Molicel P28A Safety and risk management - particularly around overheating and thermal runaway during flight.
Discover the Molicel P28A, a high-performance battery designed for EVTOL applications, ensuring safety and reliability during critical missions.
Value Propositions
Cylindrical 18650 form factor for versatile applications.
Nominal capacity of 10.08 Wh and 2.8 Ah for extended use.
Volumetric energy density of 589 Wh/l, top-quartile vs median.
Gravimetric power density of 2625 W/kg, among the highest in database.
Maximum continuous discharge of 35 A, ensuring robust performance.
About the Cell
The Molicel P28A is a cylindrical 18650 lithium-ion cell designed for high-performance applications, particularly in EVTOL and drone technology. With a nominal capacity of 10.08 Wh and 2.8 Ah, it offers a significant energy reserve for extended missions. The cell boasts a volumetric energy density of 589 Wh/l, placing it in the top-quartile compared to the median of 541.67 Wh/l in the database. Its gravimetric energy density stands at 210 Wh/kg, which is around the median, ensuring a lightweight solution for drone applications. Additionally, the cell features a maximum continuous discharge rate of 35 A, which is crucial for high-demand scenarios, and a volumetric power density of 7364 W/l, indicating its capability to deliver power efficiently. This combination of features makes the Molicel P28A an ideal choice for UAV battery pack design, particularly where safety and performance are paramount.
Application Challenges
In the context of EVTOL applications, safety and risk management are critical, especially concerning overheating and thermal runaway during flight. The Molicel P28A addresses these challenges by providing a robust energy solution that can withstand the rigours of flight. The high energy density ensures that drones can operate for longer periods without the risk of battery failure, which is essential for mission-critical operations. Additionally, the maximum continuous discharge rate of 35 A allows for the necessary power output during peak demand, reducing the likelihood of overheating. As drones are often deployed in extreme environments, the ability to maintain performance under varying conditions is vital. The P28A's design mitigates risks associated with thermal runaway, ensuring that operators can rely on their UAVs for safe and efficient missions.
Why this Cell
The Molicel P28A is specifically engineered to meet the demands of EVTOL applications, particularly in safety and risk management. With a maximum continuous discharge rate of 35 A, it is positioned in the top-quartile compared to the median of 30 A in the database, allowing for high discharge rates that are crucial for UAV performance. The cell's volumetric energy density of 589 Wh/l is significantly above the median, providing longer flight times and enhancing mission endurance. Furthermore, its gravimetric power density of 2625 W/kg is among the highest in the database, ensuring that the cell can deliver power efficiently without adding excessive weight. This combination of high energy and power densities, along with robust thermal management capabilities, makes the Molicel P28A an optimal choice for drone battery cell selection, particularly in applications where safety is paramount.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the Molicel P28A for EVTOL applications. By modelling load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions, including high discharge scenarios that could lead to overheating. This predictive capability allows for the selection of the most suitable cells based on their thermal characteristics and energy output. For instance, simulating the thermal rise during peak loads helps identify potential risks of thermal runaway, enabling proactive design adjustments. Additionally, voltage sag and usable energy can be accurately forecasted, ensuring that operators have reliable data for mission planning. This approach not only enhances safety but also improves overall UAV performance, allowing for more efficient battery thermal management and better energy utilisation during flight.
