EVE Energy 50PL 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 EVE Energy 50PL cell for drones, designed for fast charging without overheating, ensuring safety and performance in critical applications.
Value Propositions
Cylindrical 21700 form factor for compact design.
Nominal capacity of 18.0 Wh and 5.0 Ah for reliable performance.
Top-quartile volumetric energy density of 724 Wh/l for efficient space use.
Maximum continuous discharge of 80 A for high power demands.
Gravimetric power density of 4000 W/kg for rapid energy delivery.
About the Cell
The EVE Energy 50PL cell features a cylindrical 21700 form factor, providing a nominal capacity of 18.0 Wh (5.0 Ah). With a volumetric energy density of 724 Wh/l, it ranks in the top-quartile compared to the median of 542 Wh/l in the database. Its gravimetric energy density of 250 Wh/kg is also noteworthy, being around the median of 210 Wh/kg. The cell boasts a volumetric power density of 11,580 W/l, which is among the highest in the database, and a gravimetric power density of 4,000 W/kg, significantly exceeding the median of 750 W/kg. This combination of high energy and power densities makes it ideal for demanding applications such as drones, where space and weight are critical factors.
Application Challenges
In the context of drones, fast charging presents unique challenges. The need to charge batteries quickly without overheating is paramount, as excessive heat can lead to lithium plating, which degrades battery performance and safety. The EVE Energy 50PL cell is designed to address these challenges, with a maximum continuous charge of 10 A and a maximum continuous discharge of 80 A. This allows for rapid energy delivery while maintaining thermal stability. The ability to manage heat effectively is crucial in drone applications, where operational reliability and safety are essential. The high energy density of the 50PL cell ensures that drones can achieve longer flight times, which is vital for missions requiring endurance and efficiency.
Why this Cell
The EVE Energy 50PL cell is particularly suited for drone applications due to its impressive specifications. With a maximum continuous discharge rate of 80 A, it supports high power demands, making it ideal for rapid acceleration and heavy lifting. The cell's volumetric energy density of 724 Wh/l is top-quartile compared to the database median, allowing for efficient use of space in UAV designs. Additionally, its gravimetric power density of 4,000 W/kg ensures that drones can deliver power quickly without compromising on weight. This combination of high performance metrics makes the 50PL cell an excellent choice for UAV battery pack design, enabling longer missions and improved overall efficiency.
How Model-Based Design Helps
Simulation and model-based design play a critical role in optimising the performance of the EVE Energy 50PL cell in 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 predictive capability allows for the identification of potential overheating issues before they occur, ensuring that the cell operates within safe limits. Furthermore, simulations can help in determining the optimal charge and discharge rates, maximising the usable energy while minimising the risk of lithium plating. This approach not only enhances the reliability of drone operations but also supports the development of custom UAV battery packs tailored to specific mission profiles.
