CN108493443A - A kind of technique that anode material for lithium-ion batteries is prepared based on manganese lithium - Google Patents
A kind of technique that anode material for lithium-ion batteries is prepared based on manganese lithium Download PDFInfo
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- CN108493443A CN108493443A CN201810195989.4A CN201810195989A CN108493443A CN 108493443 A CN108493443 A CN 108493443A CN 201810195989 A CN201810195989 A CN 201810195989A CN 108493443 A CN108493443 A CN 108493443A
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- China
- Prior art keywords
- lithium
- manganese
- ion batteries
- anode material
- sintering
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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
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of techniques preparing anode material for lithium-ion batteries based on manganese lithium comprising following steps：S1, suitable manganese source, lithium source are weighed, the sintering aid boron of appropriate ratio, modified material aluminium and magnesium is added；S2, it is put into high efficient mixer or the big mixing machine of V-type and is sufficiently mixed；S3, mixed material is put into sintering kiln, atmosphere of ventilating, it is 800 850 DEG C to keep temperature, the time：8 12h, atmosphere：2‑8m3/h；It crosses air-flow crushing after S4, sintering, removes iron, sieve wraps to obtain the final product.The present invention improves charge/discharge capacity and cyclicity by adding sintering aid to reduce the sintering temperature time and mix modified material；Manufacturing process of the present invention is simple, so that the production cycle is foreshortened to 5 8h, cost reduction to 2000 3000/T by adding sintering aid；The present invention makes its structure more stablize, cyclicity is more preferable, and charge/discharge capacity is effectively promoted by mixing modified material.
Description
Technical field
The present invention relates to a kind of techniques preparing anode material for lithium-ion batteries based on manganese lithium.
Background technology
Lithium ion battery has been promoted in the whole world as New Energy Industry, and LiMn2O4 is as lithium ion cell positive
One kind of material, is always the emphasis studied in industry and developing direction, and be widely used in digital product, electric tool,
Electric vehicle and electric vehicle field.Existing positive electrode disadvantage is poor to be recycled under hot conditions, and charge/discharge capacity is relatively low,
Sintering temperature is excessively high.
Invention content
The technical problem to be solved by the present invention is to overcome the defects of the prior art, provide one kind and preparing lithium ion based on manganese lithium
The technique of cell positive material.
In order to solve the above technical problem, the present invention provides the following technical solutions：
The invention discloses a kind of techniques preparing anode material for lithium-ion batteries based on manganese lithium comprising following steps：
S1, suitable manganese source, lithium source are weighed, the sintering aid boron of appropriate ratio, modified material aluminium and magnesium is added；
S2, it is put into high efficient mixer or the big mixing machine of V-type and is sufficiently mixed；
S3, mixed material is put into sintering kiln, atmosphere of ventilating, it is 800-850 DEG C to keep temperature, the time：8-12h, gas
Atmosphere：2-8m3/h；
It crosses air-flow crushing after S4, sintering, removes iron, sieve wraps to obtain the final product.
Further, in step sl, manganese source is electrolytic manganese dioxide or mangano-manganic oxide.
Further, in step sl, lithium source is lithium carbonate or lithium hydroxide.
Further, in step sl, sintering aid boron is boron oxide or boric acid.
Further, in step sl, modified material aluminium is aluminium oxide or aluminium hydroxide.
Further, in step sl, modified material magnesium is magnesia or magnesium hydroxide.
Further, in step sl, based on elemental mole ratios, Li：Mn：Al：Mg=1.05:1.95:0.03:0.05.
The advantageous effect that is reached of the present invention is：
The present invention improves charge and discharge capacitance by adding sintering aid to reduce the sintering temperature time and mix modified material
Amount and cyclicity；Manufacturing process of the present invention is simple, so that the production cycle is foreshortened to 5-8h by adding sintering aid, cost reduction is extremely
2000-3000/T；The present invention makes its structure more stablize, cyclicity is more preferable, and charge/discharge capacity obtains by mixing modified material
Effectively promoted.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is that finished product made from embodiment 1 carries out the result figure after button point test；
Fig. 2 is that finished product made from embodiment 2 carries out the result figure after button point test.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment 1：
By elemental mole ratios Li：Mn：Al：Mg=1.05:1.95:0.03:0.05 weighs lithium carbonate 95kg, electrolysis titanium dioxide
Manganese 440kg, aluminium hydroxide 10kg, magnesia 8kg, then weigh 500g boric acid.Above-mentioned material is put into V-Mixer and is filled
Divide mixing, incorporation time 100min.Mixture is put in 850 ° of ejection plate kiln to be sintered 11 hours, gives atmosphere 4-6m3/h.Production
Product subsequently carry out air-flow crushing, except being sieved after iron.Button point test, test result such as Fig. 1 are carried out after obtaining LiMn2O4 finished product.Head fills
123mAh/g, 90 weeks capacity retention are 97.8%.
Embodiment 2：
By elemental mole ratios Li：Mn：Al：Mg=1.05:1.95:0.03:0.05 weighs lithium carbonate 19kg, electrolysis titanium dioxide
Manganese 88kg, aluminium hydroxide 2kg, magnesia 1.6kg, then weigh 120g boric acid.Above-mentioned material, which is put into high-speed mixer, to be filled
It is 600r/min low frequency mixing 5min, then 1200r/min high frequency mixing 5min, total 10min to divide mixing, incorporation time.It will mixing
Object is put in 830 ° of ejection plate kiln and is sintered 11 hours, gives atmosphere 4-6m3/h.Product subsequently carries out air-flow crushing, except being sieved after iron.
Button point test, test result such as Fig. 2 are carried out after obtaining LiMn2O4 finished product.Head is filled up to 127.8mAh/g, and capacity retention is within 90 weeks
94.7%.
Conclusion：The cycle of example 1 is better than example 2, and 2 capacity of example is better than example 1, and properties reach goal of the invention.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (7)
1. a kind of technique preparing anode material for lithium-ion batteries based on manganese lithium, which is characterized in that include the following steps：
S1, suitable manganese source, lithium source are weighed, the sintering aid boron of appropriate ratio, modified material aluminium and magnesium is added；
S2, it is put into high efficient mixer or the big mixing machine of V-type and is sufficiently mixed；
S3, mixed material is put into sintering kiln, atmosphere of ventilating, it is 800-850 DEG C to keep temperature, the time：8-12h, atmosphere：2-
8m3/h；
It crosses air-flow crushing after S4, sintering, removes iron, sieve wraps to obtain the final product.
2. a kind of technique preparing anode material for lithium-ion batteries based on manganese lithium according to claim 1, which is characterized in that
In step sl, manganese source is electrolytic manganese dioxide or mangano-manganic oxide.
3. a kind of technique preparing anode material for lithium-ion batteries based on manganese lithium according to claim 1, which is characterized in that
In step sl, lithium source is lithium carbonate or lithium hydroxide.
4. a kind of technique preparing anode material for lithium-ion batteries based on manganese lithium according to claim 1, which is characterized in that
In step sl, sintering aid boron is boron oxide or boric acid.
5. a kind of technique preparing anode material for lithium-ion batteries based on manganese lithium according to claim 1, which is characterized in that
In step sl, modified material aluminium is aluminium oxide or aluminium hydroxide.
6. a kind of technique preparing anode material for lithium-ion batteries based on manganese lithium according to claim 1, which is characterized in that
In step sl, modified material magnesium is magnesia or magnesium hydroxide.
7. special according to a kind of any technique preparing anode material for lithium-ion batteries based on manganese lithium of claim 1~6
Sign is, in step sl, based on elemental mole ratios, Li：Mn：Al：Mg=1.05:1.95:0.03:0.05.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810195989.4A CN108493443A (en) | 2018-03-09 | 2018-03-09 | A kind of technique that anode material for lithium-ion batteries is prepared based on manganese lithium |
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| CN201810195989.4A CN108493443A (en) | 2018-03-09 | 2018-03-09 | A kind of technique that anode material for lithium-ion batteries is prepared based on manganese lithium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115275178A (en) * | 2022-07-18 | 2022-11-01 | 贵州振华新材料有限公司 | Single crystal sodium ion battery positive electrode material, preparation method thereof and battery |
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| CN102171862A (en) * | 2008-10-01 | 2011-08-31 | 户田工业株式会社 | Lithium manganate powder for nonaqueous electrolyte secondary battery, method for producing same, and nonaqueous electrolyte secondary battery |
| EP2868630A1 (en) * | 2013-07-26 | 2015-05-06 | LG Chem, Ltd. | Polycrystalline lithium manganese oxide particles, method for preparing same, and anode active material containing polycrystalline lithium manganese oxide particles |
| CN105449191A (en) * | 2015-12-26 | 2016-03-30 | 长春瑛隆材料科技有限公司 | Preparation method of lithium ion battery cathode material |
| CN106450282A (en) * | 2016-11-19 | 2017-02-22 | 合肥国轩高科动力能源有限公司 | Large monocrystal lithium nickel manganate anode material and preparation method thereof |
| WO2017106817A1 (en) * | 2015-12-17 | 2017-06-22 | The Regents Of The University Of Michigan | Slurry formulation for the formation of layers for solid batteries |
| CN107394196A (en) * | 2017-06-29 | 2017-11-24 | 宁波吉电鑫新材料科技有限公司 | A kind of one-step synthesis perovskite lithium ion battery negative material and preparation method thereof |
-
2018
- 2018-03-09 CN CN201810195989.4A patent/CN108493443A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102171862A (en) * | 2008-10-01 | 2011-08-31 | 户田工业株式会社 | Lithium manganate powder for nonaqueous electrolyte secondary battery, method for producing same, and nonaqueous electrolyte secondary battery |
| EP2868630A1 (en) * | 2013-07-26 | 2015-05-06 | LG Chem, Ltd. | Polycrystalline lithium manganese oxide particles, method for preparing same, and anode active material containing polycrystalline lithium manganese oxide particles |
| WO2017106817A1 (en) * | 2015-12-17 | 2017-06-22 | The Regents Of The University Of Michigan | Slurry formulation for the formation of layers for solid batteries |
| CN105449191A (en) * | 2015-12-26 | 2016-03-30 | 长春瑛隆材料科技有限公司 | Preparation method of lithium ion battery cathode material |
| CN106450282A (en) * | 2016-11-19 | 2017-02-22 | 合肥国轩高科动力能源有限公司 | Large monocrystal lithium nickel manganate anode material and preparation method thereof |
| CN107394196A (en) * | 2017-06-29 | 2017-11-24 | 宁波吉电鑫新材料科技有限公司 | A kind of one-step synthesis perovskite lithium ion battery negative material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115275178A (en) * | 2022-07-18 | 2022-11-01 | 贵州振华新材料有限公司 | Single crystal sodium ion battery positive electrode material, preparation method thereof and battery |
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Application publication date: 20180904 |