CN103456943A - Composite positive material of lithium ion battery and preparation method of material - Google Patents
Composite positive material of lithium ion battery and preparation method of material Download PDFInfo
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- CN103456943A CN103456943A CN201310383480XA CN201310383480A CN103456943A CN 103456943 A CN103456943 A CN 103456943A CN 201310383480X A CN201310383480X A CN 201310383480XA CN 201310383480 A CN201310383480 A CN 201310383480A CN 103456943 A CN103456943 A CN 103456943A
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- ion battery
- lithium ion
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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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Abstract
The invention discloses a composite positive material of a lithium ion battery and a preparation method of the material. The composite positive material of the lithium ion battery consists of mesoporous silica and Li(NixCoyMn1-x-y)O2, wherein a mesoporous silica layer coats the surface of Li(NixCoyMn1-x-y)O2; the composite positive material is of micrometer scale. According to the invention, mesoporous silica uniformly coats the surface of the ternary composite positive material of the lithium ion battery, and the stability and the high-temperature cycling performance of the ternary material are changed by utilizing the energy density and the cycling performance of the ternary material and the outstanding stability and the excellent electrochemical activity of the mesoporous silica.
Description
Technical field
The present invention relates to a kind of lithium ion battery composite cathode material and preparation method thereof.
Background technology
Lithium ion battery is a kind of high-energy battery that fast development is nearly ten years got up, and no matter from technical indicators such as life-span, specific energy and voltages, or, from environment, it has become an important directions of China's New Energy Industry.Positive electrode Li (Ni
xco
ymn
1-x-y) O
2have that specific capacity is high, Heat stability is good and the advantage such as price is lower, be considered to a kind of positive electrode material of the most potential substituting cobalt acid lithium.But this material is unsatisfactory in large multiplying power and high temperature cyclic performance, may be because of electrode material and electrolyte generation interfacial reaction and layer structure unsteadiness etc., and then affects its chemical property.
Coating is to improve or improve Li (Ni
xco
ymn
1-x-y) O
2one of effective ways of chemical property.Se-Hee Lee philosophy Al
2o
3, ZrO
2, Al (OH)
3, CeO
2and SnPO
4deng coating Li (Ni
xco
ymn
1-x-y) O
2, its thermal stability and capacity etc. are had greatly improved.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of lithium ion battery composite cathode material.
The another one technical problem that the present invention will solve is to provide a kind of preparation method of lithium ion battery composite cathode material.
For lithium ion battery composite cathode material, the technical solution used in the present invention is: composite positive pole is by mesoporous silicon oxide and Li (Ni
xco
ymn
1-x-y) O
2form, and the meso-porous titanium dioxide silicon layer is coated on Li (Ni
xco
ymn
1-x-y) O
2surface.
As preferably, composite positive pole is micron order.
For the preparation method of lithium ion battery composite cathode material, the technical solution used in the present invention is: comprise the following steps:
(1) by Li (Ni
xco
ymn
1-x-y) O
2in solvent, disperse;
(2) softex kw is disperseed in solvent;
(3) mixed solution that slurry step (1) obtained and step (2) obtain is by Li (Ni
xco
ymn
1-x-y) O
2with the softex kw mol ratio be that 1～5:1 mixes, and add aqueous slkali, disperse;
(4) adding mol ratio in the mixed liquor of step (3) gained is that the tetraethoxysilane of 0.5～5 times of softex kw is reacted, and washing is dry, obtains mesoporous silicon oxide and coats ternary anode material for lithium-ion batteries, i.e. Li (Ni
xco
ymn
1-x-y) O
2/ mesoporous silicon oxide.
As preferably, the Li (Ni described in step (1)
xco
ymn
1-x-y) O
2for spherical or near-spherical powder granule, x in formula<1, y<1, x+y<1;
Described Li (Ni
xco
ymn
1-x-y) O
2particle diameter is 3～15 μ m;
Be separated into ultrasonic dispersion or magnetic agitation described in step (1) are disperseed;
Preferably, the jitter time described in step (1) is 0.5 h～5 h;
Preferably, the solvent described in step (2) is deionized water and/or ethanol, particularly preferably deionized water.
As preferably, described in step (2), be separated into ultrasonic dispersion;
Preferably, the jitter time described in step (2) is 0.25～3 h;
Preferably, the solvent described in step (2) is deionized water and/or ethanol, particularly preferably deionized water.
As preferably, step (1) is identical with the solvent species described in step (2).
As preferably, the Li (Ni described in step (3)
xco
ymn
1-x-y) O
2with the mol ratio of softex kw be 1～5:1.
As preferably, the combination that the alkali described in step (3) is a kind of in ammoniacal liquor, NaOH, potassium hydroxide or at least two kinds, and to regulate pH be 8～13;
Be separated into ultrasonic dispersion described in step (3); Preferably, the jitter time described in step (3) is 0.25～1 h.
As preferably, the mol ratio of the softex kw described in step (4) and tetraethoxysilane is 1:0.5～5;
The described tetraethoxysilane method that adds of step (4) adds for minute 3～5 steps, every step interval 0.5～2 h;
The described reaction time of step (4) is 5～48 h;
The described reaction temperature of step (4) is 30～80 ℃;
The mixing that the described cleaning solvent of step (4) is a kind of in water, ethanol, acetone, methyl alcohol, oxolane, benzene, toluene or at least two kinds, particularly preferably methyl alcohol;
The described baking temperature of step (4) is 80～120 ℃.
The invention has the beneficial effects as follows:
Mesoporous silicon oxide evenly is coated on ternary anode material for lithium-ion batteries surface, utilize energy density and the cycle performance of ternary material, utilize the outstanding stability of mesoporous silicon oxide and outstanding electro-chemical activity simultaneously, thereby changed stability and the high temperature circulation of ternary material.
Embodiment
Embodiment 1:
(1) by 0.02 mol Li (Ni
xco
ymn
1-x-y) O
2disperse 0.5 h in 10 ml deionized water for ultrasonic;
(2) 0.004 mol softex kw (CTAB) is disperseed to 0.5 h in 10 ml deionized water for ultrasonic;
(3) slurry step (1) obtained mixes with the mixed solution that step (2) obtains, and adds ammoniacal liquor, and regulating pH is 10;
(4) add the tetraethoxysilane (TEOS) of 0.012 mol in the mixed liquor of step (3) gained, minute three steps add, and every 0.5 h, add 0.004 mol TEOS, temperature is 30 ℃, after reacting 5 h, uses methanol wash three times, 80 ℃ of dryings, obtain mesoporous silicon oxide (mSiO
2) coating ternary anode material for lithium-ion batteries, i.e. Li (Ni
xco
ymn
1-x-y) O
2/ mSiO
2.
Embodiment 2:
(1) by 0.02 mol Li (Ni
xco
ymn
1-x-y) O
2disperse 3 h in 10 ml deionized water for ultrasonic;
(2) 0.005 mol CTAB is disperseed to 1 h in 10 ml deionized water for ultrasonic;
(3) slurry step (1) obtained mixes with the mixed solution that step (2) obtains, and adds ammoniacal liquor, and regulating pH is 13;
(4) add the TEOS of 0.012 mol in the mixed liquor of step (3) gained, divide three steps to add, add 0.004 mol TEOS every 0.5 h, temperature is 50 ℃, after reacting 24 h, use methanol wash three times, 100 ℃ of dryings, obtain mesoporous silicon oxide and coat ternary anode material for lithium-ion batteries, i.e. Li (Ni
xco
ymn
1-x-y) O
2/ mSiO
2.
Embodiment 3:
(1) by 0.02 mol Li (Ni
xco
ymn
1-x-y) O
2disperse 5 h in 10 ml deionized water for ultrasonic;
(2) 0.01 mol CTAB is disperseed to 2 h in 10 ml deionized water for ultrasonic;
(3) slurry step (1) obtained mixes with the mixed solution that step (2) obtains, and adds ammoniacal liquor, and regulating pH is 10;
(4) add the TEOS of 0.012 mol in the mixed liquor of step (3) gained, divide three steps to add, add 0.004 mol TEOS every 0.5 h, temperature is 80 ℃, after reacting 48 h, use methanol wash three times, 120 ℃ of dryings, obtain mesoporous silicon oxide and coat ternary anode material for lithium-ion batteries, i.e. Li (Ni
xco
ymn
1-x-y) O
2/ mSiO
2.
Embodiment 4:
(1) by 0.02 mol Li (Ni
xco
ymn
1-x-y) O
2disperse 0.5 h in 10 ml deionized water for ultrasonic;
(2) 0.004 mol CTAB is disperseed to 0.5 h in 10 ml deionized water for ultrasonic;
(3) slurry step (1) obtained mixes with the mixed solution that step (2) obtains, and adds ammoniacal liquor, and regulating pH is 8;
(4) add the TEOS of 0.012 mol in the mixed liquor of step (3) gained, divide five steps to add, add 0.0024 mol TEOS every 0.5 h, temperature is 30 ℃, after reacting 5 h, use methanol wash three times, 80 ℃ of dryings, obtain mesoporous silicon oxide and coat ternary anode material for lithium-ion batteries, i.e. Li (Ni
xco
ymn
1-x-y) O
2/ mSiO
2.
Embodiment 5: the present embodiment as different from Example 1: TEOS is 0.004 mol in step (4).
Embodiment 6: the present embodiment as different from Example 1: TEOS is 0.016 mol in step (4).
Embodiment 7: the present embodiment as different from Example 1: TEOS is 0.02 mol in step (4).
Above-described embodiment of the present invention, do not form limiting the scope of the present invention.Any modification of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in claim protection range of the present invention.
Claims (9)
1. lithium ion battery composite cathode material, it is characterized in that: described composite positive pole is by mesoporous silicon oxide and Li (Ni
xco
ymn
1-x-y) O
2form, and the meso-porous titanium dioxide silicon layer is coated on Li (Ni
xco
ymn
1-x-y) O
2surface.
2. lithium ion battery composite cathode material as claimed in claim 1, is characterized in that, described composite positive pole is micron order.
3. the preparation method of lithium ion battery composite cathode material is characterized in that comprising the following steps:
(1) by Li (Ni
xco
ymn
1-x-y) O
2in solvent, disperse;
(2) softex kw is disperseed in solvent;
(3) mixed solution that slurry step (1) obtained and step (2) obtain is by Li (Ni
xco
ymn
1-x-y) O
2with the softex kw mol ratio be that 1～5:1 mixes, and add aqueous slkali, disperse;
(4) adding mol ratio in the mixed liquor of step (3) gained is that the tetraethoxysilane of 0.5～5 times of softex kw is reacted, and washing is dry, obtains mesoporous silicon oxide and coats ternary anode material for lithium-ion batteries, i.e. Li (Ni
xco
ymn
1-x-y) O
2/ mesoporous silicon oxide.
4. preparation method as claimed in claim 3 is characterized in that:
Li (Ni described in step (1)
xco
ymn
1-x-y) O
2for spherical or near-spherical powder granule, x in formula<1, y<1, x+y<1;
Described Li (Ni
xco
ymn
1-x-y) O
2particle diameter is 3～15 μ m;
Be separated into ultrasonic dispersion or magnetic agitation described in step (1) are disperseed;
Preferably, the jitter time described in step (1) is 0.5～5 h;
Preferably, the solvent described in step (2) is deionized water and/or ethanol, particularly preferably deionized water.
5. preparation method as claimed in claim 3 is characterized in that:
Be separated into ultrasonic dispersion described in step (2);
Preferably, the jitter time described in step (2) is 0.25 h～3 h;
Preferably, the solvent described in step (2) is deionized water and/or ethanol, particularly preferably deionized water.
6. preparation method as claimed in claim 3, it is characterized in that: step (1) is identical with the solvent species described in step (2).
7. preparation method as claimed in claim 3, is characterized in that: the Li (Ni described in step (3)
xco
ymn
1-x-y) O
2with the mol ratio of softex kw be 1～5:1.
8. preparation method as claimed in claim 3 is characterized in that:
The combination that alkali described in step (3) is a kind of in ammoniacal liquor, NaOH, potassium hydroxide or at least two kinds, and to regulate pH be 8～13;
Be separated into ultrasonic dispersion described in step (3); Preferably, the jitter time described in step (3) is 0.25 h～1 h.
9. preparation method as claimed in claim 3 is characterized in that:
The mol ratio of the softex kw described in step (4) and tetraethoxysilane is 1:0.5～5;
The described tetraethoxysilane method that adds of step (4) adds for minute 3～5 steps, every step interval 0.5～2 h;
The described reaction time of step (4) is 5～48 h;
The described reaction temperature of step (4) is 30～80 ℃;
The mixing that the described cleaning solvent of step (4) is a kind of in water, ethanol, acetone, methyl alcohol, oxolane, benzene, toluene or at least two kinds, particularly preferably methyl alcohol;
The described baking temperature of step (4) is 80～120 ℃.
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|---|---|---|---|
| CN201310383480.XA CN103456943B (en) | 2013-08-29 | 2013-08-29 | Lithium ion battery composite cathode material and preparation method thereof |
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|---|---|---|---|
| CN201310383480.XA CN103456943B (en) | 2013-08-29 | 2013-08-29 | Lithium ion battery composite cathode material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN103456943A true CN103456943A (en) | 2013-12-18 |
| CN103456943B CN103456943B (en) | 2016-08-03 |
Family
ID=49739086
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124449A (en) * | 2014-08-04 | 2014-10-29 | 天津巴莫科技股份有限公司 | High-energy density nickel-series composite positive electrode material for lithium ion battery and preparation method of high-energy density nickel-series composite positive electrode material |
| CN106571455A (en) * | 2016-11-10 | 2017-04-19 | 上海纳米技术及应用国家工程研究中心有限公司 | Silver loaded mesoporous silicon oxide coated ternary cathode material, and preparation method and applications thereof |
| CN108598388A (en) * | 2018-03-23 | 2018-09-28 | 格林美（无锡）能源材料有限公司 | A kind of C/SiO2Coat lithium electricity tertiary cathode material and preparation method thereof |
| CN108899545A (en) * | 2018-06-26 | 2018-11-27 | 格林美（无锡）能源材料有限公司 | A kind of mesoporous core-shell structure surface cladding lithium electricity tertiary cathode material and preparation method thereof |
| CN109103446A (en) * | 2018-08-08 | 2018-12-28 | 欣旺达电子股份有限公司 | Silica coats nickelic presoma, modified high-nickel material and preparation method thereof |
| CN109494363A (en) * | 2018-11-07 | 2019-03-19 | 北京理工大学 | A kind of SiOxIn-situ modified NCM tertiary cathode material and preparation method thereof |
| CN109659511A (en) * | 2018-11-14 | 2019-04-19 | 五邑大学 | A kind of SiO2Coat tertiary cathode material and preparation method thereof |
| CN109980203A (en) * | 2019-03-29 | 2019-07-05 | 桂林理工大学 | The method for improving nickelic tertiary cathode material chemical property by silica/sodium modified synergic |
| CN109994725A (en) * | 2018-12-12 | 2019-07-09 | 彩虹集团新能源股份有限公司 | A kind of manufacturing method of the nickelic tertiary cathode material of hydrophobic type |
| CN113206236A (en) * | 2021-05-06 | 2021-08-03 | 合肥国轩高科动力能源有限公司 | Preparation method of NCM ternary positive electrode material with Yolk-shell structure and prepared material |
| CN114335500A (en) * | 2021-12-29 | 2022-04-12 | 湖北融通高科先进材料有限公司 | Nano-porous SiO 2-coated ternary cathode material and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834289A (en) * | 2010-04-28 | 2010-09-15 | 东莞新能源科技有限公司 | Preparation method of lithium-ion battery anode material with oxide coated on surface |
| WO2011081422A2 (en) * | 2009-12-31 | 2011-07-07 | 주식회사 에코프로 | Lithium composite oxide and a production method therefor |
| CN102602883A (en) * | 2012-03-13 | 2012-07-25 | 中国科学院山西煤炭化学研究所 | Preparation method of silica-coated iron oxide nano-core-shell structural material |
-
2013
- 2013-08-29 CN CN201310383480.XA patent/CN103456943B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011081422A2 (en) * | 2009-12-31 | 2011-07-07 | 주식회사 에코프로 | Lithium composite oxide and a production method therefor |
| CN101834289A (en) * | 2010-04-28 | 2010-09-15 | 东莞新能源科技有限公司 | Preparation method of lithium-ion battery anode material with oxide coated on surface |
| CN102602883A (en) * | 2012-03-13 | 2012-07-25 | 中国科学院山西煤炭化学研究所 | Preparation method of silica-coated iron oxide nano-core-shell structural material |
Non-Patent Citations (1)
| Title |
|---|
| 李龙: "锂离子电池镍钴锰三元正极材料的合成与改性研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》, no. 07, 15 July 2013 (2013-07-15), pages 042 - 1130 * |
Cited By (16)
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|---|---|---|---|---|
| CN104124449B (en) * | 2014-08-04 | 2016-05-11 | 天津巴莫科技股份有限公司 | Lithium ion battery is composite positive pole and preparation method with high-energy-density type nickel |
| CN104124449A (en) * | 2014-08-04 | 2014-10-29 | 天津巴莫科技股份有限公司 | High-energy density nickel-series composite positive electrode material for lithium ion battery and preparation method of high-energy density nickel-series composite positive electrode material |
| CN106571455A (en) * | 2016-11-10 | 2017-04-19 | 上海纳米技术及应用国家工程研究中心有限公司 | Silver loaded mesoporous silicon oxide coated ternary cathode material, and preparation method and applications thereof |
| CN106571455B (en) * | 2016-11-10 | 2019-01-18 | 上海纳米技术及应用国家工程研究中心有限公司 | A kind of silver-colored mesopore silicon oxide cladding tertiary cathode material of load and preparation method and application |
| CN108598388A (en) * | 2018-03-23 | 2018-09-28 | 格林美（无锡）能源材料有限公司 | A kind of C/SiO2Coat lithium electricity tertiary cathode material and preparation method thereof |
| CN108899545A (en) * | 2018-06-26 | 2018-11-27 | 格林美（无锡）能源材料有限公司 | A kind of mesoporous core-shell structure surface cladding lithium electricity tertiary cathode material and preparation method thereof |
| CN108899545B (en) * | 2018-06-26 | 2021-06-29 | 格林美（无锡）能源材料有限公司 | Mesoporous core-shell structure surface-coated lithium battery ternary cathode material and preparation method thereof |
| CN109103446B (en) * | 2018-08-08 | 2021-02-12 | 欣旺达电子股份有限公司 | Silicon oxide coated high-nickel precursor, modified high-nickel material and preparation method thereof |
| CN109103446A (en) * | 2018-08-08 | 2018-12-28 | 欣旺达电子股份有限公司 | Silica coats nickelic presoma, modified high-nickel material and preparation method thereof |
| CN109494363B (en) * | 2018-11-07 | 2021-05-14 | 北京理工大学 | SiO (silicon dioxide)xIn-situ modified NCM (N-butyl-N-methyl-N) ternary cathode material and preparation method thereof |
| CN109494363A (en) * | 2018-11-07 | 2019-03-19 | 北京理工大学 | A kind of SiOxIn-situ modified NCM tertiary cathode material and preparation method thereof |
| CN109659511A (en) * | 2018-11-14 | 2019-04-19 | 五邑大学 | A kind of SiO2Coat tertiary cathode material and preparation method thereof |
| CN109994725A (en) * | 2018-12-12 | 2019-07-09 | 彩虹集团新能源股份有限公司 | A kind of manufacturing method of the nickelic tertiary cathode material of hydrophobic type |
| CN109980203A (en) * | 2019-03-29 | 2019-07-05 | 桂林理工大学 | The method for improving nickelic tertiary cathode material chemical property by silica/sodium modified synergic |
| CN113206236A (en) * | 2021-05-06 | 2021-08-03 | 合肥国轩高科动力能源有限公司 | Preparation method of NCM ternary positive electrode material with Yolk-shell structure and prepared material |
| CN114335500A (en) * | 2021-12-29 | 2022-04-12 | 湖北融通高科先进材料有限公司 | Nano-porous SiO 2-coated ternary cathode material and preparation method and application thereof |
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|---|---|
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Application publication date: 20131218 Assignee: NANJING GUOXUAN BATTERY CO., LTD. Assignor: Hefei Guoxuan High-Tech Power Energy Co., Ltd. Contract record no.: 2017320000046 Denomination of invention: Lithium ion battery composite cathode material and preparation method thereof Granted publication date: 20160803 License type: Exclusive License Record date: 20170306 |