Molicel P50B EVTOL Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.
Discover the Molicel P50B, a cylindrical 21700 cell designed for EVTOL applications, optimising flight time and performance under demanding conditions.
Value Propositions
Cylindrical 21700 form factor for compact integration.
Nominal capacity of 18.0 Wh and 5.0 Ah for reliable performance.
Volumetric energy density of 703 Wh/l, top-quartile vs median.
Gravimetric power density of 3085 W/kg, among the highest in database.
Maximum continuous discharge of 60 A, top-quartile vs median.
About the Cell
The Molicel P50B is a cylindrical 21700 lithium-ion cell designed for high-performance applications, particularly in EVTOL systems. With a nominal capacity of 18.0 Wh and 5.0 Ah, it offers a robust solution for demanding energy needs. The cell features an impressive volumetric energy density of 703 Wh/l, placing it in the top-quartile compared to the database median of 541.67 Wh/l. Additionally, its gravimetric energy density of 257.14 Wh/kg is significantly above the median of 210 Wh/kg, ensuring lightweight solutions for drone applications. The volumetric power density of 8440.8 W/l is among the highest in the database, providing exceptional performance for rapid energy delivery. Furthermore, the maximum continuous discharge rate of 60 A (12 C) positions it in the top-quartile against the median of 30 A, making it ideal for high-demand scenarios.
Application Challenges
In the EVTOL sector, maximising flight time is crucial. The Molicel P50B cell addresses this challenge by optimising cell selection, duty cycles, and flight speeds. High energy density is essential for extending drone flight times, particularly in applications such as industrial inspections and emergency response. The ability to deliver reliable power under varying conditions is vital, as UAVs often operate in extreme environments. The P50B's high discharge rates and energy densities ensure that drones can perform efficiently without overheating or compromising safety. By leveraging advanced battery thermal management, the P50B helps prevent overheating, a common pain point in UAV operations, thus enhancing mission endurance.
Why this Cell
The Molicel P50B is specifically designed to meet the rigorous demands of EVTOL applications. Its nominal capacity of 18.0 Wh and maximum continuous discharge of 60 A ensure that it can deliver the necessary power for extended flight times. The cell's volumetric energy density of 703 Wh/l is top-quartile compared to the median, allowing for lightweight drone battery packs that do not sacrifice performance. The high gravimetric power density of 3085 W/kg further supports the need for rapid energy delivery, making it an excellent choice for UAV battery optimisation. These characteristics enable operators to maximise flight time while maintaining safety and efficiency.
How Model-Based Design Helps
Simulation and model-based design play a critical role in optimising the selection of the Molicel P50B for EVTOL applications. By modelling load profiles, thermal behaviour, and voltage response, engineers can accurately predict the performance of the cell under various conditions. This approach allows for the identification of optimal duty cycles and flight speeds that maximise efficiency and minimise energy loss. For instance, simulations can reveal how the P50B performs at different temperatures and states of charge (SoC), ensuring that drones can reliably complete missions without mid-air failures. By utilising cell-specific data, operators can make informed decisions that enhance UAV performance and extend flight times.
