PTFE Separator Film for Battery Applications Thickness: 50μm, Width: 60mm, Length: 600 m, 1 roll: 600 m

Technical Specification:

1. Material Composition:
   • Base Material: Polytetrafluoroethylene (PTFE).
     • Exceptional thermal stability, chemical resistance, and mechanical strength.
   • Optional Reinforcements:
     • May include additional structural layers (e.g., polyethylene or polypropylene) for enhanced flexibility.
2. Physical Dimensions:
   • Thickness: 50 μm.
     • Ideal for providing robust mechanical separation while maintaining ionic conductivity.
   • Width: 60 mm.
     • Suitable for standard electrode sizes and battery formats.
   • Length: 600 meters per roll.
3. Structural Properties:
   • Porosity: Typically 40–60%, with uniform pore distribution.
     • Allows for effective electrolyte infiltration and ion transport.
   • Pore Size: Micro-porous structure ensures efficient ionic conductivity and electrolyte retention.
4. Thermal Properties:
   • Operating Temperature Range: -200°C to 260°C.
   • Thermal Stability:
     • Maintains structural integrity in high-temperature applications.
   • Non-Melting:
     • Unlike polyethylene or polypropylene, PTFE does not melt, making it ideal for safety-critical applications.
5. Mechanical Properties:
   • Tensile Strength:
     • High mechanical durability prevents tearing during assembly or operation.
   • Flexibility:
     • Adaptable to various electrode designs while resisting deformation.
6. Chemical Resistance:
   • Inert to most electrolytes, including lithium salts and organic solvents.
7. Surface Properties:
   • Smooth Finish:
     • Enhances adhesion of electrode coatings if needed.
   • Electrolyte Compatibility:
     • Excellent wettability ensures effective electrolyte retention.

Applications:

1. Primary Applications:
   • Battery Separator:
     • Provides physical separation between the cathode and anode while allowing ion flow in lithium-ion batteries and solid-state systems.
2. Industries:
   • Battery Manufacturing:
     • Essential for lithium-ion, solid-state, and high-performance battery production.
   • Electric Vehicles (EVs):
     • Used in high-energy-density battery packs for EVs, ensuring safety and efficiency.
   • Consumer Electronics:
     • Powers devices such as smartphones, laptops, and other portable electronics.
   • Energy Storage Systems (ESS):
     • Applied in grid-scale and renewable energy storage systems for extended durability.
3. Advantages for Applications:
   • High Thermal Resistance:
     • Ensures safety and reliability under extreme operating conditions.
   • Chemical Stability:
     • Long-lasting performance even in aggressive chemical environments.
   • Mechanical Strength:
     • Prevents damage during assembly and operation.
   • Electrolyte Compatibility:
     • Compatible with a variety of liquid and gel-based electrolytes.
4. Specialized Uses:
   • High-Temperature Batteries:
     • Suitable for applications where thermal runaway risks are critical, such as aerospace and EVs.
   • Solid-State Battery Research:
     • Acts as a robust separator for experimental solid-state electrolytes.
   • Advanced Energy Storage:
     • Supports high-capacity battery systems for renewable energy integration and industrial applications.
5. Challenges and Mitigation:
   • Cost:
     • PTFE separators are typically more expensive than PE or PP alternatives.
       • Solution: Use in applications requiring superior thermal and chemical stability.
   • Handling Complexity:
     • Stiffer material may require specialized equipment for cutting and shaping.
       • Solution: Employ automated handling systems designed for PTFE materials.

Summary:

The PTFE Separator Film for Battery Applications, with a thickness of 50 μm, width of 60 mm, and roll length of 600 meters, is a high-performance solution for demanding battery systems. Its unmatched thermal stability, chemical resistance, and mechanical strength make it ideal for electric vehicles, consumer electronics, and energy storage systems. This separator enhances safety and efficiency, supporting the development of advanced and reliable energy storage solutions.