EVE Energy 40PL Drones Weight v power trade off in pack design - how to pick the right balance.
Explore the EVE Energy 40PL cell for drones, optimising weight and power for enhanced performance in UAV applications. Discover its advantages.
Value Propositions
Cylindrical 21700 form factor for efficient design.
Nominal capacity of 14.4 Wh and 4.0 Ah for reliable energy supply.
Top-quartile volumetric energy density of 578 Wh/l for compact designs.
Maximum continuous discharge of 70.0 A, ensuring high performance.
Gravimetric power density of 3,761 W/kg, ideal for dynamic UAV applications.
About the Cell
The EVE Energy 40PL cell features a cylindrical 21700 form factor, providing a nominal capacity of 14.4 Wh (4.0 Ah). With a volumetric energy density of 578 Wh/l, it stands out in compact UAV battery designs. The cell also boasts a maximum continuous discharge of 70.0 A, which is in the top-quartile compared to the database median of 30 A, ensuring robust performance for demanding applications. Additionally, its gravimetric energy density of 215 Wh/kg is competitive, offering a lightweight solution for drone manufacturers. This combination of features makes the 40PL an excellent choice for high-energy density drone batteries, especially in scenarios where weight and power are critical considerations.
Application Challenges
In the context of drones, the challenge of balancing weight and power in battery pack design is paramount. The EVE Energy 40PL cell addresses this challenge effectively. Drones require batteries that not only provide sufficient energy for extended flight times but also maintain a lightweight profile to enhance manoeuvrability and efficiency. The weight versus power trade-off is crucial, as heavier batteries can significantly reduce flight time and operational efficiency. The 40PL's high energy density allows for longer endurance, making it suitable for various applications, including industrial inspections, surveillance, and delivery services. By optimising battery design, manufacturers can ensure that their UAVs meet mission requirements without compromising performance or safety.
Why this Cell
The EVE Energy 40PL cell is specifically designed to meet the demands of drone applications, particularly in the context of weight versus power trade-offs. With a volumetric energy density of 578 Wh/l, it is among the highest in the database, allowing for compact battery designs that do not sacrifice performance. The maximum continuous discharge rate of 70.0 A positions it in the top-quartile compared to the median of 30 A, making it ideal for high discharge rate UAV batteries. This capability ensures that drones can perform under demanding conditions without overheating or experiencing voltage sag. Furthermore, the cell's lightweight design, with a gravimetric energy density of 215 Wh/kg, supports the development of lightweight drone battery packs, enhancing overall UAV efficiency and endurance.
How Model-Based Design Helps
Simulation and model-based design play a critical role in optimising the performance of the EVE Energy 40PL cell in drone applications. By modelling load profiles, engineers can predict how the cell will behave under various conditions, including thermal rise and voltage sag. This predictive capability allows for informed decisions when selecting cells for UAVs, ensuring that the chosen battery can deliver the required thrust and energy throughout the flight envelope. For instance, simulations can identify the optimal discharge rates and thermal management strategies, preventing overheating and extending battery life. Additionally, by analysing energy consumption across different flight profiles, manufacturers can standardise energy use, leading to more efficient mission planning and execution. Overall, simulation enhances the reliability and performance of drone battery systems, making it an invaluable tool in the design process.
