CN108232184A - A kind of LiPrxMn2-xO4Li-ion electrode materials - Google Patents
A kind of LiPrxMn2-xO4Li-ion electrode materials Download PDFInfo
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- CN108232184A CN108232184A CN201611156592.1A CN201611156592A CN108232184A CN 108232184 A CN108232184 A CN 108232184A CN 201611156592 A CN201611156592 A CN 201611156592A CN 108232184 A CN108232184 A CN 108232184A
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- lipr
- electrode materials
- ion electrode
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- ball milling
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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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- 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)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The present invention discloses a kind of LiPrxMn2‑xO4Li-ion electrode materials and its preparation process.The material is using lithium carbonate, manganese dioxide, lanthanum acetate as raw material, passes through ball milling, high-temperature calcination Solid phase synthesis LiPrxMn2‑xO4Li-ion electrode materials.This is simple for process, easy to control, and the electrode material ingredient of preparation is uniform, and electric rate is high.
Description
Technical field
The present invention relates to a kind of li-ion electrode materials, more particularly to a kind of rare earth doped LiMn2O4Li-ion electrode material
Material and its preparation process, belong to battery electrode material field.
Background technology
With being widely used for the digital product such as products such as mobile phone, laptop, lithium ion battery is with excellent performance
Be used widely in this kind of product, lithium battery be it is a kind of by lithium metal or lithium alloy for negative material, using non-aqueous solution electrolysis
The battery of matter solution.The lithium battery occurred earliest uses following reaction：Li+MnO2=LiMnO2, which is redox reaction,
Electric discharge.Since the chemical characteristic of lithium metal is very active so that processing, preservation, the use of lithium metal, to environmental requirement very
Height, so lithium battery production will carry out under special environmental condition.Later, it is negative that Sony Corporation of Japan, which had been invented using Carbon Materials,
Pole makees the lithium battery of anode with the compound containing lithium, in charge and discharge process, exists without lithium metal, only lithium ion, this is just
It is lithium ion battery.Lithium ion battery is with it is higher than energy, operating voltage is high, have extended cycle life, memory-less effect, pollution-free etc.
Advantage is widely used in portable electronics and new traffic tool.
Positive electrode is by initial lithium metal to LiCoO2, and most possible replacement LiCoO now2Be LiMn2O4.So
And current most development potentiality is rare earth lithium battery, so-called rare earth lithium battery is exactly to be adulterated in former anode material of lithium battery
Rare earth element has document to point out, to LiMn2O4The rare earth doped element of ingredient, can effectively improve cycle performance, slow down electrode resistance
Anti- increase.The present invention is raw material through ball milling, calcine technology Solid phase synthesis using lithium carbonate, electrolytic manganese dioxide, praseodymium acetate
LiPrxMn2-xO4 Material improves LiMn2O4The comprehensive performance of electrode material.
Invention content
The object of the present invention is to provide a kind of rare earth doped LiMn2O4Li-ion electrode materials and its preparation process.The system
Standby technique includes the following steps：
(1) appropriate chemical pure lithium carbonate, electrolytic manganese dioxide, praseodymium acetate are taken as raw material, according to LiPrxMn2-xO4（0.01≤
X≤0.1）Atomic ratio dispensing；
(2) the raw mixture prepared is poured into ball grinder together, and add suitable steel ball, under the protection of acetone, with row
Planetary ball mill carries out ball milling；
(3) the alloy powder of ball milling is dried；
(4) the high-temperature calcination under the conditions of starvation by the alloy powder after drying；
(5) after calcining, powder is collected up to product.
Preferentially, step (1) in, according to LiPrxMn2-xO4（0.03≤X≤0.05）Atomic ratio dispensing.
Preferentially, step (2) in, ratio of grinding media to material 10-20.
Preferentially, step (2) in, the time that ball milling is carried out with planetary ball mill is 20-40h.
Preferentially, step (4) in, high-temperature calcination temperature be 700-900 DEG C, time control is in 10-20h.
The present invention has following advantages and characteristic：
(1) the electrode material prepared point is uniform, conductivity is high；
(2) preparation process is simple, and flow is short；
(3) condition control is simple, it is easy to accomplish industrialization.
Embodiment one：
First using lithium carbonate, electrolytic manganese dioxide, praseodymium acetate as raw material, according to LiPr0.01Mn1.99O4Atomic ratio dispensing 5g,
The mixture material prepared is poured into ball grinder together, and puts into the steel ball of 100g, then pour into acetone soln, submerges ball grinder
Afterwards, cover is covered tightly, is put into planetary ball mill and carries out ball milling, after ball milling 40h, alloy powder is taken out, it is smooth to be put into one
It is dried in container, then the powder dried is fitted into quartz glass tube, in the case of continuous pumping, carry out vacuum sealing, it will
Air-tightness is verified in the quartz glass tube input water of sealing, if bubble-free, can assert that its leakproofness is good, then quartz glass
Pipe takes out, and dries to be put into 700 DEG C of high temperature furnace after moisture and be calcined, after calcining 20h, by treated quartz glass tube
It takes out, quartz glass tube is smashed after cooling, collect powder up to product.
Embodiment two：
First using lithium carbonate, electrolytic manganese dioxide, praseodymium acetate as raw material, according to LiPr0.1Mn1.9O4Atomic ratio dispensing 10g,
The mixture material prepared is poured into ball grinder together, and puts into the steel ball of 150g, then pour into acetone soln, submerges ball grinder
Afterwards, cover is covered tightly, is put into planetary ball mill and carries out ball milling, after ball milling 30h, alloy powder is taken out, it is smooth to be put into one
It is dried in container, then the powder dried is fitted into quartz glass tube, in the case of continuous pumping, carry out vacuum sealing, it will
Air-tightness is verified in the quartz glass tube input water of sealing, if bubble-free, can assert that its leakproofness is good, then quartz glass
Pipe takes out, and dries to be put into 800 DEG C of high temperature furnace after moisture and be calcined, after calcining 15h, by treated quartz glass tube
It takes out, quartz glass tube is smashed after cooling, collect powder up to product.
Embodiment three：
First using lithium carbonate, electrolytic manganese dioxide, praseodymium acetate as raw material, according to LiPr0.05Mn1.95O4Atomic ratio dispensing
20g pours into the mixture material prepared in ball grinder together, and puts into the steel ball of 200g, then pour into acetone soln, submerges ball
After grinding jar, cover is covered tightly, planetary ball mill is put into and carries out ball milling, after ball milling 20h, alloy powder is taken out, it is flat to be put into one
It is dried in whole container, then the powder dried is fitted into quartz glass tube, in the case of continuous pumping, it is close to carry out vacuum
Envelope will verify air-tightness in the quartz glass tube input water of sealing, if bubble-free, can assert that its leakproofness is good, then stone
English glass tube takes out, and dries to be put into 900 DEG C of high temperature furnace after moisture and be calcined, after calcining 10h, by treated quartz
Glass tube takes out, and quartz glass tube is smashed after cooling, collects powder up to product.
Claims (5)
1. a kind of LiPrxMn2-xO4Li-ion electrode materials, it is characterised in that the preparation method of the material carries out as follows：
(1) appropriate chemical pure lithium carbonate, electrolytic manganese dioxide, praseodymium acetate are taken as raw material, according to LiPrxMn2-xO4（0.01≤X
≤0.1）Atomic ratio dispensing；
(2) the raw mixture prepared is poured into ball grinder together, and add suitable steel ball, under the protection of acetone, with row
Planetary ball mill carries out ball milling；
(3) the alloy powder of ball milling is dried；
(4) the high-temperature calcination under the conditions of starvation by the alloy powder after drying；
(5) after calcining, powder is collected up to product.
2. a kind of LiPr as shown in claim 1xMn2-xO4Li-ion electrode materials, which is characterized in that step (1) in, press
According to LiPrxMn2-xO4（0.03≤X≤0.05）Atomic ratio dispensing.
3. a kind of LiPr as shown in claim 1xMn2-xO4Li-ion electrode materials, which is characterized in that step (2) in, ball
Material is than being 10-20.
4. a kind of LiPr as shown in claim 1xMn2-xO4Li-ion electrode materials, which is characterized in that step (2) in, use
The time that planetary ball mill carries out ball milling is 20-40h.
5. a kind of LiPr as shown in claim 1xMn2-xO4Li-ion electrode materials, which is characterized in that step (4) in, it is high
Warm calcination temperature is 700-900 DEG C, and time control is in 10-20h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611156592.1A CN108232184A (en) | 2016-12-15 | 2016-12-15 | A kind of LiPrxMn2-xO4Li-ion electrode materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611156592.1A CN108232184A (en) | 2016-12-15 | 2016-12-15 | A kind of LiPrxMn2-xO4Li-ion electrode materials |
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| Publication Number | Publication Date |
|---|---|
| CN108232184A true CN108232184A (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611156592.1A Pending CN108232184A (en) | 2016-12-15 | 2016-12-15 | A kind of LiPrxMn2-xO4Li-ion electrode materials |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195042A (en) * | 2010-03-09 | 2011-09-21 | 中国科学院过程工程研究所 | High performance lithium ion battery anode material lithium manganate and preparation method thereof |
| CN105576237A (en) * | 2015-12-20 | 2016-05-11 | 李梦思 | Zn-added lithium ion battery cathode material and preparation method thereof |
-
2016
- 2016-12-15 CN CN201611156592.1A patent/CN108232184A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195042A (en) * | 2010-03-09 | 2011-09-21 | 中国科学院过程工程研究所 | High performance lithium ion battery anode material lithium manganate and preparation method thereof |
| CN105576237A (en) * | 2015-12-20 | 2016-05-11 | 李梦思 | Zn-added lithium ion battery cathode material and preparation method thereof |
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Application publication date: 20180629 |
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