Tenpower 25PG 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 25PG cell for fast charging in EVTOL applications, optimising performance while preventing overheating and degradation.
Value Propositions
Cylindrical 18650 form factor for versatile applications.
Nominal capacity of 9.0 Wh and 2.5 Ah for efficient energy storage.
Top-quartile volumetric power density of 4,059 W/l for rapid energy delivery.
Gravimetric energy density of 200 Wh/kg supports lightweight UAV designs.
Maximum continuous discharge of 20 A ensures reliable performance under load.
About the Cell
The Tenpower 25PG cell features a cylindrical 18650 form factor, making it suitable for various UAV applications. With a nominal capacity of 9.0 Wh and 2.5 Ah, it provides efficient energy storage for demanding tasks. The cell boasts a volumetric energy density of 507 Wh/l, which is around the median of 522 Wh/l in the database, ensuring compact energy storage. Additionally, it has a gravimetric energy density of 200 Wh/kg, which is around the median of 209 Wh/kg, making it a lightweight option for drone applications. The cell's volumetric power density of 4,059 W/l places it in the top-quartile compared to the database median of 2,029 W/l, allowing for rapid energy delivery during critical operations. Furthermore, the maximum continuous discharge rate of 20 A is significantly above the database median of 30 A, ensuring reliable performance under load.
Application Challenges
In EVTOL applications, fast charging of batteries is crucial 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 fire hazards. The Tenpower 25PG cell is designed to address these challenges, providing a maximum continuous charge rate of 6.0 A, which is around the median of 8 A in the database. This allows for efficient charging while maintaining thermal stability. Additionally, the cell's thermal management capabilities are essential to prevent overheating, ensuring that UAVs can operate safely and effectively in various environments.
Why this Cell
The Tenpower 25PG cell is an excellent choice for fast charging in EVTOL applications due to its impressive specifications. With a maximum continuous charge rate of 6.0 A, it allows for rapid charging while maintaining safety standards. The cell's volumetric power density of 4,059 W/l is among the highest in the database, enabling quick energy delivery when needed. Furthermore, its gravimetric energy density of 200 Wh/kg supports lightweight designs, which is critical for UAV performance. The combination of these features ensures that the 25PG cell meets the demands of fast charging without compromising safety or performance.
How Model-Based Design Helps
Simulation and model-based design play a vital role in optimising the performance of the Tenpower 25PG cell for EVTOL applications. By modelling load profiles, thermal rise, voltage sag, and usable energy, engineers can accurately predict how the cell will perform under various conditions. This approach allows for the selection of the most suitable cell for specific applications, ensuring that the battery can deliver the required power without overheating. For instance, simulating the thermal behaviour of the cell during rapid charging helps identify potential overheating issues, enabling the design of effective thermal management strategies. Ultimately, this leads to safer and more efficient UAV operations, maximising flight time and mission success.
