3 - 50um Solid State Lithium Battery Ultra Thin Lithium Belt Forming Machine

3-50um Solid State Lithium Battery Ultra-Thin Lithium Belt Forming Machine

1. Device Introduction

1.1. The device is mainly used for forming pure metal lithium anode of solid state lithium battery or forming lithium sheet of liquid lithium battery positive electrode supplement lithium pole piece.

The main realization of lithium belt automatic unwinding, rectifying, tension, A protective film of automatic unwinding, rectifying, tension, B protective film of automatic unwinding, rectifying, tension, forming, tension, rewinding, A protective film of tension, rewinding and other processes.

1.2 Operation process of the device

2, the equipment can adapt to the incoming materials and product specifications

2.1. Adapt to lithium sheet specification

2.1.1. The supplied material is metal lithium foil, roll width: 30mm~250mm, roll alignment deviation: ±3mm, roll inner diameter: φ3 ".

Maximum outer diameter: φ350mm

2.1.2 material: lithium foil, thickness 0.2-2mm, accuracy ±10μm, lithium metal purity ≥99.9%

2.1.3. Snaking bending error of incoming material: 2mm/250mm;

Maximum deviation of coil alignment ±3mm.

Figure 1. Schematic diagram of material edge shape

2.1.4 mechanical characteristics: maximum tensile fracture coefficient: 50g/mm2

2.2. Adapt to the specification of protective film

2.2.1. The incoming material is transparent protective film reel, reel width: 50mm~300mm, reel alignment deviation: ±0.5mm, reel inner diameter: φ3 ".

Maximum outer diameter: φ450mm

2.2.2. Thickness of protective film: 0.2-0.75mm

2.2.3 Incoming materials: single-side oiling.

3. Technical parameters of equipment

3.1, total power: ≤6KW;

3.2 power supply: AC220 V±10% 50HZ;

3.3. Compressed air: pressure ≥ 0.5mpa, flow ≥3m³/h;

3.4. Vacuum source: ≤ -90kpa (provided by Party A), pumping capacity ≥ 1M ³/h;

3.5. Equipment weight: ≤1.5 tons.

Ground load requirement: 650kg/㎡;

3.6, nitrogen: pressure ≥ 0.5mpa, < 0.2m³/h,

3.7, overall size :(L) 2150* (w) 1500* (h) 2000;

(for reference only, mainly in kind);

3.8, excluding other factors, equipment movement rate ≧98%, product yield ≧99.5%;

3.9 The design capacity of the equipment is 0-35m/min and the speed control precision is 1/1000.

3.10, lithium sheet in PET film region control (width direction of diaphragm and trailing) accuracy: +/-2.0mm.

3.11. Make Tufram non-stick roll treatment with the roller that has contacted the lithium belt.

The contact roller with PET film is made of lightweight carbon fiber roller.

3.12 roller diameter φ150mm, effective width 300mm, round runout ≤1um, assembly accuracy ≤2um, roller main body hardness ≥HRC65, surface coating hardness ≥HRC75

3.13. The rolling pressure is adjustable to 10T(5T on one side).

3.14, lithium foil calendering thickness range: 3μm-100μm, accuracy: ±1 um.

3.15, calendered lithium film weight range: 1.0-10.0mg/1540.25mm2.

3.16, PET film winding accuracy: ±1mm.

3.17. All unwinding and pole piece rewinding shall have receiving platform with scale.

3.18, lithium strip unwinding speed: 0.26m/min(20m/min), precision ±0.1%~0.2% servo control, speed adjustable.

3.19, correction range: maximum 25mm. Correction accuracy: +/-0.2mm.

3.20. The equipment shall have the function of variable tension and constant tension at the same time. The tension value is set intuitively by the touch screen, and the setting unit is ≤ 1G;

The tension of lithium foil can be adjusted in the range of 80 ~ 400GF, and the tension fluctuation in the belt running process is less than or equal to ±5% (except the fluctuation of winding and ending position).

The tension of PET film can be adjusted in the range of 80 ~ 400GF, and the tension fluctuation in the process of taking is less than or equal to ±5% (except the fluctuation of winding and ending position).

4. Main device configuration list

5. Product use environment

5.1 The equipment is installed and used in the drying room.

5.2, the use of environmental cleanliness: one hundred thousand grade ~ three hundred thousand grade.

5.3 ambient relative humidity: Dew point humidity: -45 ° C ~-70 ° C.

5.4, the operating environment temperature: 15℃ ~ 25℃.