CN109592720A - Ternary precursor solution purification method - Google Patents
Ternary precursor solution purification method Download PDFInfo
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- CN109592720A CN109592720A CN201811409265.1A CN201811409265A CN109592720A CN 109592720 A CN109592720 A CN 109592720A CN 201811409265 A CN201811409265 A CN 201811409265A CN 109592720 A CN109592720 A CN 109592720A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/40—Complex oxides containing nickel and at least one other metal element
- C01G53/42—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2
- C01G53/44—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese
- C01G53/50—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2
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- 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
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- 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
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- 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
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Abstract
The present invention provides ternary precursor solution purification methods, this method first adjusts the pH of ternary precursor solution with oxalic acid, first time temperature programming after hydrogen peroxide will be added in treated solution again, then to second of temperature programming after solution progress first time filtering, finally by treated, solution carries out second being aged after filtering.Ternary precursor solution purification method provided by the present invention, it solves in the prior art, it is difficult to effectively exclude the problem of trace impurity interferes persursor material performance in raw material when preparing ternary precursor, every impurity content complies with the national standard requirements, purification process process of the invention is uncomplicated, low energy consumption for cost, is conducive to promote and apply.In purification process, after hydrogen peroxide heating filtering for the first time is added, then second of temperature programming is carried out, may advantageously facilitate the precipitation of microelement in solution, promote the degree of purification of solution.
Description
Technical field
The invention belongs to technical field of lithium ion, and in particular to ternary precursor solution purification method.
Background technique
Lithium ion battery is the best secondary accumulator battery of current comprehensive performance, since specific energy is high, have extended cycle life, put certainly
The features such as electric small, memory-less effect and good safety, be widely used in portable electronic device, electric car, electric bicycle,
The multiple fields such as military equipment, peak regulation energy storage and distributed energy storage.
Positive electrode is the critical material of lithium ion battery, largely determines the performance of battery.It is common just
Pole material has cobalt acid lithium, LiMn2O4, LiFePO4 and ternary material (LiNixCoyM1-x-yO2, M is Mn or Al).Ternary material tool
There are the advantages such as the cost more balanced, energy density, circulation and security performance, becomes the products such as electric car, electric bicycle
Main selection, especially in passenger car field, ternary material relies on its higher superiority of effectiveness, gradually surmount LiFePO4 and
LiMn2O4 becomes the selection of mainstream vehicle enterprise.The performance and cost of ternary material depend primarily on production technology and equipment.Nickel cobalt manganese
Hydroxide solubility product is small, and settling rate is fast, and solution degree of supersaturation is high, and crystal nucleation is fast, and colloidal precipitation easy to form, pattern is not
It is easy to control, and Mn (OH)2Big two orders of magnitude of the more other two kinds of hydroxide of solubility product are straight using nickel cobalt manganese metal salt and alkali
Reversed to be difficult to synthesis with spherical morphology presoma, realization is uniform to be co-precipitated, therefore in the synthesis of hydroxide precursor
When, the degree of supersaturation, pH value of precipitating ion, ammonia concn, temperature and stirring rate in reaction system need to be controlled, further, since
The presence of impurity can reduce coulombic efficiency, weaken the first discharge specific capacity of material, cause irreversible capacitance loss, therefore go
Except the trace impurity in raw material is also particularly critical to the performance for improving persursor material.
In the prior art, it is difficult to effectively exclude the trace impurity in raw material in industry when preparing ternary precursor to preceding
Drive the interference of body material property, it is therefore desirable to a kind of purification process for ternary precursor solution.
Summary of the invention
To solve in the prior art, when preparing ternary precursor, it is difficult to which trace impurity is to forerunner effectively in exclusion raw material
The problem of body material property interferes, the purpose of the present invention is to provide ternary precursor solution purification methods.
To achieve the above object, the invention adopts the following technical scheme:
Ternary precursor solution purification method, step include:
(1) pH of ternary precursor solution is adjusted with oxalic acid；
(2) first time temperature programming after hydrogen peroxide is added into step (1) treated solution；
(3) after step (2) treated solution being carried out first time filtering, second of temperature programming；
(4) step (3) treated solution is carried out second being aged after filtering.
Preferably, the range of step (1) described pH is 3.0~6.5.
Preferably, the concentration of step (2) described hydrogen peroxide is 0.02~0.2mol/L, and the addition flow that hydrogen peroxide is added is
70~600L/min.
Preferably, the heating rate of step (2) the first time temperature programming is 0.5~1.5 DEG C/min, and outlet temperature is
60 DEG C, the soaking time after reaching the outlet temperature is 10~30min.
Preferably, step (3) first time is filtered into natural filtration.
It is further preferred that the filter cloth mesh number of the natural filtration is 3000~6000.
Preferably, the heating rate of step (3) second of temperature programming is 1.5~2.5 DEG C/min, and outlet temperature is
70 DEG C, the soaking time after reaching the outlet temperature is 30~60min.
Preferably, step (4) described be filtered into for the second time is filtered under diminished pressure.
It is further preferred that the pressure being filtered under diminished pressure is 0.1~2MPa.
Preferably, the time of step (4) described ageing is 90~240min, and the temperature of the ageing is 35~60 DEG C.
Preferably, the method also includes before step (1), ternary precursor solution is heated up to 15~35 DEG C.
Beneficial effects of the present invention
1, ternary precursor solution purification method provided by the present invention solves in the prior art, prepares ternary forerunner
Be difficult to effectively exclude in raw material the problem of trace impurity interferes persursor material performance when body, after processing Fe in solution,
The content of the foreign ions such as Cu, Na, Zn, Ca, Mg is all satisfied requirements of the national standard；
2, purification process provided by the present invention, process is uncomplicated, and low energy consumption for cost, is conducive to promote and apply；
3, ternary precursor solution purification method provided by the present invention, after the temperature programming of hydrogen peroxide first time is added,
First time natural filtration is first carried out, which can remove impurity therein and the concentration that product is precipitated, production concentration is precipitated
The generation that contamination precipitation can be promoted to react is reduced, second of temperature programming is carried out again later, makes remaining micro member in solution
It is plain to be further precipitated, while the degree of purification for promoting solution gets a promotion, first kept the temperature after second of temperature programming to terminal again into
Row ageing, ensure that the abundant precipitation of impurity；
4, in purification process of the invention, the temperature being finally aged is lower than the outlet temperature of second of temperature programming, favorably
In making full use of thermal energy, energy consumption is saved, reduces real cost of production.
Specific embodiment
The following is specific embodiments of the present invention, and further retouches to technical solution of the present invention work in conjunction with the embodiments
It states, however, the present invention is not limited to these examples.
Embodiment 1
Ternary precursor solution purification method, step include:
(1) pH of ternary precursor solution is adjusted with oxalic acid；
(2) first time temperature programming after hydrogen peroxide is added into step (1) treated solution；
(3) after step (2) treated solution being carried out first time filtering, second of temperature programming；
(4) step (3) treated solution is carried out second being aged after filtering.
Wherein, the range of step (1) described pH is 3.0~6.5.
The concentration of step (2) described hydrogen peroxide is 0.02mol/L, and the addition flow that hydrogen peroxide is added is 70L/min, step
(2) heating rate of the first time temperature programming is 0.5 DEG C/min, and outlet temperature is 60 DEG C, after reaching the outlet temperature
Soaking time be 10~30min.
Step (3) first time is filtered into filter-cloth filtering, and the mesh number of the filter cloth is 3000, step (3) described second
The heating rate of secondary program heating is 1.5 DEG C/min, and outlet temperature is 70 DEG C, and the soaking time after reaching the outlet temperature is
30min。
Step (4) described be filtered into for the second time is filtered under diminished pressure, and the pressure being filtered under diminished pressure is 0.1MPa.Step (4) is described old
The time of change is 90min, and the temperature of the ageing is 35 DEG C.
Embodiment 2
Ternary precursor solution purification method, step include:
(1) pH of ternary precursor solution is adjusted with oxalic acid；
(2) first time temperature programming after hydrogen peroxide is added into step (1) treated solution；
(3) after step (2) treated solution being carried out first time filtering, second of temperature programming；
(4) step (3) treated solution is carried out second being aged after filtering.
Wherein, the range of step (1) described pH is 3.0~6.5.
The concentration of step (2) described hydrogen peroxide is 0.2mol/L, and the addition flow that hydrogen peroxide is added is 600L/min, step
(2) heating rate of the first time temperature programming is 0.5 DEG C/min, and outlet temperature is 60 DEG C, after reaching the outlet temperature
Soaking time be 10~30min.
Step (3) first time is filtered into filter-cloth filtering, and the mesh number of the filter cloth is 6000, step (3) described second
The heating rate of secondary program heating is 2.5 DEG C/min, and outlet temperature is 70 DEG C, and the soaking time after reaching the outlet temperature is
60min。
Step (4) described be filtered into for the second time is filtered under diminished pressure, and the pressure being filtered under diminished pressure is 2MPa, step (4) described ageing
Time be 240min, the temperature of the ageing is 60 DEG C.
Embodiment 3
Ternary precursor solution purification method, step include:
(1) pH of ternary precursor solution is adjusted with oxalic acid；
(2) first time temperature programming after hydrogen peroxide is added into step (1) treated solution；
(3) after step (2) treated solution being carried out first time filtering, second of temperature programming；
(4) step (3) treated solution is carried out second being aged after filtering.
Wherein, the range of step (1) described pH is 3.0~6.5.
The concentration of step (2) described hydrogen peroxide is 0.1mol/L, and the addition flow that hydrogen peroxide is added is 300L/min, step
(2) heating rate of the first time temperature programming is 0.5 DEG C/min, and outlet temperature is 60 DEG C, after reaching the outlet temperature
Soaking time be 10~30min.
Step (3) first time is filtered into filter-cloth filtering, and the mesh number of the filter cloth is 5000, step (3) described second
The heating rate of secondary program heating is 2.0 DEG C/min, and outlet temperature is 70 DEG C, and the soaking time after reaching the outlet temperature is
45min。
Step (4) described be filtered into for the second time is filtered under diminished pressure, and the pressure being filtered under diminished pressure is 1MPa, step (4) described ageing
Time be 160min, the temperature of the ageing is 50 DEG C.
Embodiment 4
Ternary precursor solution purification method, step include:
(1) ternary precursor solution is heated up to 15~35 DEG C, the pH of ternary precursor solution is adjusted with oxalic acid；
(2) first time temperature programming after hydrogen peroxide is added into step (1) treated solution；
(3) after step (2) treated solution being carried out first time filtering, second of temperature programming；
(4) step (3) treated solution is carried out second being aged after filtering.
Wherein, the range of step (1) described pH is 3.0~6.5.
The concentration of step (2) described hydrogen peroxide is 0.1mol/L, and the addition flow that hydrogen peroxide is added is 300L/min, step
(2) heating rate of the first time temperature programming is 1 DEG C/min, and outlet temperature is 60 DEG C, after reaching the outlet temperature
Soaking time is 20min.
Step (3) first time is filtered into filter-cloth filtering, and the mesh number of the filter cloth is 5000, step (3) described second
The heating rate of secondary program heating is 2.0 DEG C/min, and outlet temperature is 70 DEG C, and the soaking time after reaching the outlet temperature is
45min。
Step (4) described be filtered into for the second time is filtered under diminished pressure, and the pressure being filtered under diminished pressure is 1MPa, step (4) described ageing
Time be 160min, the temperature of the ageing is 60 DEG C.
Comparative example 1
Ternary precursor solution purification method, step include:
(1) pH of ternary precursor solution is adjusted with oxalic acid；
(2) temperature programming after hydrogen peroxide is added into step (1) treated solution；
(3) by step (2), treated is aged after solution is filtered.
Wherein, the range of step (1) described pH is 3.0~6.5.
The concentration of step (2) described hydrogen peroxide is 0.1mol/L, and the addition flow that hydrogen peroxide is added is 300L/min, step
(2) heating rate of described program heating is 1 DEG C/min, and outlet temperature is 70 DEG C, when heat preservation after reaching the outlet temperature
Between be 45min, described be filtered into of step (3) is filtered under diminished pressure, and the pressure being filtered under diminished pressure is 1MPa, and the time of the ageing is
160min, the temperature of the ageing are 60 DEG C.
Comparative example 2
Ternary precursor solution purification method, step include:
(1) pH of ternary precursor solution is adjusted with oxalic acid；
(2) first time temperature programming after hydrogen peroxide is added into step (1) treated solution；
(3) after step (2) treated solution being carried out first time filtering, second of temperature programming；
(4) step (3) treated solution second is carried out to filter.
Wherein, the range of step (1) described pH is 3.0~6.5.
The concentration of step (2) described hydrogen peroxide is 0.1mol/L, and the addition flow that hydrogen peroxide is added is 300L/min, step
(2) heating rate of the first time temperature programming is 1 DEG C/min, and outlet temperature is 60 DEG C, after reaching the outlet temperature
Soaking time is 20min.
Step (3) first time is filtered into filter-cloth filtering, and the mesh number of the filter cloth is 3000, step (3) described second
The heating rate of secondary program heating is 2.0 DEG C/min, and outlet temperature is 70 DEG C, and the soaking time after reaching the outlet temperature is
45min。
Step (4) described be filtered into for the second time is filtered under diminished pressure, and the pressure being filtered under diminished pressure is 1MPa.
Detect example
Using the method for Examples 1 to 4 and comparative example 1,2, to anode material for lithium-ion batteries ternary precursor solution into
It has gone purifying, has had detected the content of the foreign ions such as Fe, Cu, Na, Zn, Ca and Mg in purified solution, the results are shown in Table 1.
1 foreign ion testing result of table
Requirement in standard GB/T/T 26300-2010 " nickel-cobalt-manganese ternary complex hydroxide " to impurity element is Cu
Wt%≤0.01 wt%≤0.005, Fe, Na wt%≤0.03, Zn wt%≤0.01, Ca wt%≤0.03, Mg wt%
≤0.03。
As can be found from Table 1, the solution handled using 1 purification process of comparative example, Cu, Na, Zn and Mg impurity content exceeding index,
The solution handled using 2 purification process of comparative example, the impurity content exceeding index of Cu, Na, Zn and Ca, and use the embodiment of the present invention 1
~4 ternary precursor solution Fe, Cu, Na, Zn, Ca and Mg after purification complies with the national standard requirements.
Ternary precursor solution purification method provided by the present invention, solves in the prior art, prepares ternary precursor
When be difficult to effectively exclude in raw material the problem of trace impurity interferes persursor material performance, after processing Fe, Cu in solution,
The content of the foreign ions such as Na, Zn, Ca, Mg is all satisfied requirements of the national standard.Purification process process is uncomplicated, cost energy consumption
It is low, it is conducive to promote and apply.In purification process, after hydrogen peroxide heating filtering for the first time is added, then second of temperature programming is carried out,
The precipitation that may advantageously facilitate microelement in solution promotes the degree of purification of solution.
Claims (10)
1. ternary precursor solution purification method, which is characterized in that step includes:
(1) pH of ternary precursor solution is adjusted with oxalic acid；
(2) first time temperature programming after hydrogen peroxide is added into step (1) treated solution；
(3) after step (2) treated solution being carried out first time filtering, second of temperature programming；
(4) step (3) treated solution is carried out second being aged after filtering.
2. ternary precursor solution purification method described in claim 1, which is characterized in that the range of step (1) described pH is 3.0
~6.5.
3. ternary precursor solution purification method described in claim 1, which is characterized in that the concentration of step (2) described hydrogen peroxide
For 0.02~0.2mol/L, the addition flow that hydrogen peroxide is added is 70~600L/min.
4. ternary precursor solution purification method described in claim 1, which is characterized in that step (2) the first secondary program liter
The heating rate of temperature is 0.5~1.5 DEG C/min, and outlet temperature is 45 DEG C, and the soaking time after reaching the outlet temperature is 10
~30min.
5. ternary precursor solution purification method described in claim 1, which is characterized in that step (3) first time is filtered into
Natural filtration.
6. ternary precursor solution purification method described in claim 1, which is characterized in that step (3) the second secondary program liter
The heating rate of temperature is 1.5~2.5 DEG C/min, and outlet temperature is 70 DEG C, and the soaking time after reaching the outlet temperature is 30
~60min.
7. ternary precursor solution purification method described in claim 1, which is characterized in that step (4) is described to be filtered into for the second time
It is filtered under diminished pressure.
8. ternary precursor solution purification method described in claim 7, which is characterized in that the pressure being filtered under diminished pressure is 0.1
~2MPa.
9. ternary precursor solution purification method described in claim 1, which is characterized in that the time of step (4) described ageing is
90~240min, the temperature of the ageing are 35~60 DEG C.
10. ternary precursor solution purification method described in claim 1, which is characterized in that the method also includes in step (1)
Before, ternary precursor solution is heated up to 15~35 DEG C.
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Cited By (1)
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|---|---|---|---|---|
| CN116040694A (en) * | 2022-12-27 | 2023-05-02 | 中冶瑞木新能源科技有限公司 | Production method of ternary precursor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456564A (en) * | 2009-01-09 | 2009-06-17 | 昆明理工大学 | Method for preparing magnesium oxide powder by magnesium sulphate demanganization |
| CN102008939A (en) * | 2010-11-15 | 2011-04-13 | 西北农林科技大学 | Method for preparing aluminum-manganese composite oxide modified molecular sieve |
| CN103112901A (en) * | 2013-03-02 | 2013-05-22 | 湘潭大学 | Method for reducing contents of calcium ions, magnesium ions, potassium ions and sodium ions in manganese sulfate |
| CN103993346A (en) * | 2014-05-31 | 2014-08-20 | 奚经龙 | Impurity removing and regenerating method for electronickelling solution |
| CN105274332A (en) * | 2015-11-20 | 2016-01-27 | 金川集团股份有限公司 | Isolation technology and process for extracting Ni and Co from nickel-containing high-cobalt hydroxide |
| CN106673067A (en) * | 2016-12-30 | 2017-05-17 | 钦州学院 | Method for preparing battery-grade manganese sulfate from alkylation waste sulfuric acid |
| CN107579218A (en) * | 2017-08-23 | 2018-01-12 | 中国科学院过程工程研究所 | A method for directly preparing the precursor of nickel-cobalt-aluminum ternary cathode material from the acid leaching solution of laterite nickel ore |
| CN108265178A (en) * | 2018-03-08 | 2018-07-10 | 蒋央芳 | A kind of processing method of cobalt metallurgy of nickel waste water slag |
| CN108455547A (en) * | 2018-02-11 | 2018-08-28 | 衢州华友钴新材料有限公司 | A kind of low impurity high ferro phosphorus is than greatly than the preparation method of table battery-grade iron phosphate |
| KR101949769B1 (en) * | 2017-11-03 | 2019-02-20 | (주)케이엠씨 | Manufacturing method of nickel carbonate using waste etching solution |
-
2018
- 2018-11-23 CN CN201811409265.1A patent/CN109592720B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456564A (en) * | 2009-01-09 | 2009-06-17 | 昆明理工大学 | Method for preparing magnesium oxide powder by magnesium sulphate demanganization |
| CN102008939A (en) * | 2010-11-15 | 2011-04-13 | 西北农林科技大学 | Method for preparing aluminum-manganese composite oxide modified molecular sieve |
| CN103112901A (en) * | 2013-03-02 | 2013-05-22 | 湘潭大学 | Method for reducing contents of calcium ions, magnesium ions, potassium ions and sodium ions in manganese sulfate |
| CN103993346A (en) * | 2014-05-31 | 2014-08-20 | 奚经龙 | Impurity removing and regenerating method for electronickelling solution |
| CN105274332A (en) * | 2015-11-20 | 2016-01-27 | 金川集团股份有限公司 | Isolation technology and process for extracting Ni and Co from nickel-containing high-cobalt hydroxide |
| CN106673067A (en) * | 2016-12-30 | 2017-05-17 | 钦州学院 | Method for preparing battery-grade manganese sulfate from alkylation waste sulfuric acid |
| CN107579218A (en) * | 2017-08-23 | 2018-01-12 | 中国科学院过程工程研究所 | A method for directly preparing the precursor of nickel-cobalt-aluminum ternary cathode material from the acid leaching solution of laterite nickel ore |
| KR101949769B1 (en) * | 2017-11-03 | 2019-02-20 | (주)케이엠씨 | Manufacturing method of nickel carbonate using waste etching solution |
| CN108455547A (en) * | 2018-02-11 | 2018-08-28 | 衢州华友钴新材料有限公司 | A kind of low impurity high ferro phosphorus is than greatly than the preparation method of table battery-grade iron phosphate |
| CN108265178A (en) * | 2018-03-08 | 2018-07-10 | 蒋央芳 | A kind of processing method of cobalt metallurgy of nickel waste water slag |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116040694A (en) * | 2022-12-27 | 2023-05-02 | 中冶瑞木新能源科技有限公司 | Production method of ternary precursor |
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