Molicel M65A Drones Mission feasibility assessment - asses what missions or use cases are possible or not using a go/no-go decision using simulation.
Explore the Molicel M65A cell for drones, designed for mission feasibility assessments with high energy density and performance for reliable operations.
Value Propositions
Cylindrical 21700 form factor for optimal integration in UAV designs.
Nominal capacity of 23.4 Wh and 6.5 Ah for extended flight times.
Top-quartile volumetric energy density of 914 Wh/l for lightweight drone battery packs.
Maximum continuous discharge of 26.0 A, ensuring high discharge rate UAV batteries.
Gravimetric power density of 1256 W/kg, supporting efficient drone powertrain performance.

About the Cell
The Molicel M65A is a cylindrical 21700 lithium-ion cell with a nominal capacity of 23.4 Wh and 6.5 Ah. It boasts a volumetric energy density of 914 Wh/l, placing it in the top-quartile compared to the median of 542 Wh/l in the database. Its gravimetric energy density of 314 Wh/kg is also notable, being significantly above the median of 210 Wh/kg. The cell supports a maximum continuous discharge of 26.0 A, which is essential for high discharge rate UAV batteries. Additionally, it features a volumetric power density of 3655 W/l, which is among the highest in the database, allowing for efficient energy delivery during demanding missions. This combination of high energy and power densities makes the M65A an excellent choice for drone applications where weight and performance are critical.
Application Challenges
In the context of drones, mission feasibility assessment is crucial for determining which missions can be executed successfully. The Molicel M65A cell's high energy density is vital for long endurance drone batteries, enabling extended flight times that are essential for various applications, including surveillance, delivery, and emergency response. The ability to assess mission feasibility using simulation is enhanced by the cell's performance characteristics, as accurate predictions of energy consumption and battery behaviour under different conditions can prevent mid-air failures and ensure reliable operations. The lightweight design of the M65A also contributes to improved UAV mission endurance, making it suitable for applications that require agility and responsiveness.
Why this Cell
The Molicel M65A cell is particularly well-suited for drones due to its impressive specifications. With a nominal capacity of 23.4 Wh and a maximum continuous discharge of 26.0 A, it supports high-performance UAV battery pack design. The cell's volumetric energy density of 914 Wh/l is significantly above the median, allowing for lightweight drone battery packs that do not compromise on energy supply. This is crucial for applications requiring long endurance, as it enables drones to carry out extended missions without frequent recharges. Furthermore, the gravimetric power density of 1256 W/kg ensures that the drone's powertrain operates efficiently, maximising flight time and payload capacity. These features make the M65A an ideal choice for custom UAV battery packs designed for demanding operational environments.
How Model-Based Design Helps
Simulation and model-based design play a pivotal role in optimising the use of the Molicel M65A cell in drone applications. By modelling load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions, such as different temperatures and states of charge (SoC). This predictive capability allows for accurate assessments of whether a drone can complete its mission without risking failure. For instance, simulating the thermal rise and voltage sag during high discharge scenarios helps in selecting the right cell for specific missions, ensuring that the drone can deliver the required thrust and energy throughout its flight. Additionally, these simulations can identify optimal flight profiles that maximise energy efficiency, further enhancing mission feasibility and operational success.


