Battery Tab Welding Machine is designed for lithium battery electrode preparation processes, integrating multiple functions including unwinding, tab welding, taping, and rewinding in one system. The edge guiding mechanism helps maintain accurate material alignment during operation, reducing material waste and improving production stability.
As a part of Electrode Making Equipment, the machine provides consistent tab welding quality and clean tape application for reliable electrode processing. The touchscreen control interface simplifies operation and allows operators to quickly adjust production parameters without complicated settings.
With stable performance and straightforward operation, this equipment helps battery manufacturers improve electrode preparation efficiency and maintain consistent quality throughout the production process.
Equipment functions
Battery Tab Welding Machine is designed for automatic tab welding and tape application in lithium battery electrode production. As a key part of Electrode Making Equipment, the system integrates tab unwinding, cutting, welding, protective tape application, and electrode rewinding in one automated process.
Equipped with a Panasonic PLC control system, the machine improves production efficiency by reducing manual intervention during electrode processing. It supports precise tab welding, front and rear tape application, and stable rewinding for integration with automatic battery winding machines.
The equipment is suitable for lithium battery electrode manufacturing lines and can work together with electrode rolling and slitting systems to achieve continuous electrode production. An automatic alarm function monitors electrical faults and operating abnormalities, improving equipment safety and maintenance efficiency.
Equipment technical parameters
Model: SZO-80B-N
|
S/N |
Item |
Parameter |
Remark |
|
1 |
Single electrode length |
300-1500mm |
According to customer process |
|
2 |
Tab tape position accuracy |
A: ±0.5mm |
|
|
3 |
tab length precision |
B: ±0.5mm |
|
|
4 |
Tab welding position error |
C: ±0.5mm |
|
|
5 |
Tab welding deflection |
D: ±1° |
|
|
6 |
Tab leakage accuracy |
E: ≤± 0.5 mm |
|
|
7 |
Tab welding tensile force |
≥10N |
Shunla |
|
8 |
Welding head service life |
Positive electrode: 300,000 times of grinding once |
Double-Sided |
|
9 |
Electrode and tab cutting burrs |
electrode ≤0.015, tab ≤0.025 |
|
|
10 |
Tape length accuracy |
±0.5mm |
|
|
1 1 |
Product qualification rate |
9 8 .5% |
|
|
1 2 |
Utilization rate |
95% |
Except for troubleshooting within 10 minutes |
|
1 3 |
Production speed |
18650 battery electrode , production cycle is about 28 - 35 PCS/min ( single tab ) |
to the length and width of the electrode |
Equipment use environment
Machine Dimensions:
2040 (L) × 1050 (W) × 1689 (H) mm
Machine Weight:
Approx. 1100 kg
Power Supply:
AC 220V, single phase
Voltage fluctuation: within ±10%
Rated power: 5 KVA
Compressed Air Requirements:
Air pressure: 0.4–0.7 MPa (4–7 kgf/cm²)
Air consumption: approximately 180 L/min per line, with a utilization rate of 50%
Operating Temperature:
20–35℃
Relative Humidity:
5–55% RH
Operating Environment:
Cleanroom requirement: Class 100,000 or above
The installation area should be free from corrosive gases, liquids, and flammable or explosive substances.
Material specifications and requirements:
1,Material Specifications:
|
Material |
Feeding method |
Material length (mm) |
Material width(mm) |
Material thickness(μm) |
Maximum outer diameter (mm) |
Inner diameter (mm) |
||
|
Size range |
Size range |
tolerance |
Size range |
tolerance |
||||
|
Tab |
Coil |
3 0～ 70 |
3-6 |
0.1 |
100～150 |
2 |
ф 4 00 |
Ф 76.2 |
|
Electrode |
Coil |
300～1500 |
30～ 65 |
0. 1 |
100～280 |
5 |
Ф 4 00 |
ф76.2 |
|
Protective tape |
Coil |
4 0～ 70 |
5～ 25 |
0.2 |
50～80 |
5 |
Ф 180 |
ф76.2 |
2,Material requirements:
1．Battery electrode : intermittent coating battery electrode , electrode aluminum foil thickness 5 ~ 20um , electrode coating roller press continuous slitting into specified width, width error ± 0.2mm, electrode meandering error less than ± 1.0mm /1000mm, and reeled with 3-inch reel core, maximum reel diameter 400mm ; reeling accuracy ± 1.0mm; coating intermittent consistency error < ± 0.5mm (coating, slitting), tab welding blank width at least 2mm wider than tab ;
2．The adhesive tape is pasted along the width of the electrode , the width error of the adhesive tape is ±0.2mm (tape material), and it is not easy to break when opening the adhesive tape;
3．Tab width error: ±0.1mm, tab meander error: 0.2mm/500mm ( tab material).
Notes:
(1) The positive electrode is welded in a long strip;
(2) The detection method is tensile test;
( 3 ) This equipment only provides specification parts of the acceptance model.
Frequently Asked Questions
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What is a battery tab welding machine?
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A battery tab welding machine is a specialized system that joins electrode tabs (thin metal extensions from the current collector) to the cell's terminal structure or busbars, creating a reliable electrical connection with low contact resistance. The most common technologies used are ultrasonic welding, which uses high-frequency vibrations to generate frictional heat and create a solid-state bond without melting the base materials, and laser welding, which offers high precision and speed for robust, hermetic joints. These machines are essential in battery assembly for cylindrical, prismatic, and pouch cells, as weld quality directly affects internal resistance, heat generation, and long-term reliability. Key performance requirements include consistent weld strength, minimal particle generation (to prevent contamination), and precise alignment to avoid damaging the sensitive electrode layers.
What batteries use tab welding technology?
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Ultrasonic welding
Can electrode specifications be customized?
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Yes