Die Cutter

Our electrode notching machine is a professional die cutter engineered for lithium battery electrode processing, delivering burr-free (≤15μm) and precise cutting (±0.01mm accuracy) for cathodes/anodes (LFP, NMC, graphite). Compatible with pouch cells, 18650, 21700, and 4680 cylindrical batteries, it suits lab R&D and mass production.
Featuring interchangeable tungsten steel dies, CCD visual alignment, and PLC control, it supports custom notch shapes (U-type/V-type) and adapts to 50-500mm electrode widths. Pneumatic/hydraulic drive options ensure stable operation, even in glove boxes with inert gas for moisture-sensitive materials. It boosts production efficiency while safeguarding battery safety and energy density.

Equipment functions

This machine is mainly used for automatic welding tabs of lithium-ion battery electrodes ;
1．The tab and the electrode are welded, apply protective glue on the front and back .
2．This machine adopts high-end Panasonic PLC control mode to realize the automation of tab coil unloading, cutting, electrode welding, front and back gluing, and rewinding, saving a lot of manpower, greatly reducing the rate of human damage to the electrode during the production process, with high welding efficiency, and realizing upper and lower gluing (2 passes);
3．Electrode welding and tape application, it can be automatically reeled for use in fully automatic winding machines;
4．This machine is a highly automated device in electrode production. This equipment, together with continuous electrode rolling and continuous electrode stripping, constitutes electrode automated production.
5．This machine has cathode and anode upper and lower adhesive tapes, and positive tab adhesive .
6．All electrical faults during the operation of this machine have an alarm prompt function.

Equipment technical parameters

Equipment use environment

1. Dimensions: 2 040 (L) × 1 050 mm (W) × 1689 mm (H)
2. Weight: about 1100 KG .
3. Power supply : AC220V, single phase; voltage fluctuation is less than ±10%; power: 5KVA.
4. Compressed air: 0.4～0.7Mpa (4-7kgf/cm²), the flow rate of each compressed air is 180L/min, and the utilization rate is 50%.
5. Ambient temperature: 20-35℃.
6. Relative humidity: 5～55%HR.
7. Environmental cleanliness: not less than Class 100,000, with no corrosive gas, liquid or explosive gas on site.

Material specifications and requirements

1,Material Specifications:

2,Material requirements:

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 ;

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;

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.

Configuration of main components of the equipment