CN112467129A - Preparation method of conductive agent material capable of improving comprehensive performance of battery - Google Patents
Preparation method of conductive agent material capable of improving comprehensive performance of battery Download PDFInfo
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- CN112467129A CN112467129A CN202011203010.7A CN202011203010A CN112467129A CN 112467129 A CN112467129 A CN 112467129A CN 202011203010 A CN202011203010 A CN 202011203010A CN 112467129 A CN112467129 A CN 112467129A
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- parts
- battery
- conductive agent
- material capable
- lithium
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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
- H01M4/52—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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- 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
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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
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
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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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
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- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a conductive agent material capable of improving comprehensive performance of a battery, which comprises 100 parts of lithium cobaltate, 100 parts of nickel cobalt lithium manganate, 100 parts of lithium manganate, 50 parts of carbon nano tubes, 50 parts of a conductive agent and 2 parts of polyvinylidene fluoride. The invention belongs to the technical field of development and application of lithium battery materials, and particularly relates to a preparation method of a conductive agent material capable of improving the comprehensive performance of a battery, which can reduce the comprehensive internal resistance value of the battery, increase the capacity value of the battery under the same volume by increasing the proportion of active substances, and prolong the cycle service life of the battery.
Description
Technical Field
The invention belongs to the technical field of development and application of lithium battery materials, and particularly relates to a preparation method of a conductive agent material capable of improving the comprehensive performance of a battery.
Background
The prior SP is prepared by a traditional scheme, the particle size range is about 40nm, the specific surface area is about 65m2/g3, the DBP oil absorption value is 110-160 ml/100g, and the recovery is about 0.5 Wt%; the SP conductive agent material prepared by adopting the new process of pyrolysis has the recovery value within 0.1Wt percent, the content of metal and other impurities is far lower than that of the conventional process, the comprehensive performance of the material is improved, the oil absorption value of the battery can reach 210ml/100g, the original anode material preparation process is that the comprehensive proportion of the conductive liquid, the linear conductive or chain or grape-shaped conductive agent is independently used in a range of 1.5-3.5%, the comprehensive addition proportion of the CNT + SP new preparation scheme can be reduced to a range of 0.6-1.5% and the conductivity of a pole piece is better, the active characteristic content is improved by a proportion of 0.9-2.0%, the battery capacity is further improved, the battery is internally reduced by about 30% and the cycle performance is improved by a proportion of about 10%, the internal resistance of the existing conductive material is large due to insufficient conductivity, the battery capacity cannot break through the existing value, and the cycle performance of the existing battery is difficult to improve by the existing system material.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the preparation method of the conductive agent material capable of improving the comprehensive performance of the battery, so that the comprehensive internal resistance value of the battery is reduced, the capacity value of the battery under the same volume is increased by increasing the proportion of active substances, and the cycle service life of the battery is prolonged.
The technical scheme adopted by the invention is as follows: the conductive agent material capable of improving the comprehensive performance of the battery comprises 100 parts of lithium cobaltate, 100 parts of nickel cobalt lithium manganate, 100 parts of lithium manganate, 50 parts of carbon nano tube, 50 parts of conductive agent and 2 parts of polyvinylidene fluoride.
A preparation method of a conductive agent material capable of improving the comprehensive performance of a battery comprises the following steps:
the method comprises the following steps: uniformly mixing lithium cobaltate, lithium nickel cobalt manganese oxide and lithium manganate to prepare solid solution slurry;
step two: adding polyvinylidene fluoride into the solid solution slurry, and uniformly mixing;
step three: adding the carbon nano tube and the conductive agent into the second step, and uniformly mixing;
step four: and then the prepared solid solution slurry is uniformly coated on the upper surface and the lower surface of the aluminum foil.
The invention with the structure has the following beneficial effects: the preparation method of the conductive agent material capable of improving the comprehensive performance of the battery reduces the comprehensive internal resistance value of the battery, increases the capacity value of the battery with the same volume by increasing the proportion of active substances, and prolongs the cycle service life of the battery.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments 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; 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.
The preparation method of the conductive agent material capable of improving the comprehensive performance of the battery comprises 100 parts of lithium cobaltate, 100 parts of nickel cobalt lithium manganate, 100 parts of lithium manganate, 50 parts of carbon nano tube, 50 parts of conductive agent and 2 parts of polyvinylidene fluoride.
A preparation method of a conductive agent material capable of improving the comprehensive performance of a battery comprises the following steps:
the method comprises the following steps: uniformly mixing lithium cobaltate, lithium nickel cobalt manganese oxide and lithium manganate to prepare solid solution slurry;
step two: adding polyvinylidene fluoride into the solid solution slurry, and uniformly mixing;
step three: adding the carbon nano tube and the conductive agent into the second step, and uniformly mixing;
step four: and then the prepared solid solution slurry is uniformly coated on the upper surface and the lower surface of the aluminum foil.
When the lithium cobaltate-lithium nickel cobalt manganese oxide composite material is used specifically, a user uniformly mixes 100 parts of lithium cobaltate, 100 parts of lithium nickel cobalt manganese oxide and 100 parts of lithium manganate to prepare solid solution slurry, 2 parts of polyvinylidene fluoride are added into the solid solution slurry and uniformly mixed, 50 parts of carbon nano tubes and 50 parts of conductive agents are added, and finally, the prepared solid solution slurry is uniformly coated on the upper surface and the lower surface of an aluminum foil, so that the whole working process is realized, and the steps are repeated when the lithium nickel cobalt manganese oxide composite material is used next time.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The present invention and the embodiments thereof have been described above, but the description is not limited to the embodiments, and the actual configuration is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (2)
1. The conductive agent material capable of improving the comprehensive performance of the battery is characterized by comprising the following components in parts by weight: 100 parts of lithium cobaltate, 100 parts of nickel cobalt lithium manganate, 100 parts of lithium manganate, 50 parts of carbon nano tube, 50 parts of conductive agent and 2 parts of polyvinylidene fluoride.
2. A preparation method of a conductive agent material capable of improving the comprehensive performance of a battery is characterized by comprising the following steps:
the method comprises the following steps: uniformly mixing lithium cobaltate, lithium nickel cobalt manganese oxide and lithium manganate to prepare solid solution slurry;
step two: adding polyvinylidene fluoride into the solid solution slurry, and uniformly mixing;
step three: adding the carbon nano tube and the conductive agent into the second step, and uniformly mixing;
step four: and then the prepared solid solution slurry is uniformly coated on the upper surface and the lower surface of the aluminum foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011203010.7A CN112467129A (en) | 2020-11-02 | 2020-11-02 | Preparation method of conductive agent material capable of improving comprehensive performance of battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011203010.7A CN112467129A (en) | 2020-11-02 | 2020-11-02 | Preparation method of conductive agent material capable of improving comprehensive performance of battery |
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| Publication Number | Publication Date |
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| CN112467129A true CN112467129A (en) | 2021-03-09 |
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| CN202011203010.7A Pending CN112467129A (en) | 2020-11-02 | 2020-11-02 | Preparation method of conductive agent material capable of improving comprehensive performance of battery |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425576A (en) * | 2008-12-02 | 2009-05-06 | 黄德欢 | Preparing method of highly conductive lithium iron anode material of lithium ionic cell |
| CN104143637A (en) * | 2013-05-07 | 2014-11-12 | 万向电动汽车有限公司 | A high-energy-density power battery |
| CN105161684A (en) * | 2015-08-31 | 2015-12-16 | 无锡市嘉邦电力管道厂 | Lithium battery positive paste and preparation method thereof |
| CN105470512A (en) * | 2016-01-15 | 2016-04-06 | 河南比得力高新能源科技有限公司 | Preparation process for power lithium ion battery slurry |
| CN106784846A (en) * | 2017-01-13 | 2017-05-31 | 湖南高远电池有限公司 | A kind of high multiplying power lithium ion battery positive pole and its preparation method and application |
| CN107732242A (en) * | 2017-08-16 | 2018-02-23 | 深圳市沃特玛电池有限公司 | A kind of preparation method of lithium ion battery anode glue size |
| CN108134066A (en) * | 2017-12-22 | 2018-06-08 | 佛山市实达科技有限公司 | Lithium ion battery anode glue size and preparation method, lithium ion battery and preparation method |
| CN109962240A (en) * | 2017-12-25 | 2019-07-02 | 中国电子科技集团公司第十八研究所 | Method for preparing anode slurry for lithium carbon fluoride battery with carbon nanotube as conductive agent |
-
2020
- 2020-11-02 CN CN202011203010.7A patent/CN112467129A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425576A (en) * | 2008-12-02 | 2009-05-06 | 黄德欢 | Preparing method of highly conductive lithium iron anode material of lithium ionic cell |
| CN104143637A (en) * | 2013-05-07 | 2014-11-12 | 万向电动汽车有限公司 | A high-energy-density power battery |
| CN105161684A (en) * | 2015-08-31 | 2015-12-16 | 无锡市嘉邦电力管道厂 | Lithium battery positive paste and preparation method thereof |
| CN105470512A (en) * | 2016-01-15 | 2016-04-06 | 河南比得力高新能源科技有限公司 | Preparation process for power lithium ion battery slurry |
| CN106784846A (en) * | 2017-01-13 | 2017-05-31 | 湖南高远电池有限公司 | A kind of high multiplying power lithium ion battery positive pole and its preparation method and application |
| CN107732242A (en) * | 2017-08-16 | 2018-02-23 | 深圳市沃特玛电池有限公司 | A kind of preparation method of lithium ion battery anode glue size |
| CN108134066A (en) * | 2017-12-22 | 2018-06-08 | 佛山市实达科技有限公司 | Lithium ion battery anode glue size and preparation method, lithium ion battery and preparation method |
| CN109962240A (en) * | 2017-12-25 | 2019-07-02 | 中国电子科技集团公司第十八研究所 | Method for preparing anode slurry for lithium carbon fluoride battery with carbon nanotube as conductive agent |
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Application publication date: 20210309 |
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