CN107546373A - A kind of nickel-cobalt lithium manganate material for the method and gained for coating nickle cobalt lithium manganate - Google Patents
A kind of nickel-cobalt lithium manganate material for the method and gained for coating nickle cobalt lithium manganate Download PDFInfo
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- CN107546373A CN107546373A CN201610523705.0A CN201610523705A CN107546373A CN 107546373 A CN107546373 A CN 107546373A CN 201610523705 A CN201610523705 A CN 201610523705A CN 107546373 A CN107546373 A CN 107546373A
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- 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 kind of method for coating nickle cobalt lithium manganate, and it coats the nickel-cobalt lithium manganate material of high nickel content using the nickel-cobalt lithium manganate material of low nickel-content；The invention also discloses one kind nickel-cobalt lithium manganate material as made from the above method.By coating decoration nickle cobalt lithium manganate surface, the higher initial capacity of nickle cobalt lithium manganate itself is maintained, cycle performance has obtained greatly improving, especially under high temperature high magnification, repeatedly the capacity attenuation of battery significantly reduces after circulation, reduces the side reaction of electrolyte and electrode material, prevents Ni2+, Co3+,Mn4+The dissolving of metal ion, so as to reduce the impedance of battery, substantially improve the chemical property of material；Simultaneously using the ternary material cladding nickel-cobalt lithium manganate material of low nickel, overcome and utilize impedance height of being practised physiognomy caused by conventional oxide cladding, Li in the past+Migration rate is few, the defects of the power-performance difference of material.
Description
Technical field
The present invention relates to technical field of lithium ion battery electrode, more particularly, to a kind of method for coating nickle cobalt lithium manganate and institute
The nickel-cobalt lithium manganate material obtained.
Background technology
Ternary layered Li [Ni-Co-Mn] O2Anode material for lithium-ion batteries, there is LiCoO2、LiNiO2、LiMnO2Three kinds of materials
The advantages of material：The layer structure that Co elements can be stablized, can effectively reduce cation mixing (Cation Mixing) phenomenon；Ni members
The gram volume that element can improve material plays；Mn elements can improve the security and stability of material, and cost is cheap；Ternary
Nickel-cobalt lithium manganate material due to its high energy density, good security performance, small toxicity and it is cheap the advantages that, it is existing
It is being widely used in lithium ion cell positive, and because market is for the demand of the material of high-energy-density, it will have very big
Development space；Ternary material, which has become, at present most development space, the EV power vehicles field lithium ion of most study
Cell positive material.
Due to the requirement to energy density, Li [Ni-Co-Mn] O2The ratio more and more higher of middle Ni elements, and the increase of Ni contents,
The multiplying power and cycle performance of material are deteriorated, and nickelic ternary NMC chemical formula can be seen that to balance chemical valence, nickelic ternary
The inside Ni has+2 and+trivalent simultaneously, and nickel content it is higher+trivalent Ni is more, therefore the crystal structure of nickelic ternary without pair
Title type ternary material is stable；Li structures are hexagonal crystal shape α-NaFeO2Stratiform, lithium ion occupy the 3a positions in (111) face,
Nickel, cobalt, manganese ion occupy 3b positions, and oxygen accounts for 6c positions, and during discharge and recharge, lithium ion can be formed in transition metal and oxygen
(NixCoyMn1-x-yO2) embedded between layer and abjection；Because the radius of bivalent nickel ion and the radius of lithium ion approach,
So nickel ion may occupy the 3a positions of lithium ion, cause cation mixing occupancy, so as to cause material electrochemical
The decline of energy；And Ni+It is unstable, easily with the electrolysis qualitative response in electrolyte, not only structure destruction, cause circulation to decline,
And produce interface impedance reduction cycle performance.
Mainly adulterated than ameliorative way at present and cladding, this method mainly consider that cladding improves, pass through coating decoration
Li[Ni-Co-Mn]O2Surface, maintain Li [Ni-Co-Mn] O2Itself higher initial capacity, cycle performance have obtained greatly
Big improvement, especially under high temperature high magnification, repeatedly the capacity attenuation of battery significantly reduces after circulation, and this is due to use
LiPF6During electrolyte, the presence of clad inhibits corrosion of the HF to electrode material in cyclic process, reduces electrolyte and electrode
The side reaction of material, prevents Ni2+, Co3+,Mn4+The dissolving of metal ion, so as to reduce the impedance of battery, substantially improve
The chemical property of material；But conventional oxide (Al2O3、ZrO2、TiO2, MgO and ZnO2Deng) cladding may
Cause the impedance of practising physiognomy of material, make Li+Migration rate is reduced, reduce the power-performance of material, and for high-nickel material in itself
Chemical property does not improve significantly.
The content of the invention
To solve the above problems, the invention provides one kind circulation conservation rate is high, good rate capability, material impedance of practising physiognomy is small, energy
Enough improve material Li+The method of the cladding nickle cobalt lithium manganate of migration rate and power-performance；
The present invention also provides a kind of nickel-cobalt lithium manganate material being worth by the above method.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of method for coating nickle cobalt lithium manganate, is made by following steps：
A) Ni is mixed by a certain percentage1-x-yMnxCoy(OH)2Presoma and lithium salts, make Ni1-x-yMnxCoy(OH)2With Li's
Mol ratio is 1：0.9~1.1, the deionized water of 1~4 times of presoma and lithium salts volume is added during mixing, mixture is at 500~950 DEG C
Lower sintering 5~15 hours, crushes after sintering, obtains D50For 5~12 μm of powder；
B) powder and Ni that will be obtained by step a1-a-bMnaCob(OH)2Presoma and lithium salts mix by a certain percentage, fully
Add the deionized water of 1~4 times of presoma and lithium salts volume after well mixed, during mixing, spray-drying mixt liquid, and
Sintered 5~15 hours at 600~1100 DEG C, the nickel-cobalt lithium manganate material after being made coated；Wherein make
Ni1-a-bMnaCob(OH)2Mol ratio with Li is 1：0.9~1.1.
Pass through coating decoration Li [Ni-Co-Mn] O2Surface, maintain Li [Ni-Co-Mn] O2Itself higher initial capacity,
Cycle performance has obtained greatly improving, and especially under high temperature high magnification, repeatedly the capacity attenuation of battery significantly reduces after circulation；
This is due to using LiPF6During electrolyte, the presence of clad inhibits corrosion of the HF to electrode material in cyclic process, reduces
The side reaction of electrolyte and electrode material, prevents Ni2+, Co3+,Mn4+The dissolving of metal ion, so as to reduce battery
Impedance, substantially improve the chemical property of material；Simultaneously using the ternary material cladding nickel-cobalt lithium manganate material of low nickel, overcome
It is conventional to utilize impedance height of being practised physiognomy caused by conventional oxide cladding, Li+Migration rate is few, the defects of the power-performance difference of material.
Preferably, step a), Ni1-x-yMnxCoy(OH)20.1≤x≤0.2 in presoma, 0.1≤y≤0.2.
Preferably, step b), Ni1-a-bMnaCob(OH)20.2≤a≤0.35 in presoma, 0.2≤b≤0.35.
Preferably, two kinds of presoma Ni1-x-yMnxCoy(OH)2With Ni1-a-bMnaCob(OH)2Mol ratio be 95~99：
5~1.
Preferably, lithium salts is LiOH, LiH2PO4、Li2CO3Or Li2One or more in O.
Carried out preferably, being sintered in step b) in air or oxygen atmosphere.
Preferably, presoma Ni in step a)1-x-yMnxCoy(OH)2Particle diameter be F50=5~10 μm.
A kind of nickel-cobalt lithium manganate material as made from the above method.
Therefore, the invention has the advantages that：
(1) this method can improve material Li+Migration rate and power-performance, improve the chemical property of material；
(2) nickel-cobalt lithium manganate material made from this method has that circulation conservation rate is high, good rate capability, and material impedance of practising physiognomy is small etc.
Advantage.
Brief description of the drawings
Fig. 1 is the cycle charge-discharge curve in the case of multiplying power 1C；
Fig. 2 is the discharge curve in the case of multiplying power 5C.
Embodiment
With reference to embodiment, the present invention is further illustrated.
Embodiment 1
A kind of method for coating nickle cobalt lithium manganate, is made by following steps：
A) Ni is mixed by a certain percentage1-x-yMnxCoy(OH)2Presoma and lithium salts, make Ni1-x-yMnxCoy(OH)2With Li's
Mol ratio is 1：0.9, the deionized water of presoma and lithium salts same volume is added during mixing, it is small that mixture sinters 5 at 500 DEG C
When, crush after sintering, obtain D50For 5~12 μm of powder；Ni1-x-yMnxCoy(OH)2X=0.1, y=0.1 in presoma,
Presoma Ni1-x-yMnxCiy(OH)2Particle diameter be D50=5 μm；
B) powder and Ni that will be obtained by step a1-a-bMnaCob(OH)2Presoma and lithium salts mix by a certain percentage, mixing
When add the deionized water of presoma and lithium salts same volume, after being sufficiently mixed uniformly, spray-drying mixt liquid, and at 600 DEG C
Sintered 5 hours in air atmosphere, the nickel-cobalt lithium manganate material after being made coated；Wherein make Ni1-a-bMnaCob(OH)2With
Li mol ratio is 1：0.9；Ni1-a-bMnaCob(OH)2A=0.2 in presoma, b=0.2；
Wherein, two kinds of presoma Ni1-x-yMnxCoy(OH)2With Ni1-a-bMnaCob(OH)2Mol ratio be 95：5；Using
Lithium salts be LiOH.
A kind of nickel-cobalt lithium manganate material as made from the above method.
Embodiment 2
A kind of method for coating nickle cobalt lithium manganate, is made by following steps：
A) Ni is mixed by a certain percentage1-x-yMnxCoy(OH)2Presoma and lithium salts, make Ni1-x-yMnxCoy(OH)2With Li's
Mol ratio is 1：1, the deionized water of 2 times of presoma and lithium salts volume is added during mixing, it is small that mixture sinters 10 at 750 DEG C
When, crush after sintering, obtain D50For 8 μm of powder；Ni1-x-yMnxCoy(OH)2X=0.15, y=0.15 in presoma,
Presoma Ni1-x-yMnxCoy(OH)2Particle diameter be D50=7 μm；
B) powder and Ni that will be obtained by step a1-a-bMnaCob(OH)2Presoma and lithium salts mix by a certain percentage, mixing
When add the deionized water of 2 times of presoma and lithium salts volume, after being sufficiently mixed uniformly, spray-drying mixt liquid, and at 850 DEG C
Sintered 10 hours in air atmosphere, the nickel-cobalt lithium manganate material after being made coated；Wherein make Ni1-a-bMnaCob(OH)2With
Li mol ratio is 1：1；Ni1-a-bMnaCob(OH)2A=0.25 in presoma, b=0.25；
Wherein, two kinds of presoma Ni1-x-yMnxCoy(OH)2With Ni1-a-bMnaCob(OH)2Mol ratio be 97：3；Using
Lithium salts be LiH2PO4。
A kind of nickel-cobalt lithium manganate material as made from the above method.
Embodiment 3
A kind of method for coating nickle cobalt lithium manganate, is made by following steps：
A) Ni is mixed by a certain percentage1-x-yMnxCoy(OH)2Presoma and lithium salts, make Ni1-x-yMnxCoy(OH)2With Li's
Mol ratio is 1：1, the deionized water of 2 times of presoma and lithium salts volume is added during mixing, it is small that mixture sinters 10 at 750 DEG C
When, crush after sintering, obtain D50For 8 μm of powder；Ni1-x-yMnxCoy(OH)2X=0.15, y=0.15 in presoma,
Presoma Ni1-x-yMnxCoy(OH)2Particle diameter be D50=7 μm；
B) powder and Ni that will be obtained by step a1-a-bMnaCob(OH)2Presoma and lithium salts mix by a certain percentage, mixing
When add the deionized water of 2 times of presoma and lithium salts volume, after being sufficiently mixed uniformly, spray-drying mixt liquid, and at 850 DEG C
Sintered 10 hours in air atmosphere, the nickel-cobalt lithium manganate material after being made coated；Wherein make Ni1-a-bMnaCob(OH)2With
Li mol ratio is 1：1；Ni1-a-bMnaCob(OH)2A=0.24 in presoma, b=0.24；
Wherein, two kinds of presoma Ni1-x-yMnxCoy(OH)2With Ni1-a-bMnaCob(OH)2Mol ratio be 96：4；Using
Lithium salts be Li2CO3。
A kind of nickel-cobalt lithium manganate material as made from the above method.
Embodiment 4
A kind of method for coating nickle cobalt lithium manganate, is made by following steps：
A) Ni is mixed by a certain percentage1-x-yMnxCoy(OH)2Presoma and lithium salts, make Ni1-x-yMnxCoy(OH)2With Li's
Mol ratio is 1：1, the deionized water of 4 times of presoma and lithium salts volume is added during mixing, it is small that mixture sinters 10 at 950 DEG C
When, crush after sintering, obtain D50For 8 μm of powder；Ni1-x-yMnxCoy(OH)2X=0.2, y=0.2 in presoma, it is preceding
Drive body Ni1-x-yMnxCoy(OH)2Particle diameter be D50=7 μm；
B) powder and Ni that will be obtained by step a1-a-bMnaCob(OH)2Presoma and lithium salts mix by a certain percentage, mixing
When add the deionized water of 4 times of presoma and lithium salts volume, after being sufficiently mixed uniformly, spray-drying mixt liquid, and at 800 DEG C
Sintered 10 hours in air atmosphere, the nickel-cobalt lithium manganate material after being made coated；Wherein make Ni1-a-bMnaCob(OH)2With
Li mol ratio is 1：1.05；Ni1-a-bMnaCob(OH)2A=1/3 in presoma, b=1/3；
Wherein, two kinds of presoma Ni1-x-yMnxCoy(OH)2With Ni1-a-bMnaCob(OH)2Mol ratio be 95：5；Using
Lithium salts be Li2O。
A kind of nickel-cobalt lithium manganate material as made from the above method.
Embodiment 5
A kind of method for coating nickle cobalt lithium manganate, is made by following steps：
A) Ni is mixed by a certain percentage1-x-yMnxCoy(OH)2Presoma and lithium salts, make Ni1-x-yMnxCoy(OH)2With Li's
Mol ratio is 1：1.1, the deionized water of 4 times of presoma and lithium salts volume is added during mixing, mixture sinters 15 at 950 DEG C
Hour, crushed after sintering, obtain D50For 12 μm of powder；Ni1-x-yMnxCoy(OH)2X=0.2, y=0.2 in presoma,
Presoma Ni1-x-yMnxCoy(OH)2Particle diameter be D50=10 μm；
B) powder and Ni that will be obtained by step a1-a-bMnaCob(OH)2Presoma and lithium salts mix by a certain percentage, mixing
When add the deionized water of 4 times of presoma and lithium salts volume, after being sufficiently mixed uniformly, spray-drying mixt liquid, and at 1100 DEG C
Sintered 15 hours in oxygen atmosphere, the nickel-cobalt lithium manganate material after being made coated；Wherein make Ni1-a-bMnaCob(OH)2With
Li mol ratio is 1：1.1；Ni1-a-bMnaCob(OH)2A=0.35 in presoma, b=0.35；
Wherein, two kinds of presoma Ni1-x-yMnxCoy(OH)2With Ni1-a-bMnaCob(OH)2Mol ratio be 99：1；Using
Lithium salts be LiH2PO4And Li2CO3Mol ratio is 0.5：1 mixing lithium salts.
A kind of nickel-cobalt lithium manganate material as made from the above method.
Performance test：
Using uncoated nickel-cobalt lithium manganate material made from step a in embodiment 4 as the first control group, and labeled as 1.；
With LiNi1/3Co1/3Mn1/3O2And LiNi0.6Co0.2Mn0.2O2Doping material is the second control group, and labeled as 2.；
Cladding nickel-cobalt lithium manganate material obtained by embodiment 4 represents the present invention, and labeled as 3..
The doping material of second control group is made by following technique：LiOH in molar ratio：Ni1/3Co1/3Mn1/3(OH)2：
Ni0.6Mn0.2Co0.2(OH)2=2.1:1:1 weighs LiOH, Ni1/3Co1/3Mn1/3(OH)2And Ni0.6Mn0.2Co0.2(OH)2, will claim
Good material is put into stainless steel, while is added and solid material volume ratio 4:1 deionized water, mixed material, treat that 8 is small
When uniformly mixing after, be pumped into spray dryer mess up, dry after material calcined 15 hours in oxygen or air at 950 DEG C, it is cold
But grinding sieving afterwards, obtains LiNi1/3Co1/3Mn1/3O2And LiNi0.6Co0.2Mn0.2O2Adulterate material.
Battery is tested to prepare and test：Active material：Carbon black：PVDF=93:3:4, add appropriate 1-METHYLPYRROLIDONE and mix
Slurry is made after conjunction, coated machine coating is made pole piece, is then assembled into experimental cell with barrier film, graphite cathode and electrolyte,
Test battery its charge/discharge capacity, high rate performance, cycle performance.
The performance test results：
As shown in Figure 1：Products therefrom is in 3-4.2V sections, 1C discharge and recharges, and reversible specific capacity is 1.=165mAh/g first,
2.=163mAh/g, 3.=155mAh；1.=76.5% 1500 times (1C/1C RT) circulates Posterior circle conservation rate, 2.=81.7%,
3.=88.5%；As shown in Fig. 2 multiplying power 5C electric discharges are 1.=83.79%, and 2.=98.51%, 3. 93.79%；As a result after explanation cladding
LiNi0.6Co0.2Mn0.2O2Positive electrode have with gram volume close before cladding, and circulate conservation rate and high rate performance it is all excellent
In uncoated and doping comparative sample.
Claims (8)
- A kind of 1. method for coating nickle cobalt lithium manganate, it is characterised in that be made by following steps：A) Ni is mixed by a certain percentage1-x-yMnxCoy(OH)2Presoma and lithium salts, make Ni1-x-yMnxCoy(OH)2With rubbing for Li You are than being 1：0.9~1.1, the deionized water of 1~4 times of presoma and lithium salts volume is added during mixing, mixture is at 500~950 DEG C Lower sintering 5~15 hours, crushes after sintering, obtains D50For 5~12 μm of powder；B) powder and Ni that will be obtained by step a1-a-bMnaCob(OH)2Presoma and lithium salts mix by a certain percentage, are sufficiently mixed After uniformly, the deionized water of 1~4 times of presoma and lithium salts volume is added during mixing, spray-drying mixt liquid, and 600~ Sintered 5~15 hours at 1100 DEG C, the nickel-cobalt lithium manganate material after being made coated；Wherein make Ni1-a-bMnaCob(OH)2With Li mol ratio is 1：0.9~1.1.
- A kind of 2. method for coating nickle cobalt lithium manganate according to claim 1, it is characterised in that：The step a), Ni1-x-yMnxCoy(OH)20.1≤x≤0.2 in presoma, 0.1≤y≤0.2.
- A kind of 3. method for coating nickle cobalt lithium manganate according to claim 1, it is characterised in that：The step b), Ni1-a-bMnaCob(OH)20.2≤a≤0.35 in presoma, 0.2≤b≤0.35.
- A kind of 4. method for coating nickle cobalt lithium manganate according to claim 1, it is characterised in that：Two kinds of described presomas Ni1-x-yMnxCoy(OH)2With Ni1-a-bMnaCob(OH)2Mol ratio be 95~99：5~1.
- A kind of 5. method for coating nickle cobalt lithium manganate according to claim 1, it is characterised in that：Described lithium salts be LiOH, Li2PO4、Li2CO3Or Li2One or more in O.
- A kind of 6. method for coating nickle cobalt lithium manganate according to claim 1, it is characterised in that：It is sintered in the step b) Carried out in air or oxygen atmosphere.
- A kind of 7. method for coating nickle cobalt lithium manganate according to claim 1, it is characterised in that：Presoma in the step a) Ni1-x-yMnxCoy(OH)2Particle diameter be D50=5~10 μm.
- A kind of 8. nickel-cobalt lithium manganate material, it is characterised in that：This kind of nickel-cobalt lithium manganate material is made as the method described in claim 1~7.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085845A (en) * | 2019-05-13 | 2019-08-02 | 中南大学 | A kind of nickel-base anode material and preparation method thereof with core-shell structure |
| CN112054172A (en) * | 2019-06-12 | 2020-12-08 | 江苏翔鹰新能源科技有限公司 | Preparation method of core-shell type high-nickel monocrystal nickel cobalt lithium manganate positive electrode material |
| CN113629241A (en) * | 2021-08-06 | 2021-11-09 | 合肥国轩高科动力能源有限公司 | Preparation method of core-shell structure cathode material, cathode material and lithium ion battery |
| CN113629240A (en) * | 2021-07-30 | 2021-11-09 | 江苏翔鹰新能源科技有限公司 | Single crystal lithium nickel cobalt manganese oxide positive electrode material and preparation method and application thereof |
| CN113753972A (en) * | 2021-10-13 | 2021-12-07 | 青岛大学 | Multi-metal oxide coated modified nickel-cobalt-manganese ternary cathode material and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751480A (en) * | 2011-04-18 | 2012-10-24 | 河南科隆集团有限公司 | Coated lithium-rich manganese base material and preparation method thereof |
| CN103236537A (en) * | 2013-04-12 | 2013-08-07 | 哈尔滨工业大学 | Lithium ion battery gradient core shell cathode material and synthetic method thereof |
| CN103928660A (en) * | 2014-04-30 | 2014-07-16 | 刘洋 | Preparation method of multi-element anode material with multi-level structure |
| CN103943822A (en) * | 2014-05-13 | 2014-07-23 | 南通瑞翔新材料有限公司 | Nickel-based positive active material of lithium ion secondary battery and preparation method thereof |
-
2016
- 2016-06-29 CN CN201610523705.0A patent/CN107546373A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751480A (en) * | 2011-04-18 | 2012-10-24 | 河南科隆集团有限公司 | Coated lithium-rich manganese base material and preparation method thereof |
| CN103236537A (en) * | 2013-04-12 | 2013-08-07 | 哈尔滨工业大学 | Lithium ion battery gradient core shell cathode material and synthetic method thereof |
| CN103928660A (en) * | 2014-04-30 | 2014-07-16 | 刘洋 | Preparation method of multi-element anode material with multi-level structure |
| CN103943822A (en) * | 2014-05-13 | 2014-07-23 | 南通瑞翔新材料有限公司 | Nickel-based positive active material of lithium ion secondary battery and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 杨铁军: "《产业专利分析报告（第23册）-电池》", 31 May 2014, 知识产权出版社 * |
| 高峰，任福正: "《药剂学实验》", 31 March 2015, 华东理工大学出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085845A (en) * | 2019-05-13 | 2019-08-02 | 中南大学 | A kind of nickel-base anode material and preparation method thereof with core-shell structure |
| CN112054172A (en) * | 2019-06-12 | 2020-12-08 | 江苏翔鹰新能源科技有限公司 | Preparation method of core-shell type high-nickel monocrystal nickel cobalt lithium manganate positive electrode material |
| CN113629240A (en) * | 2021-07-30 | 2021-11-09 | 江苏翔鹰新能源科技有限公司 | Single crystal lithium nickel cobalt manganese oxide positive electrode material and preparation method and application thereof |
| CN113629240B (en) * | 2021-07-30 | 2022-07-15 | 江苏翔鹰新能源科技有限公司 | Single crystal lithium nickel cobalt manganese oxide positive electrode material and preparation method and application thereof |
| CN113629241A (en) * | 2021-08-06 | 2021-11-09 | 合肥国轩高科动力能源有限公司 | Preparation method of core-shell structure cathode material, cathode material and lithium ion battery |
| CN113753972A (en) * | 2021-10-13 | 2021-12-07 | 青岛大学 | Multi-metal oxide coated modified nickel-cobalt-manganese ternary cathode material and preparation method and application thereof |
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Application publication date: 20180105 |