Description Equipment Function Used in the positive and negative film coating process of lithium iron phosphate, lithium cobalt, and manganese lithium batteries. Thickness of foil: aluminium foil 11–30 µm, copper foil 8–30 µm. Maximum foil width: 500 mm; coating width: 300–500 mm. Maximum machine speed: 12 m/min; speed precision: ±0.1 m/min; coating speed: 0.5–8 m/min (except for lithium iron phosphate). Slurry density: 2000–9000 cps. Solvent: NMP or water base. Dry thickness on single coating: 50–300 µm. Minimum intermittent length: 5 mm. Solvent: oiliness NMP (s.g. 1.033, b.p. 204 °C); water H₂O/NMP (s.g. 1.000, b.p. 100 °C). Solid content: s.c. 60% ± 20% (positive); s.c. 50% ± 10% (negative, PVDF). Specific weight: 1.5–2.5 g/cm² (positive); 1–1.8 g/cm² (negative). Mode of coating: transfer coating; intermittent coating and continuous coating. Machine Introduction Unwinding unit Roller install structure: riser installation (thickness: 30 mm). Tension control: automatic tension control, floating roller and tension sensor control; tension range: 0–200 N. Inner diameter of unwinding and rewinding scroll: 3; maximum diameter of rewinding: 500 mm. Active de-coiling and foil rewinding function. Correction control: automatic correction, EPC control. Machine head unit Installation structure: with a 50 mm riser; weight 1 t. Mode of intermittent: transfer coating, the rubber roller is driven by servo motor. Diameter of steel roller and back roller: 160 mm. Scraper: comma blade doctor, diameter: 160 mm. Scraper angle rotating control: by hand shank. There is a reaction vessel with a mixer on the top of the coating unit. Mode of gap adjustment: by servo motor. Oven Length of oven: 3 m/segment × 6 = 18 m. Structure of whole ovens: arc-shaped structure. Driving mode of running roller: main driving, by servo motor control. Heating mode: electric heating. Heating temperature: room temperature to max 150 °C; temperature control precision < ±3 °C; outside temperature < 50 °C. Temperature control: independent control of each oven, and install with overheat warning device. Mode of blowing: up and down blowing; air flow is separately controlled by valve. Fans control: variable frequency control. Heating power: 18 kW/segment. Winding unit Function is same with the rewinding unit. Correction: install at the export of oven. Winding motor: variable frequency motor. Dimension and weight (not include the access roads): 25542 × 3187 × 2583 mm (L × W × H); 7 t. Automatic feeding system: no, optional. NMP reclaiming system: no. Spare parts Supply coating roller, rubber roller, comma knife each one freely. Color You could choose the color, or it will be our standard colors if you have no requirements (off-white). Machine Precision Coating roller running round beating: ≤ 1.5 µm. Dry thickness precision on single coating: ±2 µm (the normal slurry). Alignment of double sides: ≤ ±1 mm. Correction precision: ≤ ±1 mm. Tailing: ≤ 1 mm. Installation Environment Environment temperature of machine head: 20–30 °C; the other parts: 10–40 °C. Relative humidity of machine head: positive (aluminium foil) RH ≤ 35%, negative (copper foil) RH ≤ 98%; the other units ≤ 98%. Supporting Facilities Power: 3 ph, 480 V, 60 Hz; voltage fluctuate range: +8% to -8%; total star power: 135 kW (the working power is about 60%). Compressed air: after drying filter and steady voltage, vent air pressure above 5.0 kg/cm². Operation Specification Supply equipment original procedures, electrical connections drawing, electrical schematics, mechanical assembly, etc. Supply all operation specification of the equipment operation and controlled unit, notice specification of operating the machine (English).
