Auto Battery Electrode Winding Machine for 26650 Cells

Auto Battery Electrode Winding Machine for 26650 Cells

SPECIFICATIONS

This auto battery electrode winding machine winds lithium-ion battery components (cathode electrode, anode electrode, and separator) into cells after processing them through mechanisms including dust removal, tension control, quality inspection, length measurement, running alignment, and static elimination. After cell formation, the process includes hot needle piercing, cathode tab welding and short-circuit testing, rejection of defective cells, and output via conveyor belt.

1. Mandrel feeding/retracting and direction change are fully cam-controlled for stability, high efficiency, and low failure rate.

2. The electrode employs three-stage alignment control: unwinding alignment, process alignment, and pre-winding alignment to ensure product quality.

3. Equipped with cathode tab welding.

Process Flow:

Upper Separator Unwinding (Alignment) → Tension Control → Static Elimination

Lower Separator Unwinding (Alignment) → Tension Control → Static Elimination

Cathode Electrode Unwinding (Alignment) → Dust Removal → Tension Control → Length Measurement → Process Alignment → Feeding & Cutting

Anode Electrode Unwinding (Alignment) → Dust Removal → Tension Control → Length Measurement → Process Alignment → Feeding & Cutting

Winding Cell with Termination Tape → Hot Needle Piercing (Optional) → Short-Circuit Test → Discharge & Conveying

Material specifications requirements

Winding Method:

Adopts a three-mandrel, three-station winding system.

Mandrel Diameter:Ø3.5–Ø8.0 (or customer-specified)

Winding Diameter:Ø20–Ø26mm (for 26-series cells)

Number of Tabs:1 or 2 tabs (cathode or anode)

Tab Protrusion Length:8–25mm

Winding Precision:

Cathode-to-Anode Electrode Alignment: ±0.3mm

Electrode-to-Separator Alignment: ±0.3mm

Three-Stage Alignment Control for Electrodes (cathode/anode):

1) Unwinding alignment

2) Process alignment

3) Pre-winding alignment

Two Separator Layers Alignment: ±0.5mm

Production Capability:

For 26650(18650, 21700) cells: Production speed of 15 PPM

Operational Efficiency≥95%

Operational Efficiency = [Total Production Quantity / (Machine Runtime–Necessary Deduction Time)×Theoretical Production Speed]×100%*

Necessary Deduction Time: Downtime caused by non-equipment factors (e.g., material changeover, splice joining, production preparation).

Yield Rate≥98%

Yield Rate = [Total Good Products / (Total Production Quantity–Necessary Deduction Quantity)]×100%*

(Excludes defects caused by material factors)

Necessary Deduction Quantity: Defective products caused by non-equipment factors (e.g., poor splicing, electrode length deviation, missing tabs).

Equipment Technical Specifications

Power Supply: Single-phase AC220V±10%, 50Hz

Pneumatic Supply: 0.5-0.7MPa (Required flow rate: 60L/min)

Temperature, Humidity & Environmental Requirements

1) Environmental Requirements: (According to JIS B 3502-1997 Programmable Controllers - Equipment Requirements and Tests)

2) Ambient Operating Temperature: 0°C to 55°C

3) Prohibited in corrosive, flammable, or excessively dusty environments.

Overall Dimensions: Length 2850mm×Height 2050mm×Width 1800mm (Actual dimensions subject to final design)

Exterior Color: Silver Gray (Or customer-specified color; color sample required)

Weight: Approx. 3000Kg (≤750Kg/m²)

Power Consumption: 12 kW (running)

Noise Level:≤75 dB (Excluding dust collector fan)

PRODUCT DISPLAY

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 Whatsapp/Phone number :+86 181 2071 5609