Samsung 25R Cell for EVTOL Application: Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.
Discover the Samsung 25R cell designed for EVTOL applications, optimising flight time and performance for drones with high energy density and efficiency.
Value Propositions
Cylindrical 18650 form factor with a nominal capacity of 9.0 Wh.
Volumetric energy density of 526 Wh/l, top-quartile vs median of 541.67 Wh/l.
Gravimetric energy density of 200 Wh/kg, around median compared to 210 Wh/kg.
Maximum continuous discharge of 20 A, top-quartile vs median of 30 A.
Standard charge current of 1.25 A, around median of 2 A.
About the Cell
The Samsung 25R cell features a cylindrical 18650 form factor, providing a nominal capacity of 9.0 Wh and a nominal capacity of 2.5 Ah. With a volumetric energy density of 526 Wh/l, it ranks in the top-quartile compared to the median of 541.67 Wh/l in the database. The gravimetric energy density stands at 200 Wh/kg, which is around the median of 210 Wh/kg. Additionally, it boasts a maximum continuous discharge of 20 A, placing it in the top-quartile against the median of 30 A. The standard charge current is 1.25 A, which is around the median of 2 A, making it suitable for various UAV applications.
Application Challenges
In the EVTOL sector, maximising flight time is critical. The Samsung 25R cell's specifications directly impact the ability to optimise cell selection, duty cycles, and flight speeds. High energy density is essential for extending drone flight time, while efficient thermal management is necessary to prevent overheating during operation. The challenge lies in ensuring that the selected battery can sustain high discharge rates while maintaining safety and performance, especially in demanding environments.
Why this Cell
The Samsung 25R cell is ideal for EVTOL applications due to its impressive specifications. With a maximum continuous discharge of 20 A, it is in the top-quartile compared to the median of 30 A, allowing for high power demands during flight. Its volumetric energy density of 526 Wh/l is crucial for maximising flight time, enabling longer missions without increasing weight. The cell's gravimetric energy density of 200 Wh/kg ensures that it remains lightweight, which is vital for UAV performance. These metrics collectively support the goal of optimising flight time and efficiency in UAV operations.
How Model-Based Design Helps
Simulation and model-based design play a pivotal role in selecting the right cell for EVTOL applications. By modelling load profiles, thermal behaviour, and voltage response, engineers can accurately predict the performance of the Samsung 25R cell under various conditions. This approach allows for the assessment of heat generation and energy output across different duty cycles, ensuring that the selected cell meets the demands of the mission profile. By simulating scenarios such as high discharge rates and thermal rise, designers can confidently choose the best cell, reducing the risk of failure and optimising overall drone performance.
