Molicel P50S 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 Molicel P50S 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 18.0 Wh and 5.0 Ah for reliable energy supply.
Top-quartile power density (+58% vs median W/kg) for brisk current draws.
Maximum continuous discharge of 100 A for demanding applications.
Volumetric energy density of 703.4 Wh/l for space efficiency.
About the Cell
The Molicel P50S is a cylindrical 21700 cell with a nominal capacity of 18.0 Wh (5.0 Ah). It features a volumetric energy density of 703.4 Wh/l, which is significantly above the database median of 541.667 Wh/l, making it an excellent choice for applications requiring high energy density. The gravimetric energy density of 253.521 Wh/kg also places it in the top quartile compared to the median of 210 Wh/kg, ensuring lightweight performance. With a maximum continuous discharge rate of 100 A, this cell can handle demanding applications, providing robust power delivery. Additionally, the volumetric power density of 14,068 W/l is among the highest in the database, supporting rapid energy release when needed. This combination of features makes the Molicel P50S ideal for drone applications, particularly in scenarios where fast charging and high discharge rates are critical.
Application Challenges
In the context of drones, fast charging presents unique challenges. The need to charge batteries quickly without overheating is paramount, as overheating can lead to lithium plating, which degrades battery performance and poses safety risks. The Molicel P50S addresses these challenges with its high maximum continuous charge rate of 25 A, allowing for efficient charging while maintaining thermal stability. Furthermore, the cell's design mitigates the risk of overheating, ensuring that drones can operate safely and effectively in various environments. The ability to maintain performance under high discharge rates is crucial for applications such as UAV battery pack design and lithium-ion cells for drones, where reliability and safety are non-negotiable.
Why this Cell
The Molicel P50S is specifically engineered for drone applications where fast charging is essential. With a maximum continuous discharge rate of 100 A, it supports high energy demands, making it suitable for UAV battery optimization. The cell's volumetric energy density of 703.4 Wh/l ensures that drones can carry more energy without increasing weight, which is vital for extending flight times. Compared to the database median, this cell's performance is significantly above average, providing a reliable solution for those looking to improve UAV mission endurance. The combination of high energy density and robust discharge capabilities makes the P50S an excellent choice for custom UAV battery packs.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising battery performance for drones. By simulating load profiles and thermal behaviour, engineers can predict how the Molicel P50S will perform under various conditions. This includes modelling heat generation during fast charging and understanding voltage sag during high discharge scenarios. Such simulations allow for informed decisions in cell selection, ensuring that the chosen battery meets the specific demands of the mission profile. For instance, by analysing the thermal rise associated with different charge rates, designers can avoid overheating and ensure that the battery operates within safe limits. This predictive capability is essential for developing reliable drone battery solutions that can withstand extreme environments and demanding operational conditions.
