EVE Energy 40PL Safety and risk management - particularly around overheating and thermal runaway during flight.
Discover the EVE Energy 40PL cell, designed for UAV applications, ensuring safety and performance in thermal management during flight.
Value Propositions
Cylindrical 21700 form factor for compact design.
Nominal capacity of 14.4 Wh and 4.0 Ah for extended use.
Top-quartile volumetric energy density of 578 Wh/l.
Maximum continuous discharge of 70.0 A for high performance.
Gravimetric power density of 3,761 W/kg, ideal for UAVs.
About the Cell
The EVE Energy 40PL cell features a cylindrical 21700 form factor, providing a nominal capacity of 14.4 Wh and 4.0 Ah. With a volumetric energy density of 578 Wh/l, it ranks in the top-quartile compared to the median of 542 Wh/l in the database. The gravimetric energy density is 215 Wh/kg, which is around the median of 210 Wh/kg. The cell's volumetric power density is an impressive 10,108 W/l, which is among the highest in the database, exceeding the median of 2,029 W/l. Additionally, it boasts a maximum continuous discharge of 70.0 A, significantly higher than the median of 30 A, making it suitable for demanding UAV applications. The standard charge current is 2.0 A, with a maximum continuous charge of 8.0 A, both of which are around the median values, ensuring efficient charging capabilities.
Application Challenges
In the EVTOL sector, safety and risk management are paramount, especially concerning overheating and thermal runaway during flight. The EVE Energy 40PL cell's high energy density and robust discharge capabilities are crucial for maintaining performance under these conditions. With a maximum continuous discharge of 70.0 A, the cell can handle the high power demands of UAVs, which is essential for preventing overheating. The ability to manage thermal profiles effectively is vital in ensuring that the battery operates within safe limits, particularly during extended missions or in extreme environments. The high volumetric energy density of 578 Wh/l allows for longer flight times, which is critical for mission success and safety.
Why this Cell
The EVE Energy 40PL cell is specifically designed to meet the rigorous demands of UAV applications, particularly in safety-critical environments. Its maximum continuous discharge of 70.0 A positions it in the top-quartile compared to the median of 30 A in the database, ensuring that it can deliver the necessary power without overheating. The cell's volumetric energy density of 578 Wh/l is also significant, as it allows for longer endurance flights, addressing the challenge of extending drone flight time. Furthermore, its gravimetric power density of 3,761 W/kg is ideal for lightweight drone battery packs, making it a suitable choice for high-performance UAVs. The combination of these metrics ensures that the EVE Energy 40PL cell can effectively manage the risks associated with thermal runaway during flight.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the EVE Energy 40PL 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 extreme temperatures. This predictive capability allows for the selection of the most suitable cells for specific missions, ensuring that thermal management strategies are in place to prevent overheating. For instance, simulations can help identify the optimal charge and discharge cycles, maximising the usable energy while maintaining safety. Additionally, by understanding the internal temperature rise during operation, designers can implement effective thermal management solutions, thereby enhancing the reliability and safety of UAV operations.
