CN105390667A - Method for preparing spherical lithium battery cathode material LiNixCoyAl1xyO2 based on normal distribution of aluminum concentration - Google Patents
Method for preparing spherical lithium battery cathode material LiNixCoyAl1xyO2 based on normal distribution of aluminum concentration Download PDFInfo
- Publication number
- CN105390667A CN105390667A CN201510915403.3A CN201510915403A CN105390667A CN 105390667 A CN105390667 A CN 105390667A CN 201510915403 A CN201510915403 A CN 201510915403A CN 105390667 A CN105390667 A CN 105390667A
- Authority
- CN
- China
- Prior art keywords
- nickel cobalt
- hour
- normal distribution
- aluminate
- lithium
- 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.)
- Granted
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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1391—Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- 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
-
- 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
-
- 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)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The present invention discloses a method for preparing a spherical lithium battery cathode material LiNixCoyAl1xyO2 based on normal distribution of aluminum concentration. The morphology of the LiNixCoyAl1xyO2 material prepared by the method is close to a sphere structure, and concentration of an aluminum element is normally distributed from a sphere center to a sphere shell. According to the method disclosed by the present invention, colloid is prepared by combining aluminum ions and hydroxy radicals, colloidal particles are dissolved under the action of strong base to form tetrahydroxy meta-aluminic acid radical ionic liquid. Precipitation is completed in a manner that tetrahydroxy meta-aluminic acid radicals are hydrolyzed to generate aluminum hydroxide, coprecipitation of the aluminum hydroxide and nickle and cobalt hydroxide can be implemented due to a low hydrolysis rate, and the hydrolysis rate of the aluminum hydroxide is controlled by PH, and the LiNixCoyAl1xyO2 spherical material of which aliminum concentration is normally distributed is formed. By the means of the dispersing effect of an organic medium 3-methyl-1-butanol, mixing of a lithium source and precursor particles at the molecule level is implemented under the heating condition and capacity per gram and cycling performance of the cathode material are greatly improved.
Description
Technical field
The present invention relates to a kind of is the method that ball-type anode material of lithium battery nickel cobalt lithium aluminate is prepared in normal distribution based on aluminum concentration.
Background technology
Eighties of last century, the successful research and development of Sony corporation of Japan lithium battery, have driven the development of lithium battery industry.The quality of lithium battery is light, and specific capacity is large, and the advantages such as memory-less effect, make it be applied in widely in the middle of various electronic portable device and electric motor car.Along with the development of society, people it is also proposed new requirement: fail safe is good, cycle performance is strong, quality volume is little while increasing the demand of lithium battery.Therefore lithium battery also updates and have passed through LiFePO4, cobalt acid lithium, lithium nickelate successively, the focus and emphasis of ternary material current research just.Ternary material is nickel cobalt lithium aluminate material (being called for short NCA) particularly, is the ternary material that in current industrialization, specific capacity is the highest.That reduce the ratio of cobalt element, production cost is reduced, simultaneously retaining the higher capacity of lithium nickelate, again reducing the decay of capacity, improve cycle performance.The method that nickel cobalt acid aluminium lithium is prepared at present comprises solid sintering technology, coprecipitation and thermal decomposition method etc.Coprecipitation is comparatively ripe, and wherein adopt NaOH as sedimentation agent, because the sinking speed of aluminium hydroxide is far above nickel hydroxide cobalt element, three is difficult to realize co-precipitation.For this problem, many patents proposes the model of nickel cobalt-aluminium nucleocapsid structure, and expection realizes coated to nickel cobalt precipitation housing of aluminium element, but due to the speed of aluminium element precipitation, easily has spheroid of one's own, and what be difficult to realize on core surface is evenly coated.The hydrolysis rate of aluminium hydroxide is controlled by PH, define the nickel cobalt acid aluminium lithium material that a kind of aluminum concentration is the structure of normal distribution, at the initial stage of precipitation, the degree of nickel cobalt nucleation is little, nucleus is more, the aluminum concentration now needed is less, along with the carrying out of sinking speed, nucleus growth speed is accelerated, need the concentration of aluminium element higher like this, in the precipitation later stage, nucleus growth speed is slower, the concentration of aluminium is also lower, the graded of aluminum concentration has met the growth rhythm of nucleus, the spheroid of special construction can be formed, improve more greatly gram volume and the cycle performance of positive electrode.
Summary of the invention
The preparation core technology of nickel cobalt lithium aluminate cathode material is nickel, cobalt, aluminium co-precipitation.Because the speed of the sedimentation of aluminium will much larger than nickel, cobalt precipitation.Select tetrahydroxy to close aluminate as aluminium source, rely on tetrahydroxy to close aluminate hydrolysis formation slowly aluminum hydroxide precipitation, complete the co-precipitation with nickel, cobalt salt.Controlled the hydrolysis rate of aluminium hydroxide by PH, define the nickel cobalt acid aluminium lithium material that a kind of aluminum concentration is the structure of normal distribution, the spheroid of special construction can be formed; Adopt organic molecule medium to replace water simultaneously, rely on warm-up movement in organic media, complete the batch mixing of molecule degree even, prepare the high and good cycle of gram volume, even particle size distribution LiNi
xco
yal
1-x-yo
2positive electrode.
Experiment of the present invention is achieved through the following technical solutions:
Be the method that ball-type anode material of lithium battery nickel cobalt lithium aluminate is prepared in normal distribution based on aluminum concentration, it is characterized in that, preparation process is as follows:
(1) tetrahydroxy closes aluminate ion liquid: compound concentration is than the aluminium ion aqueous solution and the hydroxyl aqueous solution that are 1:4; Using the aluminium ion aqueous solution as end liquid, by controlling the flow velocity of alkali, be that 300r/min stirs until generate alumine hydroxide colloid at rotating speed; In alumine hydroxide colloid, continuation drips highly basic, changes rotating speed into 200r/min, until colloid dissolves, transfer solution filters removal impurity and obtains tetrahydroxy conjunction aluminate ion liquid;
(2) ball-type nickel cobalt aluminium precursor preparation: by the nickel of solubility, cobalt salt according to mole proportioning, be mixed with the certain density aqueous solution, the tetrahydroxy adding set proportioning closes aluminate ion liquid; Under 40-60 DEG C of water bath condition, enter the ammoniacal liquor of 5mol/L to end drop, control PH is that 9 rear stoppings drip ammoniacal liquor; Drip the ammoniacal liquor that tetrahydroxy closes aluminate ion liquid, nickel cobalt salt metallic solution and 5mol/L, regulate PH with sodium hydroxide solution; The washing of ageing 5-12 hour, 50-80 DEG C of distilled water, dry, sieve and obtain nickel cobalt acid aluminium lithium hydroxide precursor;
(3) organic media batch mixing: by even for the lithium source hand operated mixing batch mixing of nickel cobalt lithium aluminate hydroxide precursor and 0.4256-0.4773 proportioning, low speed heating electric stirring after preliminary batch mixing, ensure that temperature is at 50-70 DEG C, instillation organic media is until material sample is low thick, batch mixing is even in media as well to make powder, reaches the fusion of molecule; When stopping stirring after material sample dry tack free, feeding, at 350-700 DEG C, is incubated 20-30 hour in oxidizing atmosphere, sieve obtained nickel cobalt lithium aluminate cathode material broken at hothouse.
PH is regulated with sodium hydroxide solution described in step (2), be a PH period of change according to four hours, experience six cycles altogether, PH is by 8-11, the hydrolysis rate of corresponding aluminium first increases rear reduction, and the concentration of corresponding aluminium first increases rear reduction, presents normal distribution, its constant interval: 0-4 hour, PH are 8; 4-8 hour, PH are 8.5; 8-12 hour, PH are 9; 8-12 hour, PH are 9.5; 12-16 hour, PH are 10; 16-20 hour, PH are 10.5; 20-24 hour, PH are 11.
Batch mixing medium described in step (3) is 3-methyl-1-butanol, and its consumption is 10-50%;
The flow velocity prioritizing selection 5g/min of the alkali described in step (1);
Nickel cobalt salt metallic solution flow velocity prioritizing selection 10.6g/min described in step (2);
The rate of addition prioritizing selection 39/min of the ammoniacal liquor described in step (2).
The humidity 20-39% of the hothouse described in step (3).
The present invention has following advantage and effect relative to prior art: the structural inhomogeneity that can solve nickel cobalt-aluminium nucleocapsid structure, the sphere structure that aluminum concentration is normal distribution can be formed, realize mixing in molecule degree with lithium source, improve capacity and the cyclicity of material largely.
Accompanying drawing explanation
Fig. 1 is the scanning electron microscope (SEM) photograph of the nickel cobalt lithium aluminate that embodiment 1 obtains.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
embodiment 1
(1) with ten thousand/balance precise aluminum soluble salt and solubility highly basic, according to molar ratio 1:4, isocyatic aqueous solution 2mol/L is prepared.Using the soluble aluminum salting liquid of 2mol/L as end liquid, controlled the flow velocity 5g/min of highly basic by flowmeter, stir until there is alumine hydroxide colloid under 300r/min condition, now the consumption of highly basic is 3/4ths of total amount; Under 200r/min stirring at low speed, continue to drip remaining highly basic until colloid all transfers settled solution in alumine hydroxide colloid, obtained 4mol/L tetrahydroxy closes aluminate ion liquid 20 liters;
(2) ball-type nickel cobalt aluminium precursor preparation: be 80:15 according to mole proportioning by the nickel of solubility, cobalt salt, is mixed with the certain density aqueous solution, adds set proportioning dilution (ratio of nickel cobalt aluminium is 80:15:5) tetrahydroxy and close aluminate solution; Under 60 DEG C of water bath condition, in the reactors of 60 liters, add liquid at the bottom of 6L, the ammoniacal liquor of instillation 5mol/L, control PH is 9; 9 are stabilized at PH, drip the sodium hydroxide solution that tetrahydroxy closes aluminate ion liquid, nickel cobalt salt metallic solution, ammoniacal liquor and 4mol/L simultaneously, flow velocity is followed successively by: 5g/min, 10.6g/min, 39/min, controlling rotating speed is that 500r/min(sodium hydroxide solution regulates PH) ensure: 0-4 hour, PH are 8; 4-8 hour, PH are 8.5; 8-12 hour, PH are 9; 8-12 hour, PH are 9.5; 12-16 hour, PH are 10; 16-20 hour, PH are 10.5; 20-24 hour, PH are 11, ageing 12 hours, and the washing of 60 DEG C of distilled water is 8 to PH, dry, sieving obtains nickel cobalt acid aluminium lithium hydroxide precursor;
(3) organic media batch mixing: by nickel cobalt acid aluminium lithium hydroxide precursor and the lithium carbonate mixing hand operated mixing batch mixing of 0.4357 proportioning, add the 3-methyl-1-butanol of 30% until material sample is low thick, at 200r/min low speed heating electric stirring; When stopping stirring after material sample dry tack free, according to heating rate 2 DEG C/min, in Muffle furnace, according to sintering curre 350 DEG C (being incubated 2 hours) ~ 500 DEG C (being incubated 12 hours) ~ 700 DEG C (being incubated 20 hours), oxygen flow is 0.6L/min, broken at the hothouse of humidity 20-39%, cross 300 mesh sieves, obtain nickel cobalt acid aluminium lithium material.
The testing result of product is as follows:
Table one: chemical composition analysis (analyzing by plasmatron spectrographic analysis method)
Table two: physical property
What conclusion can be obtained from table one? find out from table one, the error of the proportioning of nickel cobalt aluminium, in rational scope, successfully prepares nickel cobalt aluminium ternary precursor material; The particle size distribution of the present embodiment 1 preparation-obtained nickel cobalt lithium aluminate nickel cobalt acid aluminium lithium is moderate as can be seen from Table II, and tap density is higher, and initial capacity is high, good cycle.
embodiment 2
(1) with ten thousand/balance precise aluminum soluble salt and solubility highly basic, according to molar ratio 1:4, isocyatic aqueous solution 2mol/L is prepared.Using the soluble aluminum salting liquid of 2mol/L as end liquid, the flow velocity being controlled highly basic by flowmeter is 5g/min, and stir until there is alumine hydroxide colloid under 300r/min condition, now the consumption of highly basic is 3/4ths of total amount; Under 200r/min stirring at low speed, continue to drip remaining highly basic until colloid all transfers settled solution in alumine hydroxide colloid, obtained 3mol/L tetrahydroxy closes aluminate ion 20 liters;
(2) ball-type nickel cobalt aluminium precursor preparation: be 85:10 according to mole proportioning by the nickel of solubility, cobalt salt, is mixed with the certain density aqueous solution, adds set proportioning dilution (ratio of nickel cobalt aluminium is 85:10:5) tetrahydroxy and close aluminate ion liquid; Under 60 DEG C of water bath condition, in the reactors of 60 liters, add liquid at the bottom of 6L, the ammoniacal liquor of instillation 5mol/L, control PH is 9; 9 are stabilized at PH, drip the sodium hydroxide solution that tetrahydroxy closes aluminate solution, nickel cobalt salt metallic solution, ammoniacal liquor and 4mol/L simultaneously, flow velocity is followed successively by: 5g/min, 10.6g/min, 39/min, controlling rotating speed is that 500r/min(sodium hydroxide solution regulates PH) ensure: 0-4 hour, PH are 8; 4-8 hour, PH are 8.5; 8-12 hour, PH are 9; 8-12 hour, PH are 9.5; 12-16 hour, PH are 10; 16-20 hour, PH are 10.5; 20-24 hour, PH are 11, ageing 12 hours, and the washing of 60 DEG C of distilled water is 8 to PH, dry, sieving obtains nickel cobalt lithium aluminate hydroxide precursor;
(3) organic media batch mixing: by the lithium carbonate mixing hand operated mixing batch mixing of nickel cobalt aluminium hydroxide presoma with 0.4772 proportioning, adds 25% acetone until material sample is low thick, at 200r/min low speed heating electric stirring; When stopping stirring after material sample dry tack free, according to heating rate 3 DEG C/min, in Muffle furnace, according to sintering curre 350 DEG C (being incubated 2 hours) ~ 500 DEG C (being incubated 15 hours) ~ 700 DEG C (being incubated 10 hours), oxygen flow is 0.8L/min, broken at the hothouse of humidity 20-39%, cross 300 mesh sieves, obtain nickel cobalt lithium aluminate material.
The testing result of product is as follows:
Table three: chemical composition analysis (analyzing by plasmatron spectrographic analysis method)
Table four: physical property
What conclusion can be obtained from table three? find out from table three, the error of the proportioning of nickel cobalt aluminium, in rational scope, successfully prepares nickel cobalt aluminium persursor material; The particle size distribution of the present embodiment 1 preparation-obtained nickel cobalt lithium aluminate nickel cobalt lithium aluminate is moderate as can be seen from Table IV, and tap density is higher, and initial capacity is high, good cycle.
Above-described embodiment is the present invention's preferably execution mode; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (7)
1. be the method that ball-type anode material of lithium battery nickel cobalt lithium aluminate is prepared in normal distribution based on aluminum concentration, it is characterized in that, preparation process is as follows:
(1) tetrahydroxy closes aluminate ion liquid: compound concentration is than the aluminium ion aqueous solution and the hydroxyl aqueous solution that are 1:4; Using the aluminium ion aqueous solution as end liquid, by controlling the flow velocity of alkali, be that 300r/min stirs until generate alumine hydroxide colloid at rotating speed; In alumine hydroxide colloid, continuation drips highly basic, changes rotating speed into 200r/min, until colloid dissolves, transfer solution filters removal impurity and obtains tetrahydroxy conjunction aluminate ion liquid;
(2) ball-type nickel cobalt aluminium precursor preparation: by the nickel of solubility, cobalt salt according to mole proportioning, be mixed with the certain density aqueous solution, the tetrahydroxy adding set proportioning closes aluminate ion liquid; Under 40-60 DEG C of water bath condition, enter the ammoniacal liquor of 5mol/L to end drop, control PH is that 9 rear stoppings drip ammoniacal liquor; Drip the ammoniacal liquor that tetrahydroxy closes aluminate ion liquid, nickel cobalt salt metallic solution and 5mol/L, regulate PH with sodium hydroxide solution; The washing of ageing 5-12 hour, 50-80 DEG C of distilled water, dry, sieve and obtain nickel cobalt acid aluminium lithium hydroxide precursor;
(3) organic media batch mixing: by even for the lithium source hand operated mixing batch mixing of nickel cobalt lithium aluminate hydroxide precursor and 0.4256-0.4773 proportioning, low speed heating electric stirring after preliminary batch mixing, ensure that temperature is at 50-70 DEG C, instillation organic media is until material sample is low thick, batch mixing is even in media as well to make powder, reaches the fusion of molecule; When stopping stirring after material sample dry tack free, feeding, at 350-700 DEG C, is incubated 20-30 hour in oxidizing atmosphere, sieve obtained nickel cobalt lithium aluminate cathode material broken at hothouse.
2. according to claim 1 a kind of be the method that ball-type anode material of lithium battery nickel cobalt lithium aluminate is prepared in normal distribution based on aluminum concentration, it is characterized in that: described in step (2), regulate PH with sodium hydroxide solution, be a PH period of change according to four hours, experience six cycles altogether, PH is by 8-11, and the hydrolysis rate of corresponding aluminium first increases rear reduction, the concentration of corresponding aluminium first increases rear reduction, present normal distribution, its constant interval: 0-4 hour, PH are 8; 4-8 hour, PH are 8.5; 8-12 hour, PH are 9; 8-12 hour, PH are 9.5; 12-16 hour, PH are 10; 16-20 hour, PH are 10.5; 20-24 hour, PH are 11.
3. according to claim 1 a kind of be the method for ball-type anode material of lithium battery nickel cobalt lithium aluminate prepared by normal distribution based on aluminum concentration, it is characterized in that: the batch mixing medium described in step (3) is 3-methyl-1-butanol, its consumption is 10-50%.
4. according to claim 1 a kind of be the method that ball-type anode material of lithium battery nickel cobalt lithium aluminate is prepared in normal distribution based on aluminum concentration, it is characterized in that: the flow velocity prioritizing selection 5g/min of the alkali described in step (1).
5. according to claim 1 a kind of be the method that ball-type anode material of lithium battery nickel cobalt lithium aluminate is prepared in normal distribution based on aluminum concentration, it is characterized in that: the nickel cobalt salt metallic solution flow velocity prioritizing selection 10.6g/min described in step (2).
6. according to claim 1 a kind of be the method that ball-type anode material of lithium battery nickel cobalt lithium aluminate is prepared in normal distribution based on aluminum concentration, it is characterized in that: the rate of addition prioritizing selection 39/min of the ammoniacal liquor described in step (2).
7. according to claim 1 a kind of be the method that ball-type anode material of lithium battery nickel cobalt lithium aluminate is prepared in normal distribution based on aluminum concentration, it is characterized in that: the humidity 20-39% of the hothouse described in step (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510915403.3A CN105390667B (en) | 2015-12-14 | 2015-12-14 | A kind of method that ball-type anode material of lithium battery nickel cobalt lithium aluminate is prepared in normal distribution based on aluminum concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510915403.3A CN105390667B (en) | 2015-12-14 | 2015-12-14 | A kind of method that ball-type anode material of lithium battery nickel cobalt lithium aluminate is prepared in normal distribution based on aluminum concentration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105390667A true CN105390667A (en) | 2016-03-09 |
| CN105390667B CN105390667B (en) | 2018-03-30 |
Family
ID=55422710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510915403.3A Active CN105390667B (en) | 2015-12-14 | 2015-12-14 | A kind of method that ball-type anode material of lithium battery nickel cobalt lithium aluminate is prepared in normal distribution based on aluminum concentration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105390667B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365211A (en) * | 2016-08-31 | 2017-02-01 | 宋程 | Preparation method of NCA precursor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094546A (en) * | 2013-01-25 | 2013-05-08 | 湖南邦普循环科技有限公司 | Method for preparing nickel-cobalt lithium aluminate as anode material of lithium ion battery |
| CN103296263A (en) * | 2012-12-28 | 2013-09-11 | 深圳市天骄科技开发有限公司 | Preparation method of lithium-ion battery positive electrode material spherical nickel-cobalt-lithium aluminate |
| CN104300135A (en) * | 2014-09-18 | 2015-01-21 | 秦皇岛中科远达电池材料有限公司 | Nickel-rich concentration gradient type lithium nickel cobalt aluminum oxide positive pole material, preparation method thereof and lithium ion battery |
| CN104934595A (en) * | 2015-05-08 | 2015-09-23 | 广州锂宝新材料有限公司 | Methods for preparing nickel-cobalt-aluminum precursor material and nickel-cobalt-aluminum cathode material with gradient distribution of aluminum element |
-
2015
- 2015-12-14 CN CN201510915403.3A patent/CN105390667B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296263A (en) * | 2012-12-28 | 2013-09-11 | 深圳市天骄科技开发有限公司 | Preparation method of lithium-ion battery positive electrode material spherical nickel-cobalt-lithium aluminate |
| CN103094546A (en) * | 2013-01-25 | 2013-05-08 | 湖南邦普循环科技有限公司 | Method for preparing nickel-cobalt lithium aluminate as anode material of lithium ion battery |
| CN104300135A (en) * | 2014-09-18 | 2015-01-21 | 秦皇岛中科远达电池材料有限公司 | Nickel-rich concentration gradient type lithium nickel cobalt aluminum oxide positive pole material, preparation method thereof and lithium ion battery |
| CN104934595A (en) * | 2015-05-08 | 2015-09-23 | 广州锂宝新材料有限公司 | Methods for preparing nickel-cobalt-aluminum precursor material and nickel-cobalt-aluminum cathode material with gradient distribution of aluminum element |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365211A (en) * | 2016-08-31 | 2017-02-01 | 宋程 | Preparation method of NCA precursor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105390667B (en) | 2018-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110235292B (en) | Prussian blue cathode material with high sodium content, preparation method and application thereof, and sodium-ion battery | |
| CN106299347B (en) | Nickel cobalt aluminium ternary precursor and preparation method thereof and the positive electrode prepared and method | |
| CN106549150B (en) | A kind of preparation method of nickel manganese cobalt complex hydroxide and the reaction kettle for being used to prepare nickel manganese cobalt complex hydroxide | |
| CN110010889A (en) | A kind of nickelic positive electrode of high-pressure solid high stability and preparation method thereof and a kind of lithium ion battery | |
| CN108373175A (en) | Aluminium doped cobaltic-cobaltous oxide and its preparation method and application | |
| CN105810925B (en) | A kind of small particle nickel cobalt aluminum oxide and preparation method thereof | |
| CN108336349A (en) | A kind of preparation method of the cobalt nickel lithium manganate ternary material of nucleocapsid | |
| CN109244431B (en) | Nickel-cobalt-manganternary ternary anode material and its preparation method and application, lithium ion battery, electric car | |
| CN104733724A (en) | Positive electrode material for high-nickel lithium ionic secondary battery and preparation method thereof | |
| CN101229928B (en) | Method for preparing spherical nickel-cobalt lithium manganate material | |
| CN104779383B (en) | A kind of preparation method of high specific energy anode material for lithium ion battery | |
| CN109179518B (en) | Preparation method of high-density doped nickel cobalt hydroxide precursor | |
| CN107265520A (en) | The preparation method and product of a kind of spherical nickel cobalt manganese persursor material | |
| CN110534732A (en) | A kind of preparation method of nickel-cobalt-manganese ternary persursor material | |
| CN105417585B (en) | The preparation method of heavy mangano-manganic oxide | |
| CN106684374A (en) | Preparation method for porous spherical lithium nickel cobalt manganate used as ternary positive electrode material of lithium ion battery | |
| CN108767216A (en) | Anode material for lithium-ion batteries and its synthetic method with the full concentration gradient of variable slope | |
| CN115072741B (en) | Prussian blue positive electrode material, continuous preparation method thereof and sodium ion battery | |
| CN113603153B (en) | Tungsten doped high nickel cobalt-free precursor and preparation method thereof | |
| CN109103446B (en) | Silicon oxide coated high-nickel precursor, modified high-nickel material and preparation method thereof | |
| CN108598467A (en) | The preparation method and alumina-coated nickel-cobalt lithium manganate cathode material and lithium ion battery of alumina-coated nickel-cobalt lithium manganate cathode material | |
| CN115490273B (en) | Method for continuously preparing ternary precursor with large specific surface and prepared precursor | |
| CN105810894A (en) | Multilayer coated structure lithium ion battery positive electrode material preparation method | |
| CN114291850A (en) | Method for controlling morphology of ternary precursor in preparation process of ternary precursor | |
| CN109574094A (en) | A kind of preparation method of stable particle size and its distribution nickel cobalt aluminium hydroxide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Five road high tech Zone 277000 Shandong city of Zaozhuang province Thailand Fuyuan Industrial Park, No. 319 Shandong Seiko Electronic Technology Co. Ltd. Applicant after: Shandong Seiko Electronic Technology Co.,Ltd. Address before: 277000 Thailand Industrial Park, Zaozhuang hi tech Zone, Xuecheng District, Shandong, Zaozhuang, 1 Applicant before: Shandong Seiko Electronic Technology Co.,Ltd. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 277800 No. x6699, Guangming Road, high tech Zone, Zaozhuang City, Shandong Province (north of the junction of Guangming Road and Huaxin Road) Patentee after: Shandong Jinggong Electronic Technology Co.,Ltd. Address before: Shandong Jinggong Electronic Technology Co., Ltd., No. 319, Fuyuan 5th Road, Thailand Industrial Park, Zaozhuang Hi tech Zone, Shandong 277000 Patentee before: Shandong Seiko Electronic Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address |