Enpower Greentech 21700-4.5Ah Drones Safety and risk management - particularly around overheating and thermal runaway during flight.
Explore the Enpower Greentech 21700-4.5Ah cell for drones, designed for safety and risk management against overheating and thermal runaway.
Value Propositions
Cylindrical 21700 form factor for efficient space utilisation.
Nominal capacity of 15.84 Wh, ideal for drone applications.
Top-quartile power density (+58% vs median W/kg) for brisk current draws.
Maximum continuous discharge of 60.0 A, ensuring high performance.
Volumetric energy density of 619 Wh/l, supporting long endurance missions.
About the Cell
The Enpower Greentech 21700-4.5Ah cell features a cylindrical 21700 form factor, optimised for drone applications. With a nominal capacity of 15.84 Wh and a nominal current capacity of 4.4 Ah, this cell is designed to deliver reliable performance. It boasts a volumetric energy density of 619 Wh/l, which is significantly above the median of 541.67 Wh/l, making it suitable for long endurance drone missions. Additionally, the gravimetric energy density of 229.57 Wh/kg positions it well within the top quartile compared to the median of 210 Wh/kg, ensuring that drones can carry more energy without adding excessive weight. The cell's volumetric power density of 8447.4 W/l is among the highest in the database, providing the necessary power for demanding applications. With a maximum continuous discharge rate of 60.0 A, this cell can handle high current draws, making it ideal for dynamic flight scenarios.
Application Challenges
In the realm of drones, safety and risk management are paramount, particularly concerning overheating and thermal runaway during flight. The Enpower Greentech 21700-4.5Ah cell addresses these challenges effectively. Drones require batteries that not only provide sufficient energy but also maintain thermal stability under various operating conditions. The high energy density of this cell allows for extended flight times, which is critical for missions that demand reliability and efficiency. Furthermore, the ability to handle high discharge rates without overheating is essential for maintaining operational safety, especially in high-stress environments. As drones are increasingly used in critical applications, such as surveillance and emergency response, the need for dependable battery performance becomes even more crucial.
Why this Cell
The Enpower Greentech 21700-4.5Ah cell is specifically designed to meet the rigorous demands of drone applications. Its maximum continuous discharge rate of 60.0 A ensures that it can deliver the necessary power for high-performance UAVs, which is significantly above the median of 30 A in the database. This capability is vital for applications requiring rapid acceleration and sustained power output. Additionally, the cell's volumetric energy density of 619 Wh/l, which exceeds the median of 541.67 Wh/l, allows for longer flight durations without compromising on payload capacity. This combination of high energy and power density makes it an excellent choice for UAV battery pack design, ensuring that drones can operate effectively in various conditions while mitigating risks associated with overheating.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the Enpower Greentech 21700-4.5Ah cell for drone applications. By simulating load profiles, thermal behaviour, and voltage response, engineers can accurately predict how the cell will perform under different conditions. This approach allows for the identification of potential overheating issues before they arise, ensuring that the battery operates within safe limits. For instance, modelling the thermal rise during high discharge scenarios helps in selecting the right cell for specific mission profiles, thus preventing thermal runaway. Furthermore, simulation aids in determining the usable energy across the entire flight envelope, enabling designers to make informed decisions about battery capacity and configuration. This predictive capability is essential for enhancing UAV mission endurance and reliability, particularly in challenging environments.
