EVE Energy 25P Weight v power trade off in pack design - how to pick the right balance.
Explore the EVE Energy 25P cell for UAV applications, optimising weight and power for enhanced drone performance and endurance.
Value Propositions
Cylindrical 18650 form factor for versatile applications.
Nominal capacity of 9.0 Wh and 2.5 Ah for reliable energy supply.
Top-quartile volumetric energy density of 517 Wh/l for compact designs.
Maximum continuous discharge of 30.0 A for high-performance demands.
Gravimetric power density of 2250.0 W/kg for efficient energy delivery.
About the Cell
The EVE Energy 25P cell features a cylindrical 18650 form factor, providing a nominal capacity of 9.0 Wh (2.5 Ah). With a volumetric energy density of 517 Wh/l, it ranks in the top-quartile compared to the database median of 542 Wh/l. This cell also boasts a maximum continuous discharge of 30.0 A, which is around the median, ensuring it meets the high demands of UAV applications. The gravimetric energy density is 188 Wh/kg, which is around the median, making it a competitive choice for drone battery design. The cell's volumetric power density of 6199.77 W/l is among the highest in the database, providing excellent performance for high energy density drone batteries. This combination of features makes the EVE Energy 25P an ideal candidate for lightweight drone battery packs, ensuring optimal performance in various UAV applications.
Application Challenges
In the aerospace sector, the challenge of balancing weight and power in UAV battery pack design is critical. The EVE Energy 25P cell addresses this challenge by providing a high energy density that allows for longer flight times without significantly increasing weight. This is particularly important for applications such as long endurance drone batteries and VTOL drone battery pack design, where every gram counts. The ability to optimise battery weight against power output is essential for improving UAV mission endurance and ensuring reliable performance in extreme environments. Moreover, the high discharge rate capability of the 25P cell helps prevent overheating, a common pain point in drone battery design, thus enhancing safety and reliability.
Why this Cell
The EVE Energy 25P cell is specifically designed to meet the demands of UAV applications, with a nominal capacity of 9.0 Wh and a maximum continuous discharge of 30.0 A. This performance places it in the top-quartile compared to the median of 30 A in the database, making it suitable for high discharge rate UAV batteries. Additionally, its volumetric energy density of 517 Wh/l is competitive, allowing for lightweight drone battery packs that do not compromise on performance. The cell's gravimetric power density of 2250.0 W/kg also supports efficient energy delivery, crucial for applications requiring extended flight times. These features make the EVE Energy 25P an excellent choice for custom UAV battery packs, ensuring that engineers can select cells that optimise both weight and power.
How Model-Based Design Helps
Simulation and model-based design play a vital role in the selection of the EVE Energy 25P cell for UAV applications. By modelling load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions, such as high discharge rates and temperature fluctuations. This approach allows for accurate predictions of usable energy and voltage sag, which are critical for ensuring reliable drone operation. For instance, simulations can help identify the optimal charge and discharge rates, ensuring that the battery operates within safe limits while delivering the required power. Additionally, modelling can assist in assessing the thermal management needs of the battery, preventing overheating and extending the cell's lifespan. Overall, simulation enhances the design process, enabling engineers to make informed decisions that lead to improved UAV performance and mission success.
