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Molicel P50S Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.

Discover the Molicel P50S cell designed for drones, optimising flight time and performance while addressing key challenges in UAV battery design.

Value Propositions

  • Cylindrical 21700 form factor for compact design.

  • Nominal capacity of 18.0 Wh and 5.0 Ah for extended use.

  • Volumetric energy density of 703 Wh/l, top-quartile vs median.

  • Gravimetric power density of 5070 W/kg, among the highest in database.

  • Maximum continuous discharge of 100 A, top-quartile vs median.

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About the Cell

The Molicel P50S is a cylindrical 21700 lithium-ion cell, featuring a nominal capacity of 18.0 Wh and 5.0 Ah. With a volumetric energy density of 703 Wh/l, it stands out in the market, being in the top-quartile compared to the median of 541.67 Wh/l. The gravimetric energy density is 253.521 Wh/kg, which is significantly above the database median of 210 Wh/kg. Additionally, the cell boasts a volumetric power density of 14068 W/l, which is among the highest in the database, and a gravimetric power density of 5070.42 W/kg, also among the highest. The standard charge current is 5.0 A, with a maximum continuous charge of 25.0 A, and a maximum continuous discharge of 100.0 A, making it suitable for demanding applications.

Application Challenges

In the aerospace sector, maximising flight time is critical. The Molicel P50S cell addresses the challenge of optimising cell selection, duty cycle, and flight speed to enhance drone performance. With the increasing demand for long endurance drone batteries, the need for high energy density and lightweight battery packs is paramount. The P50S cell's specifications allow for extended flight times, which is essential for applications such as industrial inspections and emergency response missions. The ability to prevent overheating and ensure safe battery operation is also crucial in these scenarios, making the P50S an ideal choice for UAV applications.

Why this Cell

The Molicel P50S cell is designed specifically for applications requiring maximised flight time. Its nominal capacity of 18.0 Wh and 5.0 Ah ensures that drones can operate longer without the need for frequent recharges. The cell's volumetric energy density of 703 Wh/l places it in the top-quartile compared to the median, allowing for more energy storage in a compact form. Furthermore, the maximum continuous discharge of 100 A ensures that the cell can handle high power demands, which is essential for UAV battery optimisation. This capability, combined with its lightweight design, makes the P50S an excellent choice for custom UAV battery packs.

How Model-Based Design Helps

Simulation and model-based design play a crucial role in optimising the performance of the Molicel P50S cell for UAV applications. By modelling load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions, such as high discharge rates and temperature fluctuations. This predictive capability allows for the selection of the most suitable cell for specific missions, ensuring that drones can achieve their required flight times without compromising safety. Additionally, simulations can help in understanding voltage sag and usable energy, enabling better planning and execution of drone missions.

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