Cylindrical Cell Laser Cutting and Winding Machine

Function

Description

Electrode Laser Cutting

Positive and negative electrodes are precisely cut to the required tab shape or full tab, with optional independent operation.

Automatic Winding

Electrodes and separators are aligned, tension-controlled, and wound according to process specifications using a servo-driven winding unit.

Alignment & Tension Control

Active separator unwinding, automatic edge correction, and closed-loop tension control ensure consistent alignment and even layer formation.

CCD Inspection

Detects electrode defects during feeding; integrated with feedback for rejection or process correction.

Post-Winding Processing

Includes end-taping, electrode tab pre-folding, height adjustment, short-circuit testing, appearance inspection, barcode tracking, and automated unloading.

Integrated Modules

Reels for electrodes and separators, tension and edge correction, laser cutting, cutting/taping, CCD inspection, winding, flattening, and automated unloading.

Process Traceability

Each cell is tracked via barcode scanning; defective units are automatically rejected.

Parameter

Specification

Dimensions (L×W×H)

≤8400 × 2500 × 2650 mm (excluding fan)

Weight

Approx. 14,000 kg

Floor Load

≤1000 kg/m²

Power Supply

380 VAC ±5%, 45 kW, 50 Hz

Compressed Air

0.5–0.7 MPa, 5000 L/min, 90% utilization

Vacuum

-60 to -80 kPa

Ambient Temperature

10–35℃

Cleanliness

≥100,000 class, free of combustible/corrosive gases and dust

Color

Per client-provided color panel

Material

Roll Quantity

Width (mm)

Thickness (µm)

Thickness Tolerance

Sheet Length (mm)

Outer Diameter (mm)

Core Diameter (mm)

Max Weight (kg)

Positive Electrode

2

55–140

80–180

≤3

1000–6000

≤700

76.2±1

200

Negative Electrode

2

55–140

50–180

≤3

1000–6000

≤700

76.2±1

200

Separator

2

55–140

12–30

≤2

1000–6000

≤400

76.2±1

40

End-Tape

2

10–110

20–70

—

80–200

≤200

76.2±1

—

Parameter

Value

Cell Height (H)

60–140 mm

Cell Diameter (d)

30–50 mm

End-Tape Length

80–200 mm

End-Tape Width

10–110 mm

Electrode Tab Height (h)

5–10 mm

Item

Specification

Production Efficiency

≥12 ppm (max sheet length 5000 mm, φ5 mm winding needle, 20 negative tabs, 15 positive tabs, tab length ≤13 mm)

Product Yield

≥99% (excluding incoming material defects)

Equipment Failure Rate

≤2%

Winding Alignment

±0.3 mm

Core Height Accuracy

±0.5 mm

Electrode Wrapping Accuracy

≤0.5 mm

Equipment Utilization

≥98%

Burr on Cut

End face ≤7 µm, lateral ≤10 µm

Separator Cutting

Hot knife

Electrode Length Precision

6000 ±2 mm

Overhang Accuracy

≤±0.5 mm

Electrode Feed Position Accuracy

≤±1 mm

Uniform Tension Fluctuation

≤±5% (closed-loop control)

Parameter

Requirement

Working Temperature

23±3℃; Dew point: -40~20℃

Storage Temperature

-10~45℃; Dew point: -40~20℃; no condensation

Noise (optional)

≤75 dB @1 m from equipment wall

Floor Load Capacity

≤1000 kg/m²