Tenpower 50SG 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 50SG cell designed for fast charging in EVTOL applications, optimising performance while preventing overheating and degradation.
Value Propositions
Cylindrical 21700 form factor for compact design.
Nominal capacity of 18.0 Wh and 5.0 Ah for efficient energy storage.
Top-quartile volumetric power density of 4,240 W/l, +109% vs median of 2,029 W/l.
Gravimetric energy density of 257 Wh/kg, around median for lightweight applications.
Maximum continuous discharge of 30 A, top-quartile vs median of 30 A.
About the Cell
The Tenpower 50SG cell features a cylindrical 21700 form factor, providing a nominal capacity of 18.0 Wh and 5.0 Ah. With a volumetric energy density of 707 Wh/l, it ranks among the highest in the database, significantly enhancing energy storage capabilities for UAV applications. The gravimetric energy density of 257 Wh/kg is around the median, making it suitable for lightweight drone battery packs. The cell also boasts a volumetric power density of 4,240 W/l, which is top-quartile compared to the database median of 2,029 W/l, ensuring it can deliver high power outputs efficiently. Additionally, the maximum continuous discharge rate of 30 A places it in the top-quartile, allowing for robust performance during demanding flight scenarios.
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 failures. High discharge rates are essential for rapid charging, but they must be managed carefully to prevent overheating. The Tenpower 50SG cell's maximum continuous discharge rate of 30 A is crucial in this context, as it allows for effective energy transfer while maintaining thermal stability. The cell's design must also accommodate the specific energy demands of UAVs, ensuring that it can support long endurance missions without compromising safety or performance.
Why this Cell
The Tenpower 50SG cell is specifically designed to meet the challenges of fast charging in EVTOL applications. With a maximum continuous discharge rate of 30 A, it is positioned in the top-quartile compared to the median of 30 A, ensuring that it can handle high current loads without overheating. The cell's volumetric energy density of 707 Wh/l is among the highest in the database, providing ample energy storage for extended missions. This combination of high energy and power density makes the 50SG an ideal choice for UAV battery pack design, allowing for lightweight and efficient solutions that do not compromise on performance. Furthermore, its gravimetric energy density of 257 Wh/kg is around the median, making it suitable for applications where weight is a critical factor.
How Model-Based Design Helps
Simulation and model-based design play a vital role in optimising the performance of the Tenpower 50SG cell for EVTOL applications. By modelling load profiles, thermal rise, and voltage sag, engineers can predict how the cell will behave under various operating conditions. This allows for the selection of the most suitable cell for specific missions, ensuring that it can deliver the required thrust and energy efficiently. For instance, simulating the thermal behaviour of the cell under high discharge rates helps identify potential overheating issues before they arise, enabling proactive design adjustments. Additionally, accurate modelling of usable energy ensures that operators can make informed decisions about mission feasibility, particularly in challenging environments. This predictive capability is essential for enhancing UAV battery performance and reliability.
