Molicel P28B Mission feasibility assessment - asses what missions or use cases are possible or not using a go/no-go decision using simulation.
Explore the Molicel P28B for mission feasibility assessments in EVTOL applications, optimising drone battery design and performance.
Value Propositions
Nominal capacity of 10.08 Wh and 2.8 Ah, ideal for UAV applications.
Cylindrical 18650 form factor, facilitating integration into various drone designs.
Top-quartile volumetric energy density of 569 Wh/l, enhancing mission endurance.
Maximum continuous discharge of 40 A, supporting high-performance UAV operations.
Gravimetric power density of 3000 W/kg, ensuring lightweight battery solutions.

About the Cell
The Molicel P28B features a cylindrical 18650 form factor with a nominal capacity of 10.08 Wh and 2.8 Ah. It boasts a volumetric energy density of 569 Wh/l, which is in the top-quartile compared to the database median of 542 Wh/l, providing significant advantages for long endurance drone applications. The gravimetric energy density stands at 210 Wh/kg, aligning closely with the database median, ensuring efficient weight management for UAVs. Additionally, the cell offers a maximum continuous discharge of 40 A, which is above the median of 30 A, making it suitable for high-demand scenarios. The volumetric power density of 8126 W/l is among the highest in the database, allowing for rapid energy delivery when required.
Application Challenges
In EVTOL applications, mission feasibility assessment is critical. The ability to accurately predict whether a drone can complete its mission based on battery performance is essential. Factors such as energy density and discharge rates directly impact the drone's flight time and reliability. For instance, with the Molicel P28B's high energy density, operators can confidently assess mission profiles, ensuring that drones can handle various payloads and environmental conditions. This capability is vital for applications ranging from industrial inspections to emergency response, where every minute of airtime counts. The challenge lies in ensuring that the battery can sustain the required energy output throughout the mission, particularly in extreme environments where temperature fluctuations can affect performance.
Why this Cell
The Molicel P28B is an excellent choice for EVTOL applications due to its impressive specifications. With a maximum continuous discharge of 40 A, it supports demanding UAV operations, ensuring that drones can perform under high loads without compromising safety. The cell's volumetric energy density of 569 Wh/l is in the top-quartile compared to the median of 542 Wh/l, allowing for longer missions without increasing weight. This is particularly important for mission feasibility assessments, where the ability to predict battery performance under various conditions is crucial. The lightweight design, combined with a gravimetric power density of 3000 W/kg, ensures that operators can optimise their UAV designs for endurance and efficiency.
How Model-Based Design Helps
Simulation and model-based design play a pivotal role in optimising battery selection for UAV applications. By modelling load profiles and thermal behaviour, engineers can predict how the Molicel P28B will perform under different conditions. This includes assessing voltage sag, heat generation, and usable energy throughout the flight envelope. For instance, simulations can reveal how the cell behaves at low states of charge (SoC) or in varying temperatures, enabling operators to make informed go/no-go decisions. This predictive capability is essential for ensuring that drones can reliably complete missions, particularly in challenging environments. By leveraging cell-specific data, designers can optimise battery thermal management and overall powertrain efficiency, leading to improved mission outcomes.


