Molicel P26A Safety and risk management - particularly around overheating and thermal runaway during flight.
Explore the Molicel P26A cell for EVTOL applications, addressing safety and risk management challenges like overheating and thermal runaway.
Value Propositions
Cylindrical 18650 form factor for versatile applications.
Nominal capacity of 9.0 Wh and 2.5 Ah for reliable performance.
Top-quartile volumetric power density of 7111 W/l for high energy demands.
Maximum continuous discharge of 35.0 A, ideal for UAV applications.
Gravimetric energy density of 188 Wh/kg supports lightweight designs.
About the Cell
The Molicel P26A is a cylindrical 18650 lithium-ion cell with a nominal capacity of 9.0 Wh and 2.5 Ah, making it suitable for various applications, particularly in UAVs. It boasts a volumetric energy density of approximately 508 Wh/l, which is around the median of the database, ensuring efficient space utilisation. The gravimetric energy density of 188 Wh/kg is also competitive, providing a lightweight solution for drone battery packs. With a maximum continuous discharge rate of 35.0 A, this cell is designed to handle high power demands, making it an excellent choice for applications requiring rapid energy delivery. Additionally, the cell features a volumetric power density of 7111 W/l, placing it in the top-quartile compared to the database median, which enhances its suitability for high-performance UAVs. Overall, the Molicel P26A is engineered for safety and efficiency, addressing critical challenges in drone battery design.
Application Challenges
In the context of EVTOL applications, safety and risk management are paramount, particularly concerning overheating and thermal runaway during flight. The Molicel P26A cell's high energy density and robust discharge capabilities are essential for ensuring that drones can operate safely under demanding conditions. As UAVs are often deployed in extreme environments, the ability to manage thermal performance is crucial. The risk of thermal runaway can lead to catastrophic failures, making it vital to select cells that can withstand high discharge rates while maintaining stable temperatures. The Molicel P26A's design mitigates these risks, providing a reliable power source that enhances mission endurance and safety.
Why this Cell
The Molicel P26A cell stands out for its impressive specifications, particularly in the context of EVTOL applications. With a maximum continuous discharge rate of 35.0 A, it is positioned in the top-quartile compared to the database median of 30 A, ensuring that it can deliver the necessary power for demanding UAV operations. Additionally, its volumetric energy density of 508 Wh/l is competitive, providing a lightweight solution that does not compromise on performance. This cell's ability to maintain high power output while managing thermal conditions makes it an ideal choice for applications where safety is critical. Furthermore, the gravimetric energy density of 188 Wh/kg supports the design of lightweight drone battery packs, enhancing overall flight efficiency and mission success.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the selection of the Molicel P26A cell for UAV applications. By simulating load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions, including high discharge scenarios. This modelling allows for accurate assessments of voltage sag, heat generation, and usable energy, ensuring that the selected cell meets the specific demands of the mission. For instance, by analysing the thermal rise during operation, engineers can identify potential overheating risks and implement design strategies to mitigate them. This approach not only enhances the reliability of the drone but also reduces the need for costly trial-and-error testing, ultimately leading to safer and more efficient UAV operations.
