CN106784792A - Anode material for lithium-ion batteries and preparation method thereof - Google Patents
Anode material for lithium-ion batteries and preparation method thereof Download PDFInfo
- Publication number
- CN106784792A CN106784792A CN201611261852.1A CN201611261852A CN106784792A CN 106784792 A CN106784792 A CN 106784792A CN 201611261852 A CN201611261852 A CN 201611261852A CN 106784792 A CN106784792 A CN 106784792A
- Authority
- CN
- China
- Prior art keywords
- lithium
- ion batteries
- anode material
- preparation
- compound
- 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
- H01M4/50—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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/006—Compounds containing, besides nickel, two or more other elements, with the exception of oxygen or hydrogen
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
-
- 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
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
-
- 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
Abstract
The invention discloses a kind of anode material for lithium-ion batteries and preparation method thereof, the preparation method of anode material for lithium-ion batteries comprises the following steps；Configuration Polymer Solution, adds rare-earth compound, nickel cobalt manganese salt, Li source compound and oxalic acid/ammonium oxalate/ammonium binoxalate；Regulation pH, obtains mixed solution；By mixed solution drying, high-temperature roasting, anode material for lithium-ion batteries is obtained.Relative to prior art, the preparation method of anode material for lithium-ion batteries of the present invention is simple and easy to apply, with low cost, is adapted to the characteristics of producing in batches.The invention also discloses a kind of anode material for lithium-ion batteries, its chemical formula is Li1.4Ni0.15Co0.15Mn0.7‑xYxO2, 0≤x≤0.1 is evenly distributed with rare earth element, the characteristics of particle size distribution is narrower, can improve the cyclical stability of anode material for lithium-ion batteries, greatly improves the gram volume under its high magnification.
Description
Technical field
The invention belongs to new energy materialses field, it is more particularly related to a kind of have Ideal Cycle stability
With the anode material for lithium-ion batteries and preparation method thereof of the doping yttrium of gram volume.
Background technology
With the extensive use of smart electronicses product and electric vehicle, during energy density and continuation of the journey to energy-storage battery
Between requirement also more and more higher.But the specific discharge capacity of current lithium ion battery does not break through 200mAh/g, module energy
Density is 100~150Wh/kg, it is difficult to meet the use demand of people.Therefore, rich lithium material xLi2MnO3·(1-x)LiMO2With
By means of the specific capacity (being more than 250mAh/g) of its superelevation and working voltage platform (3.8V) and high thermal stability and green higher
Environmentally friendly the advantages of, causes the concern of various countries researchers.But, rich lithium material xLi2MnO3·(1-x)LiMO2There is also simultaneously
First charge-discharge coulombic efficiency is low, high rate performance is poor, capacity and the defect such as voltage attenuation is fast in cyclic process, seriously hinders it
Commercialization process.
Regarding to the issue above, presently mainly it is specifically divided into Surface coating from the consideration of material structure stability angle is improved
And element doping.Although Surface coating can alleviate rich lithium material under high blanking voltage with the side reaction of electrolyte, protected material
Material not by electrolytic corrosion, but cannot fundamentally solve rich lithium material in lithium ion deintercalation its layer structure occur collapse
Collapse and cause the drastically deterioration of battery performance；And Surface coating is also easy to the not thorough, environmental pollution of uneven thickness, cladding occur
The problems such as.Be introduced into zwitterion in material lattice by element doping, can fundamentally strengthen rich lithium material structural stability and
Ionic conductivity, while the larger cation doping of radius can also widen lithium ion diffusion admittance, so as to improve the electrification of material
Learn performance.
Common element doping is generally doping Mg2+、Al3+、Mo3+, the research of rare earth doped aspect is less.Someone adopts
With the rare earth doped elements La/cerium of solid phase method, but easily there is the uneven problem of raw material mixing in solid phase method, causes doped chemical point
Cloth heterogeneity；Somebody prepares the rich lithium material of rare earth doped elements La/samarium using combustion method, but the method is to utilize acetic acid
Or nitric acid nickel cobalt manganese lithium salts is lighted at high temperature with ethanol, this reaction is difficult control, is not suitable for industrialized production.
In view of this, it is necessory to provide a kind of preparation method of preferable anode material for lithium-ion batteries.
The content of the invention
It is an object of the invention to：The cyclical stability that overcomes existing rich lithium material to exist is poor, rare earth doped element when deposit
Doped chemical skewness, be not suitable for industrialized production the problems such as, there is provided one kind have Ideal Cycle stability and gram appearance
Anode material for lithium-ion batteries of doping yttrium of amount and preparation method thereof.
In order to realize foregoing invention purpose, the invention provides a kind of preparation method of anode material for lithium-ion batteries, its
Comprise the following steps：
(1) Polymer Solution is configured, rare-earth compound, nickel cobalt manganese salt, Li source compound and oxalic acid/oxalic acid is added
Ammonium/ammonium binoxalate；Regulation pH, obtains mixed solution；
(2) step (1) gained mixed solution obtains anode material for lithium-ion batteries through drying, high-temperature roasting.
Improved as the preparation method of anode material for lithium-ion batteries of the present invention is a kind of, the Polymer Solution includes Guar
In bean gum, hydroxyethyl cellulose, hydroxymethyl cellulose, white oil, lecithin, polyacrylic acid, polyethylene glycol one or more
Mixing.
Improved as the preparation method of anode material for lithium-ion batteries of the present invention is a kind of, the rare-earth compound is yttrium
Compound, lanthanum compound, samarium compound or cerium compound.
Improved as the preparation method of anode material for lithium-ion batteries of the present invention is a kind of, the yttrium compound be yittrium oxide,
One or more in yttrium nitrate, yttrium sulfate.
Improved as the preparation method of anode material for lithium-ion batteries of the present invention is a kind of, the nickel cobalt manganese salt is nickel cobalt manganese nitre
One or more in hydrochlorate, nickel cobalt mn sulphate, nickel cobalt manganese acetate.
Improved as the preparation method of anode material for lithium-ion batteries of the present invention is a kind of, the regulation pH to 6~8.
Improved as the preparation method of anode material for lithium-ion batteries of the present invention is a kind of, the regulation pH is by adding ammonia
Water is adjusted.
Improved as the preparation method of anode material for lithium-ion batteries of the present invention is a kind of, the drying is spray drying, spray
Spray amount is 600~1000ml/h, and inlet temperature is 170 ± 30 DEG C, 80 ± 20 DEG C of outlet temperature.
Improved as the preparation method of anode material for lithium-ion batteries of the present invention is a kind of, the temperature of the high-temperature roasting is
800~1000 DEG C.
In order to realize foregoing invention purpose, present invention also offers a kind of anode material for lithium-ion batteries, its chemical formula is
Li1.4Ni0.15Co0.15Mn0.7-xYxO2, 0 ＜ x≤0.1, its preparation method comprises the following steps：
(1) Polymer Solution is configured, rare-earth compound, nickel cobalt manganese salt, Li source compound and oxalic acid/oxalic acid is added
Ammonium/ammonium binoxalate；Regulation pH, obtains mixed solution；
(2) step (1) gained mixed solution obtains anode material for lithium-ion batteries through drying, high-temperature roasting.
Compared with prior art, anode material for lithium-ion batteries of the present invention and preparation method thereof has following features：
1) anode material for lithium-ion batteries of the present invention regulates and controls liquid phase doping rare earth element by macromolecule, mixes rare earth element
Miscellaneous to be distributed in positive electrode more uniformly, the positive electrode particle diameter distribution of gained is narrow, morphology controllable；
2) preparation method of anode material for lithium-ion batteries of the present invention is obtained containing rare earth element just using the step of seasoning one
Pole material, washes without filtering, is ground without with lithium salts, simple and easy to do with facilitating, with low cost, is adapted to industrial mass
The advantage of production；
3) anode material for lithium-ion batteries of the present invention is due to being doped with rare earth element, under its cyclical stability and high magnification
Gram volume is significantly increased, with excellent chemical property.
Brief description of the drawings
With reference to the accompanying drawings and detailed description, to anode material for lithium-ion batteries of the present invention and preparation method thereof and having
Beneficial effect is described in detail.
Fig. 1 is doped yttrium Li prepared by the embodiment of the present invention 1~31.4Ni0.15Co0.15Mn0.7-xYxO2The XRD of positive electrode
Spectrogram.
Fig. 2 is doped yttrium Li prepared by the embodiment of the present invention 1~31.4Ni0.15Co0.15Mn0.7-xYxO2Material 1C circulations are bent
Line.
Specific embodiment
In order that goal of the invention of the invention, technical scheme and Advantageous Effects become apparent from, with reference to embodiments,
The present invention will be described in further detail.It should be appreciated that the embodiment described in this specification is just for the sake of explanation
The present invention, being not intended to the restriction present invention, formula, ratio of embodiment etc. can suit measures to local conditions to make a choice and have no reality to result
Matter influences.
Embodiment 1
(1) weigh 0.8g hydroxyethyl celluloses to be dissolved in 50mL water, according to molecular formula Li1.4Ni0.15Co0.15Mn0.7- xYxO2(x=0) 0.015mol nickel nitrates, 0.015mol cobalt nitrates, 0.07mol manganese nitrate (manganese nitrate solutions are weighed successively respectively
For manganese carbonate is dissolved in concentrated nitric acid) add into hydroxyethyl cellulose solution, and add a certain amount of water to be diluted to total metal concentration
It is 1.5mol/L, stirs 2h.
(2) 0.14mol lithium hydroxides are weighed to be dissolved in 40mL water, the deionized water that oxalic acid 20g is dissolved in 100mL60 DEG C is weighed
In, while to lithium hydroxide and oxalic acid solution are added dropwise in step (1) resulting solution, oxalic acid solution rate of addition is 6mL/min, hydrogen
Lithia solution rate of addition is 2mL/min, and pH value of solution is controlled 7.5 or so by the way that 25% ammoniacal liquor is added dropwise during dropwise addition.Drop
Add and stir 20h at room temperature after finishing.
(3) spray drying inlet temperature is 170 DEG C, and spray rate is 700mL/h, and the dried powder that will be obtained is in Muffle furnace
In 500 DEG C roasting 5h, be down to grinding at room temperature 0.5h, then 900 DEG C roasting 10h, be down to grinding at room temperature 0.5h and obtain final samples
Product.
Embodiment 2
(1) weigh 0.8g hydroxyethyl celluloses to be dissolved in 50mL water, according to molecular formula Li1.4Ni0.15Co0.15Mn0.7- xYxO2(x=0.005) 0.015mol nickel nitrates, 0.015mol cobalt nitrates, 0.0695mol manganese nitrate (nitric acid are weighed successively respectively
Manganese solution is dissolved in concentrated nitric acid for manganese carbonate) and 0.00025mol yittrium oxide add into hydroxyethyl cellulose solution, and add
Water is diluted to total metal concentration for 1.5mol/L, stirs 2h.
(2) 0.14mol lithium hydroxides are weighed to be dissolved in 40mL water, the deionized water that oxalic acid 20g is dissolved in 100mL60 DEG C is weighed
In, while to lithium hydroxide and oxalic acid solution are added dropwise in step (1) resulting solution, oxalic acid solution rate of addition is 6mL/min, by force
Lithia solution rate of addition is 2mL/min, and pH value of solution is controlled 7.5 or so by the way that 25% ammoniacal liquor is added dropwise during dropwise addition.Drop
Add and stir 20h at room temperature after finishing.
(3) spray drying inlet temperature is 170 DEG C, and spray rate is 700mL/h, and the dried powder that will be obtained is in Muffle furnace
In 500 DEG C roasting 5h, be down to grinding at room temperature 0.5h, then 900 DEG C roasting 10h, be down to grinding at room temperature 0.5h and obtain final samples
Product.
Embodiment 3
(1) weigh 0.8g hydroxyethyl celluloses to be dissolved in 50mL water, according to molecular formula Li1.4Ni0.15Co0.15Mn0.7- xYxO2(x=0.01) 0.015mol nickel nitrates, 0.015mol cobalt nitrates, 0.069mol manganese nitrate (manganese nitrates are weighed successively respectively
Solution is dissolved in concentrated nitric acid for manganese carbonate) and 0.0005mol yittrium oxide add into hydroxyethyl cellulose solution, and add water dilute
It is 1.5mol/L to release to total metal concentration, stirs 2h.
(2) 0.14mol lithium hydroxides are weighed to be dissolved in 40mL water, the deionized water that oxalic acid 20g is dissolved in 100mL60 DEG C is weighed
In, while to lithium hydroxide and oxalic acid solution are added dropwise in step (1) resulting solution, oxalic acid solution rate of addition is 6mL/min, by force
Lithia solution rate of addition is 2mL/min, and pH value of solution is controlled 7.5 or so by the way that 25% ammoniacal liquor is added dropwise during dropwise addition.Drop
Add and stir 20h at room temperature after finishing.
(3) spray drying inlet temperature is 170 DEG C, and spray rate is 700mL/h, and the dried powder that will be obtained is in Muffle furnace
In 500 DEG C roasting 5h, be down to grinding at room temperature 0.5h, then 900 DEG C roasting 10h, be down to grinding at room temperature 0.5h and obtain final samples
Product.
The cell parameter and grain size of the gained sample of embodiment 1~3 are as shown in table 1.
Doped yttrium Li prepared by 1 embodiment of table 1~31.4Ni0.15Co0.15Mn0.7-xYxO2The cell parameter and grain size of material
Embodiment 4
(1) weigh 0.8g guar gums to be dissolved in 50mL water, according to molecular formula Li1.4Ni0.15Co0.15Mn0.7-xYxO2(x
=0.02) weighing 0.015mol nickel nitrates, 0.015mol cobalt nitrates successively respectively, (manganese nitrate solution is 0.068mol manganese nitrates
Manganese carbonate is dissolved in concentrated nitric acid) and 0.001mol yittrium oxide add into hydroxyethyl cellulose solution, and add water to be diluted to always
Metal concentration is 1.5mol/L, stirs 2h.
(2) 0.14mol lithium hydroxides are weighed to be dissolved in 40mL water, the deionized water that oxalic acid 20g is dissolved in 100mL60 DEG C is weighed
In, while to lithium hydroxide and oxalic acid solution are added dropwise in step (1) resulting solution, oxalic acid solution rate of addition is 6mL/min, by force
Lithia solution rate of addition is 2mL/min, and pH value of solution is controlled 7.5 or so by the way that 25% ammoniacal liquor is added dropwise during dropwise addition.Drop
Add and stir 20h at room temperature after finishing.
(3) spray drying inlet temperature is 170 DEG C, and spray rate is 700mL/h, and the dried powder that will be obtained is in Muffle furnace
In 500 DEG C roasting 5h, be down to grinding at room temperature 0.5h, then 900 DEG C roasting 10h, be down to grinding at room temperature 0.5h and obtain final samples
Product.
Embodiment 5
(1) weigh 0.8g polyethylene glycol to be dissolved in 50mL water, according to molecular formula Li1.4Ni0.15Co0.15Mn0.7-xYxO2(x
=0.03) weighing 0.015mol nickel nitrates, 0.015mol cobalt nitrates successively respectively, (manganese nitrate solution is 0.067mol manganese nitrates
Manganese carbonate is dissolved in concentrated nitric acid) and 0.0015mol yittrium oxide add into hydroxyethyl cellulose solution, and add water to be diluted to always
Metal concentration is 1.5mol/L, stirs 2h.
(2) 0.14mol lithium hydroxides are weighed to be dissolved in 40mL water, the deionized water that oxalic acid 20g is dissolved in 100mL60 DEG C is weighed
In, while to lithium hydroxide and oxalic acid solution are added dropwise in step (1) resulting solution, oxalic acid solution rate of addition is 6mL/min, by force
Lithia solution rate of addition is 2mL/min, and pH value of solution is controlled 7.5 or so by the way that 25% ammoniacal liquor is added dropwise during dropwise addition.Drop
Add and stir 20h at room temperature after finishing.
(3) spray drying inlet temperature is 170 DEG C, and spray rate is 700mL/h, and the dried powder that will be obtained is in Muffle furnace
In 500 DEG C roasting 5h, be down to grinding at room temperature 0.5h, then 900 DEG C roasting 10h, be down to grinding at room temperature 0.5h and obtain final samples
Product.
The preparation of positive plate and the assembling of button cell and test
It is prepared by positive pole：In mass ratio (80:10:10) weigh respectively positive electrode obtained in embodiment 1~3, acetylene black and
Binding agent (5%PVDF solution), solvent is NMP, is coated in current collector aluminum foil, 80 DEG C of baking 12h, and diameter is made with sheet-punching machine
The positive plate of 15mm.
Electrolyte：The LiPF6 of 1.1mol/L, solvent is vinyl carbonate and diethyl carbonate, and the two volume ratio is 1:1.
Negative pole：0.5mm thickness lithium pieces；Barrier film：Polypropylene micropore diaphragm.
Battery is assembled：In sequence：Anode cover, positive plate, electrolyte, barrier film, electrolyte, negative plate, shell fragment and negative pole
Shell, is assembled into 2016 type button cells (sealing machine compacting sealing, shaping) under argon atmosphere.
Using the new prestige battery test system in Shenzhen.Test parameter：Battery is tested at room temperature；It is 2.0- that test voltage is interval
4.8V, wherein specifying 1C=200mA/g.
Refer to Fig. 1, it can be seen that Li under same amount yttrium (Y) does not adulterate1.4Ni0.15Co0.15Mn0.7-xYxO2(x=0.0%,
0.5%th, XRD spectra spectral peak relative position 1.0%) is consistent, and Y adulterates and is not introduced into miscellaneous peak, 006/102,0,18/,110 two pairs of peaks
Division is obvious, and main peak is strong and sharp, illustrates that the material that not prepared by same amount Y doping has good layer structure, material crystalline degree
It is high.As shown in table 1, lattice parameters a and c has increase with the increase of Y dopings, and this shows that yttrium is true for cell parameter and grain size
Real doping is entered in material lattice, because Y3+Ionic radius is 0.09nm, Mn4+Ionic radius is 0.06nm, the big Y of radius3+
The less Mn of substitution ion radius4+, cell parameter can be increased, lithium ion diffusion admittance is widened, so as to improve rich lithium material multiplying power
Performance.
Refer to Fig. 2, it can be seen that under 1C multiplying powers, the rich lithium Li of 1.0%Y doping1.4Ni0.15Co0.15Mn0.7-xYxO2
With optimal gram volume and cyclical stability.
Compared with prior art, the lithium ion battery of the present invention rare earth element larger due to being doped with ionic radius, makes lithium
Ion diffusion admittance broadens, and improves the high rate performance of anode material for lithium-ion batteries, and regulate and control liquid by macromolecule of the present invention
Phase method and seasoning are mixed with and obtain, and can significantly improve the gram volume of the anode material for lithium-ion batteries of rare earth doped element
And cyclical stability.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula carries out appropriate change and modification.Therefore, the invention is not limited in specific embodiment disclosed and described above, to this
Some modifications and changes of invention should also be as falling into scope of the claims of the invention.Although additionally, this specification
In used some specific terms, but these terms are merely for convenience of description, do not constitute any limitation to the present invention.
Claims (10)
1. a kind of preparation method of anode material for lithium-ion batteries, it is characterised in that comprise the following steps：
(1) Polymer Solution is configured, rare-earth compound, nickel cobalt manganese salt, Li source compound and oxalic acid/ammonium oxalate/grass is added
Sour hydrogen ammonium；Regulation pH, obtains mixed solution；
(2) step (1) gained mixed solution obtains anode material for lithium-ion batteries through drying, high-temperature roasting.
2. the preparation method of anode material for lithium-ion batteries according to claim 1, it is characterised in that the macromolecule is molten
Liquid includes in guar gum, hydroxyethyl cellulose, hydroxymethyl cellulose, white oil, lecithin, polyacrylic acid, polyethylene glycol
Plant or several mixing.
3. the preparation method of anode material for lithium-ion batteries according to claim 1, it is characterised in that the rare earth element
Compound is yttrium compound, lanthanum compound, samarium compound or cerium compound.
4. the preparation method of anode material for lithium-ion batteries according to claim 3, it is characterised in that the yttrium compound
It is one or more in yittrium oxide, yttrium nitrate, yttrium sulfate.
5. the preparation method of anode material for lithium-ion batteries according to claim 1, it is characterised in that the nickel cobalt manganese salt
It is one or more in nickel cobalt manganese nitrate, nickel cobalt mn sulphate, nickel cobalt manganese acetate.
6. the preparation method of anode material for lithium-ion batteries according to claim 1, it is characterised in that the regulation pH to
6~8.
7. the preparation method of anode material for lithium-ion batteries according to claim 1, it is characterised in that the regulation pH is
Adjusted by adding ammoniacal liquor.
8. the preparation method of anode material for lithium-ion batteries according to claim 1, it is characterised in that the drying is spray
Mist is dried, and mist flow is 600~1000ml/h, and inlet temperature is 170 ± 30 DEG C, 80 ± 20 DEG C of outlet temperature.
9. the preparation method of anode material for lithium-ion batteries according to claim 1, it is characterised in that the high-temperature roasting
Temperature be 800~1000 DEG C.
10. a kind of anode material for lithium-ion batteries, it is characterised in that its chemical formula is Li1.4Ni0.15Co0.15Mn0.7-xYxO2, 0 ＜
X≤0.1, anode material for lithium-ion batteries anode material for lithium-ion batteries as described in any one in claim 1~9
Preparation method is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611261852.1A CN106784792A (en) | 2016-12-30 | 2016-12-30 | Anode material for lithium-ion batteries and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611261852.1A CN106784792A (en) | 2016-12-30 | 2016-12-30 | Anode material for lithium-ion batteries and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106784792A true CN106784792A (en) | 2017-05-31 |
Family
ID=58954000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611261852.1A Pending CN106784792A (en) | 2016-12-30 | 2016-12-30 | Anode material for lithium-ion batteries and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106784792A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493435A (en) * | 2018-05-31 | 2018-09-04 | 电子科技大学 | Anode material for lithium-ion batteries Li (Ni0.8Co0.1Mn0.1)1-xYxO2And preparation method |
| CN109768282A (en) * | 2018-12-24 | 2019-05-17 | 上海交通大学 | A kind of aqueous composite caking agent and its application |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647070A (en) * | 2013-12-07 | 2014-03-19 | 江西省钨与稀土产品质量监督检验中心（江西省钨与稀土研究院） | Preparation method of rare-earth samarium modified ternary anode material |
| CN103730653A (en) * | 2014-01-08 | 2014-04-16 | 山东精工电子科技有限公司 | Method for preparing rare earth element-doped nickel cobalt lithium manganate positive electrode material |
| CN104882599A (en) * | 2015-05-19 | 2015-09-02 | 华南理工大学 | Lithium-rich ternary cathode material for high-capacity lithium ion battery and preparation method of lithium-rich ternary cathode material |
-
2016
- 2016-12-30 CN CN201611261852.1A patent/CN106784792A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647070A (en) * | 2013-12-07 | 2014-03-19 | 江西省钨与稀土产品质量监督检验中心（江西省钨与稀土研究院） | Preparation method of rare-earth samarium modified ternary anode material |
| CN103730653A (en) * | 2014-01-08 | 2014-04-16 | 山东精工电子科技有限公司 | Method for preparing rare earth element-doped nickel cobalt lithium manganate positive electrode material |
| CN104882599A (en) * | 2015-05-19 | 2015-09-02 | 华南理工大学 | Lithium-rich ternary cathode material for high-capacity lithium ion battery and preparation method of lithium-rich ternary cathode material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493435A (en) * | 2018-05-31 | 2018-09-04 | 电子科技大学 | Anode material for lithium-ion batteries Li (Ni0.8Co0.1Mn0.1)1-xYxO2And preparation method |
| CN109768282A (en) * | 2018-12-24 | 2019-05-17 | 上海交通大学 | A kind of aqueous composite caking agent and its application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102110808B (en) | Method for preparing high-performance spherical lithium ion secondary battery cathode material | |
| CN101447566B (en) | Lithium ion battery positive electrode material with layered-spinel symbiotic structure and preparation method | |
| CN109256543B (en) | A kind of modified nickel cobalt manganese lithium aluminate cathode material and preparation method thereof | |
| CN103928672B (en) | A kind of positive electrode active material for lithium ion battery and preparation method thereof | |
| CN110642236B (en) | Zinc-based aqueous battery negative electrode material and preparation method thereof | |
| CN102237510B (en) | Positive active material and preparation method thereof | |
| CN107910529A (en) | A kind of ternary cathode material of lithium ion battery of manganese Base Metal organic frame compound cladding and preparation method thereof | |
| CN106257718B (en) | A kind of BN cladding is without cobalt Ni-Mn solid solution nickel hydroxide base anode materials | |
| CN103337604B (en) | Hollow spherical NiMn2O4 lithium ion battery cathode material and preparation method thereof | |
| CN106784726B (en) | Lithium vanadyl phosphate modified lithium-rich manganese-based layered lithium ion battery cathode material and preparation method thereof | |
| CN106602009A (en) | Lithium-rich positive electrode modified material of lithium ion battery and preparation method of lithium-rich positive electrode modified material | |
| CN107834050A (en) | A kind of lithium-enriched cathodic material of lithium ion battery and its improved method | |
| CN103606667A (en) | Preparation method for manganese solid solution anode material of lithium ion battery material | |
| CN110429268A (en) | A kind of modified boron doping lithium-rich manganese-based anode material and the preparation method and application thereof | |
| CN103682314A (en) | Coated spherical Li-rich cathode material and preparation method thereof | |
| CN113422033A (en) | Yttrium ion doped yttrium oxide coated modified lithium-rich manganese-based positive electrode material, preparation method and application | |
| CN104953110A (en) | Rich-lithium-manganese-based cathode material used for lithium ion battery of hollow structure and preparation method thereof | |
| CN108091854A (en) | A kind of high-voltage spinel type anode material for lithium-ion batteries of Anion-cation multiple dope and preparation method thereof | |
| CN103178252B (en) | A kind of anode material for lithium-ion batteries and preparation method thereof | |
| CN109301207A (en) | A kind of surface layer doping Ce3+And surface layer coats CeO2NCM tertiary cathode material and preparation method thereof | |
| CN106784795A (en) | A kind of spherical lithium manganate material of monocrystalline and preparation method thereof, positive electrode | |
| CN105428641A (en) | Method for preparing lithium manganese oxide cathode material by synergistically doping aluminum and sodium with high rate performance | |
| CN106784677A (en) | A kind of preparation of lithium-enriched cathodic material of lithium ion battery and improved method | |
| CN103078099A (en) | Anode material for lithium ion cell and preparation method thereof | |
| CN107204426A (en) | A kind of cobalt nickel oxide manganses lithium/titanate composite anode material for lithium of zirconium doping vario-property |
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 |
Application publication date: 20170531 |
|
| WD01 | Invention patent application deemed withdrawn after publication |