CN112751091A - Preparation method of cylindrical lithium battery with high production efficiency - Google Patents
Preparation method of cylindrical lithium battery with high production efficiency Download PDFInfo
- Publication number
- CN112751091A CN112751091A CN202110054570.9A CN202110054570A CN112751091A CN 112751091 A CN112751091 A CN 112751091A CN 202110054570 A CN202110054570 A CN 202110054570A CN 112751091 A CN112751091 A CN 112751091A
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- Prior art keywords
- machine
- pole piece
- battery
- coating
- lithium battery
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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
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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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
- H01M10/04—Construction or manufacture in general
- H01M10/0422—Cells or battery with cylindrical casing
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a preparation method of a cylindrical lithium battery with high production efficiency, which comprises the following steps of S1: preparing materials: adding the ingredients of the anode and the cathode, the binder and the conductive agent into a stirrer for mixing and stirring; s2: coating: uniformly coating the prepared slurry on two surfaces of a positive plate and a negative plate through a coating machine; s3: and (3) pair roller: continuously rolling the coated pole piece by using a double-roller machine, adjusting the pressure of the double-roller machine until the thickness of the pole piece meets the requirement, and then cutting the pole piece into pole piece rolls with specified sizes by using a dividing machine; s4: tabletting: carrying out tab welding on the slit electrode sheet coil by a sheet making machine; s5: winding: the preparation method has the advantages of short flow and simple operation, and can realize simple and rapid production and manufacture and effectively improve the production efficiency of the cylindrical lithium battery.
Description
Technical Field
The invention relates to the technical field of battery preparation, in particular to a preparation method of a cylindrical lithium battery with high production efficiency.
Background
Lithium batteries are mainly used in production and life at present, play an extremely important role, and are widely applied to energy storage power systems of hydraulic power, firepower, wind power, solar power stations and the like, uninterruptible power supplies of post and telecommunications, and a plurality of fields of electric tools, electric bicycles, electric motorcycles, electric automobiles, military equipment, aerospace and the like. Lithium ion batteries have also gained widespread use with their unique performance advantages in portable electrical appliances such as portable computers, video cameras, mobile communications. But currently cylindrical lithium batteries
Disclosure of Invention
In order to improve the cruising ability of the cylindrical lithium battery, the invention provides a preparation method of the cylindrical lithium battery with high production efficiency, and the specific technical scheme is as follows:
a preparation method of a cylindrical lithium battery with high production efficiency comprises the following steps:
s1: preparing materials: adding the ingredients of the anode and the cathode, the binder and the conductive agent into a stirrer for mixing and stirring;
s2: coating: uniformly coating the prepared slurry on two surfaces of a positive plate and a negative plate through a coating machine;
s3: and (3) pair roller: continuously rolling the coated pole piece by using a double-roller machine, adjusting the pressure of the double-roller machine until the thickness of the pole piece meets the requirement, and then cutting the pole piece into pole piece rolls with specified sizes by using a dividing machine;
s4: tabletting: carrying out tab welding on the slit electrode sheet coil by a sheet making machine;
s5: winding: winding the positive plate roll, the negative plate roll and the diaphragm paper into a cylindrical roll core by a winding machine, and filling the cylindrical roll core into a steel shell to form a battery cell;
s6: liquid injection: baking the battery cell at 85-105 ℃ in high vacuum for 12-16H, then charging electrolyte into the battery cell through a liquid injection machine, and then shaping and sealing;
s7: packaging: and detecting the voltage and the internal resistance of the battery core after the liquid injection is finished, and spraying code and packaging the cylindrical battery.
Further, step S4 includes gluing the tabs on the pole pieces.
Further, step S5 includes performing roll grooving on the cell steel casing.
Further, in step S6, the battery is covered with a PVC sleeve.
By adopting the technical scheme, the method has the following beneficial effects:
the preparation method has the advantages of short flow and simple operation, and can realize simple and rapid production and manufacture and effectively improve the production efficiency of the cylindrical lithium 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 of the 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.
A preparation method of a cylindrical lithium battery with high production efficiency comprises the following steps:
s1: preparing materials: and adding the ingredients of the anode and the cathode, the binder and the conductive agent into a stirrer for mixing and stirring.
S2: coating: and uniformly coating the prepared slurry on two surfaces of the positive plate and the negative plate through a coating machine.
S3: and (3) pair roller: and continuously rolling the coated pole piece by using a double-roller machine, adjusting the pressure of the double-roller machine until the thickness of the pole piece meets the requirement, and then cutting the pole piece into pole piece rolls with specified sizes by using a dividing machine.
S4: tabletting: and (4) carrying out tab welding on the slit electrode sheet coil through a sheet making machine.
S5: winding: and rolling the positive plate roll, the negative plate roll and the diaphragm paper into a cylindrical roll core by a winding machine, and filling the cylindrical roll core into a steel shell to form the battery cell.
S6: baking the battery cell at 85 ℃ in high vacuum for 16H, then charging electrolyte into the battery cell through a liquid injection machine, and then shaping and sealing;
s7: packaging: and detecting the voltage and the internal resistance of the battery core after the liquid injection is finished, and spraying code and packaging the cylindrical battery.
Example 2
The application discloses a preparation method of a cylindrical lithium battery with high production efficiency, which comprises the following steps.
S1: preparing materials: and adding the ingredients of the anode and the cathode, the binder and the conductive agent into a stirrer for mixing and stirring.
S2: coating: and uniformly coating the prepared slurry on two surfaces of the positive plate and the negative plate through a coating machine.
S3: and (3) pair roller: and continuously rolling the coated pole piece by using a double-roller machine, adjusting the pressure of the double-roller machine until the thickness of the pole piece meets the requirement, and then cutting the pole piece into pole piece rolls with specified sizes by using a dividing machine.
S4: tabletting: and (4) carrying out tab welding on the slit electrode sheet coil through a sheet making machine.
S5: winding: and rolling the positive plate roll, the negative plate roll and the diaphragm paper into a cylindrical roll core by a winding machine, and filling the cylindrical roll core into a steel shell to form the battery cell.
S6: baking the battery cell at 95 ℃ in high vacuum for 14H, then charging electrolyte into the battery cell through a liquid injection machine, and then shaping and sealing;
s7: packaging: and detecting the voltage and the internal resistance of the battery core after the liquid injection is finished, and spraying code and packaging the cylindrical battery.
Example 3
The application discloses a preparation method of a cylindrical lithium battery with high production efficiency, which comprises the following steps.
S1: preparing materials: and adding the ingredients of the anode and the cathode, the binder and the conductive agent into a stirrer for mixing and stirring.
S2: coating: and uniformly coating the prepared slurry on two surfaces of the positive plate and the negative plate through a coating machine.
S3: and (3) pair roller: continuously rolling the coated pole piece by a pair roller machine, and adjusting the pressure of the pair roller machine until the thickness of the pole piece is consistent with the thickness of the pole piece
And (3) meeting the requirement, and then cutting into pole piece rolls with specified sizes by a separator.
S4: tabletting: and (4) carrying out tab welding on the slit electrode sheet coil through a sheet making machine.
S5: winding: and rolling the positive plate roll, the negative plate roll and the diaphragm paper into a cylindrical roll core by a winding machine, and filling the cylindrical roll core into a steel shell to form the battery cell.
S6: baking the battery cell at 105 ℃ in high vacuum for 12H, then charging electrolyte into the battery cell through a liquid injection machine, and then shaping and sealing;
s7: packaging: and detecting the voltage and the internal resistance of the battery core after the liquid injection is finished, and spraying code and packaging the cylindrical battery.
Having thus described the basic principles and principal features of the invention, it will be appreciated by those skilled in the art that the invention is not limited by the embodiments described above, which are given by way of illustration only, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (4)
1. A preparation method of a cylindrical lithium battery with high production efficiency is characterized by comprising the following steps:
s1: preparing materials: adding the ingredients of the anode and the cathode, the binder and the conductive agent into a stirrer for mixing and stirring;
s2: coating: uniformly coating the prepared slurry on two surfaces of a positive plate and a negative plate through a coating machine;
s3: and (3) pair roller: continuously rolling the coated pole piece by using a double-roller machine, adjusting the pressure of the double-roller machine until the thickness of the pole piece meets the requirement, and then cutting the pole piece into pole piece rolls with specified sizes by using a dividing machine;
s4: tabletting: carrying out tab welding on the slit electrode sheet coil by a sheet making machine;
s5: winding: winding the positive plate roll, the negative plate roll and the diaphragm paper into a cylindrical roll core by a winding machine, and filling the cylindrical roll core into a steel shell to form a battery cell;
s6: liquid injection: baking the battery cell at 85-105 ℃ in high vacuum for 12-16H, then charging electrolyte into the battery cell through a liquid injection machine, and then shaping and sealing;
s7: packaging: and detecting the voltage and the internal resistance of the battery core after the liquid injection is finished, and spraying code and packaging the cylindrical battery.
2. The method as claimed in claim 1, wherein the step S4 further comprises gluing the tabs on the lithium battery.
3. The method of claim 1, wherein step S5 further comprises rolling grooves on the core steel shell.
4. The method of claim 1, wherein in step S6, the battery is further covered with a PVC sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110054570.9A CN112751091A (en) | 2021-01-15 | 2021-01-15 | Preparation method of cylindrical lithium battery with high production efficiency |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110054570.9A CN112751091A (en) | 2021-01-15 | 2021-01-15 | Preparation method of cylindrical lithium battery with high production efficiency |
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| CN112751091A true CN112751091A (en) | 2021-05-04 |
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| CN202110054570.9A Pending CN112751091A (en) | 2021-01-15 | 2021-01-15 | Preparation method of cylindrical lithium battery with high production efficiency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113903999A (en) * | 2021-10-11 | 2022-01-07 | 三一技术装备有限公司 | Battery cell production line |
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2021
- 2021-01-15 CN CN202110054570.9A patent/CN112751091A/en active Pending
Patent Citations (11)
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| CN105226329A (en) * | 2015-10-20 | 2016-01-06 | 四川科能锂电有限公司 | A kind of lithium battery production technology efficiently |
| CN105470558A (en) * | 2015-12-16 | 2016-04-06 | 山东精工电子科技有限公司 | Cylindrical lithium ion battery and manufacturing method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113903999A (en) * | 2021-10-11 | 2022-01-07 | 三一技术装备有限公司 | Battery cell production line |
| CN113903999B (en) * | 2021-10-11 | 2023-10-24 | 三一技术装备有限公司 | Battery cell production line |
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