CN110148715A - The preparation method of the rich lithium material of oxide coated by zinc - Google Patents
The preparation method of the rich lithium material of oxide coated by zinc Download PDFInfo
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- 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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- 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 present invention relates to field of lithium more particularly to a kind of preparation methods of the rich lithium material of oxide coated by zinc.The preparation method of the rich lithium material of oxide coated by zinc designed by the present invention obtains mixed solution comprising steps of 1) ascorbic acid and hexa are dissolved in deionized water, based on molal quantity, ascorbic acid: hexa=1:4；2) rich lithium material is added into mixed solution, adds dropwise acetic acid zinc solution after mixing evenly, the rich lithium material of oxide coated by zinc is finally successively obtained after centrifugation, drying, calcination process.The rich lithium material that the present invention obtains not only coulombic efficiency with higher, and preparation method is simple, it is at low cost.
Description
Technical field
The present invention relates to field of lithium more particularly to a kind of preparation methods of the rich lithium material of oxide coated by zinc.
Background technique
Currently, in the positive electrode studied so far, rich lithium transition-metal that J.R.Dahn seminar reports for the first time
Oxide has highest charge/discharge capacity (> 250mAh/g).But the loss of irreversible capacity in its cyclic process for the first time,
Low range performance and low capacity retention ratio limit practical application of the rich oxidate for lithium in electric car.
In general, the method that people use cladding is modified rich lithium material to reduce the loss of irreversible capacity, such as
MgO、Al2O3、Fe2O3、ZnO、AlPO4And Mg3(PO4)2Rich lithium material is coated, clad makes between electrode surface and electrolyte
Direct contact area minimize, facilitate the erosion for the HF for preventing material from being generated by side reaction.
At present there are mainly two types of the methods of ZnO cladding, one, lithium-rich anode material and aqueous zinc acetate solution are carried out simple
Mixing；Two, using radiofrequency magnetron sputtering technology.Lithium-rich anode material and aqueous zinc acetate solution, which carry out simple mixing, to be led
Clad is caused to be easy to fall off in cyclic process, referring to document " Y.-K.Sun, et al.Electrochemical
performance of nano-sized ZnO-coated LiNi0.5Mn1.5O4spinel as 5V materials at
elevated temperatures.Electrochemistry Communications,2002,4,344-348"；Using penetrating
Frequency magnetron sputtering technique carries out oxide coated by zinc, and capsulation condition is harsh, at high cost, complicated for operation, such as document " Xinyi
Dai,et al.Superior electrochemical performance of LiCoO2electrodes enabled by
conductive Al2O3-doped ZnO coating via magnetron sputtering.Journal of Power
Sources, 2015,298,114-122 " and " Xinyi Dai, et al.Improved Electrochemical
Performance of LiCoO2 Electrodes with ZnO Coating by Radio Frequency
Magnetron Sputtering. ACS Applied Materials&Interfaces,2014,6,15853-15859”。
Summary of the invention
In order to solve problem above, the object of the present invention is to provide a kind of preparation sides of the rich lithium material of oxide coated by zinc
Method, obtained rich lithium material not only coulombic efficiency with higher, and also preparation method is simple, and it is at low cost.
To achieve the above object, the preparation method of the rich lithium material of the oxide coated by zinc designed by the present invention, including step
It is rapid:
1) ascorbic acid and hexa are dissolved in deionized water and obtain mixed solution, based on molal quantity, resisted
Bad hematic acid: hexa=1:4；
2) rich lithium material is added into mixed solution, adds dropwise acetic acid zinc solution after mixing evenly, finally successively passes through
The rich lithium material of oxide coated by zinc is obtained after crossing centrifugation, drying, calcination process.
Compared with the existing method for carrying out oxide coated by zinc using radiofrequency magnetron sputtering technology, the present invention passes through addition six
Methenamine and ascorbic acid carry out oxide coated by zinc to rich lithium material, and hexa and ascorbic acid play buffering
Effect, more evenly form compact and stable clad can be formed.It avoids and is prepared into using radiofrequency magnetron sputtering technology bring
This high and complicated for operation problem.
Preferably, the rich lithium material is Li1.2Ni0.2Mn0.6O2Material.
Preferably, the rich lithium material is La doped richness lithium material, molecular formula Li1.2Ni0.2-xMn0.6- xLa2xO2, x=0.01~0.03, preparation process is, in N2Under atmosphere, by NiSO4·6H2O、MnSO4·H2O and La2
(SO4)3Aqueous solution is added in continuous stirred tank reactor, wherein Ni+、Mn4+、La3+Total mol concentration be 2M, be added simultaneously
NaOH solution and NH3·H2O solution control pH value be 11.0~11.5, then in turn through after filtering and drying with Li2CO3
The molar ratio of mixing and ball milling, lithium and transition metal is 1.5~1.7:1, and finally calcining obtains La doped richness lithium material.Pass through lanthanum
Doping is modified rich lithium material, is conducive to Li+Insertion and abjection, further increase coulombic efficiency.
Preferably, the molal quantity of the ascorbic acid is 0.1~0.2mol, and the hexa rubs
Your number is 0.4~0.8mol, and the volume of the deionized water is 100mL；The quality of the richness lithium material is 2~4g, the second
Sour zinc solution is that 0.1~0.15g zinc acetate is dissolved in 50ml deionized water.By limiting the covering amount of rich lithium material, control
The thickness of oxide coated by zinc, further increases coulombic efficiency.
The present invention has the advantages that
1, the technical process of oxide coated by zinc of the invention is simple, is not related to large-scale instrument and equipment, preparation condition temperature
With.
2, the present invention modifies Li by La doped and oxide coated by zinc jointly1.2Ni0.2Mn0.6O2Rich lithium material improves rich
The structural stability of lithium material promotes Li+Deintercalation, effectively inhibit the generation of oxygen defect, reduce the damage of irreversible capacity for the first time
It loses, and then improves its initial coulomb efficiency.
Specific embodiment
For a better understanding of the invention, invention is described in detail below with reference to specific example.
To solve the problems, such as existing oxide coated by zinc richness lithium material there are preparation condition harshness, the present invention provides a kind of oxygen
Change the preparation method of the rich lithium material of zinc cladding, specifically, the present invention passes through addition hexa and ascorbic acid pair
Rich lithium material carries out oxide coated by zinc, the ZnO film that can be formed aqueous zinc acetate solution using hexa and ascorbic acid
It is coated on rich lithium material, avoids high using radiofrequency magnetron sputtering technology bring preparation cost more evenly form compact and stablely
High and complicated for operation problem.Below by by specific embodiment come the lithium-rich anode material to oxide coated by zinc of the invention
The preferred embodiment of the preparation method of material is described in detail.
Embodiment 1
The preparation method of oxide coated by zinc richness lithium material, comprising steps of
La doped richness lithium material (Li1.2Ni0.2-xMn0.6-xLa2xO2, x=0.01) preparation: by 0.475M NiSO4·
6H2O、1.475MMnSO4·H2O and 0.025MLa2(SO4)3Aqueous solution is added in continuous stirred tank reactor, wherein Ni+、Mn4 +、La3+Total mol concentration be 2M, feed rate 2mL/min, meanwhile, NaOH solution and NH is added3·H2O solution controls pH
Value is 11.0, and solution temperature is 50 DEG C, and whole process is in N2It is carried out under atmosphere.Filtering, it is dry after with Li2CO3Mix ball
2h is ground, wherein the molar ratio of lithium and transition metal is 1.5:1, and finally 800 DEG C of calcining 15h obtain Li in Muffle furnace1.2Ni0.2- xMn0.6-xLa2xO2Material, wherein x=0.01.
Oxide coated by zinc: the hexa of the ascorbic acid and 0.4mol that weigh 0.1mol be dissolved in 100mL go from
Mixed solution is obtained in sub- water, then 2gLi is added into mixed solution1.2Ni0.2-xMn0.6-xLa2xO2Material, wherein x=0.01；
Acetic acid zinc solution (0.14g zinc acetate is dissolved in 50mL deionized water) is added dropwise again after mixing evenly, is finally successively passed through
4h is stirred, is centrifuged, 4h is calcined after drying process at 650 DEG C and oxide coated by zinc Li is prepared1.2Ni0.2-xMn0.6-xLa2xO2,
The rich lithium material of x=0.01.
Embodiment 2
The preparation method of oxide coated by zinc La doped richness lithium material, comprising steps of
La doped richness lithium material (Li1.2Ni0.2-xMn0.6-xLa2xO2, x=0.02) preparation: by 0.45M NiSO4·
6H2O、1.45MMnSO4·H2O and 0.05MLa2(SO4)3Aqueous solution is added in continuous stirred tank reactor, wherein Ni+、Mn4+、
La3+Total mol concentration be 2M, feed rate 2mL/min, meanwhile, NaOH solution and NH is added3·H2O solution controls pH value
It is 11.3, solution temperature is 50 DEG C, and whole process is in N2It is carried out under atmosphere.Filtering, it is dry after with Li2CO3Mixing and ball milling
2h, wherein the molar ratio of lithium and transition metal is 1.6:1, and mixture 850 DEG C of calcining 15h in Muffle furnace obtain Li1.2Ni0.2- xMn0.6-xLa2xO2Material, wherein x=0.02.
Oxide coated by zinc: the hexa of the ascorbic acid and 0.8mol that weigh 0.2mol be dissolved in 100mL go from
Mixed solution is obtained in sub- water, then 3gLi is added into mixed solution1.2Ni0.2-xMn0.6-xLa2xO2Material, wherein x=0.02；
Acetic acid zinc solution (0.1g zinc acetate is dissolved in 50mL deionized water) is added dropwise again after mixing evenly, finally successively by stirring
4h is mixed, is centrifuged, 3h is calcined after drying process at 700 DEG C and oxide coated by zinc Li is prepared1.2Ni0.2-xMn0.6-xLa2xO2, x
=0.02 rich lithium material.
Embodiment 3
The preparation method of oxide coated by zinc La doped richness lithium material, comprising steps of
La doped richness lithium material (Li1.2Ni0.2-xMn0.6-xLa2xO2, x=0.03) preparation: by 0.425M NiSO4·
6H2O、1.425MMnSO4·H2O and 0.075MLa2(SO4)3Aqueous solution is added in continuous stirred tank reactor, wherein Ni+、Mn4 +、La3+Total mol concentration be 2M, feed rate 2mL/min, meanwhile, NaOH solution and NH is added3·H2O solution controls pH
Value is 11.5, and solution temperature is 50 DEG C, and whole process is in N2It is carried out under atmosphere.Filtering, it is dry after with Li2CO3Mix ball
2h is ground, wherein the molar ratio of lithium and transition metal is 1.7:1, and mixture 900 DEG C of calcining 10h in Muffle furnace are obtained
Li1.2Ni0.2-xMn0.6-xLa2xO2Material, wherein x=0.03.
Oxide coated by zinc: the hexa of the ascorbic acid and 0.6mol that weigh 0.15mol is dissolved in 100mL and goes
Mixed solution is obtained in ionized water, then 4gLi is added into mixed solution1.2Ni0.2-xMn0.6-xLa2xO2Material, wherein x=
0.03；Acetic acid zinc solution (0.15g zinc acetate is dissolved in 50mL deionized water) is added dropwise again after mixing evenly, finally successively
By stirring 4h, it is centrifuged, calcines 2h after drying process at 750 DEG C and oxide coated by zinc Li is prepared1.2Ni0.2-xMn0.6- xLa2xO2, the rich lithium material of x=0.03.
Embodiment 4
Li1.2Ni0.2Mn0.6O2Preparation: by 0.5M NiSO4·6H2O、1.5MMnSO4·H2O and aqueous solution are added continuous
In stirred tank reactor, wherein Ni+、Mn4+Total mol concentration be 2M, feed rate 2mL/min, meanwhile, be added NaOH solution
And NH3·H2It is 11.5 that O solution, which controls pH value, and solution temperature is 50 DEG C, and whole process is in N2It is carried out under atmosphere.Filtering,
After drying with Li2CO3Mixing and ball milling 2h, wherein the molar ratio of lithium and transition metal is 1.5:1, and mixture is 900 in Muffle furnace
DEG C calcining 10h obtain Li1.2Ni0.2Mn0.6O2Material.
Oxide coated by zinc richness lithium material: the hexa of the ascorbic acid and 0.4mol that weigh 0.1mol is dissolved in
Mixed solution is obtained in 100mL deionized water, then 4g Li is added into mixed solution1.2Ni0.2Mn0.6O2Material stirs evenly
Acetic acid zinc solution (0.14g zinc acetate is dissolved in 50mL deionized water) is added dropwise again afterwards, finally successively by stirring 4h, from
The heart calcines 2h after drying process at 750 DEG C and oxide coated by zinc Li is prepared1.2Ni0.2Mn0.6O2Rich lithium material.
In order to test the chemical property that ZnO coats rich lithium material, the assembling product that Examples 1 to 4 is obtained at
CR2032 model button cell carries out first charge-discharge and coulomb effect in 2.8V~4.8V voltage range, under 0.1C multiplying power
Rate.Comparative example 1 is the Li not coated1.2Ni0.2Mn0.6O2Rich lithium material, as shown in table 1:
Table 1
From table 1 it follows that Li1.2Ni0.2Mn0.6O2, ZnO coat Li1.2Ni0.2-xMn0.6-xLa2xO2Rich lithium material is (real
Apply example 1, embodiment 2, embodiment 3) and ZnO cladding Li1.2Ni0.2Mn0.6O2Rich lithium material (embodiment 4) discharge for the first time ratio
Capacity is respectively 330.7mAh/g, 309.6mAh/g, 308.9mAh/g and 309.2mAh/g, 314.0 mAh/g, is discharged for the first time
Capacity is respectively 238.5mAh/g, 242.2mAh/g, 241.8mAh/g and 241.6mAh/g, 240.2mAh/g, irreversible for the first time
Capacitance loss is respectively 92.2mAh/g, 67.4mAh/g, 67.1mAh/g and 67.6mAh/g, 73.8mAh/g, and coulomb is imitated for the first time
Rate is respectively 71.2%, 77.6%, 78.5% and 77.9%, 76.5%.Prove that ZnO coats rich lithium material and reduces for the first time not
Reversible capacity loss, improves coulombic efficiency.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to of the invention
Protection scope.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (4)
1. a kind of preparation method of the rich lithium material of oxide coated by zinc, which is characterized in that comprising steps of
1) ascorbic acid and hexa are dissolved in deionized water and obtain mixed solution, based on molal quantity, Vitamin C
Acid: hexa=1:4；
2) rich lithium material is added into mixed solution, adds dropwise acetic acid zinc solution after mixing evenly, finally successively by from
The rich lithium material of oxide coated by zinc is obtained after the heart, drying, calcination process.
2. the preparation method of the rich lithium material of oxide coated by zinc according to claim 1, which is characterized in that the richness lithium material
Material is Li1.2Ni0.2Mn0.6O2Material.
3. the preparation method of the rich lithium material of oxide coated by zinc according to claim 1, which is characterized in that the richness lithium material
Material is La doped richness lithium material, molecular formula Li1.2Ni0.2-xMn0.6-xLa2xO2, x=0.01~0.03, preparation process is,
In N2Under atmosphere, by NiSO4·6H2O、MnSO4·H2O and La2(SO4)3Aqueous solution is added in continuous stirred tank reactor, wherein
Ni+、Mn4+、La3+Total mol concentration be 2M, while NaOH solution and NH is added3·H2O solution control pH value be 11.0~
11.5, then in turn through after filtering and drying with Li2CO3The molar ratio of mixing and ball milling, lithium and transition metal is 1.5~1.7:
1, finally calcining obtains La doped richness lithium material.
4. the preparation method of the rich lithium material of oxide coated by zinc according to claim 2 or 3, which is characterized in that described anti-
The molal quantity of bad hematic acid is 0.1~0.2mol, and the molal quantity of the hexa is 0.4~0.8mol, the deionization
The volume of water is 100mL；The quality of the richness lithium material is 2~4g, and the acetic acid zinc solution is by 0.1~0.15g zinc acetate
It is dissolved in 50ml deionized water.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102244259A (en) * | 2011-06-17 | 2011-11-16 | 中国科学院化学研究所 | Composite lithium-rich anode material, its preparation method and its application |
| CN103441252A (en) * | 2013-08-12 | 2013-12-11 | 天津巴莫科技股份有限公司 | Method for preparing lithium-enriched manganese-based anode material of nano-oxide-coated lithium ion battery |
| CN104362332A (en) * | 2014-09-25 | 2015-02-18 | 天津大学 | Preparation method of lithium-rich cathode material for lithium ion battery |
| CN105591098A (en) * | 2016-03-18 | 2016-05-18 | 武汉理工大学 | Li-rich positive electrode material with La doping and lithium amount change at same time and preparing method thereof |
| CN106006710A (en) * | 2016-05-24 | 2016-10-12 | 合肥工业大学 | Preparation method of beta-NaYF4:Yb/Tm@ZnO core-shell nano-particles |
| CN107732172A (en) * | 2017-09-25 | 2018-02-23 | 中国计量大学 | A kind of lithium ion battery negative material and preparation method thereof |
| CN107785557A (en) * | 2017-11-01 | 2018-03-09 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of lithium-rich manganese-based stratified material based on La doped and surface Lacking oxygen modification associative mechanism and products thereof and application |
| EP3340261A1 (en) * | 2012-07-18 | 2018-06-27 | Printed Energy Pty Ltd | Diatomaceous energy storage devices |
| CN108321366A (en) * | 2017-12-28 | 2018-07-24 | 合肥国轩高科动力能源有限公司 | Coating method for improving electrochemical performance of high-nickel ternary nickel-cobalt-manganese positive electrode material |
| CN109047790A (en) * | 2018-07-17 | 2018-12-21 | 南京邮电大学 | A kind of gold nanorods/zinc oxide/mesoporous silicon oxide yolk shell nanocomposite and preparation method thereof |
| CN109536761A (en) * | 2018-12-03 | 2019-03-29 | 山东科技大学 | A kind of carbon nanotube/metal-base composites and preparation method thereof |
-
2019
- 2019-04-17 CN CN201910308140.8A patent/CN110148715A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102244259A (en) * | 2011-06-17 | 2011-11-16 | 中国科学院化学研究所 | Composite lithium-rich anode material, its preparation method and its application |
| EP3340261A1 (en) * | 2012-07-18 | 2018-06-27 | Printed Energy Pty Ltd | Diatomaceous energy storage devices |
| CN103441252A (en) * | 2013-08-12 | 2013-12-11 | 天津巴莫科技股份有限公司 | Method for preparing lithium-enriched manganese-based anode material of nano-oxide-coated lithium ion battery |
| CN104362332A (en) * | 2014-09-25 | 2015-02-18 | 天津大学 | Preparation method of lithium-rich cathode material for lithium ion battery |
| CN105591098A (en) * | 2016-03-18 | 2016-05-18 | 武汉理工大学 | Li-rich positive electrode material with La doping and lithium amount change at same time and preparing method thereof |
| CN106006710A (en) * | 2016-05-24 | 2016-10-12 | 合肥工业大学 | Preparation method of beta-NaYF4:Yb/Tm@ZnO core-shell nano-particles |
| CN107732172A (en) * | 2017-09-25 | 2018-02-23 | 中国计量大学 | A kind of lithium ion battery negative material and preparation method thereof |
| CN107785557A (en) * | 2017-11-01 | 2018-03-09 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of lithium-rich manganese-based stratified material based on La doped and surface Lacking oxygen modification associative mechanism and products thereof and application |
| CN108321366A (en) * | 2017-12-28 | 2018-07-24 | 合肥国轩高科动力能源有限公司 | Coating method for improving electrochemical performance of high-nickel ternary nickel-cobalt-manganese positive electrode material |
| CN109047790A (en) * | 2018-07-17 | 2018-12-21 | 南京邮电大学 | A kind of gold nanorods/zinc oxide/mesoporous silicon oxide yolk shell nanocomposite and preparation method thereof |
| CN109536761A (en) * | 2018-12-03 | 2019-03-29 | 山东科技大学 | A kind of carbon nanotube/metal-base composites and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| YU-CHENG CHANG: "ZnO nanopinecone arrays with enhanced photocatalytic performance in sunlight", 《RSC ADVANCES》 * |
| 宁桂玲等: "《高等无机合成》", 30 September 2007, 华东理工大学出版社 * |
| 王丹: "高容量富锂正极材料Li[Li0.2Ni0.2Mn0.6]O2的制备与改性研究", 《中国优秀博硕士学位论文全文数据库(硕士) 工程科技Ⅰ辑》 * |
| 郭景: "基于表面包覆构筑核壳结构纳米复合材料及其电化学性能研究", 《中国优秀博硕士学位论文全文数据库(硕士) 工程科技Ⅰ辑》 * |
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Application publication date: 20190820 |