Samsung 25S EVTOL Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.
Discover the Samsung 25S cell for EVTOL applications. Optimise flight time with high energy density and lightweight design for drones.
Value Propositions
Cylindrical 18650 form factor for versatile applications.
Nominal capacity of 9.125 Wh and 2.45 Ah for reliable performance.
Volumetric energy density of 526 Wh/l, around median for efficient space use.
Gravimetric power density of 2680 W/kg, top-quartile vs median for high current draws.
Maximum continuous discharge of 35 A, ensuring robust performance under load.
About the Cell
The Samsung 25S cell features a cylindrical 18650 form factor, providing a nominal capacity of 9.125 Wh (2.45 Ah). With a volumetric energy density of 526 Wh/l, it is around the median in the market, allowing for efficient use of space in UAV applications. The gravimetric energy density stands at 194 Wh/kg, which is slightly below the median, yet still offers a competitive edge for lightweight drone battery packs. Additionally, the cell boasts a volumetric power density of 7266 W/l, which is among the highest in the database, making it ideal for applications requiring rapid power delivery. The gravimetric power density of 2680 W/kg places it in the top-quartile, ensuring that it can handle high discharge rates effectively.
Application Challenges
In the EVTOL sector, maximising flight time is crucial. The Samsung 25S cell's specifications directly address this challenge by optimising the cell selection, duty cycle, and flight speed. The nominal capacity of 9.125 Wh is essential for extending drone flight time, while the high volumetric power density allows for efficient energy use during demanding flight profiles. In practical terms, this means that UAV operators can achieve longer missions without the need for frequent recharges, which is vital in applications such as industrial inspections or emergency response. The ability to prevent overheating and ensure safe battery operation is paramount, especially in extreme environments where thermal management is critical.
Why this Cell
The Samsung 25S cell is specifically designed for EVTOL applications, where maximising flight time is essential. With a maximum continuous discharge of 35 A, it ensures that drones can perform under high loads without compromising safety. The gravimetric power density of 2680 W/kg is in the top-quartile compared to the median of 750 W/kg, allowing for efficient energy delivery during critical flight phases. This performance is complemented by a volumetric energy density of 526 Wh/l, which supports the design of lightweight drone battery packs that do not sacrifice capacity for weight. These metrics make the Samsung 25S an excellent choice for UAV battery optimisation, ensuring that operators can rely on their drones for extended missions.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the Samsung 25S cell for EVTOL applications. By modelling load profiles, engineers can predict how the cell will behave under various conditions, including thermal rise and voltage sag. This predictive capability allows for the selection of the most suitable cell for specific mission profiles, ensuring that the drone can deliver the required thrust and energy throughout its flight. Additionally, simulations can help identify the optimal duty cycle and flight speed, further enhancing the overall efficiency of the UAV. By using cell-specific data, operators can make informed decisions that improve mission feasibility and extend flight times, ultimately leading to more successful UAV operations.
