Precision Flat Plate Hot Press for Soft pack battery

Precision Flat Plate Hot Press for Soft pack battery

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The flat plate hot press is a device that uses parallel heating plates to press and form materials under high temperature and high pressure conditions. During operation, heat is evenly transferred to the material through the heated plates while pressure is applied, causing the material to undergo physical or chemical changes. This process results in dense and stable final products. The flat plate hot press is widely used in industrial manufacturing and materials science, particularly in applications such as composite material forming and laminating, wood processing, and electronic component production.

Product Overview:

The CY-YLJ-HS20KN is a precision flat plate hot press specifically designed for heating, pressing, and forming lithium-ion and solid-state batteries. It can also be used for single electrode-separator lamination processes. An optional short-circuit tester is available for cell short-circuit testing.

Product Features:

Integrated design with dual start buttons and safety light curtains for reliable and safe operation.

Pressing plates are made from imported high-temperature mold steel, offering high precision and minimal thermal deformation.

Large pressing area with a maximum effective hot-pressing area of 160 x 260 mm.

Pneumatically driven system with adjustable pressure.

Rod-type heaters ensure good temperature uniformity and easy replacement.

Optional short-circuit tester for thermal short-circuit testing of battery cells.

Purchase Information:

If you are interested in our precision flat plate hot press, please contact us for more details and quotations:

Phone: +86 18516380382

Email: Jimmy@cysitech.com

Contact Person: Jimmy Hao

WeChat: +86 18516380382

WhatsApp: +86 13939946898

Technical Specifications：

Product name	Precision flat hot press machine
Product model	CY-YLJ-HS20KN
Power supply	Single-phase AC220V±10%, frequency 50Hz (customizable AC110V/60Hz), power 3.3KW recommended ambient temperature 25±3℃, humidity 30～90RH, no vibration and electromagnetic interference
Usage environment	0.4～0.6MPa compressed air
Air source	(150～2000KG, accuracy ±10KG) pressure gauge display (if the external air source is unstable, there will be a slight impact)
Working pressure	Pressure from top to bottom
Pressure direction	Max150℃, accuracy ±2.5℃
Heating temperature	Imported high temperature resistant mold steel, hardness HRC60°
Press plate material	Max.L260mm*W160mm
Hot press size	95mm
Pressure stroke	Parallelism of upper and lower pressure plates ≤10um
Press plate accuracy	Host 580515750mm (LWH, subject to actual size)
Equipment size	Host about 240kg (subject to actual weight)

Main Components：

Part name	Component Description
Heating plate	Used to heat the sample
Hydraulic cylinder	Provide the required pressure for the hot press
Control system	Control the temperature, pressure and hot press time
Cooling system	Used to cool the heating plate and workpiece
Seal	Ensure the seal between the pressure chamber and the heating plate
Instruction manual	Standard

Applications:

Composite Material Production: Carbon fiber and fiberglass composites, ceramic matrix composites.

Metal Processing: Powder metallurgy, sheet metal forming.

Electronics and Semiconductors: Electronic component packaging, LED encapsulation.

Aerospace: Aerospace composites and parts.

Solar and Photovoltaics: Solar cell modules, photovoltaic encapsulation materials.

Application Example: 《Thermal Press Formation for Lithium Batteries》

Process Steps:

1 .Material Preparation:

Cathode Materials: LiCoO₂, NCM, LFP, etc.

Anode Materials: Graphite, silicon-based materials, etc.

Electrolyte: Organic solvents with LiPF₆.

Separator Materials: Polyethylene (PE), polypropylene (PP).

Current Collectors: Aluminum foil (cathode) and copper foil (anode).

Ensure cleanliness and quality of materials before beginning.

2. Battery Assembly:

Coating and Drying: Apply active materials to current collectors and dry them to remove solvents.

Stacking or Winding: Assemble cathode, anode, and separator in proper order.

Packaging: Encapsulate the assembled battery in an aluminum shell or soft pouch.

3. Thermal Press Formation Process:

Load Battery Cells: Place assembled cells in the hot press mold, ensuring proper alignment.

Set Temperature and Pressure: Adjust temperature (50–120°C) and pressure (10–20 MPa) based on cell size and requirements.

Heating and Pressing:

Heating: Activate molecular structures to enhance bonding.

Pressure: Ensure tight bonding and eliminate voids.

Time: Maintain pressing for 10–30 minutes based on material and process requirements.

4. Cooling and Demolding:

Cooling: Gradual cooling to avoid shrinkage or damage.

Demolding: Extract cooled cells for quality checks.

5. Formation and Grading:

Formation: Perform initial charge-discharge cycles to activate internal reactions.

Grading: Test and grade cells for capacity and performance.

6. Assembly and Testing:

Final assembly into battery modules (hard case, pouch, or cylindrical).

Conduct comprehensive testing, including charge-discharge, resistance, and safety checks.

Summary:

Flat plate hot presses play a critical role in lithium battery manufacturing by ensuring strong material bonding and activating the chemical reactions necessary for optimal performance. This process enhances battery capacity, lifespan, and safety.