Tenpower 20SG 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 Tenpower 20SG cell for drones, designed for fast charging without overheating, ensuring safety and efficiency in UAV applications.
Value Propositions
Cylindrical 18650 form factor for versatile applications.
Nominal capacity of 7.4 Wh and 2.0 Ah for reliable performance.
Top-quartile volumetric power density of 6,257 W/l for rapid energy delivery.
Gravimetric energy density of 172 Wh/kg, supporting lightweight designs.
Maximum continuous discharge of 30 A, ideal for demanding UAV operations.
About the Cell
The Tenpower 20SG cell features a cylindrical 18650 form factor, with a nominal capacity of 7.4 Wh and 2.0 Ah. It boasts a volumetric energy density of 417 Wh/l, which is around the median for similar cells, and a gravimetric energy density of 172 Wh/kg, providing a lightweight solution for drone applications. The cell's volumetric power density of 6,257 W/l places it in the top quartile compared to the database median of 2,029 W/l, making it suitable for high-performance UAVs. Additionally, the maximum continuous discharge rate of 30 A allows for robust performance during demanding operations, ensuring that drones can maintain high power outputs without overheating. This cell is designed to meet the rigorous demands of drone battery design, offering a reliable solution for UAV battery pack design and optimisation.
Application Challenges
In the context of drones, fast charging presents significant challenges. The need to charge batteries quickly without overheating is paramount, as excessive heat can lead to lithium plating, which degrades battery performance and poses safety risks. The Tenpower 20SG cell addresses these challenges with its high energy density and robust thermal management capabilities. The ability to deliver a maximum continuous charge of 6 A allows for efficient charging cycles, which is critical for applications requiring rapid turnaround times. Furthermore, the cell's design supports effective battery thermal management, ensuring that UAVs can operate safely in demanding environments. This is particularly important for applications such as long endurance drone batteries and heavy lift drone batteries, where performance and safety are crucial.
Why this Cell
The Tenpower 20SG cell is specifically engineered for the fast charging needs of drones. With a maximum continuous charge rate of 6 A, it allows for quick energy replenishment while maintaining safety standards. This is particularly beneficial for UAV applications where downtime must be minimised. The cell's gravimetric energy density of 172 Wh/kg ensures that it remains lightweight, which is essential for drone endurance. Additionally, its top-quartile volumetric power density of 6,257 W/l enables rapid energy delivery, making it ideal for high discharge rate UAV batteries. By selecting the Tenpower 20SG, designers can optimise UAV battery performance while addressing the critical challenge of fast charging without overheating.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the Tenpower 20SG cell for drone applications. By modelling load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions, including rapid charging scenarios. This approach allows for the identification of potential overheating issues before they arise, ensuring that the cell can be safely charged at high rates without risk of lithium plating. Furthermore, simulations can help in understanding voltage sag and usable energy across the entire flight envelope, enabling designers to make informed decisions about cell selection and battery pack design. This predictive capability is essential for ensuring that UAVs can reliably complete missions, particularly in challenging environments where performance is critical.
