Samsung 20S Fast charge of the batteries - how to charge the battery quickly without overheating the cells or causing lithium plating which could degrade the battery or cause it to catch fire.
Discover the Samsung 20S battery for fast charging in EVTOL applications, optimising performance while preventing overheating and degradation.
Value Propositions
Cylindrical 18650 form factor for compact design.
Nominal capacity of 7.2 Wh and 2.0 Ah for reliable performance.
Top-quartile volumetric power density of 6228 W/l for rapid energy delivery.
Gravimetric energy density of 150 Wh/kg, suitable for lightweight applications.
Maximum continuous discharge of 30 A, ideal for high-demand UAV operations.
About the Cell
The Samsung 20S battery 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 around the median compared to other batteries in the database. The gravimetric energy density of 150 Wh/kg is also around the median, making it a solid choice for various applications. The battery boasts a volumetric power density of 6228 W/l, placing it in the top-quartile category, which is crucial for applications requiring rapid energy delivery. Additionally, the maximum continuous discharge rate of 30 A allows for high-performance UAV operations, ensuring that the battery can meet the demands of fast charging without overheating.
Application Challenges
In EVTOL applications, fast charging of batteries is critical to ensure operational efficiency. The challenge lies in charging the battery quickly without overheating the cells or causing lithium plating, which can degrade the battery or even lead to catastrophic failure. The Samsung 20S battery, with its high energy density and robust discharge capabilities, is designed to address these challenges. By optimising the charging process, it is possible to extend drone flight times and improve mission endurance, which is essential for various UAV applications, including industrial inspections and emergency response.
Why this Cell
The Samsung 20S battery is particularly suited for EVTOL applications due to its impressive specifications. With a maximum continuous discharge rate of 30 A, it is positioned in the top-quartile compared to the database median of 30 A. This capability allows for high discharge rates necessary for demanding UAV operations. Furthermore, the volumetric power density of 6228 W/l is among the highest in the database, ensuring that energy can be delivered rapidly without compromising safety. The combination of these features makes the Samsung 20S an optimal choice for fast charging applications, addressing the critical challenge of overheating and lithium plating.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the Samsung 20S battery in EVTOL applications. By modelling load profiles and thermal behaviour, engineers can predict how the battery will respond under various charging conditions. This includes assessing heat generation and voltage response during rapid charging scenarios. Such simulations enable the selection of the most suitable battery cells for specific applications, ensuring that the chosen cells can handle the required energy demands without overheating. Additionally, real-time data from simulations can inform decisions on charging strategies, ultimately enhancing the reliability and safety of UAV operations.
