Aluminum Tab for Pouch Li-ion Cell, Width: 4 mm, Length: 57 mm

Technical Specification:

1. Material Composition:
   • Material: Aluminum (Al)
   • Purity: ≥99.9% (battery-grade aluminum for optimal conductivity and corrosion resistance).
2. Physical Dimensions:
   • Width: 4 mm
   • Length: 57 mm
   • Thickness: Typically 0.1–0.3 mm (depending on specific battery design requirements).
3. Electrical Properties:
   • Electrical Conductivity: High conductivity to minimize resistance and enhance energy transfer efficiency.
   • Thermal Conductivity: Excellent heat dissipation properties, aiding in thermal management.
4. Mechanical Properties:
   • Flexibility: Sufficient flexibility to accommodate assembly in pouch cells without cracking or breaking.
   • Strength: Durable enough to withstand mechanical stresses during welding and battery operation.
5. Surface Treatment:
   • Surface may be treated or coated (e.g., with nickel or other materials) to enhance corrosion resistance and improve weldability.
6. Compatibility:
   • Designed for use as the positive terminal tab in lithium-ion pouch cells, compatible with aluminum current collectors and electrolyte environments.

Applications:

1. Primary Applications:
   • Positive Terminal in Pouch Li-Ion Cells:
     • Serves as the primary tab connecting the positive electrode (cathode) to the external circuit.
   • Battery Packs:
     • Used in the assembly of pouch cells in modular battery packs for energy storage.
2. Industries:
   • Energy Storage:
     • Essential in manufacturing pouch cells for energy storage systems (ESS), grid storage, and renewable energy integration.
   • Electric Vehicles (EVs):
     • Applied in EV battery packs requiring lightweight, high-performance materials.
   • Consumer Electronics:
     • Integral to batteries in smartphones, tablets, laptops, and other portable devices.
   • Aerospace and Defense:
     • Used in lightweight, high-energy-density batteries for specialized applications.
3. Advantages for Applications:
   • High Conductivity:
     • Ensures efficient current transfer, reducing energy loss.
   • Lightweight:
     • Aluminum is lightweight, minimizing the overall weight of battery systems.
   • Thermal Management:
     • Enhances heat dissipation to prevent overheating during operation.
   • Cost-Effective:
     • Aluminum tabs are more cost-efficient than other metal alternatives.
4. Specialized Uses:
   • High-Power Applications:
     • Suitable for batteries in high-drain devices and fast-charging systems.
   • Custom Battery Designs:
     • Can be tailored to fit specific cell designs in research and development.
5. Challenges and Mitigation:
   • Corrosion Sensitivity:
     • Aluminum can corrode in certain environments.
       • Solution: Surface coating or lamination to protect against electrolytic reactions.
   • Weldability:
     • May require precise welding techniques to ensure strong connections.
       • Solution: Utilize ultrasonic or laser welding for optimal results.

Summary:

The Aluminum Tab for Pouch Li-Ion Cell (Width: 4 mm, Length: 57 mm) is a critical component in lithium-ion pouch cells, serving as the positive terminal tab. Its high conductivity, lightweight nature, and excellent thermal properties make it ideal for applications in EVs, consumer electronics, and energy storage systems. With proper surface treatments, it provides reliable performance and long-term durability in demanding environments.