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COSMX 82D6J7 Safety and risk management - particularly around overheating and thermal runaway during flight.

Explore COSMX 82D6J7 for safety and risk management in EVTOL applications, focusing on thermal runaway and overheating challenges.

Value Propositions

  • Nominal capacity of 74.0 Wh and 20.0 Ah for reliable energy supply.

  • Volumetric energy density of 351 Wh/l, supporting compact designs.

  • Gravimetric energy density of 157 Wh/kg, ideal for lightweight UAV applications.

  • Maximum continuous discharge of 400 A, top-quartile vs median 30 A.

  • Volumetric power density of 7026 W/l, +58% vs database median of 2029 W/l.

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About the Cell

The COSMX 82D6J7 cell features a pouch form factor, with a nominal capacity of 74.0 Wh and 20.0 Ah, making it suitable for high-performance applications. Its volumetric energy density of 351 Wh/l is advantageous for compact UAV designs, while the gravimetric energy density of 157 Wh/kg ensures lightweight solutions. The cell's maximum continuous discharge capability of 400 A places it in the top-quartile compared to the database median of 30 A, allowing for robust performance under demanding conditions. Additionally, the volumetric power density of 7026 W/l is among the highest in the database, providing the necessary power for rapid response scenarios.

Application Challenges

In EVTOL applications, safety and risk management are paramount, particularly concerning overheating and thermal runaway during flight. The high energy demands of UAVs necessitate batteries that can deliver consistent power without compromising safety. The COSMX 82D6J7 cell's high maximum continuous discharge rate of 400 A is critical in preventing overheating, ensuring that the battery can handle peak loads without risk. Furthermore, the cell's design must accommodate the unique challenges of drone operation, including varying environmental conditions and the need for reliable performance across different mission profiles.

Why this Cell

The COSMX 82D6J7 cell is specifically designed to meet the rigorous demands of EVTOL applications. With a maximum continuous discharge rate of 400 A, it is positioned in the top-quartile compared to the median of 30 A, ensuring it can handle high power draws without overheating. The cell's volumetric energy density of 351 Wh/l allows for compact battery designs, essential for lightweight UAVs. Additionally, its gravimetric energy density of 157 Wh/kg supports extended flight times, addressing the critical need to improve UAV mission endurance. This combination of features makes the COSMX 82D6J7 an optimal choice for drone battery design.

How Model-Based Design Helps

Simulation and model-based design play a crucial role in optimising the performance of the COSMX 82D6J7 cell for EVTOL applications. By modelling load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions, including high discharge rates and temperature fluctuations. This predictive capability allows for the selection of the most suitable cells for specific missions, ensuring that the battery can deliver the required thrust and energy without risking thermal runaway. Furthermore, simulation helps in understanding voltage sag and usable energy, enabling better design of drone battery packs that maximise efficiency and safety.

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