CN105514430A - Spherical LiFexMnyPO4 anode material and preparation method thereof - Google Patents
Spherical LiFexMnyPO4 anode material and preparation method thereof Download PDFInfo
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- CN105514430A CN105514430A CN201511015673.5A CN201511015673A CN105514430A CN 105514430 A CN105514430 A CN 105514430A CN 201511015673 A CN201511015673 A CN 201511015673A CN 105514430 A CN105514430 A CN 105514430A
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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
- H01M4/58—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
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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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 discloses a spherical LiFexMnyPO4 anode material. A formula of the LiFexMnyPO4 anode material is LiFexMnyPO4, wherein x+y=1. A preparation method of the LiFexMnyPO4 anode material comprises the following preparation steps: (1) weighing an Li source, an Fe source, an Mn source and a P source, and adding into deionized water, wherein a mole ratio of the Li source, the Fe source, the Mn source and the P source is (1.0 to 1.2):x:y:(1.0 to 1.5), and x+y=1; (2) adding a carbon source compound in a solution I, and uniformly stirring to form a solution II; (3) adding a surfactant in the solution II, and stirring to obtain a solution III; (4) adding EDTA (Ethylene Diamine Tetraacetic Acid) in the solution III, and stirring to obtain a solution IV; (5) putting the solution IV in a high-pressure reaction kettle, and carrying out a hydrothermal reaction under 180 DEG C to obtain a solution V; (6) obtaining an LiFexMnyPO4 precursor after cooling the solution V; (7) putting LiFexMnyPO4 precursor powder in a tubular calcining furnace, and obtaining a carbon-coated spherical LiFexMnyPO4 anode material through grinding after cooling.
Description
Technical field
The present invention relates to a kind of anode material for lithium-ion batteries and preparation method thereof, particularly relate to a kind of ball shape ferric phosphate manganese lithium anode material and preparation method thereof.
Background technology
Along with people are for the reinforcement of environmental protection consciousness; the environmental pollution that vehicle exhaust brings and global warming phenomenon have caused to be paid close attention to widely; day by day reduce to effect a radical cure vehicle exhaust environmental pollution and global warming phenomenon and alleviating petroleum resources the energy crisis brought, the research of the electric automobile of energy-conserving and environment-protective, exploitation and industrialization become the problem paid close attention in the whole world.But the maximum bottleneck of restriction Development of Electric Vehicles is exactly fail safe and the life-span of electrokinetic cell.Lithium ion battery is with its high-energy, high power, long-life, fail safe is good, self discharge is little, the advantage such as environmentally friendly to be known as electric motor car by people electrical source of power.
Anode material for lithium-ion batteries is the important component part of battery, and the focus of research at present mainly concentrates on the fields such as cobalt acid lithium, lithium nickelate, LiMn2O4, LiFePO4 and nickle cobalt lithium manganate.But the expensive and toxicity of cobalt acid lithium is comparatively large, LiMn2O4 thermal stability is poor, and LiFePO4 high rate performance is poor, and the fail safe of nickle cobalt lithium manganate is poor, limits the application of these materials in lithium ion battery.Transition metal phosphate compound (LiFePO
4, LiMnPO
4) there is the advantages such as cheap, good stability, toxicity are low, environmentally friendly, the important substitution material of positive electrode on market after being considered to.Due to LiFePO
4energy density low, LiMnPO
4chemical property poor, for LiFe
xmn
ypO
4research just arise at the historic moment.With LiFePO
4compare, due to the introducing of Mn, LiFe
xmn
ypO
4the charge and discharge potential part of positive electrode rises to 4.1V, improves its energy density, the corresponding energy density improving battery; With LiMnPO
4compare, LiFe
xmn
ypO
4positive electrode shows excellent chemical property.
Summary of the invention
The object of this invention is to provide a kind of ball shape ferric phosphate manganese lithium anode material of energy density height and chemical property difference;
It is simple that another object of the present invention is to provide synthetic method, and productive rate is high, even particle size distribution, the preparation method of a kind of ball shape ferric phosphate manganese lithium anode material of excellent electrochemical performance.
For achieving the above object, the technical solution used in the present invention is: a kind of ball shape ferric phosphate manganese lithium anode material, is characterized in that: the chemical formula of described lithium ferric manganese phosphate positive electrode is LiFe
xmn
ypO
4, x+y=1.
A preparation method for ball shape ferric phosphate manganese lithium anode material, is characterized in that: preparation process comprises the following steps:
1) take lithium source, source of iron, manganese source, phosphorus source add in deionization, ultrasonic disperse, obtains solution I, and wherein the mol ratio in lithium source, source of iron, manganese source, phosphorus source is 1.0 ~ 1.2:x:y:1.0 ~ 1.5, x+y=1;
2) carbon-source cpd of 5wt% ~ 15wt% is joined in solution I, stir and form solution II;
3) in solution II, add Surfactant CTAB, stir 0.5h and obtain solution III, wherein the mol ratio in CTAB and lithium source is 0.05 ~ 0.2:1;
4) joined by EDTA in solution III, stir 0.5h and obtain solution IV, wherein the mol ratio in EDTA and lithium source is 0.2 ~ 1:1;
5) solution IV is proceeded in autoclave, carry out hydro-thermal reaction 6 ~ 10h at 180 DEG C and obtain solution V;
6) after filtration, washing, dry process, lithium ferric manganese phosphate presoma is obtained after solution V cooling;
7) put in tube calciner by lithium ferric manganese phosphate precursor powder, in atmosphere of inert gases, calcine 8 ~ 12h at 500 ~ 800 DEG C, after cooling, grinding obtains the coated ball shape ferric phosphate manganese lithium anode material of carbon.
In the method, described lithium source is one or more in lithium hydroxide, lithium acetate, lithium carbonate.
In the method, described source of iron be ferrous sulfate, ferrous oxalate, iron chloride, ferric nitrate one or more.
In the method, described manganese source is manganese sulfate, one or more in manganese carbonate, manganese acetate.
In the method, described phosphorus source is one or more in phosphoric acid, ammonium dihydrogen phosphate, diammonium hydrogen phosphate.
In the method, described carbon source is one or more in glucose, starch, sucrose, ascorbic acid.
In the method, described CTAB is template softex kw.
In the method, described EDTA is complexing agent ethylenediamine tetra-acetic acid.
In the method, described inert gas be nitrogen, argon gas, helium one or more.
Advantageous effect of the present invention is: utilize hydro thermal method to add the obtained lithium ferric manganese phosphate globulate of template, even particle size distribution; Complexing agent EDTA adds, and better complex reaction can occur with lithium ion, manganese ion, iron ion and phosphate radical particle, is convenient to form uniform and stable lithium ferric manganese phosphate presoma; Lithium iron manganese phosphate anode material prepared by the present invention has higher energy density and good chemical property, and preparation method of the present invention is simple simultaneously, and process is easy to control, and is convenient to realize industrialization large-scale production.
Accompanying drawing explanation
Fig. 1 is LiFe prepared by the embodiment of the present invention 1
0.5mn
0.5pO
4scanning electron microscope (SEM) photograph;
Fig. 2 is LiFe prepared by the embodiment of the present invention 1
0.5mn
0.5pO
40.2C charge-discharge performance curve.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
As shown in Figure 1, 2, a kind of ball shape ferric phosphate manganese lithium anode material, is characterized in that in the present invention: the chemical formula of described lithium ferric manganese phosphate positive electrode is LiFe
xmn
ypO
4, x+y=1.
A preparation method for ball shape ferric phosphate manganese lithium anode material, is characterized in that: preparation process comprises the following steps:
1) take lithium source, source of iron, manganese source, phosphorus source add in deionization, ultrasonic disperse, obtains solution I, and wherein the mol ratio in lithium source, source of iron, manganese source, phosphorus source is 1.0 ~ 1.2:x:y:1.0 ~ 1.5, x+y=1;
2) carbon-source cpd of 5wt% ~ 15wt% is joined in solution I, stir and form solution II;
3) in solution II, add Surfactant CTAB, stir 0.5h and obtain solution III, wherein the mol ratio in CTAB and lithium source is 0.05 ~ 0.2:1;
4) joined by EDTA in solution III, stir 0.5h and obtain solution IV, wherein the mol ratio in EDTA and lithium source is 0.2 ~ 1:1;
5) solution IV is proceeded in autoclave, carry out hydro-thermal reaction 6 ~ 10h at 180 DEG C and obtain solution V;
6) after filtration, washing, dry process, lithium ferric manganese phosphate presoma is obtained after solution V cooling;
7) put in tube calciner by lithium ferric manganese phosphate precursor powder, in atmosphere of inert gases, calcine 8 ~ 12h at 500 ~ 800 DEG C, after cooling, grinding obtains the coated ball shape ferric phosphate manganese lithium anode material of carbon.
In the present embodiment, described lithium source is one or more in lithium hydroxide, lithium acetate, lithium carbonate.In the present embodiment, described source of iron be ferrous sulfate, ferrous oxalate, iron chloride, ferric nitrate one or more.In the present embodiment, described manganese source is manganese sulfate, one or more in manganese carbonate, manganese acetate.In the present embodiment, described phosphorus source is one or more in phosphoric acid, ammonium dihydrogen phosphate, diammonium hydrogen phosphate.
In the present embodiment, described carbon source is one or more in glucose, starch, sucrose, ascorbic acid.In the present embodiment, described CTAB is template softex kw.In the present embodiment, described EDTA is complexing agent ethylenediamine tetra-acetic acid.In the present embodiment, described inert gas be nitrogen, argon gas, helium one or more.
embodiment 1
First take lithium hydroxide that mol ratio is 1.0 ~ 1.2:0.5:0.5:1.0 ~ 1.5, ferrous sulfate, manganese acetate, phosphoric acid adds in deionization, ultrasonic disperse, then adding by slaine mass fraction is the glucose of 10wt%, a period of time is stirred to dissolving completely after ultrasonic disperse, add the Surfactant CTAB of a certain amount of (n (CTAB): n (LiOH)=0.05:1) subsequently, stir 0.5h to CTAB to dissolve completely, again add the EDTA of a certain amount of (n (EDTA): n (LiOH)=0.2:1), stir the solution that 0.5h obtains stable and uniform.Solution is proceeded in autoclave, at 180 DEG C, carry out hydro-thermal reaction 6h, after solution cools, after filtration, washing, dry process, obtain lithium ferric manganese phosphate presoma.Put in tube calciner by lithium ferric manganese phosphate precursor powder, in nitrogen atmosphere, calcine 8h at 800 DEG C, after cooling, grinding obtains the coated ball shape ferric phosphate manganese lithium anode material of carbon.
The lithium ferric manganese phosphate positive electrode prepared for the present invention, its pattern is determined by scanning electron microscopy.As shown in Figure 1, lithium ferric manganese phosphate has homogeneous pattern, presents spherical, and its diameter is about 100-200nm.With the lithium ferric manganese phosphate of preparation for anode material for lithium-ion batteries, electrically conductive graphite and conductive carbon black are conductive agent, and Kynoar is binding agent, makes cell piece, take lithium metal as negative pole, make button cell, carry out lithium ion battery 0.2C charge-discharge test.As shown in Figure 2, the first discharge specific capacity of this material is up to 126.8mAh/g, and after the charge and discharge cycles test of 100 weeks, the specific capacity conservation rate of battery, up to 97.2%, shows good chemical property.
embodiment 2
First take lithium hydroxide that mol ratio is 1.0 ~ 1.2:0.6:0.4:1.0 ~ 1.5, ferrous sulfate, manganese acetate, phosphoric acid adds in deionization, ultrasonic disperse, then adding by slaine mass fraction is the glucose of 10wt%, a period of time is stirred to dissolving completely after ultrasonic disperse, add the Surfactant CTAB of a certain amount of (n (CTAB): n (LiOH)=0.1:1) subsequently, stir 0.5h to CTAB to dissolve completely, again add the EDTA of a certain amount of (n (EDTA): n (LiOH)=0.5:1), stir the solution that 0.5h obtains stable and uniform.Solution is proceeded in autoclave, at 180 DEG C, carry out hydro-thermal reaction 8h, after solution cools, after filtration, washing, dry process, obtain lithium ferric manganese phosphate presoma.Put in tube calciner by lithium ferric manganese phosphate precursor powder, in nitrogen atmosphere, calcine 10h at 600 DEG C, after cooling, grinding obtains the coated ball shape ferric phosphate manganese lithium anode material of carbon.
embodiment 3
First take lithium carbonate that mol ratio is 1.0 ~ 1.2:0.5:0.5:1.0 ~ 1.5, ferrous sulfate, manganese carbonate, phosphoric acid adds in deionization, ultrasonic disperse, then adding by slaine mass fraction is the starch of 15wt%, stirring a period of time after ultrasonic disperse to dissolving completely, adding a certain amount of (n (CTAB): n (Li subsequently
2cO
3)=0.15:1) Surfactant CTAB, stir 0.5h to CTAB dissolve completely, again add a certain amount of (n (EDTA): n (Li
2cO
3)=0.8:1) EDTA, stir 0.5h and obtain the solution of stable and uniform.Solution is proceeded in autoclave, at 180 DEG C, carry out hydro-thermal reaction 10h, after solution cools, after filtration, washing, dry process, obtain lithium ferric manganese phosphate presoma.Put in tube calciner by lithium ferric manganese phosphate precursor powder, in nitrogen atmosphere, calcine 8h at 800 DEG C, after cooling, grinding obtains the coated ball shape ferric phosphate manganese lithium anode material of carbon.
embodiment 4
First take lithium hydroxide that mol ratio is 1.0 ~ 1.2:0.8:0.2:1.0 ~ 1.5, ferrous sulfate, manganese acetate, phosphoric acid adds in deionization, ultrasonic disperse, then adding by slaine mass fraction is the glucose of 8wt%, a period of time is stirred to dissolving completely after ultrasonic disperse, add the Surfactant CTAB of a certain amount of (n (CTAB): n (LiOH)=0.2:1) subsequently, stir 0.5h to CTAB to dissolve completely, again add the EDTA of a certain amount of (n (EDTA): n (LiOH)=1:1), stir the solution that 0.5h obtains stable and uniform.Solution is proceeded in autoclave, at 180 DEG C, carry out hydro-thermal reaction 10h, after solution cools, after filtration, washing, dry process, obtain lithium ferric manganese phosphate presoma.Put in tube calciner by lithium ferric manganese phosphate precursor powder, in nitrogen atmosphere, calcine 10h at 750 DEG C, after cooling, grinding obtains the coated ball shape ferric phosphate manganese lithium anode material of carbon.
Embodiment recited above is only be described the preferred embodiment of the present invention; not design of the present invention and protection range are limited; under the prerequisite not departing from design concept of the present invention; the various modification that in this area, common engineers and technicians make technical scheme of the present invention and improvement, all should fall into protection scope of the present invention.
Claims (10)
1. a ball shape ferric phosphate manganese lithium anode material, is characterized in that: the chemical formula of described lithium ferric manganese phosphate positive electrode is LiFe
xmn
ypO
4, x+y=1.
2. a preparation method for ball shape ferric phosphate manganese lithium anode material, is characterized in that: preparation process comprises the following steps:
1) take lithium source, source of iron, manganese source, phosphorus source add in deionization, ultrasonic disperse, obtains solution I, and wherein the mol ratio in lithium source, source of iron, manganese source, phosphorus source is 1.0 ~ 1.2:x:y:1.0 ~ 1.5, x+y=1;
2) carbon-source cpd of 5wt% ~ 15wt% is joined in solution I, stir and form solution II;
3) in solution II, add Surfactant CTAB, stir 0.5h and obtain solution III, wherein the mol ratio in CTAB and lithium source is 0.05 ~ 0.2:1;
4) joined by EDTA in solution III, stir 0.5h and obtain solution IV, wherein the mol ratio in EDTA and lithium source is 0.2 ~ 1:1;
5) solution IV is proceeded in autoclave, carry out hydro-thermal reaction 6 ~ 10h at 180 DEG C and obtain solution V;
6) after filtration, washing, dry process, lithium ferric manganese phosphate presoma is obtained after solution V cooling;
7) put in tube calciner by lithium ferric manganese phosphate precursor powder, in atmosphere of inert gases, calcine 8 ~ 12h at 500 ~ 800 DEG C, after cooling, grinding obtains the coated ball shape ferric phosphate manganese lithium anode material of carbon.
3. according to the preparation method of a kind of ball shape ferric phosphate manganese lithium anode material described in claims 2, it is characterized in that: described lithium source is one or more in lithium hydroxide, lithium acetate, lithium carbonate.
4. the preparation method of a kind of ball shape ferric phosphate manganese lithium anode material according to claims 3, is characterized in that: described source of iron be ferrous sulfate, ferrous oxalate, iron chloride, ferric nitrate one or more.
5. the preparation method of a kind of ball shape ferric phosphate manganese lithium anode material according to claims 4, is characterized in that: described manganese source is manganese sulfate, one or more in manganese carbonate, manganese acetate.
6. the preparation method of a kind of ball shape ferric phosphate manganese lithium anode material according to claims 5, is characterized in that: described phosphorus source is one or more in phosphoric acid, ammonium dihydrogen phosphate, diammonium hydrogen phosphate.
7. the preparation method of a kind of ball shape ferric phosphate manganese lithium anode material according to claims 6, is characterized in that: described carbon source is one or more in glucose, starch, sucrose, ascorbic acid.
8. the preparation method of a kind of ball shape ferric phosphate manganese lithium anode material according to claims 7, is characterized in that: described CTAB is template softex kw.
9. the preparation method of a kind of ball shape ferric phosphate manganese lithium anode material according to claims 8, is characterized in that: described EDTA is complexing agent ethylenediamine tetra-acetic acid.
10. the preparation method of a kind of ball shape ferric phosphate manganese lithium anode material according to claims 9, is characterized in that: described inert gas be nitrogen, argon gas, helium one or more.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450302A (en) * | 2016-11-04 | 2017-02-22 | 成都新柯力化工科技有限公司 | Lithium ferric manganese phosphate-tungsten disulfide nanometer lithium cell positive material and preparation method thereof |
| CN106904588A (en) * | 2017-03-22 | 2017-06-30 | 江苏元景锂粉工业有限公司 | A kind of lithium ion battery with high energy density positive electrode and preparation method thereof |
| CN106981642A (en) * | 2017-05-22 | 2017-07-25 | 中南大学 | A kind of spherical vanadium phosphate manganese sodium composite of nitrating carbon coating and preparation method thereof and the application in sodium-ion battery |
| CN107069005A (en) * | 2017-04-19 | 2017-08-18 | 龙能科技如皋市有限公司 | A kind of preparation method of double-carbon-source coated LiFePO 4 material |
| CN107394203A (en) * | 2017-07-13 | 2017-11-24 | 扬州大学 | A kind of preparation method of two-dimensional ultrathin sheet manganese phosphate |
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| CN107834025A (en) * | 2017-07-08 | 2018-03-23 | 郑春燕 | A kind of compound lithium ion electrode material |
| CN107827092A (en) * | 2017-07-08 | 2018-03-23 | 郑春燕 | A kind of electrode material |
| CN107834066A (en) * | 2017-07-09 | 2018-03-23 | 郑春燕 | A kind of high conductivity combination electrode material and technique for adulterating manganese |
| CN110767890A (en) * | 2019-11-22 | 2020-02-07 | 广西大学 | Preparation method of multi-element doped carbon-coated lithium ion battery anode material |
| CN111816851A (en) * | 2020-06-22 | 2020-10-23 | 南昌大学 | Hierarchical porous LiMnxFe1-xPO4Template-free hydrothermal preparation method of/C composite microsphere cathode material |
| CN112018364A (en) * | 2020-09-05 | 2020-12-01 | 河南科技学院 | Equimolar hydrothermal method for preparing LiMnPO4Method for preparing composite material and application of composite material in lithium battery |
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| CN106450302A (en) * | 2016-11-04 | 2017-02-22 | 成都新柯力化工科技有限公司 | Lithium ferric manganese phosphate-tungsten disulfide nanometer lithium cell positive material and preparation method thereof |
| CN106450302B (en) * | 2016-11-04 | 2019-11-08 | 成都新柯力化工科技有限公司 | A kind of lithium ferric manganese phosphate-tungsten disulfide nano slices anode material of lithium battery and preparation method |
| CN106904588A (en) * | 2017-03-22 | 2017-06-30 | 江苏元景锂粉工业有限公司 | A kind of lithium ion battery with high energy density positive electrode and preparation method thereof |
| CN106904588B (en) * | 2017-03-22 | 2019-05-24 | 江苏元景锂粉工业有限公司 | A kind of lithium ion battery with high energy density positive electrode and preparation method thereof |
| CN107069005A (en) * | 2017-04-19 | 2017-08-18 | 龙能科技如皋市有限公司 | A kind of preparation method of double-carbon-source coated LiFePO 4 material |
| CN106981642B (en) * | 2017-05-22 | 2020-10-16 | 中南大学 | Nitrogen-doped carbon-coated spherical vanadium manganese sodium phosphate composite material, preparation method thereof and application thereof in sodium ion battery |
| CN106981642A (en) * | 2017-05-22 | 2017-07-25 | 中南大学 | A kind of spherical vanadium phosphate manganese sodium composite of nitrating carbon coating and preparation method thereof and the application in sodium-ion battery |
| CN107834059A (en) * | 2017-07-08 | 2018-03-23 | 郑春燕 | A kind of preparation technology of novel composite electrode material |
| CN107834025A (en) * | 2017-07-08 | 2018-03-23 | 郑春燕 | A kind of compound lithium ion electrode material |
| CN107827092A (en) * | 2017-07-08 | 2018-03-23 | 郑春燕 | A kind of electrode material |
| CN107834026A (en) * | 2017-07-09 | 2018-03-23 | 郑春燕 | The combination electrode material and its preparation technology of a kind of high conductivity |
| CN107834066A (en) * | 2017-07-09 | 2018-03-23 | 郑春燕 | A kind of high conductivity combination electrode material and technique for adulterating manganese |
| CN107394203A (en) * | 2017-07-13 | 2017-11-24 | 扬州大学 | A kind of preparation method of two-dimensional ultrathin sheet manganese phosphate |
| CN110767890A (en) * | 2019-11-22 | 2020-02-07 | 广西大学 | Preparation method of multi-element doped carbon-coated lithium ion battery anode material |
| CN111816851A (en) * | 2020-06-22 | 2020-10-23 | 南昌大学 | Hierarchical porous LiMnxFe1-xPO4Template-free hydrothermal preparation method of/C composite microsphere cathode material |
| CN112018364A (en) * | 2020-09-05 | 2020-12-01 | 河南科技学院 | Equimolar hydrothermal method for preparing LiMnPO4Method for preparing composite material and application of composite material in lithium battery |
| CN117410579A (en) * | 2023-12-14 | 2024-01-16 | 湖南大学 | Preparation method and application of high-performance lithium ion battery for energy storage |
| CN117410579B (en) * | 2023-12-14 | 2024-03-12 | 湖南大学 | Preparation method and application of high-performance lithium ion battery for energy storage |
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Application publication date: 20160420 |