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EVE Energy 25P Safety and risk management - particularly around overheating and thermal runaway during flight.

Discover the EVE Energy 25P cell for UAV applications, ensuring safety and performance while managing overheating and thermal runaway risks.

Value Propositions

  • Cylindrical 18650 form factor for compact design.

  • Nominal capacity of 9.0 Wh and 2.5 Ah for reliable energy supply.

  • Top-quartile volumetric energy density of 517 Wh/l for efficient space usage.

  • Maximum continuous discharge of 30.0 A, ideal for high-demand applications.

  • Gravimetric power density of 2250 W/kg, supporting rapid energy delivery.

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About the Cell

The EVE Energy 25P 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 517 Wh/l, it is designed for optimal space efficiency in UAV applications. The cell's gravimetric energy density is 188 Wh/kg, ensuring lightweight solutions for drone designs. Additionally, it boasts a volumetric power density of 6199 W/l, which is among the highest in the database, providing the necessary power for demanding flight profiles. The maximum continuous discharge rate of 30.0 A allows for robust performance in critical scenarios, making it suitable for high energy density drone batteries. Compared to the database median, the EVE Energy 25P cell's performance metrics position it as a top choice for UAV battery pack design.

Application Challenges

In the context of EVTOL applications, safety and risk management are paramount, particularly concerning overheating and thermal runaway during flight. The EVE Energy 25P cell's specifications are tailored to address these challenges effectively. With a maximum continuous discharge of 30.0 A, the cell can handle high power demands without compromising safety. The lightweight design, combined with high energy density, allows for extended flight times, which is crucial for UAVs operating in extreme environments. Ensuring reliable performance under varying conditions is essential to prevent overheating and maintain operational integrity. The ability to predict battery performance accurately is vital for mission success, especially in critical applications where failure is not an option.

Why this Cell

The EVE Energy 25P cell is specifically designed for UAV applications, offering a nominal capacity of 9.0 Wh and a maximum continuous discharge of 30.0 A. This performance is significant, as it places the cell in the top-quartile compared to the database median of 30 A for maximum continuous discharge. The high volumetric energy density of 517 Wh/l ensures that the cell can deliver energy efficiently, making it an excellent choice for long endurance drone batteries. Furthermore, the gravimetric power density of 2250 W/kg supports rapid energy delivery, which is essential for maintaining drone powertrain efficiency during critical missions. The combination of these metrics makes the EVE Energy 25P cell a reliable option for custom UAV battery packs, ensuring safety and performance in demanding environments.

How Model-Based Design Helps

Simulation and model-based design play a crucial role in optimising the performance of the EVE Energy 25P cell for UAV applications. By modelling load profiles, thermal behaviour, and voltage response, engineers can accurately predict how the cell will perform under various conditions. This approach allows for the identification of potential overheating issues and thermal runaway risks before they occur, ensuring that the cell operates within safe limits. Additionally, simulation enables the evaluation of energy delivery and usable energy across different flight profiles, which is essential for accurate drone battery state of charge (SoC) prediction. By utilising cell-specific data, designers can make informed decisions about battery thermal management for drones, ultimately enhancing mission reliability and safety.

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