Tenpower 40TG 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 Tenpower 40TG cell for fast charging applications. Achieve high energy density and performance without overheating risks. Ideal for UAVs.
Value Propositions
Cylindrical 21700 form factor for optimal integration.
Nominal capacity of 14.4 Wh and 4.0 Ah for reliable energy delivery.
Top-quartile volumetric power density of 5,030 W/l for rapid energy transfer.
Gravimetric energy density of 215 Wh/kg, supporting lightweight designs.
Maximum continuous discharge of 35 A, ideal for high-demand applications.
About the Cell
The Tenpower 40TG cell features a cylindrical 21700 form factor, providing a nominal capacity of 14.4 Wh and 4.0 Ah. Its volumetric energy density is 575 Wh/l, which is around the median in the database, while its gravimetric energy density stands at 215 Wh/kg, slightly above the median of 210 Wh/kg. The cell boasts a volumetric power density of 5,030 W/l, placing it in the top quartile compared to the database median of 2,029 W/l. Additionally, it has a maximum continuous discharge rate of 35 A, which is significantly higher than the median of 30 A, making it suitable for demanding applications. The standard charge current is 2.0 A, with a maximum continuous charge of 6.0 A, both of which are around the median values in the database.
Application Challenges
In the EVTOL application, fast charging of batteries is critical to ensure that drones can be deployed quickly and efficiently. The challenge lies in charging the battery without overheating the cells or causing lithium plating, which can degrade battery performance and safety. The Tenpower 40TG cell, with its high energy density and robust discharge capabilities, is designed to meet these challenges. The ability to handle a maximum continuous charge of 6.0 A allows for rapid charging, while its thermal management features help prevent overheating during the charging process. This is essential for maintaining battery integrity and ensuring safe operation in demanding environments.
Why this Cell
The Tenpower 40TG cell is an excellent choice for EVTOL applications due to its impressive specifications. With a maximum continuous discharge rate of 35 A, it can support high-demand operations without overheating, which is crucial for fast charging scenarios. Additionally, its volumetric power density of 5,030 W/l is among the highest in the database, providing the necessary power for quick energy transfer. This cell's gravimetric energy density of 215 Wh/kg also supports lightweight designs, making it ideal for UAV applications where weight is a critical factor. Overall, the 40TG cell combines high performance with safety, addressing the challenges of fast charging effectively.
How Model-Based Design Helps
Simulation and model-based design play a vital role in optimising the performance of the Tenpower 40TG cell for EVTOL applications. By simulating load profiles and thermal behaviour, engineers can predict how the cell will respond under various charging conditions. This includes modelling heat generation during fast charging, which is essential to prevent overheating and ensure safe operation. Additionally, simulations can help in understanding voltage sag and usable energy, allowing for more accurate predictions of battery performance in real-world scenarios. This data-driven approach enables the selection of the most suitable cells for specific applications, ensuring that the chosen battery meets the demanding requirements of UAV operations.
