CN106920959A - A kind of lithium-rich manganese-based polynary positive pole material of monocrystalline and preparation method thereof - Google Patents
A kind of lithium-rich manganese-based polynary positive pole material of monocrystalline and preparation method thereof Download PDFInfo
- Publication number
- CN106920959A CN106920959A CN201510994882.2A CN201510994882A CN106920959A CN 106920959 A CN106920959 A CN 106920959A CN 201510994882 A CN201510994882 A CN 201510994882A CN 106920959 A CN106920959 A CN 106920959A
- Authority
- CN
- China
- Prior art keywords
- lithium
- soluble
- salt
- manganese
- carbonate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
-
- 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
Landscapes
- 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 relates to lithium-rich manganese-based polynary positive pole material of a kind of monocrystalline and preparation method thereof.The material molecule formula is xLi2MnO3·(1-x)LiMO2, wherein, 0<x<1, M is the combination of one or more in Mn, Ni, Co, Mg, Al.The preparation method is comprised the following steps：1）By element chemistry metering than weighing soluble nickel salt, soluble cobalt, soluble manganese salt, soluble magnesium salt, aluminum soluble salt dissolving in deionized water, the solution A that concentration of metal ions is 0.2 ~ 4mol/L is formed；2）The mixed aqueous solution B of configuration sodium carbonate and sodium acid carbonate, the wherein concentration of carbanion are 0.2 ~ 4mol/L；3）Solution A and B are added dropwise to beaker and are stirred continuously, and are precipitated 4 ~ 24h of ageing；4）Gained precipitation filtering, washing, drying obtains carbonate precursor；5）Carbonate precursor mixes after crushing ball milling with lithium-containing compound, through two-section calcining in oxygen-enriched atmosphere, so that it may obtain the tap density lithium-rich manganese-based polynary positive pole material of monocrystalline higher.Preparation process is simple of the invention, it is easy to industrialization, and prepared material crystal structure stabilization, energy density per unit volume metric density are high, have extended cycle life.
Description
Technical field
The invention belongs to lithium ion battery material technical field, and in particular to a kind of lithium-rich manganese-based polynary positive pole material xLi of monocrystalline2MnO3·(1-x)LiMO2And preparation method thereof.
Background technology
With the fast development of electric automobile, the requirement more and more higher to lithium-ion-power cell energy density.And be then the bottleneck place of limiting lithium ion cell energy density lifting as the positive electrode of important component.Therefore, it is desirable to improve the energy density of lithium-ion-power cell, its core is to develop discharge capacity novel anode material high.The positive electrode of existing most common commercialization has LiCoO2 、LiMn2O4、LiFePO4, Li-Ni-Co-O and Li-Ni-Mn-Co-O materials, the actual discharge capacity of these materials is not less than 200mAh/g, it is difficult to meet the demand of high capacity cell.And the lithium-rich manganese-based xLi for occurring in recent years2MnO3·(1-x)LiMO2Material is due to high power capacity（Actual discharge capacity is more than 250mAh/g）, high-tension feature and turn into the focus of domestic and international research and development.But, the lithium-rich manganese base material being conventionally synthesized is typically all that this pattern is unfavorable for the roll-in and preparation of electrode slice, and causes its tap density relatively low by a second particle for little particle aggregation（It is usually no more than 2.0 g/cm3）.This significantly limit practical application of the lithium-rich manganese-based multicomponent material in power lithium-ion battery.Therefore, in the urgent need to developing that a kind of tap density is high, excellent electrochemical performance lithium-rich manganese-based multicomponent material and preparation method thereof to be adapting to the demand of large-scale commercial application.
The content of the invention
An object of the present invention is that a kind of tap density of offer is high, the lithium-rich manganese-based polynary positive pole material of monocrystalline of simultaneous electrochemical function admirable.The molecular formula of the material is xLi2MnO3·(1-x)LiMO2, wherein, 0<x<1, M is the combination of one or more in Mn, Ni, Co, Mg, Al.
It is another object of the present invention to provide the preparation method of the lithium-rich manganese-based multicomponent material of the monocrystalline, comprise the following steps：
1）By element chemistry metering than weighing soluble nickel salt, soluble cobalt, soluble manganese salt, soluble magnesium salt, aluminum soluble salt dissolving in deionized water, the solution A that concentration of metal ions is 0.2 ~ 4mol/L is formed；
2）The mixed aqueous solution B of configuration sodium carbonate and sodium acid carbonate, the wherein concentration of carbanion are 0.2 ~ 4mol/L；
3）Solution A and B are added dropwise to by beaker using constant flow pump and are stirred continuously at 30 ~ 70 DEG C, ph is adjusted between 7.0 ~ 9.0 using ammoniacal liquor, continue to be aged 4 ~ 24h at being deposited in 30 ~ 70 DEG C after reaction completely；
4）Gained precipitation for several times, is dried using deionized water filtration washing at 100 DEG C, obtains carbonate precursor；
5）Carbonate precursor is well mixed after crushing 0.2 ~ 4h of ball milling with a certain amount of lithium-containing compound, in oxygen-enriched atmosphere 400 ~ 600 DEG C are heated to the programming rate of 0.1 ~ 6 DEG C/min, 4 ~ 6h of calcining at constant temperature, again 800 ~ 1200 DEG C are heated to the programming rate of 0.1 ~ 6 DEG C/min, 12 ~ 20h of calcining at constant temperature, room temperature is cooled to the cooling rate of 0.1 ~ 6 DEG C/min after the completion of calcining, the lithium-rich manganese-based polynary positive pole material of monocrystalline is finally given.
The step 1）In soluble nickel salt be one or more in nickel nitrate, nickel acetate, nickel sulfate；Soluble cobalt is one or more in cobalt nitrate, cobalt acetate, cobaltous sulfate；Soluble manganese salt is one or more in manganese nitrate, manganese acetate, manganese sulfate；Soluble magnesium salt is one or more in magnesium nitrate, magnesium acetate, magnesium sulfate；Aluminum soluble salt is one or more in alchlor, aluminum sulfate, aluminum nitrate.
The step 2）In the mole ratio of sodium carbonate and sodium acid carbonate be 0.3:~3:1.
The step 5）In lithium-containing compound be one or more in lithium hydroxide, lithium carbonate, lithium nitrate;Lithium-containing compound consumption is 1.03 ~ 1.12 times of stoichiometric proportion；Oxygen content in oxygen-enriched atmosphere is 20 ~ 100%（Volume fraction）.
The D50 of the prepared lithium-rich manganese-based multicomponent material of monocrystalline is distributed between 1 ~ 8 μm, and powder tap density is in 1.8 ~ 2.8 g/cm3。
The present invention obtains the tap density lithium-rich manganese-based multicomponent material of monocrystalline higher by adjusting forerunner's production procedure parameter, optimization calcine technology, while by the appropriate metal cation that adulterates, improving the cycle performance and high rate performance of material.
Preparation method process is simple of the present invention, easily controllable, good product consistency, are adapted to large-scale production.
Brief description of the drawings
Fig. 1 is the scanning electron microscope (SEM) photograph (SEM) of lithium-rich manganese-based multicomponent material prepared by embodiments of the invention 1.
Fig. 2 is the X-ray diffractogram (XRD) of lithium-rich manganese-based multicomponent material prepared by embodiments of the invention 2.
Fig. 3 is the first charge-discharge curve map of lithium-rich manganese-based multicomponent material prepared by embodiments of the invention 3.
Fig. 4 is cycle performance curve map of the lithium-rich manganese-based multicomponent material of the preparation of embodiments of the invention 4 under 1.0C.
Specific embodiment
Specific embodiment of the invention is further described below in conjunction with accompanying drawing.
Embodiment 1
Prepare sample 0.5Li2MnO3·0.5LiNi0.33Mn0.33Co0.33O2.Stoichiometrically weigh nickel sulfate, manganese sulfate and cobaltous sulfate to be dissolved in deionized water, form the solution A that concentration of metal ions is 0.5mol/L；The mixed solution B of configuration sodium carbonate and sodium acid carbonate, wherein sodium carbonate are 1 with the mol ratio of sodium acid carbonate:1, carbon acid ion concentration is 0.5mol/L；Solution A and B are added dropwise to by beaker using constant flow pump and are stirred continuously at 50 DEG C, ph values are adjusted using ammoniacal liquor and 7.5, after reaction completely are maintained, continue to be aged 6h at being deposited in 50 DEG C；Gained precipitation for several times, is dried at 100 DEG C in an oven using deionized water filtration washing, obtains carbonate precursor；The lithium hydroxide and carbonate precursor for weighing 1.05 times of stoichiometric proportion crush ball milling 0.5h, calcined in the atmosphere that oxygen volume content is 50%, 500 DEG C are heated to the programming rate of 3 DEG C/min, calcining at constant temperature 4h, again 1000 DEG C are heated to the programming rate of 1 DEG C/min, calcining at constant temperature 14h, room temperature is cooled to after the completion of calcining with the cooling rate of 1 DEG C/min, finally gives monocrystalline 0.5Li2MnO3·0.5LiNi0.33Mn0.33Co0.33O2.Its X-ray diffraction（XRD Fig. 1) is seen.
Embodiment 2
Prepare sample 0.5Li2MnO3·0.5LiNi0.45Mn0.45Mg0.1O2.Stoichiometrically weigh nickel acetate, manganese acetate and magnesium acetate to be dissolved in deionized water, form the solution A that concentration of metal ions is 2.0mol/L；The mixed solution B of configuration sodium carbonate and sodium acid carbonate, wherein sodium carbonate are 3 with the mol ratio of sodium acid carbonate:1, carbon acid ion concentration is 2.0mol/L；Solution A and B are added dropwise to by beaker using constant flow pump and are stirred continuously at 40 DEG C, ph values are adjusted using ammoniacal liquor and 8.0, after reaction completely are maintained, continue to be aged 24h at being deposited in 40 DEG C；Gained precipitation for several times, is dried at 100 DEG C in an oven using deionized water filtration washing, obtains carbonate precursor；The lithium nitrate and carbonate precursor for weighing 1.1 times of stoichiometric proportion crush ball milling 2.0h, calcined in the atmosphere that oxygen volume content is 35%, 450 DEG C are heated to the programming rate of 2 DEG C/min, calcining at constant temperature 5h, again 1200 DEG C are heated to the programming rate of 1 DEG C/min, calcining at constant temperature 10h, room temperature is cooled to after the completion of calcining with the cooling rate of 1 DEG C/min, finally gives monocrystalline 0.5Li2MnO3·0.5LiNi0.45Mn0.45Mg0.1O2.Its ESEM（SEM）See Fig. 2.
Embodiment 3
Prepare sample 0.4Li2MnO3·0.6LiNi0.32Mn0.32Co0.32Al0.03O2.Stoichiometrically weigh nickel nitrate, manganese nitrate, cobalt nitrate and aluminum nitrate to be dissolved in deionized water, form the solution A that concentration of metal ions is 1.5mol/L；The mixed solution B of configuration sodium carbonate and sodium acid carbonate, wherein sodium carbonate are 2 with the mol ratio of sodium acid carbonate:1, carbon acid ion concentration is 1.5mol/L；Solution A and B are added dropwise to by beaker using constant flow pump and are stirred continuously at 55 DEG C, ph values are adjusted using ammoniacal liquor and 8.0, after reaction completely are maintained, continue to be aged 10h at being deposited in 55 DEG C；Gained precipitation for several times, is dried at 100 DEG C in an oven using deionized water filtration washing, obtains carbonate precursor；The lithium carbonate and carbonate precursor for weighing 1.08 times of stoichiometric proportion crush ball milling 1.0h, calcined in the atmosphere that oxygen volume content is 70%, 550 DEG C are heated to the programming rate of 5 DEG C/min, calcining at constant temperature 5h, again 950 DEG C are heated to the programming rate of 2 DEG C/min, calcining at constant temperature 13h, room temperature is cooled to after the completion of calcining with the cooling rate of 3 DEG C/min, finally gives monocrystalline 0.4Li2MnO3·0.6LiNi0.32Mn0.32Co0.32Al0.03O2.With the material as positive active material, lithium piece be, to electrode assembling into button cell, between 2.0 ~ 4.8V, charge-discharge test to be carried out under 0.1C, the discharge capacity of material reaches 267mAh/g.Its initial charge/discharge curve is shown in Fig. 3.
Embodiment 4
Prepare sample 0.3Li2MnO3·0.7LiNi0.27Mn0.3Co0.3Al0.1Mg0.03O2.Stoichiometrically weigh nickel nitrate, manganese nitrate, cobalt nitrate, magnesium nitrate and aluminum nitrate to be dissolved in deionized water, form the solution A that concentration of metal ions is 3.0mol/L；The mixed solution B of configuration sodium carbonate and sodium acid carbonate, wherein sodium carbonate are 3 with the mol ratio of sodium acid carbonate:1, carbon acid ion concentration is 3.0mol/L；Solution A and B are added dropwise to by beaker using constant flow pump and are stirred continuously at 50 DEG C, ph values are adjusted using ammoniacal liquor and 8.3, after reaction completely are maintained, continue to be aged 8h at being deposited in 55 DEG C；Gained precipitation for several times, is dried at 100 DEG C in an oven using deionized water filtration washing, obtains carbonate precursor；The lithium carbonate and carbonate precursor for weighing 1.05 times of stoichiometric proportion crush ball milling 0.2h, calcined in the atmosphere that oxygen volume content is 90%, 500 DEG C are heated to the programming rate of 5 DEG C/min, calcining at constant temperature 5h, again 1000 DEG C are heated to the programming rate of 3 DEG C/min, calcining at constant temperature 15h, room temperature is cooled to after the completion of calcining with the cooling rate of 2 DEG C/min, finally gives monocrystalline 0.3Li2MnO3·0.7LiNi0.27Mn0.3Co0.3Al0.1Mg0.03O2.With the material as positive active material, lithium piece be that, to electrode assembling into button cell, capability retention of the material circulation after 40 weeks is up to 94.5% between 2.0 ~ 4.8V, under 1.0C.Its cycle performance curve is shown in Fig. 4.
Claims (5)
1. the lithium-rich manganese-based polynary positive pole material of a kind of monocrystalline, it is characterised in that the molecular formula of the material is xLi2MnO3 (1-x) LiMO2, wherein, 0<x<1, M is the combination of one or more in Mn, Ni, Co, Mg, Al.
2. a kind of preparation method of the lithium-rich manganese-based polynary positive pole material of the monocrystalline prepared described in claim 1, comprises the following steps：
1）By element chemistry metering than weighing soluble nickel salt, soluble cobalt, soluble manganese salt, soluble magnesium salt, aluminum soluble salt dissolving in deionized water, the solution A that concentration of metal ions is 0.2 ~ 4mol/L is formed；
2）The mixed aqueous solution B of configuration sodium carbonate and sodium acid carbonate, the wherein concentration of carbanion are 0.2 ~ 4mol/L；
3）Solution A and B are added dropwise to by beaker using constant flow pump and are stirred continuously at 30 ~ 70 DEG C, ph is adjusted between 7.0 ~ 9.0 using ammoniacal liquor, continue to be aged 4 ~ 24h at being deposited in 30 ~ 70 DEG C after reaction completely；
4）Gained precipitation for several times, is dried using deionized water filtration washing at 100 DEG C, obtains carbonate precursor；
5）Carbonate precursor is well mixed after crushing 0.2 ~ 4h of ball milling with a certain amount of lithium-containing compound, in oxygen-enriched atmosphere 400 ~ 600 DEG C are heated to the programming rate of 0.1 ~ 6 DEG C/min, 4 ~ 6h of calcining at constant temperature, again 800 ~ 1200 DEG C are heated to the programming rate of 0.1 ~ 6 DEG C/min, 12 ~ 20h of calcining at constant temperature, room temperature is cooled to the cooling rate of 0.1 ~ 6 DEG C/min after the completion of calcining, the lithium-rich manganese-based polynary positive pole material of monocrystalline is finally given.
3. preparation method as claimed in claim 2, it is characterised in that the step 1）In soluble nickel salt be one or more in nickel nitrate, nickel acetate, nickel sulfate；Soluble cobalt is one or more in cobalt nitrate, cobalt acetate, cobaltous sulfate；Soluble manganese salt is one or more in manganese nitrate, manganese acetate, manganese sulfate；Soluble magnesium salt is one or more in magnesium nitrate, magnesium acetate, magnesium sulfate；Aluminum soluble salt is one or more in alchlor, aluminum sulfate, aluminum nitrate.
4. preparation method as claimed in claim 2, it is characterised in that the step 2）Middle sodium carbonate is 0.3 with the mole ratio of sodium acid carbonate:~3:1.
5. preparation method as claimed in claim 2, it is characterised in that the step 5）In lithium-containing compound be one or more in lithium hydroxide, lithium carbonate, lithium nitrate；Lithium-containing compound consumption is 1.03 ~ 1.12 times of stoichiometric proportion；Oxygen content is 20% ~ 100% in oxygen-enriched atmosphere（Volume fraction）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994882.2A CN106920959A (en) | 2015-12-28 | 2015-12-28 | A kind of lithium-rich manganese-based polynary positive pole material of monocrystalline and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994882.2A CN106920959A (en) | 2015-12-28 | 2015-12-28 | A kind of lithium-rich manganese-based polynary positive pole material of monocrystalline and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106920959A true CN106920959A (en) | 2017-07-04 |
Family
ID=59454752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510994882.2A Pending CN106920959A (en) | 2015-12-28 | 2015-12-28 | A kind of lithium-rich manganese-based polynary positive pole material of monocrystalline and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106920959A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108598457A (en) * | 2018-04-23 | 2018-09-28 | 桑德集团有限公司 | A kind of monocrystalline lithium-rich manganese-based anode material and preparation method thereof, lithium ion battery |
| CN109537054A (en) * | 2018-11-26 | 2019-03-29 | 江西理工大学 | A kind of high-rate lithium-rich manganese-based anode material monocrystalline and preparation method thereof |
| CN111115714A (en) * | 2019-12-30 | 2020-05-08 | 北京机科国创轻量化科学研究院有限公司 | Micron-sized non-agglomerated primary particle lithium-rich manganese-based material and preparation method thereof |
| CN112786876A (en) * | 2021-03-02 | 2021-05-11 | 昆明理工大学 | Preparation method of lithium-rich lithium battery cathode material with single crystal structure |
| CN113823786A (en) * | 2021-09-30 | 2021-12-21 | 中国矿业大学(北京) | Modified lithium-rich manganese-based positive electrode material and preparation method thereof |
| CN115417464A (en) * | 2022-09-26 | 2022-12-02 | 桂林电子科技大学 | Lithium-rich manganese-based precursor, preparation method of positive electrode material, lithium ion battery and preparation method of lithium ion battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386389A (en) * | 2010-08-31 | 2012-03-21 | 机械科学研究总院先进制造技术研究中心 | High capacity cathode material of lithium ion battery and preparation method thereof |
| CN102881890A (en) * | 2012-10-15 | 2013-01-16 | 福建师范大学 | Method for preparing lithium-rich solid solution cathode material through oxidizing gas oxidation |
| CN103956479A (en) * | 2014-05-20 | 2014-07-30 | 天津理工大学 | Preparation method of spherical high-capacity lithium-rich positive electrode material |
| CN104347878A (en) * | 2014-08-15 | 2015-02-11 | 机械科学研究总院先进制造技术研究中心 | Preparation method of metallic oxide coated lithium-rich positive pole material |
| JP2015195185A (en) * | 2014-03-27 | 2015-11-05 | 東レ株式会社 | Method of manufacturing lithium-rich type positive electrode active material composite particle |
-
2015
- 2015-12-28 CN CN201510994882.2A patent/CN106920959A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386389A (en) * | 2010-08-31 | 2012-03-21 | 机械科学研究总院先进制造技术研究中心 | High capacity cathode material of lithium ion battery and preparation method thereof |
| CN102881890A (en) * | 2012-10-15 | 2013-01-16 | 福建师范大学 | Method for preparing lithium-rich solid solution cathode material through oxidizing gas oxidation |
| JP2015195185A (en) * | 2014-03-27 | 2015-11-05 | 東レ株式会社 | Method of manufacturing lithium-rich type positive electrode active material composite particle |
| CN103956479A (en) * | 2014-05-20 | 2014-07-30 | 天津理工大学 | Preparation method of spherical high-capacity lithium-rich positive electrode material |
| CN104347878A (en) * | 2014-08-15 | 2015-02-11 | 机械科学研究总院先进制造技术研究中心 | Preparation method of metallic oxide coated lithium-rich positive pole material |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108598457A (en) * | 2018-04-23 | 2018-09-28 | 桑德集团有限公司 | A kind of monocrystalline lithium-rich manganese-based anode material and preparation method thereof, lithium ion battery |
| CN109537054A (en) * | 2018-11-26 | 2019-03-29 | 江西理工大学 | A kind of high-rate lithium-rich manganese-based anode material monocrystalline and preparation method thereof |
| CN111115714A (en) * | 2019-12-30 | 2020-05-08 | 北京机科国创轻量化科学研究院有限公司 | Micron-sized non-agglomerated primary particle lithium-rich manganese-based material and preparation method thereof |
| CN112786876A (en) * | 2021-03-02 | 2021-05-11 | 昆明理工大学 | Preparation method of lithium-rich lithium battery cathode material with single crystal structure |
| CN113823786A (en) * | 2021-09-30 | 2021-12-21 | 中国矿业大学(北京) | Modified lithium-rich manganese-based positive electrode material and preparation method thereof |
| CN115417464A (en) * | 2022-09-26 | 2022-12-02 | 桂林电子科技大学 | Lithium-rich manganese-based precursor, preparation method of positive electrode material, lithium ion battery and preparation method of lithium ion battery |
| CN115417464B (en) * | 2022-09-26 | 2024-05-28 | 桂林电子科技大学 | Lithium-rich manganese-based precursor, preparation method of positive electrode material, lithium ion battery and preparation method of lithium ion battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110380024B (en) | Sodium transition metal oxide with P3 structure, preparation method thereof and sodium ion battery | |
| CN108123115B (en) | O2 configuration lithium battery positive electrode material and preparation method thereof | |
| CN104201337B (en) | Sodium doped lithium-rich manganese based cathode material for lithium ion battery and preparation method thereof | |
| CN115000399B (en) | Spherical-like sodium ion battery positive electrode material, preparation method thereof and sodium ion battery | |
| WO2015039490A1 (en) | Lithium-rich anode material and preparation method thereof | |
| CN104362295B (en) | A kind of lithium ion battery nickel-base anode material and preparation method thereof | |
| CN111785960B (en) | Vanadium pentoxide/rGO coated nickel cobalt lithium manganate positive electrode material and preparation method thereof | |
| CN106920959A (en) | A kind of lithium-rich manganese-based polynary positive pole material of monocrystalline and preparation method thereof | |
| CN103825016A (en) | Nickelic cathode material rich in lithium and preparation method thereof | |
| CN103606663B (en) | A kind of Multiplying-power lithium-rich composite anode material and preparation method thereof | |
| CN113540436A (en) | Tungsten ion doped high nickel gradient ternary positive electrode material and preparation method thereof | |
| CN102683645A (en) | Preparation method of layered lithium-rich manganese base oxide of positive material of lithium ion battery | |
| CN110323432A (en) | A kind of miscellaneous modification lithium-ion battery anode material of cation-anion co-doping and preparation method thereof | |
| CN105514373A (en) | Positive electrode material of high-capacity lithium ion battery and preparation method of positive electrode material | |
| CN112299487B (en) | All-manganese or high-manganese-based lithium-rich layered cathode material with disordered cations in layer and preparation method thereof | |
| CN103682319A (en) | Constant high temperature circulation NCM 523 (nickel cobalt manganese acid lithium) ternary material and preparation method thereof | |
| CN111916687A (en) | Cathode material, preparation method thereof and lithium ion battery | |
| WO2019075910A1 (en) | Lithium-enriched layered oxide material having phase structure gradiently changing in proportion and preparation method therefor | |
| CN113422033A (en) | Yttrium ion doped yttrium oxide coated modified lithium-rich manganese-based positive electrode material, preparation method and application | |
| CN105609758A (en) | Preparation method of rubdium- and cesium-doped lithium-rich ternary cathode material for lithium-ion battery | |
| CN106207158B (en) | The preparation method of rich lithium manganate cathode material for lithium | |
| CN106910887A (en) | A kind of lithium-rich manganese-based anode material, its preparation method and the lithium ion battery comprising the positive electrode | |
| CN110233261B (en) | Preparation method of single crystal ternary lithium battery positive electrode material and lithium ion battery | |
| CN108448109A (en) | A kind of stratiform lithium-rich manganese-based anode material and preparation method thereof | |
| CN110492095A (en) | A kind of lithium-rich manganese-based anode material of tin dope and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170704 |