TerraE 40P Drones Fast charge of the batteries - how to charge the battery quickly without overheating the cells or causing lithium plating which could degrade the battery or cause it to catch fire.
Discover the TerraE 40P cell for drones, designed for fast charging without overheating, ensuring safety and efficiency in UAV applications.
Value Propositions
Cylindrical 21700 form factor for compact design.
Nominal capacity of 14.4 Wh and 4.0 Ah for reliable performance.
Top-quartile volumetric power density of 6,365 W/l for rapid energy delivery.
Gravimetric energy density of 215 Wh/kg, supporting lightweight UAV designs.
Maximum continuous discharge of 45 A, ideal for high-demand applications.
About the Cell
The TerraE 40P cell features a cylindrical 21700 form factor, providing a nominal capacity of 14.4 Wh and 4.0 Ah. With a volumetric energy density of 566 Wh/l, it stands out in the market, being around the median compared to other cells. The gravimetric energy density of 215 Wh/kg is also competitive, ensuring that the cell is lightweight yet powerful. The volumetric power density of 6,365 W/l is among the highest in the database, allowing for quick energy delivery during demanding UAV operations. Additionally, the maximum continuous discharge rate of 45 A positions it in the top-quartile, making it suitable for high-performance applications. This cell is designed to meet the rigorous demands of drone battery design, ensuring reliability and efficiency in various operational scenarios.
Application Challenges
In the context of drones, fast charging of batteries is crucial to maintain operational efficiency. The challenge lies in charging the battery quickly without overheating the cells or causing lithium plating, which can degrade battery performance or even lead to safety hazards. The TerraE 40P cell addresses these challenges with its high maximum continuous charge rate of 6 A (1.5 C), allowing for rapid charging while maintaining thermal stability. This is essential for applications requiring quick turnaround times, such as emergency response or industrial inspections. The ability to manage heat generation and ensure safe operation is paramount, especially in high-demand environments where battery performance directly impacts mission success.
Why this Cell
The TerraE 40P cell is specifically designed for the demanding requirements of drone applications. With a maximum continuous discharge rate of 45 A, it is well-suited for high-energy tasks, ensuring that drones can perform optimally without overheating. The cell's volumetric energy density of 566 Wh/l is significantly higher than the database median of 541 Wh/l, providing an advantage in weight-sensitive applications. This allows for longer flight times and improved UAV mission endurance. Furthermore, the cell's lightweight design, with a mass of only 67 g, supports the development of lightweight drone battery packs, crucial for enhancing overall drone performance. By selecting the TerraE 40P, engineers can ensure that their UAVs are equipped with reliable, high-performance batteries that meet the challenges of modern drone operations.
How Model-Based Design Helps
Simulation and model-based design play a critical role in optimising battery performance for drones. By modelling load profiles and thermal behaviour, engineers can predict how the TerraE 40P cell will perform under various conditions. This includes assessing heat generation during rapid charging and high discharge scenarios, which is vital for preventing overheating. Additionally, simulations can help in understanding voltage sag and usable energy across different flight profiles, enabling the selection of the most suitable cells for specific missions. By leveraging these insights, designers can confidently choose the TerraE 40P cell, ensuring that it meets the rigorous demands of drone applications while maximising safety and efficiency.
