Samsung 25R Safety and risk management - particularly around overheating and thermal runaway during flight.
Explore the Samsung 25R cell for EVTOL applications, focusing on safety and risk management to prevent overheating and thermal runaway during flight.
Value Propositions
Cylindrical 18650 form factor for compact design.
Nominal capacity of 9.0 Wh and 2.5 Ah for reliable performance.
Top-quartile volumetric energy density of 526 Wh/l for efficient space use.
Maximum continuous discharge of 20.0 A, ensuring high performance under load.
Gravimetric power density of 1600 W/kg, supporting demanding UAV applications.
About the Cell
The Samsung 25R cell features a cylindrical 18650 form factor, making it ideal for compact UAV designs. With a nominal capacity of 9.0 Wh and 2.5 Ah, it provides reliable energy output for various applications. The cell boasts a volumetric energy density of 526 Wh/l, placing it in the top-quartile compared to the database median of 541.67 Wh/l, which is crucial for optimising space in drone battery packs. Additionally, the maximum continuous discharge rate of 20.0 A ensures that the cell can handle high power demands, while the gravimetric energy density of 200 Wh/kg aligns well with the need for lightweight solutions in UAV designs. This combination of features makes the Samsung 25R a strong candidate for high energy density drone batteries.
Application Challenges
In the EVTOL sector, safety and risk management are paramount, particularly concerning overheating and thermal runaway during flight. The Samsung 25R cell's high energy density and robust discharge capabilities are essential for maintaining performance while mitigating risks. As UAVs operate in various environments, ensuring that the battery can withstand extreme conditions without compromising safety is critical. The ability to manage thermal performance effectively is vital for extending drone flight time and improving mission endurance, especially in high-stress scenarios where overheating could lead to catastrophic failures.
Why this Cell
The Samsung 25R cell is particularly suited for EVTOL applications due to its impressive specifications. With a maximum continuous discharge of 20.0 A, it is positioned in the top-quartile compared to the database median of 30 A, ensuring that it can meet the high demands of UAV operations. Furthermore, its volumetric energy density of 526 Wh/l is advantageous for lightweight drone battery packs, allowing for longer flight times without adding excessive weight. This cell's performance characteristics make it an excellent choice for applications requiring high energy density and safety, addressing the core challenges of overheating and thermal management.
How Model-Based Design Helps
Utilising simulation and model-based design is crucial for optimising the performance of the Samsung 25R cell in UAV applications. By modelling load profiles, thermal behaviour, and voltage response, engineers can predict how the cell will perform under various conditions. This approach allows for the identification of potential overheating issues before they arise, enabling the selection of the most suitable cell for specific mission profiles. For instance, simulations can help determine the optimal discharge rates and energy usage, ensuring that the UAV can operate safely and efficiently. By accurately predicting the state of charge (SoC) and thermal dynamics, operators can make informed decisions about mission feasibility, ultimately enhancing the reliability of drone operations.
