Soft pack battery automatic liquid injection sealing machine

CY-BPA-IS1620 Soft pack battery automatic liquid injection sealing machine, compatible with soft pack battery normal pressure liquid injection, normal pressure static, vacuum static, vacuum pre-sealing, and scanning code weighing record and other functions. Equipment floor design, relatively closed to dry gas; The equipment includes feeding pump, cache tank, liquid injection pump, waste liquid pump, four-station turntable, battery material box, liquid injection station, static station, packaging station, scanning station and other units. Compatible soft pack battery size length 75 ~ 180mm, width 75 ~ 300mm (including air bag, air bag at least 60mm long), thickness 0 ~ 20mm; The effective sealing length is Max.180mm, and the temperature uniformity of the head is ±2℃. Standard 6mm wide hard seal head, other widths can be customized.

Product characteristics:

1. It has the functions of normal pressure liquid injection, normal pressure static, vacuum static, vacuum pre-sealing, weighing and scanning code of the soft pack battery, manual loading and unloading, and other processes are fully automatic;

2. Precision electric plunger pump liquid injection, and equipped with electrolyte storage tank, can be vacuized to remove bubbles, to ensure the accuracy of liquid injection;

3. Four-station rotating disk structure, the first station robot automatically fills the battery after liquid injection, and after filling the material box, the following three stations successively complete the normal pressure static, vacuum static and the robot automatic pre-sealing station;

4. Pre-sealing station is double station structure, sealing and loading and unloading can be carried out synchronously to improve efficiency;

5. The sealed battery is automatically sent to the weighing and scanning station by the manipulator, and the data can be automatically recorded and saved;

6. Atmospheric static and vacuum static dual station, long standing time, electrolyte infiltration more fully;

7. Vacuum static station, vacuum degree and static time can be set in stages;

8. Design dry gas inlet and outlet, the whole equipment working area is relatively sealed, to ensure the environmental control in the process of cell production;

9. Hard sealing head, good temperature uniformity, good packaging consistency;

10. Electronic control and structure standard modular design, easy maintenance;

11. Standard equipped with three vacuum pumps and vacuum cache tank, injection suction bag, static, pre-sealed vacuum independent control to prevent mutual influence;

12. Compatible with a certain size of the battery, the box needs to be customized according to the size of the battery;

13.PLC control, HMI operation, easy to use.

Contact information:

If you are interested in our Soft pack battery automatic liquid injection sealing machine, please contact us for more information and a quote.

Phone：+86 136 6380 8508

Email：jason@cysitech.com

Sales manger：Jason.Zhang

WhatsApp:+86 150 3827 2566

Wechat：cykytech

Technical parameters:

 Application case

Experiment preparation

Material preparation: Prepare an appropriate amount of assembled soft-pack lithium battery semi-finished products, including the batteries that have completed the assembly of positive and negative electrode sheets and the initial packaging.

Tools: In addition to the automatic liquid injection sealing machine, prepare auxiliary tools such as gloves, scissors, and rulers.

Environment preparation: Ensure that the operation area is clean and dust-free, and that the temperature and humidity meet the technical requirements to avoid the impact of static electricity and dust. The operating area should be equipped with an inert gas (such as argon) protection system to prevent the electrolyte from reacting in contact with the air.

Experimental procedure

Battery pretreatment:

Place the assembled soft-pack lithium battery semi-finished product on the operating table to check whether there is leakage or other defects.

Confirm the initial packaging effect of the battery, ensure that the aluminum plastic film and the battery body fit well, no bubbles and leakage sealing phenomenon.

Liquid injection parameter setting:

According to the battery specifications and electrolyte type, set the injection parameters of the automatic injection sealer, including injection volume, injection speed and injection pressure.

It can be tested in small batches first and adjusted to the best state before being formally put into production.

Automatic injection:

Place the battery on the work table of the automatic injection sealer to ensure the correct and stable position of the battery.

Start the injection procedure, and the injection needle will be automatically inserted into the injection hole of the battery to accurately inject the specified amount of electrolyte.

After the injection is completed, the injection needle automatically exits to ensure that the electrolyte is evenly distributed inside the battery.

Pre-sealing treatment:

Move the battery after injection to the sealing station to ensure the correct position of the injection hole.

Check whether there is electrolyte residue on the battery surface. If necessary, gently wipe with absorbent paper.

Automatic sealing:

Set sealing parameters, including sealing temperature, sealing time, and sealing pressure.

Start the sealing procedure, and the sealing device will automatically seal the injection hole of the battery. Ensure that the sealing line is continuous, smooth and free of bubbles.

After the sealing is completed, the sealing device is automatically returned and the battery is removed from the workbench.

Quality inspection:

Carefully check each piece of soft pack lithium battery after injection and sealing to ensure that the sealing line has no leakage sealing, no bubbles, no burning and other undesirable phenomena.

Use tools such as microscopes and thickness gauges for detailed inspection and record relevant data.

Performance test:

Some samples were randomly selected for charge-discharge cycle test to evaluate the key indicators such as capacity retention rate and internal resistance.

The test results were recorded and the effects of injection and sealing on battery performance were analyzed.

Result analysis

Through the use of automatic injection sealing machine, the company achieved the following results in the injection and sealing process of soft pack lithium batteries:

Improve the injection accuracy: The high-precision injection system ensures that the injection amount and speed of the electrolyte are highly consistent, avoiding the problem of excessive or insufficient, and improving the internal electrolyte distribution uniformity of the battery.

Enhance the sealing quality: The stable sealing device ensures the continuity and flatness of the sealing line, reduces the leakage sealing and bubble phenomenon, and improves the sealing and safety of the battery.

Improve safety: High quality liquid injection and sealing reduce the safety risks of the battery in the charge and discharge process and improve the safety of the battery.

Improve production efficiency: The automated all-in-one design significantly shortens the time for filling and sealing, improving production efficiency and reducing labor costs.