Samsung 40T3 Drones 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 40T3 cell for drones, designed for fast charging while preventing overheating and lithium plating, ensuring safety and performance.
Value Propositions
Cylindrical 21700 form factor for efficient design.
Nominal capacity of 14.4 Wh and 4.0 Ah for reliable performance.
Volumetric energy density of 579 Wh/l, top-quartile vs median.
Gravimetric power density of 2571 W/kg, among the highest in database.
Maximum continuous discharge of 50 A, top-quartile vs median.
About the Cell
The Samsung 40T3 cell is a cylindrical 21700 battery with a nominal capacity of 14.4 Wh and 4.0 Ah. It boasts a volumetric energy density of 579 Wh/l, which is in the top-quartile compared to the database median of 541.67 Wh/l. Additionally, it has a gravimetric energy density of 206 Wh/kg, which is around the median of 209.39 Wh/kg. The cell's volumetric power density is 7240 W/l, which is among the highest in the database, while its gravimetric power density is 2571 W/kg, also among the highest. The maximum continuous discharge current is 50 A, placing it in the top-quartile compared to the median of 30 A.
Application Challenges
In the context of drones, fast charging 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 and pose safety risks. The Samsung 40T3 cell's design addresses these concerns, providing a balance of high energy density and robust thermal management capabilities. The need for lightweight drone battery packs further emphasises the importance of selecting the right cell for UAV battery pack design, ensuring that the drone can achieve long endurance while maintaining safety.
Why this Cell
The Samsung 40T3 cell is ideal for drone applications due to its high volumetric energy density of 579 Wh/l, which is in the top-quartile compared to the median. This allows for longer flight times and improved UAV mission endurance. Its maximum continuous discharge of 50 A ensures that the cell can handle high discharge rates required for demanding drone operations, making it a safe choice for UAV battery optimization. The cell's gravimetric power density of 2571 W/kg is also among the highest in the database, ensuring that it meets the performance needs of high energy density drone batteries.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the Samsung 40T3 cell for drone applications. By modelling load profiles, thermal rise, and voltage sag, engineers can predict how the cell will behave under various conditions. This allows for the selection of the most suitable cell for specific mission profiles, ensuring that the drone can achieve its operational goals without risking battery overheating or failure. Accurate predictions of usable energy and thermal behaviour help in making informed decisions during the UAV battery cell selection process, ultimately leading to safer and more efficient drone operations.
