Tenpower 25PG EVTOL Weight v power trade off in pack design - how to pick the right balance.
Explore the Tenpower 25PG cell for EVTOL applications, addressing weight vs power trade-offs for optimal drone performance.
Value Propositions
Cylindrical 18650 form factor for compact design.
Nominal capacity of 9.0 Wh and 2.5 Ah for reliable performance.
Top-quartile volumetric power density of 4,059 W/l for high current demands.
Gravimetric energy density of 200 Wh/kg, ideal for lightweight applications.
Maximum continuous discharge of 20 A, suitable for demanding UAV operations.
About the Cell
The Tenpower 25PG cell features a cylindrical 18650 form factor, providing a nominal capacity of 9.0 Wh and 2.5 Ah. With a volumetric energy density of 507 Wh/l and a gravimetric energy density of 200 Wh/kg, it is designed for high-performance applications. The cell boasts a volumetric power density of 4,059 W/l, placing it among the highest in the database, and a gravimetric power density of 1,600 W/kg, which is also top-quartile compared to the median. This combination of energy and power densities makes the 25PG cell particularly suitable for UAV applications where weight and performance are critical. Additionally, the maximum continuous charge of 6.0 A and discharge of 20 A ensure that the cell can handle demanding operational requirements without overheating or compromising safety.
Application Challenges
In the EVTOL sector, the weight versus power trade-off is crucial for achieving optimal performance. The challenge lies in selecting the right battery cells that provide sufficient energy density while maintaining a lightweight profile. High energy density is essential for extending flight times, while high power density is necessary for rapid acceleration and responsiveness during flight. The Tenpower 25PG cell addresses these challenges effectively, offering a balance of energy and power that is vital for UAV applications. As UAVs are often deployed in extreme environments, ensuring reliable performance under varying conditions is paramount. The ability to predict battery performance based on temperature and state of charge (SoC) is critical for mission success, making the selection of the right cell even more important.
Why this Cell
The Tenpower 25PG cell is an excellent choice for EVTOL applications due to its impressive specifications. With a maximum continuous discharge of 20 A, it is well-suited for high-demand scenarios, ensuring that UAVs can perform effectively without risking battery failure. The cell's volumetric energy density of 507 Wh/l is around the median of the database, providing a solid foundation for long endurance flights. Furthermore, its gravimetric power density of 1,600 W/kg is in the top-quartile, allowing for efficient energy delivery during critical flight phases. This combination of high energy and power densities makes the 25PG cell a reliable option for drone battery design, enabling engineers to optimise UAV performance while managing weight constraints.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in the selection of the Tenpower 25PG cell for UAV applications. By modelling load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions, including high discharge rates and temperature fluctuations. This predictive capability allows for informed decision-making when selecting battery cells, ensuring that the chosen cell meets the specific demands of the mission. For instance, simulating the thermal rise during high current draws can help identify potential overheating issues before they occur, allowing for proactive measures to be taken. Additionally, modelling voltage sag and usable energy helps in accurately predicting the state of charge (SoC) throughout the flight, which is essential for mission planning and execution. Overall, simulation enhances the reliability and efficiency of UAV battery pack design, ensuring that the Tenpower 25PG cell is optimally utilised.
