CN113212902A - Lithium battery packaging production process - Google Patents
Lithium battery packaging production process Download PDFInfo
- Publication number
- CN113212902A CN113212902A CN202110611361.XA CN202110611361A CN113212902A CN 113212902 A CN113212902 A CN 113212902A CN 202110611361 A CN202110611361 A CN 202110611361A CN 113212902 A CN113212902 A CN 113212902A
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- China
- Prior art keywords
- vacuum
- lithium battery
- packaging bag
- vacuum cavity
- vacuum chamber
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
- B65B65/003—Packaging lines, e.g. general layout
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
- B65B51/146—Closing bags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
- B65B59/003—Arrangements to enable adjustments related to the packaging material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a lithium battery packaging production process, which is characterized by comprising the following steps: the vacuum chamber performs closed-loop movement, and in a closed-loop movement process, the method comprises the following action steps that a, a packaging bag filled with a lithium battery is grabbed into the vacuum chamber and clamped by a machine clamp assembly in the vacuum chamber, then the opening of the packaging bag is opened, and the vacuum chamber is closed; b. vacuumizing the vacuum cavity; c. when the vacuum degree in the vacuum cavity reaches a set value, the liquid adding pipe is used for adding liquid, and the vacuum of the vacuum cavity is destroyed; d. repeating the step b and the step c for a plurality of times; e. after the last liquid adding is finished, vacuumizing the vacuum cavity again; f. the heat-sealing assembly in the vacuum cavity seals the packaging bag; g. the vacuum chamber is opened, the clamp assembly releases the clamp on the packaging bag, and the packaging bag is sent out of the vacuum chamber. The invention can realize the quick absorption of the lithium battery to the electrolyte solution, improve the production speed and accurately control the addition of the electrolyte solution so as to ensure the quality of the lithium battery.
Description
Technical Field
The invention relates to a packaging production process of a lithium battery.
Background
The lithium battery is a battery using lithium metal or lithium alloy as a negative electrode material and using a nonaqueous electrolyte solution, and the lithium battery needs to be internally filled with the nonaqueous electrolyte in the production process. At present, the work of filling the electrolyte of lithium batteries is such that: the lithium battery is put into a packaging bag made of aluminum foil, the packaging bag is put into a special die, after the electrolyte solution required by the lithium battery is added into the packaging bag at one time, the die is vacuumized, and finally the packaging bag is sealed. The disadvantages are that: firstly, the lithium battery has low absorption speed to the electrolyte solution, low working efficiency and low production speed; secondly, the required electrolyte solution is added at one time, the packaging bag needs a larger accommodating space, namely, more allowance needs to be reserved at the position above a sealing line at the bag opening of the packaging bag, so that packaging materials are wasted, and the packaging materials are expensive, so that the production cost is increased; thirdly, the electrolyte solution easily overflows the package bag, resulting in the deviation of the amount of the electrolyte solution absorbed by the lithium battery, and the quality of the lithium battery is difficult to be well guaranteed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a lithium battery packaging production process which can realize the quick absorption of a lithium battery on an electrolyte solution, improve the production speed and accurately control the addition of the electrolyte solution so as to ensure the quality of the lithium battery.
The invention is implemented by the following technical scheme:
the lithium battery packaging production process is characterized by comprising the following steps: the vacuum chamber performs closed-loop movement, and in a closed-loop movement process, the method comprises the following action steps that a, a packaging bag filled with a lithium battery is grabbed into the vacuum chamber and clamped by a machine clamp assembly in the vacuum chamber, then the opening of the packaging bag is opened, and the vacuum chamber is closed; b. vacuumizing the vacuum cavity; c. when the vacuum degree in the vacuum cavity reaches a set value, liquid is added through the liquid adding pipe, an electrolyte solution enters the packaging bag and is rapidly absorbed by the lithium battery in the high-vacuum atmosphere environment, and then outside air enters the vacuum cavity to destroy the vacuum of the vacuum cavity; d. repeating the step b and the step c for a plurality of times, and ensuring that the total amount of the electrolyte solution of all secondary liquid adding is equal to that required by one lithium battery; e. after the last liquid adding is finished, vacuumizing the vacuum cavity again; f. the heat-sealing assembly in the vacuum cavity seals the packaging bag; g. the vacuum chamber is opened, the clamp assembly releases the clamp on the packaging bag, and the packaging bag is sent out of the vacuum chamber.
According to the lithium battery packaging production process of the technical scheme, in the cycle process of packaging and producing the lithium battery, vacuumizing and electrolyte solution adding actions are carried out for many times, the vacuumizing and the electrolyte solution adding actions are carried out alternately, and meanwhile, during the liquid adding work, the electrolyte solution can enter a lithium battery packaging bag at the first time and is quickly absorbed by the lithium battery in a high-vacuum atmosphere environment, and then outside air enters a vacuum cavity later to destroy the vacuum in the vacuum cavity; in the packaging production process of the lithium battery, the continuous pumping action is actually finished in the vacuum cavity, so that the electrolyte solution is quickly absorbed by the lithium battery, and the packaging production speed of the lithium battery is greatly improved; in addition, because liquid feeding action many times has been carried out, the liquid feeding volume toward lithium cell wrapping bag in every turn can be less, not only does benefit to the quick absorption of lithium cell, and electrolyte solution can not be excessive moreover to the addition of accurate control electrolyte solution is with better assurance lithium cell quality.
Preferably, the steps b and c are carried out four times each, and the adding amount of each step c is one fourth of that of one lithium battery.
Preferably, the vacuum degree is 0.02-0.10MPa after the vacuum chamber is vacuumized.
Drawings
The invention has the following drawings:
fig. 1 is a perspective view illustrating a lithium battery packing machine embodying the present invention,
figure 2 is a top directional view of figure 1,
figure 3 is a connection structure diagram of the turntable and the vacuum cavity component of the lithium battery packaging machine,
figure 4 is another directional view of figure 3,
figure 5 is a side plan view of figure 3,
figure 6 is a side plan view of figure 4,
figure 7 is a schematic structural diagram of a vacuum chamber assembly of a lithium battery packaging machine,
figure 8 is a rear view in elevation of figure 7,
figure 9 is a structural schematic diagram of a machine clamp assembly of the lithium battery packaging machine,
figure 10 is a side view of a vacuum chamber assembly of a lithium battery packaging machine in a closed state,
figure 11 is a longitudinal cross-sectional view of the vacuum chamber of figure 10,
fig. 12 is a longitudinal sectional view of the vacuum chamber cover of fig. 10.
Detailed Description
As shown in fig. 1-12, the lithium battery packaging machine for implementing the lithium battery packaging production process of the invention comprises a closed loop conveying track, wherein the closed loop conveying track is a circular track, the circular track is formed by a rotary table 1 which rotates in an indexing way, sixteen stations including an upper bag station a, a bag opening station B, five vacuumizing stations C, four liquid adding and exhausting stations D, a sealing station E and a lower bag station F are arranged on the outer circumference of the rotary table 1, the vacuumizing stations C and the liquid adding and exhausting stations D are arranged in an inserting way, each station is correspondingly provided with a vacuum cavity assembly, each vacuum cavity assembly is enclosed by a vacuum cavity 5 and a vacuum cavity cover 6 together, the vacuum cavity 5 is fixedly connected with the rotary table 1, the vacuum cavity cover 6 is arranged on the vacuum cavity 5 in a turnover way, the vacuum cavity cover 6 is connected with a turnover arm 21, the turnover arm 21 is connected with a second roller 12 through a turnover arm linkage structure 15, the second roller 12 is arranged on the second cam plate 11 in a rolling manner, and the second cam plate 11 is fixedly arranged. Set up in the vacuum cavity and have cartridge 16 and heat-seal subassembly, the vacuum cavity meets the intercommunication through vacuum tube 18 and packagine machine's vacuum distribution dish 7, insert liquid feeding pipe 20 in the vacuum cavity, liquid feeding pipe 20 can move about from top to bottom and insert and locate the vacuum cavity, promote by liquid feeding pipe promotion control element (can choose the cylinder for use), the purpose of above-mentioned design is to let the liquid feeding pipe can stretch into the sack of wrapping bag when the liquid feeding, make the electrolyte solution that gets into the vacuum cavity contact the lithium cell with the fastest speed, and prevent that electrolyte solution is excessive, upwards lifting when the wrapping bag seals simultaneously, avoid causing the interference to sealing the subassembly. The upper port of the liquid feeding pipe 20 is provided with an upper open type liquid storage pipe 26, a cut-off rod 27 is inserted into the liquid storage pipe 26 to block the communication between the bottom of the liquid storage pipe 26 and the liquid feeding pipe 20, the cut-off rod 27 is movably arranged up and down and is pushed by a cut-off rod pushing control element (which can adopt an electromagnetic switch), through the design, when the vacuum chamber is vacuumized at a vacuumizing station, electrolyte solution is added into the liquid storage pipe, the cut-off rod blocks the bottom of the liquid storage pipe, and when the liquid feeding pipe reaches a liquid feeding exhaust station, the cut-off rod is lifted, so under the vacuum suction action in the vacuum chamber, the electrolyte solution in the liquid storage pipe can enter a lithium battery packaging bag in the vacuum chamber through the liquid feeding pipe for the first time, the electrolyte solution is quickly absorbed by a lithium battery, then outside air enters the vacuum chamber through the liquid feeding pipe, the vacuum in the vacuum chamber is broken, and the vacuum chamber is continuously vacuumized at the next vacuumizing station, the electrolyte solution is added into the liquid storage tube again. The machine clamp assembly 16 comprises a left machine clamp and a right machine clamp, the left machine clamp 161 can be arranged in a vacuum cavity in a swinging mode and fixedly connected with a left toothed plate 30, the right machine clamp 162 can be arranged in the vacuum cavity in a swinging mode and fixedly connected with a right toothed plate 31, the left toothed plate and the right toothed plate are in transmission meshing, the left toothed plate 30 is connected with a toothed plate push rod 17, the toothed plate push rod 17 is connected with a first idler wheel 9 through a toothed plate push rod linkage structure 10, the first idler wheel 9 is arranged on a first cam disc 8 in a rolling mode, the upper position and the lower position of the first cam disc 8 can be adjusted, through the design, when a cam curve of the first cam disc at the position of the first idler wheel in the rolling process changes, the toothed plate push rod can push the toothed plate to move, and the left machine clamp and the right machine clamp are controlled to tighten and loosen the bag opening of the packaging bag; in addition, when the up-and-down position of the first cam plate is adjusted, the distance between the left machine clamp and the right machine clamp can be changed, so that the tightening and loosening of packaging bags with different specifications and sizes can be quickly adapted. The left machine clamp 161 is connected with the clamp opening roller 29, the right machine clamp 162 is connected with the clamp opening roller 33, clamp opening control rods 13 and 14 which can move up and down are arranged at the bag feeding station and the bag discharging station to push the clamp opening rollers, so that the left machine clamp and the right machine clamp are opened, the up and down movement of the clamp opening control rods 13 and 14 is controlled and pushed by a clamp opening cam, when the clamp opening control rods 13 and 14 move upwards, the seven-shaped plate 28 is pushed to swing, and the transverse rod 32 connected with the seven-shaped plate 28 pushes the clamp opening rollers 29 and 33 forwards. The heat-sealing assembly comprises a front ironing head 19 and a rear ironing head 22, the rear ironing head 22 can be movably arranged in the vacuum cavity 5 in the front-back direction and is pushed by an ironing head cylinder 23, the ironing head cylinder 23 is installed on the back surface of the vacuum cavity 5, the front ironing head 19 can be movably arranged in the vacuum cavity cover 6 in the front-back direction, the front ironing head 19 is connected with an ironing roller 25 through a round rod shaft 24, an ironing head pushing member pushes the ironing roller 25 to push the front ironing head 19 to move at a sealing station, through the design, when a vacuum cavity needing to be sealed by a packaging bag reaches the sealing station, the ironing roller can be pushed by the ironing head pushing member, the front ironing head moves towards the rear ironing head direction, meanwhile, the rear ironing head moves towards the front ironing head direction under the pushing of the ironing head cylinder, the front ironing head and the rear ironing head are in pressing contact with each other, the sealing action of the packaging bag is completed, and the structure is simple.
The lithium battery packaging machine realizes the lithium battery packaging production process of the invention as follows: the rotary table 1 rotates in an indexing manner, the vacuum cavity moves in a circular closed loop along with the rotary table, and in a circular closed loop movement process, the vacuum cavity finishes the following action steps that a, a bag feeding station A is provided, a vacuum cavity cover 6 is in an open state, a bag feeding mechanism 4 clamps a packaging bag filled with a lithium battery from a movable bag bin 2 and then sends the packaging bag into the vacuum cavity, a machine clamp assembly 16 clamps the packaging bag, then the rotary table 1 rotates, a left machine clamp and a right machine clamp are close to each other at a bag opening station B, the bag opening of the packaging bag is opened, then the vacuum cavity cover 6 is closed, and the vacuum cavity is closed; b. at the first vacuumizing station C, vacuumizing is performed in the vacuum cavity, and meanwhile electrolyte solution required by one fourth of each lithium battery is injected into the liquid storage pipe 26; c. when the vacuum degree in the vacuum cavity reaches a set value (minus 0.02-0.10 Mpa), the cutoff rod 27 is lifted at the first liquid adding and exhausting station, the electrolyte solution in the liquid storage pipe 26 enters a lithium battery packaging bag through the liquid adding pipe 20 for the first time and is quickly absorbed by a lithium battery in a high vacuum environment, and then outside air immediately enters the vacuum cavity through the liquid adding pipe to destroy the vacuum of the vacuum cavity; d. repeating the step b and the step c for three times at a subsequent vacuumizing station and a liquid adding and exhausting station, wherein the liquid adding amount in the step c is one fourth of that required by one lithium battery, so as to ensure that the total amount of the electrolyte solution added in the step c for four times is equal to that required by one lithium battery; e. after the last liquid adding is finished, vacuumizing the vacuum cavity again; f. at a sealing station E, sealing the packaging bag by a heat sealing assembly in the vacuum cavity; g. at the bag discharging station F, the vacuum cavity cover 6 is opened, the machine clamp assembly 16 releases the clamping of the packaging bag, and the lithium battery package which finishes liquid adding is clamped by the bag discharging assembly and is conveyed to the output platform 3 to be sent out.
Claims (3)
1. The lithium battery packaging production process is characterized by comprising the following steps: the vacuum chamber performs closed-loop movement, and in a closed-loop movement process, the method comprises the following action steps that a, a packaging bag filled with a lithium battery is grabbed into the vacuum chamber and clamped by a machine clamp assembly in the vacuum chamber, then the opening of the packaging bag is opened, and the vacuum chamber is closed; b. vacuumizing the vacuum cavity; c. when the vacuum degree in the vacuum cavity reaches a set value, liquid is added through the liquid adding pipe, an electrolyte solution enters the packaging bag and is rapidly absorbed by the lithium battery in the high-vacuum atmosphere environment, and then outside air enters the vacuum cavity to destroy the vacuum of the vacuum cavity; d. repeating the step b and the step c for a plurality of times, and ensuring that the total amount of the electrolyte solution of all secondary liquid adding is equal to that required by one lithium battery; e. after the last liquid adding is finished, vacuumizing the vacuum cavity again; f. the heat-sealing assembly in the vacuum cavity seals the packaging bag; g. the vacuum chamber is opened, the clamp assembly releases the clamp on the packaging bag, and the packaging bag is sent out of the vacuum chamber.
2. The lithium battery pack production process as claimed in claim 1, wherein: and step b and step c are carried out four times respectively, and the adding amount of each time in step c is one fourth of that of one lithium battery.
3. The lithium battery pack production process as claimed in claim 1, wherein: after vacuum pumping in the vacuum cavity, the vacuum degree is 0.02-0.10 Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110611361.XA CN113212902A (en) | 2021-06-02 | 2021-06-02 | Lithium battery packaging production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110611361.XA CN113212902A (en) | 2021-06-02 | 2021-06-02 | Lithium battery packaging production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113212902A true CN113212902A (en) | 2021-08-06 |
Family
ID=77082576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110611361.XA Withdrawn CN113212902A (en) | 2021-06-02 | 2021-06-02 | Lithium battery packaging production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113212902A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4529020A (en) * | 1980-01-29 | 1985-07-16 | General Electric Company | Method and apparatus for pressure filling an electrochemical cell |
| CN1103994A (en) * | 1993-09-03 | 1995-06-21 | 东芝电池株式会社 | Electrolyte injection apparatus |
| CN2760767Y (en) * | 2004-12-13 | 2006-02-22 | 武汉孚特电子科技有限公司 | Battery vacuum electrolyte filling device |
| CN102496691A (en) * | 2011-12-26 | 2012-06-13 | 东莞新能源科技有限公司 | Vacuum liquid filling equipment for soft-package battery |
| US20150162594A1 (en) * | 2012-07-05 | 2015-06-11 | O.M.C. Co., Ltd. | Injection method for injecting electrolyte and injection apparatus therefor |
| CN106571442A (en) * | 2016-11-02 | 2017-04-19 | 天津市捷威动力工业有限公司 | Liquid injection device and liquid injection method of polymer lithium battery electrolyte |
| CN107316973A (en) * | 2017-07-11 | 2017-11-03 | 苏州百拓智能装备有限公司 | Lithium battery Soft Roll filling machine |
-
2021
- 2021-06-02 CN CN202110611361.XA patent/CN113212902A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4529020A (en) * | 1980-01-29 | 1985-07-16 | General Electric Company | Method and apparatus for pressure filling an electrochemical cell |
| CN1103994A (en) * | 1993-09-03 | 1995-06-21 | 东芝电池株式会社 | Electrolyte injection apparatus |
| CN2760767Y (en) * | 2004-12-13 | 2006-02-22 | 武汉孚特电子科技有限公司 | Battery vacuum electrolyte filling device |
| CN102496691A (en) * | 2011-12-26 | 2012-06-13 | 东莞新能源科技有限公司 | Vacuum liquid filling equipment for soft-package battery |
| US20150162594A1 (en) * | 2012-07-05 | 2015-06-11 | O.M.C. Co., Ltd. | Injection method for injecting electrolyte and injection apparatus therefor |
| CN106571442A (en) * | 2016-11-02 | 2017-04-19 | 天津市捷威动力工业有限公司 | Liquid injection device and liquid injection method of polymer lithium battery electrolyte |
| CN107316973A (en) * | 2017-07-11 | 2017-11-03 | 苏州百拓智能装备有限公司 | Lithium battery Soft Roll filling machine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20210806 |