EVE Energy 25P - Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.
Discover how EVE Energy's 25P cell maximises flight time for drones, optimising cell selection and performance for enhanced UAV efficiency.
Value Propositions
Cylindrical 18650 form factor with nominal capacity of 9.0 Wh and 2.5 Ah.
Volumetric energy density of 517 Wh/l, around median for high-performance cells.
Gravimetric energy density of 188 Wh/kg, ensuring lightweight solutions for UAV applications.
Maximum continuous discharge of 30.0 A, top-quartile vs median of 30 A.
Volumetric power density of 6199 W/l, among the highest in the database.
About the Cell
The EVE Energy 25P cell is designed in a cylindrical 18650 form factor, featuring a nominal capacity of 9.0 Wh and 2.5 Ah. With a volumetric energy density of 517 Wh/l, it stands around the median for high-performance cells, making it suitable for various UAV applications. The gravimetric energy density of 188 Wh/kg ensures that the cell remains lightweight, which is critical for drone operations. Additionally, the maximum continuous discharge rate of 30.0 A places it in the top-quartile compared to the median of 30 A in the database, allowing for robust performance under demanding conditions. The cell also boasts a volumetric power density of 6199 W/l, which is among the highest in the database, enabling efficient energy delivery during flight.
Application Challenges
In the context of EVTOL and the challenge to maximise flight time, optimising cell selection, duty cycle, and flight speed is crucial. Drones require batteries that can deliver consistent power while maintaining thermal stability, especially in harsh environments. The EVE Energy 25P cell's high energy density and discharge capabilities are essential for extending flight durations. Current and energy management are vital; a battery that can sustain high discharge rates without overheating is necessary to ensure mission success. The ability to predict battery performance under varying conditions is also critical, as it directly impacts the drone's operational efficiency and reliability.
Why this Cell
The EVE Energy 25P cell is an excellent choice for EVTOL applications aiming to maximise flight time. With a maximum continuous discharge of 30.0 A, it is in the top-quartile compared to the median of 30 A, ensuring that it can handle demanding power requirements during flight. Its volumetric energy density of 517 Wh/l is around the median, providing a balance between energy storage and weight, which is crucial for UAV performance. The lightweight design, coupled with a gravimetric energy density of 188 Wh/kg, allows for longer flight times without compromising payload capacity. These metrics make the 25P cell a reliable option for drone battery optimisation.
How Model-Based Design Helps
Simulation and model-based design play a pivotal role in selecting the right battery for UAV applications. By modelling load profiles, thermal behaviour, and voltage response, engineers can predict how the EVE Energy 25P cell will perform under various conditions. This approach allows for accurate assessments of usable energy and thermal rise, ensuring that the selected cell meets the specific demands of the mission. For instance, simulating different duty cycles helps identify the optimal balance between energy consumption and flight speed, ultimately leading to improved mission planning and execution. This predictive capability reduces the risk of mid-air failures and enhances overall operational reliability.
