CN115849459B - Preparation method and application of cobalt hydroxide - Google Patents
Preparation method and application of cobalt hydroxide Download PDFInfo
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- CN115849459B CN115849459B CN202211704972.XA CN202211704972A CN115849459B CN 115849459 B CN115849459 B CN 115849459B CN 202211704972 A CN202211704972 A CN 202211704972A CN 115849459 B CN115849459 B CN 115849459B
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- 229910021503 Cobalt(II) hydroxide Inorganic materials 0.000 title claims abstract description 64
- ASKVAEGIVYSGNY-UHFFFAOYSA-L cobalt(ii) hydroxide Chemical compound [OH-].[OH-].[Co+2] ASKVAEGIVYSGNY-UHFFFAOYSA-L 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims abstract description 52
- 229960005070 ascorbic acid Drugs 0.000 claims abstract description 26
- 235000010323 ascorbic acid Nutrition 0.000 claims abstract description 26
- 239000011668 ascorbic acid Substances 0.000 claims abstract description 26
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 claims abstract description 17
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 33
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 30
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- 239000002002 slurry Substances 0.000 claims description 28
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 15
- 230000032683 aging Effects 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 8
- 230000002572 peristaltic effect Effects 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims description 8
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 7
- 229910052708 sodium Inorganic materials 0.000 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- 229910017052 cobalt Inorganic materials 0.000 abstract description 7
- 239000010941 cobalt Substances 0.000 abstract description 7
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000654 additive Substances 0.000 abstract description 6
- 239000003513 alkali Substances 0.000 abstract description 6
- 230000000996 additive effect Effects 0.000 abstract description 3
- 239000002585 base Substances 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 239000011261 inert gas Substances 0.000 description 4
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 229910001429 cobalt ion Inorganic materials 0.000 description 1
- -1 cobalt oxyhydroxide Chemical compound 0.000 description 1
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001493 electron microscopy Methods 0.000 description 1
- 230000033444 hydroxylation Effects 0.000 description 1
- 238000005805 hydroxylation reaction Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a preparation method of cobalt hydroxide and application thereof, wherein the preparation method comprises the steps of mixing cobalt solution, alkali liquor and additives for reaction; the additive comprises ascorbic acid and hydrazine hydrate; according to the preparation method of the cobalt hydroxide, the specific surface area of the cobalt hydroxide is controlled by adjusting the addition amount of each component, wherein the specific surface area of the prepared cobalt hydroxide is 35m 2/g～45m2/g.
Description
Technical Field
The invention relates to the technical field of battery material preparation, in particular to a preparation method and application of cobalt hydroxide.
Background
The lithium ion battery has the advantages of high energy density, long cycle life, high working voltage, high safety, small self-discharge effect and the like, and is widely applied. With the development of lithium batteries, there is a higher demand for the lithium batteries, which means that there is a higher demand for the key materials thereof, particularly the positive electrode materials. Surface coating is a method for improving the performance of the cathode material. However, in the existing method, the specific surface area of the coating material cobalt hydroxide is smaller, the coating effect is limited, and the application of the anode material is limited.
Therefore, there is a need to develop a method for preparing cobalt hydroxide, which can solve the problems of small specific surface area and poor coating property of the existing cobalt hydroxide coating material.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a preparation method of cobalt hydroxide, which can solve the problems of small specific surface area and poor coating property of the existing cobalt hydroxide coating material.
According to the embodiment of the first aspect of the invention, the preparation method of the cobalt hydroxide comprises the steps of mixing cobalt solution, alkali liquor and additives for reaction;
The additive comprises ascorbic acid and hydrazine hydrate;
According to the weight portions, 340 to 350g of alkali liquor and 1 to 2 portions of ascorbic acid.
According to some embodiments of the invention, the method for preparing cobalt hydroxide comprises:
s1, mixing the alkali liquor and the additive to obtain a solution A;
S2, adding the cobalt solution into the solution A for mixing reaction.
According to an embodiment of the first aspect of the invention, at least the following advantages are achieved:
The invention discloses a preparation method of cobalt hydroxide with a large specific surface area. The specific surface area of the coating material such as cobalt hydroxide in the current market is between 15 and 25m 2/g, and the specific surface area is smaller. In the cobalt hydroxide prepared in the invention, in the reaction process of adding additives (ascorbic acid and hydrazine hydrate), the ascorbic acid plays a role in hydroxylation, the hydrazine hydrate plays a role in antioxidation, and the rapid synthesis of the reaction is promoted, so that the crystal structure of the cobalt hydroxide is changed, the sheet-shaped structure of primary particles of the cobalt hydroxide tends to be finer and thinner, and the specific surface area of the cobalt hydroxide is enlarged; the specific surface area of the cobalt hydroxide prepared by the method is between 35m 2/g～45m2/g, and the control of the specific surface area of the cobalt hydroxide can be realized by adjusting the amount of the ascorbic acid.
According to some embodiments of the invention, filtering the cobalt solution is further included in step S2.
According to some embodiments of the invention, in step S2, the solution a is added to the pH-adjusted aqueous ammonia solution by a peristaltic pump.
According to some embodiments of the invention, the alkali lye is 340-350 g, the ascorbic acid is 1-2 parts, and the hydrazine hydrate is 1-2 parts by weight.
According to some embodiments of the invention, the alkali lye is 340-350 g, the ascorbic acid is 1-1.2 parts, and the hydrazine hydrate is 1-2 parts by weight.
According to some embodiments of the invention, the lye further comprises at least one of an aqueous potassium hydroxide solution, an aqueous sodium hydroxide solution and an aqueous lithium hydroxide solution.
According to some embodiments of the invention, the concentration of cobalt ions in the cobalt solution is 1.5-2.5 mol/L.
According to some embodiments of the invention, in step S2, the cobalt solution is added to the solution a, and the time of the adding process is 30-40 min.
According to some embodiments of the invention, in step S2, the mixing reaction is followed by aging.
According to some embodiments of the invention, the aging time is 2 to 3 hours.
According to some embodiments of the invention, the aging further comprises drying.
According to some embodiments of the invention, the drying time is 95-105 ℃.
According to some embodiments of the invention, the drying time is 12-13 hours.
According to some embodiments of the invention, the mass concentration of the hydrazine hydrate in the cobalt solution is 40% -80%.
According to some embodiments of the invention, the temperature of the mixing reaction is between 35 and 55 ℃.
According to some embodiments of the invention, the mixing reaction time is 2 to 4 hours.
According to some embodiments of the invention, the reaction is carried out under an inert gas atmosphere.
According to some embodiments of the invention, the inert gas comprises nitrogen.
According to some embodiments of the invention, the flow rate of the inert gas in the inert gas atmosphere is 10-12L/min.
According to some embodiments of the invention, the reacting comprises stirring the reaction.
According to some embodiments of the invention, the rotational speed of the stirring reaction is 400-800 r/min.
An embodiment according to a second aspect of the present invention proposes an electrode, the electrode being prepared starting from a starting material comprising the cobalt hydroxide.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a Scanning Electron Microscope (SEM) picture of the product obtained in example 1;
FIG. 2 is a Scanning Electron Microscope (SEM) picture of the product obtained in example 1;
FIG. 3 is a Scanning Electron Microscope (SEM) photograph of the dried and crushed product of example 1;
FIG. 4 is a Scanning Electron Microscope (SEM) photograph of the dried and crushed product of example 1.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
Example 1
The embodiment discloses a preparation method of cobalt hydroxide, which comprises the following steps:
s1: weighing 954.55g of cobalt chloride, adding pure water, fixing the volume to 2.1L, and filtering to remove solid impurities to obtain a cobalt chloride solution;
S2: 1g of ascorbic acid and 0.4ml of hydrazine hydrate solution are weighed and added into 800ml of sodium hydroxide solution, stirring and nitrogen protection are started, the stirring frequency is 400r/min, and the nitrogen flow is 10L/min, and the mixture is uniformly mixed to be used as base solution;
S3: heating the base solution in the step S2 to 45 ℃, pumping cobalt chloride solution into the base solution by a peristaltic pump within 30min, and aging for 2h to obtain cobalt hydroxide slurry;
S4: washing the sodium content of the cobalt hydroxide slurry to below 500ppm, pressing the slurry to dryness, and placing the slurry into a drying oven, and preserving the temperature at 95 ℃ for 12 hours to obtain a cobalt hydroxide sample.
FIG. 1 is a Scanning Electron Microscope (SEM) picture of the product obtained in example 1;
FIG. 2 is a Scanning Electron Microscope (SEM) picture of the product obtained in example 1;
FIG. 3 is a Scanning Electron Microscope (SEM) photograph of the dried and crushed product of example 1;
FIG. 4 is a Scanning Electron Microscope (SEM) photograph of the dried and crushed product of example 1.
Example 2
The embodiment discloses a preparation method of cobalt hydroxide, which comprises the following steps:
s1: weighing 954.55g of cobalt chloride, adding pure water, fixing the volume to 2.1L, and filtering to remove solid impurities to obtain a cobalt chloride solution;
S2: 1g of ascorbic acid and 0.4ml of hydrazine hydrate solution are weighed and added into 800ml of sodium hydroxide solution, stirring and nitrogen protection are started, the stirring frequency is 400r/min, and the nitrogen flow is 10L/min, and the mixture is uniformly mixed to be used as base solution;
S3: heating the base solution in the step S2 to 45 ℃, pumping cobalt chloride solution into the base solution by a peristaltic pump within 30min, and aging for 2h to obtain cobalt hydroxide slurry;
S4: washing the sodium content of the cobalt hydroxide slurry to below 500ppm, pressing the slurry to dryness, and placing the slurry into a drying oven, and preserving the temperature at 95 ℃ for 12 hours to obtain a cobalt hydroxide sample.
Example 3
The embodiment discloses a preparation method of cobalt hydroxide, which comprises the following steps:
s1: weighing 954.55g of cobalt chloride, adding pure water, fixing the volume to 2.1L, and filtering to remove solid impurities to obtain a cobalt chloride solution;
S2: 1g of ascorbic acid and 0.4ml of hydrazine hydrate solution are weighed and added into 800ml of sodium hydroxide solution, stirring and nitrogen protection are started, the stirring frequency is 400r/min, and the nitrogen flow is 10L/min, and the mixture is uniformly mixed to be used as base solution;
S3: heating the base solution in the step S2 to 45 ℃, pumping cobalt chloride solution into the base solution by a peristaltic pump within 30min, and aging for 2h to obtain cobalt hydroxide slurry;
S4: washing the sodium content of the cobalt hydroxide slurry to below 500ppm, pressing the slurry to dryness, and placing the slurry into a drying oven, and preserving the temperature at 95 ℃ for 12 hours to obtain a cobalt hydroxide sample.
Example 5
The embodiment discloses a preparation method of cobalt hydroxide, which comprises the following steps:
s1: weighing 954.55g of cobalt chloride, adding pure water, fixing the volume to 2.1L, and filtering to remove solid impurities to obtain a cobalt chloride solution;
S2: 1g of ascorbic acid and 0.4ml of hydrazine hydrate solution are weighed and added into 800ml of sodium hydroxide solution, stirring and nitrogen protection are started, the stirring frequency is 400r/min, and the nitrogen flow is 10L/min, and the mixture is uniformly mixed to be used as base solution;
S3: heating the base solution in the step S2 to 45 ℃, pumping cobalt chloride solution into the base solution by a peristaltic pump within 30min, and aging for 2h to obtain cobalt hydroxide slurry;
S4: washing the sodium content of the cobalt hydroxide slurry to below 500ppm, pressing the slurry to dryness, and placing the slurry into a drying oven, and preserving the temperature at 95 ℃ for 12 hours to obtain a cobalt hydroxide sample.
Example 6
This example discloses a method for preparing cobalt hydroxide, which differs from example 1 in that the amount of ascorbic acid added in step S2 is 1.1g, and the rest of the procedure is the same.
Example 7
This example discloses a method for preparing cobalt hydroxide, which differs from example 2 in that the amount of ascorbic acid added in step S2 is 1.1g, and the rest of the procedure is the same.
Example 8
This example discloses a method for preparing cobalt hydroxide, which differs from example 3 in that the amount of ascorbic acid added in step S2 is 1.1g, and the rest of the procedure is the same.
Example 9
This example discloses a method for preparing cobalt hydroxide, which differs from example 4 in that the amount of ascorbic acid added in step S2 is 1.1g, and the rest of the procedure is the same.
Example 10
This example discloses a method for preparing cobalt hydroxide, which differs from example 5 in that the amount of ascorbic acid added in step S2 is 1.1g, and the rest of the procedure is the same.
Example 11
This example discloses a method for preparing cobalt hydroxide, which differs from example 1 in that the amount of ascorbic acid added in step S2 is 1.2g, and the rest of the procedure is the same.
Example 12
This example discloses a method for preparing cobalt hydroxide, which differs from example 2 in that the amount of ascorbic acid added in step S2 is 1.2g, and the rest of the procedure is the same.
Example 13
This example discloses a method for preparing cobalt hydroxide, which differs from example 3 in that the amount of ascorbic acid added in step S2 is 1.2g, and the rest of the procedure is the same.
Example 14
This example discloses a method for preparing cobalt hydroxide, which differs from example 4 in that the amount of ascorbic acid added in step S2 is 1.2g, and the rest of the procedure is the same.
Example 15
This example discloses a method for preparing cobalt hydroxide, which differs from example 5 in that the amount of ascorbic acid added in step S2 is 1.2g, and the rest of the procedure is the same.
Test example 1
The physical and chemical indexes and the section of the cobalt oxyhydroxide sample prepared in the above example are taken for electron microscopy, and the results are shown in table 1.
TABLE 1 Performance test results
According to the records in Table 1, the specific surface area of the cobalt hydroxide prepared by the method is between 35m 2/g～45m2/g, and the regulation and control of the specific surface area of the cobalt hydroxide are realized by adjusting the amount of the ascorbic acid.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (4)
1. A method for preparing cobalt hydroxide, the method comprising:
s1: weighing 954.55g of cobalt chloride, adding pure water, fixing the volume to 2.1L, and filtering to remove solid impurities to obtain a cobalt chloride solution;
S2: 1g of ascorbic acid and 0.4ml of hydrazine hydrate solution are weighed and added into 800ml of sodium hydroxide solution, stirring and nitrogen protection are started, the stirring frequency is 400r/min, and the nitrogen flow is 10L/min, and the mixture is uniformly mixed to be used as base solution;
S3: heating the base solution in the step S2 to 45 ℃, pumping cobalt chloride solution into the base solution by a peristaltic pump within 30min, and aging for 2h to obtain cobalt hydroxide slurry;
S4: washing the sodium content of the cobalt hydroxide slurry to below 500ppm, pressing the slurry to dryness, and placing the slurry into a drying oven, and preserving the temperature at 95 ℃ for 12 hours to obtain a cobalt hydroxide sample;
The mass concentration of the hydrazine hydrate is 40% -80%.
2. A method for preparing cobalt hydroxide, the method comprising:
s1: weighing 954.55g of cobalt chloride, adding pure water, fixing the volume to 2.1L, and filtering to remove solid impurities to obtain a cobalt chloride solution;
s2: 1.1g of ascorbic acid and 0.4ml of hydrazine hydrate solution are weighed and added into 800ml of sodium hydroxide solution, stirring and nitrogen protection are started, the stirring frequency is 400r/min, and the nitrogen flow is 10L/min, and the mixture is uniformly mixed to be used as base solution;
S3: heating the base solution in the step S2 to 45 ℃, pumping cobalt chloride solution into the base solution by a peristaltic pump within 30min, and aging for 2h to obtain cobalt hydroxide slurry;
S4: washing the sodium content of the cobalt hydroxide slurry to below 500ppm, pressing the slurry to dryness, and placing the slurry into a drying oven, and preserving the temperature at 95 ℃ for 12 hours to obtain a cobalt hydroxide sample;
The mass concentration of the hydrazine hydrate is 40% -80%.
3. A method for preparing cobalt hydroxide, the method comprising:
s1: weighing 954.55g of cobalt chloride, adding pure water, fixing the volume to 2.1L, and filtering to remove solid impurities to obtain a cobalt chloride solution;
s2: weighing 1.2g of ascorbic acid and 0.4ml of hydrazine hydrate solution, adding into 800ml of sodium hydroxide solution, starting stirring and nitrogen protection, wherein the stirring frequency is 400r/min, and the nitrogen flow is 10L/min, and uniformly mixing to obtain a base solution;
S3: heating the base solution in the step S2 to 45 ℃, pumping cobalt chloride solution into the base solution by a peristaltic pump within 30min, and aging for 2h to obtain cobalt hydroxide slurry;
S4: washing the sodium content of the cobalt hydroxide slurry to below 500ppm, pressing the slurry to dryness, and placing the slurry into a drying oven, and preserving the temperature at 95 ℃ for 12 hours to obtain a cobalt hydroxide sample;
The mass concentration of the hydrazine hydrate is 40% -80%.
4. An electrode, wherein the electrode is prepared from the cobalt hydroxide prepared by the preparation method according to any one of claims 1 to 3.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101955234A (en) * | 2009-07-15 | 2011-01-26 | 海南金亿新材料股份有限公司 | Method for preparing high purity nano cobalt hydroxide |
| CN113753965A (en) * | 2021-08-24 | 2021-12-07 | 广东邦普循环科技有限公司 | Cobalt hydroxide synthesis method and cobalt hydroxide |
| CN114835172A (en) * | 2022-05-31 | 2022-08-02 | 荆门市格林美新材料有限公司 | Cobalt hydroxide particles and preparation method and application thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101955234A (en) * | 2009-07-15 | 2011-01-26 | 海南金亿新材料股份有限公司 | Method for preparing high purity nano cobalt hydroxide |
| CN113753965A (en) * | 2021-08-24 | 2021-12-07 | 广东邦普循环科技有限公司 | Cobalt hydroxide synthesis method and cobalt hydroxide |
| CN114835172A (en) * | 2022-05-31 | 2022-08-02 | 荆门市格林美新材料有限公司 | Cobalt hydroxide particles and preparation method and application thereof |
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