Ampace 21700A Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.
Discover the Ampace 21700A cell, designed for UAV applications to maximise flight time and optimise performance in demanding environments.
Value Propositions
Cylindrical 21700 form factor for versatile applications.
Nominal capacity of 14.8 Wh (4.0 Ah) for extended flight durations.
Top-quartile volumetric energy density of 589 Wh/l, +9% vs median.
Maximum continuous discharge of 45 A, top-quartile vs median 30 A.
Gravimetric power density of 2,379 W/kg, +12% 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 median of 542 Wh/l, making it an excellent choice for applications requiring high energy density. The cell's gravimetric energy density stands at 211.429 Wh/kg, which is around the median of 210 Wh/kg. Additionally, it boasts a maximum continuous discharge rate of 45 A, which is significantly higher than the median of 30 A, ensuring robust performance under demanding conditions. The cell's volumetric power density is 6,628 W/l, placing it among the highest in the database, which enhances its suitability for high-performance UAV applications.
Application Challenges
In the aerospace sector, maximising flight time is critical for UAVs. The Ampace 21700A cell addresses this challenge by optimising cell selection, duty cycles, and flight speeds. High energy density is essential for extending flight durations, particularly in demanding environments. The ability to maintain performance while preventing overheating is crucial, especially during high discharge scenarios. The Ampace 21700A's specifications ensure that it meets the rigorous demands of UAV applications, allowing operators to achieve longer missions without compromising safety or efficiency. The challenge lies in balancing weight, energy capacity, and thermal management to ensure reliable operation in various conditions.
Why this Cell
The Ampace 21700A cell is specifically designed for aerospace applications, where maximising flight time is paramount. With a nominal capacity of 14.8 Wh and a maximum continuous discharge rate of 45 A, it provides the necessary power for demanding UAV operations. Its volumetric energy density of 589 Wh/l is in the top-quartile compared to the median of 542 Wh/l, making it an ideal choice for long endurance drone batteries. The cell's high gravimetric power density of 2,379 W/kg, which is +12% vs median, ensures that it can deliver the required performance without adding excessive weight. This combination of features makes the Ampace 21700A a superior option for UAV battery pack design, allowing for efficient energy use and extended flight times.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the Ampace 21700A 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 optimal duty cycles and flight speeds, ensuring that the cell operates within safe thermal limits while delivering maximum energy output. For instance, simulating the thermal rise during high discharge scenarios helps prevent overheating, which is critical for maintaining battery integrity and performance. Additionally, accurate predictions of usable energy enable operators to plan missions effectively, ensuring that UAVs can complete their tasks without unexpected failures. Overall, simulation enhances the reliability and efficiency of UAV operations, making it an indispensable tool in the design and optimisation process.
