Amprius SA30 Fast charge of the batteries - how to charge the battery quickly without overheating the cells or causing lithium plating which could degrade the battery or cause it to catch fire.
Discover the Amprius SA30 cell for fast charging in EVTOL applications, optimising performance while preventing overheating and lithium plating.
Value Propositions
Pouch form factor with nominal capacity of 87.72 Wh and 25.8 Ah.
Volumetric energy density of 699 Wh/l, placing it in the top-quartile vs median.
Gravimetric energy density of 325 Wh/kg, ensuring lightweight UAV battery packs.
Maximum continuous discharge of 103.2 A, enabling high discharge rate UAV batteries.
Volumetric power density of 2796 W/l, +38% vs database median of 2029 W/l.
About the Cell
The Amprius SA30 cell is designed in a pouch form factor, offering a nominal capacity of 87.72 Wh and 25.8 Ah. With a volumetric energy density of 699 Wh/l, it stands out in the top-quartile compared to the median of 541.67 Wh/l in the database. Its gravimetric energy density of 325 Wh/kg ensures that it is suitable for lightweight drone battery packs, which is critical for UAV applications. The cell also boasts a maximum continuous discharge of 103.2 A, making it ideal for high discharge rate UAV batteries. Additionally, the volumetric power density of 2796 W/l is +38% vs the database median of 2029 W/l, making it a powerful choice for demanding applications.
Application Challenges
In EVTOL applications, fast charging of batteries is crucial to ensure operational efficiency. The challenge lies in charging the battery quickly without overheating the cells or causing lithium plating, which can degrade the battery or even lead to catastrophic failures. The Amprius SA30 cell addresses these challenges with its high energy density and robust thermal management capabilities. The ability to handle high charge currents while maintaining thermal stability is essential for preventing overheating, which is a common issue in fast charging scenarios. This cell's design allows for efficient energy transfer, ensuring that UAVs can achieve longer flight times without compromising safety.
Why this Cell
The Amprius SA30 cell is particularly suited for EVTOL applications due to its impressive metrics. With a maximum continuous charge of 52.0 A and a maximum continuous discharge of 103.2 A, it supports fast charging while ensuring that the battery can deliver the necessary power during flight. The volumetric energy density of 699 Wh/l allows for compact battery designs, which is critical for UAVs that require lightweight solutions. Furthermore, the cell's gravimetric energy density of 325 Wh/kg ensures that it meets the demands of high energy density drone batteries, making it a reliable choice for UAV battery pack design. The combination of these features positions the SA30 as a leading option for those looking to optimise UAV battery performance.
How Model-Based Design Helps
Simulation and model-based design play a vital role in optimising the performance of the Amprius SA30 cell for EVTOL applications. By modelling load profiles, thermal rise, and voltage sag, engineers can predict how the cell will behave under various conditions. This predictive capability allows for the selection of the most suitable cell for specific mission profiles, ensuring that the battery can deliver the required energy without overheating. Additionally, simulations can help in understanding the usable energy across different flight envelopes, which is crucial for accurate drone battery SOC prediction. By leveraging these advanced modelling techniques, designers can make informed decisions that enhance battery thermal management and overall UAV performance.
