regular morphology comprises the following steps:
(1) dissolving 0.05mol of manganese sulfate in a mixed solution of 400ml of deionized water and 100ml of ethanol, and uniformly stirring to obtain a product A;
(2) dissolving 0.9mol ammonium bicarbonate in 400ml deionized water, and stirring to obtain product B;
(3) pouring the product B into the product A, reacting at 20-50 deg.C and stirring speed of 300r/min for 60min, standing for 5 hr, filtering, washing, and drying at 80 deg.C for 2 hr to obtain manganese carbonate powder as product C;
(4) placing the product C in a muffle furnace, and sintering at 550 ℃ for 8h to obtain a black solid of manganese sesquioxide, namely a product D;
(5) adding product D, nickel acetate tetrahydrate and lithium acetate into 20ml ethanol, and stirring until the ethanol is completely volatilized to obtain product E; wherein the mass of Li, Ni and Mn is 1.05:0.5: 1.5;
(6) grinding the product E to 0.005mm, and sintering at 900 deg.C for 20h at a heating rate of 5 deg.C/min to obtain the final product.
Claims (7)
1. A preparation method of a lithium nickel manganese oxide positive electrode material with a regular morphology is characterized by comprising the following steps: the method comprises the following steps:
(1) dissolving manganese sulfate in a mixed solution of deionized water and ethanol, and uniformly stirring to obtain a product A;
(2) dissolving ammonium bicarbonate in deionized water, and stirring to obtain product B;
(3) pouring the product B into the product A, stirring for reaction, standing, filtering, washing, and drying to obtain manganese carbonate powder (product C);
(4) placing the product C in a muffle furnace, and sintering at the temperature of 500-550 ℃ for 8h to obtain a black solid of manganese sesquioxide, namely a product D;
(5) adding product D, nickel acetate tetrahydrate and lithium acetate into ethanol, and stirring until ethanol is completely volatilized to obtain product E;
(6) grinding the product E, and sintering at the temperature of 700-900 ℃ to obtain a finished product.
2. The preparation method of the regular-morphology lithium nickel manganese oxide cathode material according to claim 1, characterized by comprising the following steps: in the step (1), 0.01-0.05mol of manganese sulfate is dissolved in a mixed solution of 400ml of deionized water and 100ml of ethanol.
3. The preparation method of the regular-morphology lithium nickel manganese oxide cathode material according to claim 1, characterized by comprising the following steps: in the step (2), 0.5-0.9mol of ammonium bicarbonate is dissolved in 400ml of deionized water.
4. The preparation method of the regular-morphology lithium nickel manganese oxide cathode material according to claim 1, characterized by comprising the following steps: in the step (3), the product B is poured into the product A, the mixture reacts for 30-60min at the temperature of 20-50 ℃ and the stirring speed of 300r/min, the mixture stands for 2-5h, and is dried for 2h at the temperature of 50-80 ℃ after being filtered and washed, so that manganese carbonate powder, namely the product C, is obtained.
5. The preparation method of the regular-morphology lithium nickel manganese oxide cathode material according to claim 1, characterized by comprising the following steps: in the step (5), the D product, nickel acetate tetrahydrate and lithium acetate are added into 20ml of ethanol, wherein the mass ratio of Li to Ni to Mn is 1.05 to 0.5 to 1.5.
6. The preparation method of the regular-morphology lithium nickel manganese oxide cathode material according to claim 1, characterized by comprising the following steps: in the step (6), grinding the product E to 0.001-0.005 mm.
7. The preparation method of the regular-morphology lithium nickel manganese oxide cathode material according to claim 1, characterized by comprising the following steps: in the step (6), the temperature rise rate of sintering at the temperature of 700-900 ℃ is 5 ℃/min, and the sintering time is 15-20 h.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114105221A (en) * | 2021-11-23 | 2022-03-01 | 合肥综合性国家科学中心能源研究院(安徽省能源实验室) | Diamond high-voltage LiNi prepared by template method for lithium ion battery0.5Mn1.5O4Method for preparing anode material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474650A (en) * | 2013-10-11 | 2013-12-25 | 哈尔滨工业大学 | Method for preparing hollow high voltage nickel manganese acid lithium anode material |
| CN104900865A (en) * | 2015-04-10 | 2015-09-09 | 合肥国轩高科动力能源股份公司 | High practicality lithium nickel manganese oxide and preparation method thereof |
| WO2015139482A1 (en) * | 2014-03-17 | 2015-09-24 | 华南理工大学 | High-voltage lithium-ion battery positive electrode material having spinel structure and preparation method thereof |
| CN105024062A (en) * | 2015-06-19 | 2015-11-04 | 吉林大学 | Sub-micron lithium nickel manganese oxide with truncated octahedral structure and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474650A (en) * | 2013-10-11 | 2013-12-25 | 哈尔滨工业大学 | Method for preparing hollow high voltage nickel manganese acid lithium anode material |
| WO2015139482A1 (en) * | 2014-03-17 | 2015-09-24 | 华南理工大学 | High-voltage lithium-ion battery positive electrode material having spinel structure and preparation method thereof |
| CN104900865A (en) * | 2015-04-10 | 2015-09-09 | 合肥国轩高科动力能源股份公司 | High practicality lithium nickel manganese oxide and preparation method thereof |
| CN105024062A (en) * | 2015-06-19 | 2015-11-04 | 吉林大学 | Sub-micron lithium nickel manganese oxide with truncated octahedral structure and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114105221A (en) * | 2021-11-23 | 2022-03-01 | 合肥综合性国家科学中心能源研究院(安徽省能源实验室) | Diamond high-voltage LiNi prepared by template method for lithium ion battery0.5Mn1.5O4Method for preparing anode material |
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