CN112349897A - Carbon-coated ternary cathode material and preparation method thereof - Google Patents

Carbon-coated ternary cathode material and preparation method thereof Download PDF

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CN112349897A
CN112349897A CN202011388028.9A CN202011388028A CN112349897A CN 112349897 A CN112349897 A CN 112349897A CN 202011388028 A CN202011388028 A CN 202011388028A CN 112349897 A CN112349897 A CN 112349897A
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cathode material
carbon
ternary cathode
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coated ternary
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赵光辉
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SHANDONG FENGYUAN CHEMICAL CO Ltd
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    • C01G53/00—Compounds of nickel
    • C01G53/40—Nickelates
    • C01G53/42—Nickelates containing alkali metals, e.g. LiNiO2
    • C01G53/44—Nickelates containing alkali metals, e.g. LiNiO2 containing manganese
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    • 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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    • 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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    • H01M2004/028—Positive electrodes
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Abstract

The invention discloses a carbon-coated ternary cathode material which comprises a ternary cathode material, wherein the ternary cathode material is LinNi1-x-yCoxMnyO2, x is more than 0 and less than 0.5, y is more than 0 and less than 0.5, and n is more than 0.9 and less than 1.5; the invention also provides a preparation method of the carbon-coated ternary cathode material, which can improve the electronic conductivity of the carbon coating layer, and the material shows excellent electrochemical performance when being used as a lithium ion battery cathode material; the carbon material has the advantages of excellent conductivity, ultrahigh chemical and electrochemical stability, unique physical properties, low cost and the like, the problem of poor conductivity of the carbon-coated lithium ion cathode material can be solved by adopting the carbon-coated lithium ion cathode material, the conductivity of the carbon material can be effectively improved, the conductivity of the carbon-coated ternary cathode material is further improved, and the electrochemical performance of the cathode material is further improved.

Description

Carbon-coated ternary cathode material and preparation method thereof
Technical Field
The invention belongs to the technical field of carbon-coated ternary cathode materials, and particularly relates to a carbon-coated ternary cathode material and a preparation method of the carbon-coated ternary cathode material.
Background
At present, the lithium ion battery has very important and wide application prospect as a green new energy product. And the anode material determines the energy density, service life and safety performance of the lithium ion battery. Therefore, the positive electrode material plays a significant role in lithium ion batteries. And the carbon layer is coated on the surface of the anode material, so that the electrochemical performance of the anode material can be effectively improved, and the service performance of the lithium ion battery is finally improved.
The carbon-coated ternary cathode material is prepared by adopting a chemical vapor deposition method in the prior art. However, the deposition temperature is usually high in the chemical vapor deposition preparation process, and an excessively high deposition temperature causes a redox reaction of the carbon-coated ternary cathode material, so that a heterogeneous phase is generated, and the electrochemical performance of the lithium ion battery is finally affected.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a carbon-coated ternary cathode material and a preparation method thereof.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a carbon-coated ternary positive electrode material which comprises a ternary positive electrode material, wherein the ternary positive electrode material is LinNi1-x-yCoxMnyO2, x is more than 0 and less than 0.5, y is more than 0 and less than 0.5, and n is more than 0.9 and less than 1.5.
The invention also provides a preparation method of the carbon-coated ternary cathode material, which comprises the following specific steps:
s1: ultrasonically dispersing a submicron ternary cathode material in deionized water, wherein the ultrasonic frequency is 30-40 kHz, the ultrasonic time is 1-2 hours, adding citric acid as a carbon source to obtain a precursor solution, and the mass ratio of the citric acid to the submicron ternary cathode material is 0.09-0.11: 1;
s2: oxidizing the ternary cathode material solution in an oxidizing atmosphere environment, and stirring to obtain a washed carbon oxide-coated ternary cathode material;
s3: filtering and drying the carbon oxide-coated ternary cathode material in a vacuum environment to obtain a dried carbon oxide-coated ternary cathode material;
s4: and introducing inert gas, and sintering the dried carbon oxide-coated ternary cathode material S3 to obtain the carbon-coated ternary cathode material.
In S1, the submicron ternary cathode material is prepared by the following steps:
according to x: y: taking nickel acetate tetrahydrate, cobalt acetate tetrahydrate and manganese acetate tetrahydrate according to the molar ratio of 1-x-y; and dispersing it in a dispersion of 3: 2, in the ethanol water solution, the solid content of the obtained solution is 8-15%; continuously stirring for 3-8 hours at 65 ℃, and adding acetic acid until the mixture becomes gel; then putting the gel into a muffle furnace, heating to 500-600 ℃ at a heating rate of 4-6 ℃/min, and calcining for 2-4 h to obtain a nickel-cobalt-manganese precursor; and mixing the prepared nickel-cobalt-manganese precursor with LiNO3 according to the weight ratio of 1.2: 1, mixing in a molar ratio; then heating to 700-900 ℃ at a heating rate of 3 ℃/min, and calcining for 9-12 h.
In one embodiment of the invention, in the step S1, the mass ratio of the ionized water to the ternary cathode material matrix is 1: 1-1: 50; in step S2, the stirring speed is 200 to 450 rpm.
In one embodiment of the invention, in the step S1, the molar ratio of the submicron ternary cathode material to the sum of nitrogen and carbon atoms is 15-25%; the mass ratio of the submicron ternary cathode material to the deionized water is 1: 45.
in an embodiment of the invention, in step S2, the oxidizing atmosphere environment is an oxygen environment or an air environment, the flow rate of the oxidizing atmosphere is 5 to 30L/min, the stirring speed is 500 to 1000rpm/min, and the stirring time is 60 to 180 min.
In an embodiment of the invention, in step S3, the vacuum drying temperature is 50 to 150 ℃, the vacuum degree is 50 to 150pa, the drying time is 6 to 48 hours, and the temperature rise rate at high temperature is 0.5 to 4 ℃/min.
In one embodiment of the present invention, in step S4, the inert gas is argon or nitrogen, the gas flow rate is 5-30L/min, the temperature rise rate at high temperature is 1-4 ℃/min, the temperature rise rate at high temperature is 300-600 ℃, and the calcination time is 2-3 h.
In one embodiment of the invention, the chemical formula of the ternary cathode material is LiNi1-x-yCoxMyO2, wherein x is more than or equal to 0.1 and less than or equal to 0.25, y is more than or equal to 0.05 and less than or equal to 0.3, and M comprises one or more of manganese and aluminum.
In one embodiment of the invention, the mass of the carbon coating layer accounts for 0.5-5% of the total mass of the carbon-coated ternary cathode material; the carbon compound is reticular nitrogen-doped carbon compound porphyrin.
The invention has the technical effects and advantages that:
1. the coating layer is beneficial to inhibiting the breakage and crack generation of the lithium ion battery anode material in the charging and discharging process, and in addition, the coating with carbon can effectively improve the electrode conductivity, improve the surface chemistry of the active material and protect the electrode from directly contacting the electrolyte, thereby obtaining better cycle life.
2. The carbon element has higher electronegativity, changes the original electric balance state of the carbon material, and obviously improves the electronic conductivity of the carbon-based material. The material can improve the electronic conductivity of the carbon coating layer, and the material is used for lithium ion battery anode materials and shows excellent electrochemical performance.
3. The carbon material has the advantages of excellent conductivity, ultrahigh chemical and electrochemical stability, unique physical properties, low cost and the like, the problem of poor conductivity of the carbon-coated lithium ion cathode material can be solved by adopting the carbon-coated lithium ion cathode material, the conductivity of the carbon material can be effectively improved, the conductivity of the carbon-coated ternary cathode material is further improved, and the electrochemical performance of the cathode material is further improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to embodiments 1 to 3 of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a carbon-coated ternary positive electrode material which comprises a ternary positive electrode material, wherein the ternary positive electrode material is LinNi1-x-yCoxMnyO2, x is more than 0 and less than 0.5, y is more than 0 and less than 0.5, and n is more than 0.9 and less than 1.5.
The invention also provides a preparation method of the carbon-coated ternary cathode material, which comprises the following specific steps:
s1: ultrasonically dispersing a submicron ternary cathode material in deionized water, wherein the ultrasonic frequency is 30-40 kHz, the ultrasonic time is 1-2 hours, adding citric acid serving as a carbon source to obtain a precursor solution, and the mass ratio of the citric acid to the submicron ternary cathode material is 0.09: 1;
s2: oxidizing the ternary cathode material solution in an oxidizing atmosphere environment, and stirring to obtain a washed carbon oxide-coated ternary cathode material;
s3: filtering and drying the carbon oxide-coated ternary cathode material in a vacuum environment to obtain a dried carbon oxide-coated ternary cathode material;
s4: and introducing inert gas, and sintering the dried carbon oxide-coated ternary cathode material S3 to obtain the carbon-coated ternary cathode material.
In S1, the submicron ternary cathode material is prepared by the following steps:
according to x: y: taking nickel acetate tetrahydrate, cobalt acetate tetrahydrate and manganese acetate tetrahydrate according to the molar ratio of 1-x-y; and dispersing it in a dispersion of 3: 2, the solid content of the obtained solution is 8 percent; stirring at 65 deg.C for 3 hr, adding acetic acid until it becomes gel; then putting the gel into a muffle furnace, heating to 500-600 ℃ at a heating rate of 4-6 ℃/min, and calcining for 2-4 h to obtain a nickel-cobalt-manganese precursor; and mixing the prepared nickel-cobalt-manganese precursor with LiNO3 according to the weight ratio of 1.2: 1, mixing in a molar ratio; then the temperature is raised to 700 ℃ at the heating rate of 3 ℃/min, and the calcination is carried out for 9 h.
Specifically, in step S1, the mass ratio of the ionized water to the ternary cathode material matrix is 1: 1-1: 50; in step S2, the stirring speed is 200 to 450 rpm.
In a specific implementation, in step S1, the molar ratio of the submicron ternary cathode material to the sum of nitrogen and carbon atoms is 15%; the mass ratio of the submicron ternary cathode material to the deionized water is 1: 45.
in step S2, the oxidizing atmosphere is an oxygen atmosphere or an air atmosphere, the flow rate of the oxidizing atmosphere is 5L/min, the stirring speed is 500rpm/min, and the stirring time is 60 to 180 min.
Specifically, in step S3, the vacuum drying temperature is 50 ℃, the vacuum degree is 50pa, the drying time is 6, and the temperature rise rate at high temperature is 0.5 ℃/min.
In other embodiments, in step S4, the inert gas is argon or nitrogen, the gas flow rate is 5L/min, the temperature increase rate of the high temperature is 1 ℃/min, the high temperature is 300 ℃, and the calcination is performed for 2 h.
Specifically, the chemical formula of the ternary cathode material is LiNi1-x-yCoxMyO2, wherein x is more than or equal to 0.1 and less than or equal to 0.25, y is more than or equal to 0.05 and less than or equal to 0.3, and M comprises one or more of manganese and aluminum.
In an embodiment, the mass of the carbon coating layer accounts for 0.5-5% of the total mass of the carbon-coated ternary cathode material; the carbon compound is reticular nitrogen-doped carbon compound porphyrin.
Example 2
The invention provides a carbon-coated ternary positive electrode material which comprises a ternary positive electrode material, wherein the ternary positive electrode material is LinNi1-x-yCoxMnyO2, x is more than 0 and less than 0.5, y is more than 0 and less than 0.5, and n is more than 0.9 and less than 1.5.
The invention also provides a preparation method of the carbon-coated ternary cathode material, which comprises the following specific steps:
s1: ultrasonically dispersing a submicron ternary cathode material in deionized water, wherein the ultrasonic frequency is 30-40 kHz, the ultrasonic time is 1-2 hours, adding citric acid serving as a carbon source to obtain a precursor solution, and the mass ratio of the citric acid to the submicron ternary cathode material is 0.1: 1;
s2: oxidizing the ternary cathode material solution in an oxidizing atmosphere environment, and stirring to obtain a washed carbon oxide-coated ternary cathode material;
s3: filtering and drying the carbon oxide-coated ternary cathode material in a vacuum environment to obtain a dried carbon oxide-coated ternary cathode material;
s4: and introducing inert gas, and sintering the dried carbon oxide-coated ternary cathode material S3 to obtain the carbon-coated ternary cathode material.
In S1, the submicron ternary cathode material is prepared by the following steps:
according to x: y: taking nickel acetate tetrahydrate, cobalt acetate tetrahydrate and manganese acetate tetrahydrate according to the molar ratio of 1-x-y; and dispersing it in a dispersion of 3: 2, the solid content of the obtained solution is 11 percent; stirring continuously at 65 deg.C for 5 hr, adding acetic acid until it becomes gel; then putting the gel into a muffle furnace, heating to 500-600 ℃ at a heating rate of 4-6 ℃/min, and calcining for 2-4 h to obtain a nickel-cobalt-manganese precursor; and mixing the prepared nickel-cobalt-manganese precursor with LiNO3 according to the weight ratio of 1.2: 1, mixing in a molar ratio; and then heating to 800 ℃ at the heating rate of 3 ℃/min, and calcining for 9-12 h.
Specifically, in step S1, the mass ratio of the ionized water to the ternary cathode material matrix is 1: 1-1: 50; in step S2, the stirring speed is 200 to 450 rpm.
In a specific implementation, in step S1, the molar ratio of the submicron ternary cathode material to the sum of nitrogen and carbon atoms is 20%; the mass ratio of the submicron ternary cathode material to the deionized water is 1: 45.
in step S2, the oxidizing atmosphere is an oxygen atmosphere or an air atmosphere, the flow rate of the oxidizing atmosphere is 15L/min, the stirring speed is 800rpm/min, and the stirring time is 60 to 180 min.
Specifically, in step S3, the vacuum drying temperature is 100 ℃, the vacuum degree is 100pa, the drying time is 24 hours, and the temperature rise rate at high temperature is 2 ℃/min.
In other embodiments, in step S4, the inert gas is argon or nitrogen, the gas flow rate is 5-30L/min, the temperature increase rate at high temperature is 2 ℃/min, the temperature increase is 400 ℃, and the calcination is performed for 2.5 h.
Specifically, the chemical formula of the ternary cathode material is LiNi1-x-yCoxMyO2, wherein x is more than or equal to 0.1 and less than or equal to 0.25, y is more than or equal to 0.05 and less than or equal to 0.3, and M comprises one or more of manganese and aluminum.
In an embodiment, the mass of the carbon coating layer accounts for 0.5-5% of the total mass of the carbon-coated ternary cathode material; the carbon compound is reticular nitrogen-doped carbon compound porphyrin.
Example 3
The invention provides a carbon-coated ternary positive electrode material which comprises a ternary positive electrode material, wherein the ternary positive electrode material is LinNi1-x-yCoxMnyO2, x is more than 0 and less than 0.5, y is more than 0 and less than 0.5, and n is more than 0.9 and less than 1.5.
The invention also provides a preparation method of the carbon-coated ternary cathode material, which comprises the following specific steps:
s1: ultrasonically dispersing a submicron ternary cathode material in deionized water, wherein the ultrasonic frequency is 30-40 kHz, the ultrasonic time is 1-2 hours, adding citric acid serving as a carbon source to obtain a precursor solution, and the mass ratio of the citric acid to the submicron ternary cathode material is 0.11: 1;
s2: oxidizing the ternary cathode material solution in an oxidizing atmosphere environment, and stirring to obtain a washed carbon oxide-coated ternary cathode material;
s3: filtering and drying the carbon oxide-coated ternary cathode material in a vacuum environment to obtain a dried carbon oxide-coated ternary cathode material;
s4: and introducing inert gas, and sintering the dried carbon oxide-coated ternary cathode material S3 to obtain the carbon-coated ternary cathode material.
In S1, the submicron ternary cathode material is prepared by the following steps:
according to x: y: taking nickel acetate tetrahydrate, cobalt acetate tetrahydrate and manganese acetate tetrahydrate according to the molar ratio of 1-x-y; and dispersing it in a dispersion of 3: 2, the solid content of the obtained solution is 15 percent; stirring continuously at 65 deg.C for 8 hr, adding acetic acid until it becomes gel; then putting the gel into a muffle furnace, heating to 500-600 ℃ at a heating rate of 4-6 ℃/min, and calcining for 2-4 h to obtain a nickel-cobalt-manganese precursor; and mixing the prepared nickel-cobalt-manganese precursor with LiNO3 according to the weight ratio of 1.2: 1, mixing in a molar ratio; then the temperature is increased to 900 ℃ at the heating rate of 3 ℃/min, and the calcination is carried out for 12 h.
Specifically, in step S1, the mass ratio of the ionized water to the ternary cathode material matrix is 1: 1-1: 50; in step S2, the stirring speed is 200 to 450 rpm.
In a specific implementation, in step S1, the molar ratio of the submicron ternary cathode material to the sum of nitrogen carbon atoms is 25%; the mass ratio of the submicron ternary cathode material to the deionized water is 1: 45.
in step S2, the oxidizing atmosphere is an oxygen atmosphere or an air atmosphere, the flow rate of the oxidizing atmosphere is 30L/min, the stirring speed is 1000rpm/min, and the stirring time is 60 to 180 min.
Specifically, in step S3, the vacuum drying temperature is 150 ℃, the vacuum degree is 150pa, the drying time is 48, and the temperature rise rate at high temperature is 4 ℃/min.
In other embodiments, in step S4, the inert gas is argon or nitrogen, the gas flow rate is 30L/min, the temperature increase rate of the high temperature is 4 ℃/min, the high temperature is 600 ℃, and the calcination is performed for 3 h.
Specifically, the chemical formula of the ternary cathode material is LiNi1-x-yCoxMyO2, wherein x is more than or equal to 0.1 and less than or equal to 0.25, y is more than or equal to 0.05 and less than or equal to 0.3, and M comprises one or more of manganese and aluminum.
In an embodiment, the mass of the carbon coating layer accounts for 0.5-5% of the total mass of the carbon-coated ternary cathode material; the carbon compound is reticular nitrogen-doped carbon compound porphyrin.
When the carbon-coated lithium ion battery positive electrode material is used, the coating layer is added, so that the breakage and crack generation of the lithium ion battery positive electrode material in the charging and discharging processes can be inhibited, in addition, the carbon coating can effectively improve the electrode conductivity, improve the surface chemistry of the active material and protect the electrode from directly contacting the electrolyte, and thus, the better cycle life can be obtained; the carbon element has higher electronegativity, changes the original electric balance state of the carbon material, and obviously improves the electronic conductivity of the carbon-based material. The electronic conductivity of the carbon coating layer can be improved, and the material is used for a lithium ion battery anode material and shows excellent electrochemical performance; the carbon material has the advantages of excellent conductivity, ultrahigh chemical and electrochemical stability, unique physical properties, low cost and the like, the problem of poor conductivity of the carbon-coated lithium ion cathode material can be solved by adopting the carbon-coated lithium ion cathode material, the conductivity of the carbon material can be effectively improved, the conductivity of the carbon-coated ternary cathode material is further improved, and the electrochemical performance of the cathode material is further improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (10)

1. A carbon-coated ternary cathode material comprises a ternary cathode material and is characterized in that: the ternary positive electrode material is LinNi1-x-yCoxMnyO2, wherein x is more than 0 and less than 0.5, y is more than 0 and less than 0.5, and n is more than 0.9 and less than 1.5.
2. The method for preparing the carbon-coated ternary cathode material according to claim 1, wherein the method comprises the following steps: the method specifically comprises the following steps:
s1: ultrasonically dispersing a submicron ternary cathode material in deionized water, wherein the ultrasonic frequency is 30-40 kHz, the ultrasonic time is 1-2 hours, adding citric acid as a carbon source to obtain a precursor solution, and the mass ratio of the citric acid to the submicron ternary cathode material is 0.09-0.11: 1;
s2: oxidizing the ternary cathode material solution in an oxidizing atmosphere environment, and stirring to obtain a washed carbon oxide-coated ternary cathode material;
s3: filtering and drying the carbon oxide-coated ternary cathode material in a vacuum environment to obtain a dried carbon oxide-coated ternary cathode material;
s4: and introducing inert gas, and sintering the dried carbon oxide-coated ternary cathode material S3 to obtain the carbon-coated ternary cathode material.
3. The method for preparing the carbon-coated ternary cathode material according to claim 2, wherein the method comprises the following steps: in S1, the submicron ternary cathode material is prepared by the following method:
according to x: y: taking nickel acetate tetrahydrate, cobalt acetate tetrahydrate and manganese acetate tetrahydrate according to the molar ratio of 1-x-y; and dispersing it in a dispersion of 3: 2, in the ethanol water solution, the solid content of the obtained solution is 8-15%; continuously stirring for 3-8 hours at 65 ℃, and adding acetic acid until the mixture becomes gel; then putting the gel into a muffle furnace, heating to 500-600 ℃ at a heating rate of 4-6 ℃/min, and calcining for 2-4 h to obtain a nickel-cobalt-manganese precursor; and mixing the prepared nickel-cobalt-manganese precursor with LiNO3 according to the weight ratio of 1.2: 1, mixing in a molar ratio; then heating to 700-900 ℃ at a heating rate of 3 ℃/min, and calcining for 9-12 h.
4. The method for preparing the carbon-coated ternary cathode material according to claim 2, wherein the method comprises the following steps: in step S1, the mass ratio of the ionized water to the ternary cathode material matrix is 1: 1-1: 50; in step S2, the stirring speed is 200 to 450 rpm.
5. The method for preparing the carbon-coated ternary cathode material according to claim 2, wherein the method comprises the following steps: in step S1, the molar ratio of the submicron ternary cathode material to the sum of nitrogen and carbon atoms is 15-25%; the mass ratio of the submicron ternary cathode material to the deionized water is 1: 45.
6. the method for preparing the carbon-coated ternary cathode material according to claim 2, wherein the method comprises the following steps: in step S2, the oxidizing atmosphere is an oxygen atmosphere or an air atmosphere, the flow rate of the oxidizing atmosphere is 5 to 30L/min, the stirring speed is 500 to 1000rpm/min, and the stirring time is 60 to 180 min.
7. The method for preparing the carbon-coated ternary cathode material according to claim 2, wherein the method comprises the following steps: in step S3, the vacuum drying temperature is 50-150 ℃, the vacuum degree is 50-150 pa, the drying time is 6-48 h, and the temperature rise rate at high temperature is 0.5-4 ℃/min.
8. The method for preparing the carbon-coated ternary cathode material according to claim 2, wherein the method comprises the following steps: in step S4, the inert gas is argon or nitrogen, the gas flow is 5-30L/min, the temperature rise rate at high temperature is 1-4 ℃/min, the temperature rise rate at high temperature is 300-.
9. The method for preparing the carbon-coated ternary cathode material according to claim 2, wherein the method comprises the following steps: the ternary cathode material has a chemical formula of LiNi1-x-yCoxMyO2, wherein x is more than or equal to 0.1 and less than or equal to 0.25, y is more than or equal to 0.05 and less than or equal to 0.3, and M comprises one or more of manganese and aluminum.
10. The method for preparing the carbon-coated ternary cathode material according to claim 2, wherein the method comprises the following steps: the mass of the carbon coating layer accounts for 0.5-5% of the total mass of the carbon-coated ternary cathode material; the carbon compound is reticular nitrogen-doped carbon compound porphyrin.
CN202011388028.9A 2020-12-02 2020-12-02 Carbon-coated ternary cathode material and preparation method thereof Pending CN112349897A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113896254A (en) * 2021-09-29 2022-01-07 陕西君普新航科技有限公司 Processing method for coating carbon on surface of ternary positive electrode material of lithium ion battery and combustion device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113896254A (en) * 2021-09-29 2022-01-07 陕西君普新航科技有限公司 Processing method for coating carbon on surface of ternary positive electrode material of lithium ion battery and combustion device

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