Molicel P50B Drones Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.
Explore the Molicel P50B cell for drones, designed to maximise flight time and optimise performance in demanding 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 volumetric power density of 8,441 W/l for high performance.
Gravimetric energy density of 257 Wh/kg, ideal for lightweight applications.
Maximum continuous discharge of 60 A for demanding UAV tasks.

About the Cell
The Molicel P50B is a cylindrical 21700 lithium-ion cell with a nominal capacity of 18.0 Wh and 5.0 Ah. It boasts a volumetric energy density of 703 Wh/l, which is significantly above the database median of 542 Wh/l, making it suitable for applications requiring high energy density. The gravimetric energy density stands at 257 Wh/kg, which is also above the median of 210 Wh/kg, ensuring that the cell remains lightweight while providing substantial energy. Additionally, the cell features a volumetric power density of 8,441 W/l, placing it in the top-quartile compared to the median of 2,029 W/l, which is crucial for applications that demand quick bursts of power. The maximum continuous discharge rate of 60 A is particularly beneficial for high-performance UAVs, allowing them to handle demanding tasks without compromising safety or performance.
Application Challenges
In the realm of drones, maximising flight time is paramount. The Molicel P50B cell addresses this challenge by optimising cell selection, duty cycle, and flight speed. The ability to extend drone flight time is critical for various applications, including industrial inspections, where every minute of airtime counts. The high energy density of the P50B cell ensures that drones can carry out their missions efficiently, even in harsh environments. Furthermore, the cell's thermal management capabilities help prevent overheating, which is essential for maintaining performance during extended flights. By utilising advanced battery thermal management techniques, operators can ensure that their UAVs remain operational for longer periods, thus improving mission endurance.
Why this Cell
The Molicel P50B cell is specifically designed for drone applications where maximising flight time is crucial. With a maximum continuous discharge rate of 60 A, it is well-suited for high-demand scenarios, allowing drones to perform effectively under load. The cell's gravimetric energy density of 257 Wh/kg is significantly above the median of 210 Wh/kg, ensuring that operators can achieve longer flight durations without adding excessive weight. Additionally, the volumetric power density of 8,441 W/l is among the highest in the database, providing the necessary power for rapid acceleration and manoeuvrability. This combination of high energy and power densities makes the P50B an ideal choice for UAV battery optimisation, ensuring that operators can confidently select the right cell for their specific needs.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the Molicel P50B cell for drone applications. By modelling load profiles, engineers can accurately predict how the cell will behave under various conditions, including thermal rise and voltage sag. This allows for the selection of the most suitable cell for specific mission profiles, ensuring that drones can deliver the required thrust and energy throughout their flight. Furthermore, simulations can help identify optimal duty cycles and flight speeds, maximising usable energy while minimising the risk of overheating. By leveraging cell-specific data, operators can make informed decisions that enhance UAV performance and reliability, ultimately leading to improved mission outcomes.


