Molicel P50S EVTOL Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.
Discover the Molicel P50S cell designed for EVTOL applications, optimising flight time and performance while addressing core technical challenges.
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 14,068 W/l, +69% vs database median.
Gravimetric energy density of 254 Wh/kg, ideal for lightweight applications.
Maximum continuous discharge of 100 A, ensuring high performance under load.
About the Cell
The Molicel P50S 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 storage in compact formats. Its gravimetric energy density of 254 Wh/kg positions it well for lightweight drone battery packs, ensuring that UAVs can carry more payload without compromising on flight time. The cell's maximum continuous discharge rate of 100 A places it in the top-quartile compared to the database median of 30 A, allowing for robust performance during demanding operations. Additionally, the volumetric power density of 14,068 W/l is among the highest in the database, providing the necessary power for rapid acceleration and high-performance flight profiles.
Application Challenges
In the EVTOL sector, maximising flight time is critical. The Molicel P50S cell addresses this challenge by optimising cell selection, duty cycle, and flight speed. The high energy density of the P50S allows for extended flight durations, which is essential for applications such as industrial inspections and emergency response missions. The ability to maintain performance under varying loads is crucial, as UAVs often operate in unpredictable environments. The challenge lies in ensuring that the battery can deliver consistent power while preventing overheating and maintaining safety standards. The Molicel P50S's high discharge rates and thermal management capabilities are designed to meet these demands, ensuring reliability and efficiency in flight operations.
Why this Cell
The Molicel P50S cell is specifically engineered for EVTOL applications, where maximising flight time is paramount. With a maximum continuous discharge of 100 A, it is positioned in the top-quartile compared to the median of 30 A in the database, ensuring that it can handle the high power demands of UAVs during critical operations. Its volumetric energy density of 703 Wh/l is significantly higher than the database median, allowing for more energy storage in a smaller footprint. This is particularly beneficial for long endurance drone batteries, where every gram counts. The combination of high energy and power densities makes the P50S an ideal choice for custom UAV battery packs, providing the necessary performance without compromising on weight.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the Molicel P50S cell for EVTOL applications. By modelling load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions, including different flight speeds and payloads. This allows for accurate predictions of voltage sag and usable energy, ensuring that the cell can deliver the required thrust throughout the entire flight envelope. Additionally, thermal modelling helps in understanding heat generation and managing battery temperatures, which is vital for preventing overheating and ensuring safety. By using cell-specific data in simulations, designers can confidently select the Molicel P50S as the best option for maximising flight time and efficiency in UAV operations.
