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Amprius SA65 Drones Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.

Discover the Amprius SA65 cell for drones, optimising flight time with high energy density and performance for UAV applications.

Value Propositions

  • Pouch form factor with nominal capacity of 4.38 Wh and 1.27 Ah.

  • Volumetric energy density of 458 Wh/l, around median vs competitors.

  • Gravimetric energy density of 359 Wh/kg, top-quartile vs median.

  • Maximum continuous discharge of 5.1 A, top-quartile vs median.

  • Volumetric power density of 1839 W/l, among the highest in database.

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About the Cell

The Amprius SA65 cell is designed in a pouch form factor, featuring a nominal capacity of 4.38 Wh (1.27 Ah). This cell boasts a volumetric energy density of 458 Wh/l, which is around the median compared to other cells in the market. Its gravimetric energy density stands at 359 Wh/kg, placing it in the top-quartile against the median. The maximum continuous discharge rate is 5.1 A, which is also in the top-quartile compared to the median of 30 A. Additionally, the cell achieves a volumetric power density of 1839 W/l, which is among the highest in the database, making it an excellent choice for drone applications where performance is critical.

Application Challenges

In the realm of drones, maximising flight time is paramount. This involves optimising cell selection, duty cycles, and flight speeds to ensure that drones can operate efficiently and effectively. The energy capacity of the battery directly influences how long a drone can stay airborne, which is crucial for various applications, including surveillance, delivery, and industrial inspections. High energy density is essential to extend flight times, especially in demanding environments where every minute counts. The challenge lies in selecting the right battery that can deliver the required performance without overheating or compromising safety.

Why this Cell

The Amprius SA65 cell is particularly suited for drone applications due to its impressive metrics. With a maximum continuous discharge of 5.1 A, it is in the top-quartile compared to the median of 30 A, ensuring that it can handle high power demands during flight. Its gravimetric energy density of 359 Wh/kg is also noteworthy, placing it in the top-quartile, which is vital for lightweight drone designs. The volumetric energy density of 458 Wh/l is around the median, allowing for compact battery designs that do not sacrifice performance. These attributes make the SA65 an ideal choice for UAVs aiming to maximise flight time while maintaining efficiency.

How Model-Based Design Helps

Simulation and model-based design play a crucial role in optimising battery selection for drones. By simulating load profiles, thermal behaviour, voltage sag, and usable energy, engineers can accurately predict how different cells will perform under various conditions. For instance, modelling can help identify the optimal duty cycle and flight speed that maximises energy use while preventing overheating. This approach allows for confident selection of the Amprius SA65 cell, ensuring that it meets the specific demands of drone applications. By using cell-specific data, engineers can avoid costly trial-and-error processes and enhance the reliability of drone operations.

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