Tenpower 15SG 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 15SG cell designed 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 5.55 Wh and 1.5 Ah for efficient energy storage.
Top-quartile volumetric power density (+63% vs median of 2,029 W/l) for rapid energy delivery.
Maximum continuous discharge of 30.0 A, ensuring high performance under load.
Gravimetric energy density of 132.143 Wh/kg, supporting lightweight UAV designs.
About the Cell
The Tenpower 15SG cell features a cylindrical 18650 form factor, optimised for fast charging applications in EVTOL systems. With a nominal capacity of 5.55 Wh and 1.5 Ah, it provides efficient energy storage for drone operations. The cell boasts a volumetric energy density of 312.852 Wh/l, which is around the median, making it suitable for compact designs. Additionally, its gravimetric energy density of 132.143 Wh/kg positions it well for lightweight drone applications. The cell's maximum continuous charge current of 6.0 A and maximum continuous discharge current of 30.0 A ensure robust performance under demanding conditions. This cell is ideal for high energy density drone batteries, allowing for extended flight times without compromising safety.
Application Challenges
In the EVTOL sector, 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 lead to catastrophic failures. Effective battery thermal management is essential to prevent overheating, especially during rapid charge cycles. The Tenpower 15SG cell, with its high maximum continuous charge current of 6.0 A, is designed to handle these demands while maintaining safety and performance. The ability to manage heat generation effectively is crucial for extending drone flight time and improving UAV mission endurance, particularly in high-stakes environments.
Why this Cell
The Tenpower 15SG cell is specifically designed for fast charging applications in EVTOL systems. With a maximum continuous discharge rate of 30.0 A, it is positioned in the top-quartile compared to the median of 30 A in the database, ensuring it can deliver high power when needed. Its volumetric power density of 6257.05 W/l is among the highest in the database, allowing for rapid energy delivery without overheating. This performance is critical for applications requiring quick turnaround times and high reliability. The cell's design also focuses on preventing overheating, making it a safe choice for UAV battery pack design and optimisation.
How Model-Based Design Helps
Simulation and model-based design play a vital role in optimising the performance of the Tenpower 15SG cell for EVTOL applications. By modelling load profiles, thermal rise, and voltage sag, engineers can predict how the cell will behave under various charging conditions. This predictive capability allows for the selection of the most suitable cell for specific mission profiles, ensuring that the battery can deliver the required thrust and energy without overheating. For instance, simulations can help identify the optimal charge rates that maximise efficiency while minimising thermal risks. This approach not only enhances battery thermal management but also supports accurate drone battery state of charge (SOC) prediction, which is essential for mission planning.
