Samsung 20S Safety and risk management - particularly around overheating and thermal runaway during flight. Core Technical Keywords
Explore the Samsung 20S cell for EVTOL applications, focusing on safety and risk management against overheating and thermal runaway during flight.
Value Propositions
Cylindrical 18650 form factor for compact UAV designs.
Nominal capacity of 7.2 Wh and 2.0 Ah for reliable energy supply.
Top-quartile volumetric power density of 6228 W/l for high performance.
Gravimetric energy density of 150 Wh/kg, ideal for lightweight applications.
Maximum continuous discharge of 30 A, ensuring robust performance.
About the Cell
The Samsung 20S cell features a cylindrical 18650 form factor, providing a nominal capacity of 7.2 Wh and 2.0 Ah. With a volumetric energy density of 415 Wh/l, it ranks among the highest in the database, making it suitable for long endurance drone batteries. The gravimetric energy density of 150 Wh/kg positions it well for lightweight drone battery packs. Additionally, the cell boasts a top-quartile volumetric power density of 6228 W/l, which is essential for high energy density drone batteries. The maximum continuous discharge rate of 30 A ensures that the cell can handle demanding applications, particularly in UAV battery optimization scenarios. Overall, the Samsung 20S cell is designed to meet the rigorous demands of drone battery design and UAV battery pack design.
Application Challenges
In the EVTOL sector, safety and risk management are paramount, especially concerning overheating and thermal runaway during flight. The Samsung 20S cell's performance metrics are critical in addressing these challenges. With a maximum continuous discharge of 30 A, the cell can support high power demands while maintaining thermal stability. The high volumetric energy density of 415 Wh/l allows for extended flight times, which is crucial for UAVs operating in extreme environments. Furthermore, the ability to manage thermal performance effectively is essential for preventing battery overheating, ensuring safe battery packs for UAVs. These factors collectively contribute to improving UAV mission endurance and reliability.
Why this Cell
The Samsung 20S cell is particularly suited for EVTOL applications due to its impressive specifications. With a maximum continuous discharge of 30 A, it is positioned in the top-quartile compared to the database median of 30 A, ensuring it can handle high discharge rates required for demanding flight profiles. The gravimetric energy density of 150 Wh/kg is around the median, providing a balance between weight and energy capacity, which is vital for drone battery cell selection. The high volumetric power density of 6228 W/l, which is +58% vs the database median, supports rapid energy delivery, essential for UAV battery performance testing and optimizing drone powertrain efficiency. These attributes make the Samsung 20S an excellent choice for custom UAV battery packs.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in selecting the right battery cell for UAV applications. By modelling load profiles, thermal rise, and voltage sag, engineers can predict the performance of the Samsung 20S cell under various conditions. This approach allows for accurate assessments of usable energy and thermal behaviour during flight, which is particularly important for safety and risk management in EVTOL applications. For instance, simulating the thermal behaviour of the cell can help identify potential overheating issues before they occur, ensuring that the battery operates within safe limits. Additionally, these simulations facilitate the selection of the most suitable cell for specific mission profiles, ultimately enhancing the reliability and efficiency of drone operations.
