CN114361432B - Lithium ion battery negative electrode material, and preparation method and application thereof - Google Patents
Lithium ion battery negative electrode material, and preparation method and application thereofInfo
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- CN114361432B CN114361432B CN202111523824.3A CN202111523824A CN114361432B CN 114361432 B CN114361432 B CN 114361432B CN 202111523824 A CN202111523824 A CN 202111523824A CN 114361432 B CN114361432 B CN 114361432B
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Abstract
The invention discloses a lithium ion battery anode material, a preparation method and application thereof. The lithium ion battery anode material comprises a material with a chemical formula of Li 2+4xTi1‑x(MoO4)3, wherein x is 0.2< 0.3. The Li 2+4xTi1‑x(MoO4)3 material has good crystallization, and when the lithium ion battery is prepared, the lithium ion battery has excellent cycle performance and high reversible capacity.
Description
Technical Field
The invention belongs to the technical field of lithium ion battery cathode materials, and particularly relates to a lithium ion battery cathode material, a preparation method and application thereof.
Background
With the increasing global environmental pollution and the progressive exhaustion of traditional fossil energy, the search and development of sustainable clean energy has become a common problem facing the world. Lithium ion batteries have become one of the most developed energy storage devices at present due to their excellent electrochemical properties. The lithium ion battery is widely applied and simultaneously needs to meet higher requirements, so that the development of a novel anode material with low working voltage, high capacity and good cycle stability is of great significance in the practical application of the lithium ion battery.
The traditional commercial graphite anode has low theoretical specific capacity (372 mAh g -1) and poor multiplying power performance, and cannot meet the increasing market demands gradually. Transition metal oxides offer high specific capacities based on transition metal multiple electron transfer during charge and discharge, and are considered to have potential as alternatives to the next generation commercial graphite anode materials. Molybdenum-based anode materials have a higher specific capacity as lithium ion battery anode due to the multiple electron transfer that molybdenum can undergo at low voltage (< 1V), such as molybdenum trioxide (MoO 3) has a theoretical capacity of 1117 mAh g -1 as lithium ion battery anode materials.
However, the transition metal oxide anode has the problems of poor conductivity, large volume change, poor cycle performance and the like in the charge and discharge process, and the commercial application prospect is limited. Therefore, it is important to find a transition metal oxide anode material having good conductivity and cycle stability for its practical application.
Disclosure of Invention
The first technical problem to be solved by the invention is as follows:
A lithium ion battery negative electrode material is provided. When the lithium ion battery anode material is used for preparing a lithium ion battery, the lithium ion battery has excellent cycle performance and high reversible capacity.
The second technical problem to be solved by the invention is as follows:
a preparation method of the lithium ion battery anode material is provided.
The third technical problem to be solved by the invention is:
the application of the lithium ion battery anode material.
In order to solve the first technical problem, the invention adopts the following technical scheme:
a lithium ion battery cathode material comprises a material with a chemical formula of Li 2+4xTi1-x(MoO4)3;
Wherein 0.2< x <0.3.
According to one embodiment of the invention, x is 0.23≤x≤0.26.
According to one embodiment of the invention, the particle size of the lithium ion battery anode material is 100nm-2 μm.
The lithium ion battery anode material is AMM' (a compound of XO 4)3) with a structure formula similar to Nasicon.
In order to solve the second technical problem, the invention adopts the following technical scheme:
A method for preparing the lithium ion battery anode material, comprising the following steps:
mixing lithium salt, titanium-containing compound, molybdenum-containing compound and chelating agent in solvent to obtain mixed solution;
heating the mixed solution to obtain wet gel;
and drying and sintering to obtain the lithium ion battery anode material.
Mixing lithium salt, titanium-containing compound, molybdenum-containing compound and chelating agent in solvent to obtain mixed solution, forming stable transparent sol system, heating sol in water bath, ageing, slowly polymerizing colloidal particles to form gel with three-dimensional network structure, and filling the gel network with solvent losing fluidity to form wet gel. And drying, sintering and solidifying the wet gel to prepare the lithium ion battery anode material.
The diffusion of the components in the sol-gel system is in the nanometer range, which makes the subsequent reaction easier to carry out, and the required temperature is lower, and the diffusion of the components in the solid phase reaction is in the micrometer range compared with the solid phase reaction, which makes the subsequent reaction conditions more demanding.
Li 2+4xTi1-x(MoO4)3 material synthesized by sol-gel method has single structure and no impurity phase. The Li 2+4xTi1-x(MoO4)3 material structure is an orthorhombic system, and the space group is Pnma.
According to one embodiment of the present invention, the lithium salt includes at least one of lithium carbonate and lithium acetate.
According to one embodiment of the present invention, the titanium-containing compound comprises at least one of titanium di (2-hydroxypropionate) diammonium hydroxide and tetrabutyl titanate.
According to one embodiment of the invention, the molybdenum-containing compound includes at least one of molybdate and molybdenum trioxide.
According to one embodiment of the present invention, the chelating agent comprises at least one of citric acid, ascorbic acid, oxalic acid and ethylenediamine tetraacetic acid, preferably citric acid, and the sintering reaction time and the residual carbon content can be reduced by utilizing citric acid self-combustion in the subsequent sintering.
Citric acid is decomposed to generate carbon dioxide and water to generate pores in the sintering process.
The amount of the chelating agent substance is 100% -300% of the sum of the amounts of titanium element and molybdenum element substances in the mixed solution.
According to one embodiment of the invention, the ratio of the amounts of substances of lithium element, titanium element and molybdenum element in the mixed solution is 1-1.1:0.5-1:2-4, preferably 1.05:0.75:3.
According to one embodiment of the invention, the drying and sintering are both under an air atmosphere.
According to one embodiment of the invention, the temperature at which the wet gel is dried is 150 ℃.
According to one embodiment of the invention, the sintering is divided into two steps, wherein the sintering is carried out at 300-400 ℃ for 2-6 hours, natural cooling and grinding are carried out, and the sintering is carried out at 500-600 ℃ for 8-16 hours.
In still another aspect of the present invention, there is provided a lithium ion battery comprising a positive electrode, a negative electrode, and a separator, the negative electrode comprising the lithium ion battery negative electrode material.
According to one embodiment of the invention, the lithium ion battery anode material and the metal lithium sheet form a battery, the electrolyte is a 1mol/L solution of ethylene carbonate/diethyl carbonate (EC/DME, volume ratio is 1:1) of LiClO 4, the battery is charged and discharged at a rate of 100mA/g, when the charging voltage is 0.01-3.0V, the first discharge specific capacity reaches 1375mAh/g, the reversible specific capacity reaches 950mAh/g, and after 100 weeks of circulation, the capacity retention rate still reaches 99%.
One of the technical schemes has at least one of the following advantages or beneficial effects:
1. The Li 2+4xTi1-x(MoO4)3 material synthesized by the method has a single structure and does not contain a hetero-phase;
2. The Li 2+4xTi1-x(MoO4)3 material synthesized by the method has good crystallization, and the lithium ion battery has excellent cycle performance and high reversible capacity after being prepared on the lithium ion battery.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
Fig. 1 is an X-ray diffraction pattern of the negative electrode material of the lithium ion battery of example 1.
Fig. 2 is a schematic charge-discharge curve of the product lithium ion battery anode material prepared in example 1, wherein the charge-discharge rate is 100mA/g, and the charge-discharge voltage is 0.01-3.0 v.
Fig. 3 is a schematic charge-discharge long-cycle diagram of a lithium ion battery assembled by the product lithium ion battery anode material prepared in example 1, wherein the charge-discharge current density is 100mA/g, and the charge-discharge voltage is 0.01-3.0 v.
Fig. 4 is an X-ray diffraction pattern of the negative electrode material of the lithium ion battery of example 2.
Fig. 5 is a scanning electron microscope photograph of the negative electrode material of the lithium ion battery of example 2.
Fig. 6 is a schematic diagram of a long cycle of charge and discharge of a lithium ion battery assembled by the product lithium ion battery anode material prepared in example 2, wherein the charge and discharge current density is 1A/g, and the charge and discharge voltage is 0.01-3.0 v.
Fig. 7 is a schematic diagram of the rate performance of a lithium ion battery assembled by the product lithium ion battery anode material prepared in example 2, wherein the charge and discharge rates are 0.1, 0.2, 0.5, 1, 2 and 0.1A/g, and the charge and discharge voltage is 0.01-3.0 v.
Fig. 8 is an X-ray diffraction pattern of the negative electrode material of the lithium ion battery of example 3.
Fig. 9 is a schematic diagram of a charge-discharge curve of a lithium ion battery assembled by the product lithium ion battery anode material prepared in example 3, wherein the charge-discharge current density is 200mA/g, and the charge-discharge voltage is 0.01-3.0 v.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the examples LiCH 3 COO is lithium acetate;
in the examples (CH 3CH(O-)CO2NH4)2Ti(OH)2 is titanium diammonium di (2-hydroxypropionate) hydroxide;
In an embodiment (NH 4)2MoO4 is ammonium molybdate).
Example 1
The following raw materials were weighed into 60mL deionized water:
2.1mmol LiCH3COO;
1.5mmol (CH3CH(O-)CO2NH4)2Ti(OH)2;
6mmol (NH4)2MoO4;
15mmol citric acid monohydrate;
magnetically stirring at a constant temperature of 80 ℃, and drying for 12 hours to obtain wet gel;
Drying the wet gel in a baking oven at 150 ℃ for 12 hours to obtain xerogel, and grinding to obtain powder;
presintering the product in air atmosphere at 300 ℃ for 4 hours, naturally cooling, grinding uniformly to obtain a powdery material, grinding uniformly again, and burning in air atmosphere at 500 ℃ for 12 hours to obtain Li 3Ti0.75(MoO4)3.
Li 3Ti0.75(MoO4)3 is taken to prepare a lithium ion battery, and a button cell battery mold is CR2032.
Uniformly mixing Li 3Ti0.75(MoO4)3 lithium ion battery anode material, acetylene black and polyvinylidene fluoride in an N-methyl pyrrolidone solution according to a mass ratio of 7:2:1, coating the mixture on a copper foil, fully drying the copper foil, and cutting the copper foil into battery pole pieces serving as an anode. The lithium metal sheet is used as a counter electrode, and the electrolyte is 1mol/L of LiClO 4 ethylene carbonate/diethyl carbonate (EC/DME, volume ratio is 1:1) solution. And packaging the battery pole piece and other materials into a button type lithium ion battery in a glove box filled with high-purity argon.
The XRD pattern of the product obtained in this example is shown in FIG. 1, and it can be seen from the figure that pure-phase orthorhombic Li 3Ti0.75(MoO4)3 material is synthesized by the preparation method, no impurity peak exists in the spectrogram, and the purity of the product is high.
The first three circles of charge-discharge curves of the Li 3Ti0.75(MoO4)3 anode material are shown in fig. 2, the charge-discharge multiplying power is 100mA/g, and the charge-discharge voltage is 0.01-3.0V.
The charge-discharge long-cycle schematic diagram of the lithium ion battery assembled by the Li 3Ti0.75(MoO4)3 anode material is shown in figure 3, and as known from figure 3, when the charge-discharge voltage is 0.01-3.0V and the charge-discharge multiplying power is 100mA/g, the first discharge specific capacity of the battery reaches 1375mAh/g, and after 100 weeks of cycle, the capacity still has 954mAh/g, and the battery has better cycle performance.
Example 2
The following raw materials were weighed into 60mL deionized water:
2.1mmol LiCH3COO;
1.5mmol (CH3CH(O-)CO2NH4)2Ti(OH)2;
6mmol (NH4)2MoO4;
15mmol citric acid monohydrate;
magnetically stirring at a constant temperature of 80 ℃, and drying for 12 hours to obtain wet gel;
The wet gel was dried in an oven at 150 ℃ for 12 hours to give a xerogel, which was ground to give a powder.
Presintering the product in air at 350 ℃ for 4 hours, naturally cooling, grinding uniformly to obtain a powdery material, grinding uniformly again, and burning in air at 550 ℃ for 12 hours to obtain Li 3Ti0.75(MoO4)3.
Li 3Ti0.75(MoO4)3 is taken to prepare a lithium ion battery, and a button cell battery mold is CR2032.
Uniformly mixing Li 3Ti0.75(MoO4)3 lithium ion battery anode material, acetylene black and polyvinylidene fluoride in an N-methyl pyrrolidone solution according to a mass ratio of 7:2:1, coating the mixture on a copper foil, fully drying the copper foil, and cutting the copper foil into battery pole pieces serving as an anode. The lithium metal sheet is used as a counter electrode, and the electrolyte is 1mol/L of LiClO 4 ethylene carbonate/diethyl carbonate (EC/DME, volume ratio is 1:1) solution. And packaging the battery pole piece and other materials into a button type lithium ion battery in a glove box filled with high-purity argon.
The XRD pattern of the sample is shown in figure 4, and the sample is free of impurities and is a pure-phase Li 3Ti0.75(MoO4)3 material.
Fig. 5 is an SEM (scanning electron microscope) image of the negative electrode material of the lithium ion battery of example 2.
FIG. 6 is a schematic view showing the cycle performance at a charge-discharge voltage of 0.01 to 3.0V and a charge-discharge rate of 1A/g, and after 350 weeks of cycle, the capacity was maintained at 640mAh/g, and the cycle performance was excellent.
Fig. 7 is a graph showing the rate capability of the Li 3Ti0.75(MoO4)3 anode material at 0.1, 0.2, 0.5, 1, 2, and 0.1A/g current over a voltage window of 0.01-3.0V, from which it can be seen that the Li 3Ti0.75(MoO4)3 anode material is excellent in rate capability, still having a specific capacity of about 500mAh/g at a current density of 2A/g.
Example 3
The following raw materials were weighed into 60mL deionized water:
2.1mmol LiCH3COO;
1.5mmol (CH3CH(O-)CO2NH4)2Ti(OH)2;
6mmol (NH4)2MoO4;
15mmol citric acid monohydrate;
magnetically stirring at a constant temperature of 80 ℃, and drying for 12 hours to obtain wet gel;
The wet gel was dried in an oven at 150 ℃ for 12 hours to give a xerogel, which was ground to give a powder.
Presintering the product in air at 400 ℃ for 4 hours, naturally cooling, grinding uniformly to obtain a powdery material, grinding uniformly again, and burning in air at 600 ℃ for 12 hours to obtain Li 3Ti0.75(MoO4)3.
Li 3Ti0.75(MoO4)3 is taken to prepare a lithium ion battery, and a button cell battery mold is CR2032.
Uniformly mixing Li 3Ti0.75(MoO4)3 lithium ion battery anode material, acetylene black and polyvinylidene fluoride in an N-methyl pyrrolidone solution according to a mass ratio of 7:2:1, coating the mixture on a copper foil, fully drying the copper foil, and cutting the copper foil into battery pole pieces serving as an anode. The lithium metal sheet is used as a counter electrode, and the electrolyte is 1mol/L of LiClO 4 ethylene carbonate/diethyl carbonate (EC/DME, volume ratio is 1:1) solution. And packaging the battery pole piece and other materials into a button type lithium ion battery in a glove box filled with high-purity argon.
The XRD pattern of the sample is shown in figure 8, and the sample is free of impurities and is a pure-phase Li 3Ti0.75(MoO4)3 material. The initial charge and discharge curves of the Li 3Ti0.75(MoO4)3 anode material under the 200mA/g multiplying power and the charge and discharge voltage of 0.01-3.0V are shown in figure 9, and the initial charge and discharge capacities are 1272mAh/g and 911mAh/g respectively.
Example 4
The following raw materials were weighed into 60mL deionized water:
1.05mmol LiCH3COO;
0.75mmol (CH3CH(O-)CO2NH4)2Ti(OH)2;
3mmol (NH4)2MoO4;
9.6mmol citric acid monohydrate;
magnetically stirring at a constant temperature of 80 ℃, and drying for 12 hours to obtain wet gel;
Drying the wet gel in a baking oven at 150 ℃ for 12 hours to obtain xerogel, and grinding to obtain powder;
presintering the product in air atmosphere at 300 ℃ for 4 hours, naturally cooling, grinding uniformly to obtain a powdery material, grinding uniformly again, and burning in air atmosphere at 500 ℃ for 12 hours to obtain Li 3Ti0.75(MoO4)3.
Li 3Ti0.75(MoO4)3 is taken to prepare a lithium ion battery, and a button cell battery mold is CR2032.
Uniformly mixing Li 3Ti0.75(MoO4)3 lithium ion battery anode material, acetylene black and polyvinylidene fluoride in an N-methyl pyrrolidone solution according to a mass ratio of 7:2:1, coating the mixture on a copper foil, fully drying the copper foil, and cutting the copper foil into battery pole pieces serving as an anode. The lithium metal sheet is used as a counter electrode, and the electrolyte is 1mol/L of LiClO 4 ethylene carbonate/diethyl carbonate (EC/DME, volume ratio is 1:1) solution. And packaging the battery pole piece and other materials into a button type lithium ion battery in a glove box filled with high-purity argon.
Example 5
The following raw materials were weighed into 60mL deionized water:
3.15mmol LiCH3COO;
2.25mmol (CH3CH(O-)CO2NH4)2Ti(OH)2;
9mmol (NH4)2MoO4;
28.8mmol citric acid monohydrate;
magnetically stirring at a constant temperature of 80 ℃, and drying for 12 hours to obtain wet gel;
Drying the wet gel in a baking oven at 150 ℃ for 12 hours to obtain xerogel, and grinding to obtain powder;
presintering the product in air atmosphere at 300 ℃ for 4 hours, naturally cooling, grinding uniformly to obtain a powdery material, grinding uniformly again, and burning in air atmosphere at 500 ℃ for 12 hours to obtain Li 3Ti0.75(MoO4)3.
Li 3Ti0.75(MoO4)3 is taken to prepare a lithium ion battery, and a button cell battery mold is CR2032.
Uniformly mixing Li 3Ti0.75(MoO4)3 lithium ion battery anode material, acetylene black and polyvinylidene fluoride in an N-methyl pyrrolidone solution according to a mass ratio of 7:2:1, coating the mixture on a copper foil, fully drying the copper foil, and cutting the copper foil into battery pole pieces serving as an anode. The lithium metal sheet is used as a counter electrode, and the electrolyte is 1mol/L of LiClO 4 ethylene carbonate/diethyl carbonate (EC/DME, volume ratio is 1:1) solution. And packaging the battery pole piece and other materials into a button type lithium ion battery in a glove box filled with high-purity argon.
Example 6
The following raw materials were weighed into 60mL deionized water:
2.1mmol lithium carbonate (Li 2CO3);
1.5mmol (CH3CH(O-)CO2NH4)2Ti(OH)2;
6mmol (NH4)2MoO4;
15mmol citric acid monohydrate;
magnetically stirring at a constant temperature of 80 ℃, and drying for 12 hours to obtain wet gel;
Drying the wet gel in a baking oven at 150 ℃ for 12 hours to obtain xerogel, and grinding to obtain powder;
presintering the product in air atmosphere at 300 ℃ for 4 hours, naturally cooling, grinding uniformly to obtain a powdery material, grinding uniformly again, and burning in air atmosphere at 500 ℃ for 12 hours to obtain Li 3Ti0.75(MoO4)3.
Li 3Ti0.75(MoO4)3 is taken to prepare a lithium ion battery, and a button cell battery mold is CR2032.
Uniformly mixing Li 3Ti0.75(MoO4)3 lithium ion battery anode material, acetylene black and polyvinylidene fluoride in an N-methyl pyrrolidone solution according to a mass ratio of 7:2:1, coating the mixture on a copper foil, fully drying the copper foil, and cutting the copper foil into battery pole pieces serving as an anode. The lithium metal sheet is used as a counter electrode, and the electrolyte is 1mol/L of LiClO 4 ethylene carbonate/diethyl carbonate (EC/DME, volume ratio is 1:1) solution. And packaging the battery pole piece and other materials into a button type lithium ion battery in a glove box filled with high-purity argon.
Example 7
The following raw materials were weighed into 60mL deionized water:
2.1mmol LiCH3COO;
1.5mmol of tetrabutyl titanate (C 16H36O4 Ti);
6mmol (NH4)2MoO4;
15mmol citric acid monohydrate;
magnetically stirring at a constant temperature of 80 ℃, and drying for 12 hours to obtain wet gel;
Drying the wet gel in a baking oven at 150 ℃ for 12 hours to obtain xerogel, and grinding to obtain powder;
presintering the product in air atmosphere at 300 ℃ for 4 hours, naturally cooling, grinding uniformly to obtain a powdery material, grinding uniformly again, and burning in air atmosphere at 500 ℃ for 12 hours to obtain Li 3Ti0.75(MoO4)3.
Li 3Ti0.75(MoO4)3 is taken to prepare a lithium ion battery, and a button cell battery mold is CR2032.
Uniformly mixing Li 3Ti0.75(MoO4)3 lithium ion battery anode material, acetylene black and polyvinylidene fluoride in an N-methyl pyrrolidone solution according to a mass ratio of 7:2:1, coating the mixture on a copper foil, fully drying the copper foil, and cutting the copper foil into battery pole pieces serving as an anode. The lithium metal sheet is used as a counter electrode, and the electrolyte is 1mol/L of LiClO 4 ethylene carbonate/diethyl carbonate (EC/DME, volume ratio is 1:1) solution. And packaging the battery pole piece and other materials into a button type lithium ion battery in a glove box filled with high-purity argon.
Example 8
The following raw materials were weighed into 60mL deionized water:
2.1mmol LiCH3COO;
1.5mmol (CH3CH(O-)CO2NH4)2Ti(OH)2;
6mmol of molybdenum trioxide (MoO 3);
15mmol citric acid monohydrate;
magnetically stirring at a constant temperature of 80 ℃, and drying for 12 hours to obtain wet gel;
Drying the wet gel in a baking oven at 150 ℃ for 12 hours to obtain xerogel, and grinding to obtain powder;
presintering the product in air atmosphere at 300 ℃ for 4 hours, naturally cooling, grinding uniformly to obtain a powdery material, grinding uniformly again, and burning in air atmosphere at 500 ℃ for 12 hours to obtain Li 3Ti0.75(MoO4)3.
Li 3Ti0.75(MoO4)3 is taken to prepare a lithium ion battery, and a button cell battery mold is CR2032.
Uniformly mixing Li 3Ti0.75(MoO4)3 lithium ion battery anode material, acetylene black and polyvinylidene fluoride in an N-methyl pyrrolidone solution according to a mass ratio of 7:2:1, coating the mixture on a copper foil, fully drying the copper foil, and cutting the copper foil into battery pole pieces serving as an anode. The lithium metal sheet is used as a counter electrode, and the electrolyte is 1mol/L of LiClO 4 ethylene carbonate/diethyl carbonate (EC/DME, volume ratio is 1:1) solution. And packaging the battery pole piece and other materials into a button type lithium ion battery in a glove box filled with high-purity argon.
Comparative example
The following raw materials were weighed into 60mL deionized water:
2.1mmol LiCH3COO;
1.5mmol (CH3CH(O-)CO2NH4)2Ti(OH)2;
6mmol (NH4)2MoO4;
15mmol citric acid monohydrate;
Obtaining a mixed solution;
Presintering the mixed solution for 4 hours at 300 ℃ in air atmosphere, naturally cooling, grinding uniformly to obtain a powdery material, grinding uniformly again, and burning for 12 hours at 500 ℃ in air atmosphere to obtain the negative electrode material.
And taking the negative electrode material to prepare a lithium ion battery, wherein the button battery die is CR2032.
Uniformly mixing a negative electrode material, acetylene black and polyvinylidene fluoride in an N-methyl pyrrolidone solution according to a mass ratio of 7:2:1, coating the mixture on a copper foil, fully drying the copper foil, and cutting the copper foil into a battery pole piece serving as a negative electrode. The lithium metal sheet is used as a counter electrode, and the electrolyte is 1mol/L of LiClO 4 ethylene carbonate/diethyl carbonate (EC/DME, volume ratio is 1:1) solution. And packaging the battery pole piece and other materials into a button type lithium ion battery in a glove box filled with high-purity argon.
The foregoing is merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention or direct or indirect application in the relevant art are intended to be included in the scope of the present invention.
Claims (7)
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| KR20150089389A (en) * | 2014-01-27 | 2015-08-05 | 삼성에스디아이 주식회사 | Positive active material, lithium battery containing the positive material, and method for manufacturing the positive active material |
| CN103985865B (en) * | 2014-05-16 | 2016-08-24 | 吉林大学 | A kind of molybdate polyanionic lithium cell cathode material and preparation method thereof |
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| Title |
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| "Lithiated bimetallic oxide, Li3Fe(MoO4)3, as a high-performance anode material for lithium-ion batteries and its multielectron reaction mechanism";Siyuan Chen et al.;《Journal of Power Sources》;20201115;第476卷;第1-10页 * |
| "Synthesis and Electrochemical Analysis of Li3Ti0.75(MoO4)3 Phase with Lyonsite Structure";D. Saritha;《Russian Journal of Electrochemistry》;20200915;第56卷;第626-629页 * |
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