Ampace 21700A EVTOL Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.
Discover the Ampace 21700A cell designed for EVTOL applications, optimising flight time and performance under demanding conditions.
Value Propositions
Cylindrical 21700 form factor for efficient design.
Nominal capacity of 14.8 Wh (4.0 Ah) for extended flight.
Volumetric energy density of 589 Wh/l, top-quartile vs median.
Gravimetric power density of 2,379 W/kg, among the highest in database.
Maximum continuous discharge of 45 A, top-quartile vs median.
About the Cell
The Ampace 21700A cell features a cylindrical 21700 form factor, providing a nominal capacity of 14.8 Wh (4.0 Ah). With a volumetric energy density of 589 Wh/l, it ranks in the top-quartile compared to the database median of 542 Wh/l. The gravimetric energy density stands at 211.429 Wh/kg, which is around the median of 210 Wh/kg. Additionally, the cell boasts a volumetric power density of 6,628 W/l, which is among the highest in the database, and a gravimetric power density of 2,378.57 W/kg, also among the highest. The maximum continuous discharge current of 45 A positions it in the top-quartile compared to the median of 30 A, making it a strong candidate for demanding applications.
Application Challenges
In EVTOL applications, maximising flight time is critical. The Ampace 21700A cell's high energy density and discharge capabilities are essential for optimising the cell selection, duty cycle, and flight speed. Current and energy management are vital for ensuring that drones can operate efficiently over extended periods. The ability to handle high discharge rates without overheating is crucial, as UAVs often face demanding operational conditions. By selecting the right battery, operators can significantly enhance mission endurance and reliability, especially in challenging environments.
Why this Cell
The Ampace 21700A cell is ideal for EVTOL applications due to its impressive specifications. With a maximum continuous discharge of 45 A, it is in the top-quartile compared to the median of 30 A, ensuring it can handle the high power demands of UAVs. Its volumetric energy density of 589 Wh/l is also in the top-quartile, allowing for longer flight times without increasing weight. This cell's lightweight design, combined with its high energy and power densities, makes it a perfect choice for optimising flight time and performance in UAV applications.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in selecting the right battery for EVTOL applications. By modelling load profiles, thermal behaviour, and voltage response, engineers can predict how the Ampace 21700A cell will perform under various conditions. This approach allows for accurate assessments of usable energy and thermal management, ensuring that the selected cell meets the specific demands of the mission. By simulating different duty cycles and flight speeds, designers can optimise the battery selection process, reducing the risk of mid-air failures and enhancing overall mission success.
