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Amprius SA88 Mission feasibility assessment - asses what missions or use cases are possible or not using a go/no-go decision using simulation.

Explore the Amprius SA88 cell for EVTOL applications, optimising drone battery design and enhancing mission feasibility with advanced simulation techniques.

Value Propositions

  • Pouch form factor with nominal capacity of 33.15 Wh and 9.75 Ah.

  • Volumetric energy density of 777 Wh/l, +49% vs database median of 542 Wh/l.

  • Gravimetric energy density of 356 Wh/kg, top-quartile vs median of 210 Wh/kg.

  • Maximum continuous charge of 100 A, among the highest in database.

  • Volumetric power density of 7968 W/l, +295% vs database median of 2029 W/l.

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About the Cell

The Amprius SA88 cell is designed for high-performance applications, featuring a pouch form factor that allows for efficient space utilisation. With a nominal capacity of 33.15 Wh and 9.75 Ah, it provides significant energy storage for UAVs. The cell boasts a volumetric energy density of 777 Wh/l, which is +49% compared to the database median of 542 Wh/l, making it ideal for long endurance drone batteries. Its gravimetric energy density of 356 Wh/kg places it in the top-quartile compared to the median of 210 Wh/kg, ensuring lightweight solutions for UAV battery pack design. The maximum continuous charge rate of 100 A positions it among the highest in the database, facilitating rapid energy replenishment for demanding missions. Additionally, the volumetric power density of 7968 W/l is +295% higher than the median of 2029 W/l, supporting high discharge rates required for UAV battery optimisation.

Application Challenges

In the context of EVTOL and mission feasibility assessment, the Amprius SA88 cell addresses critical challenges in drone battery design. The ability to assess what missions or use cases are possible using simulation is paramount. High energy density is essential for extending drone flight time, while lightweight battery packs are crucial for improving UAV mission endurance. The cell's performance metrics ensure that it can operate effectively in extreme environments, preventing overheating and ensuring safe battery packs for UAVs. Accurate state of charge (SOC) prediction is vital for mission planning, allowing operators to make informed go/no-go decisions based on real-time data.

Why this Cell

The Amprius SA88 cell is particularly suited for EVTOL applications due to its impressive specifications. With a maximum continuous charge rate of 100 A, it allows for rapid energy replenishment, which is crucial for high-demand missions. The cell's gravimetric energy density of 356 Wh/kg, which is in the top-quartile compared to the median of 210 Wh/kg, ensures that UAVs can carry more payload without compromising flight time. Furthermore, its volumetric energy density of 777 Wh/l, which exceeds the median by +49%, supports long endurance drone batteries, making it an excellent choice for UAV battery pack design. These attributes collectively enhance mission feasibility, enabling operators to confidently select the right cells for their UAVs.

How Model-Based Design Helps

Simulation and model-based design play a critical role in optimising the use of the Amprius SA88 cell for EVTOL applications. By modelling load profiles, thermal behaviour, and voltage response, engineers can predict how the cell will perform under various conditions. This includes assessing the impact of temperature on battery performance and ensuring that the cell can deliver the required thrust and energy throughout the flight envelope. For instance, simulating different flight scenarios allows for accurate predictions of usable energy and helps in making informed go/no-go decisions. This approach not only reduces the risk of mid-air failures but also enhances operator confidence in the drone's readiness for missions. By leveraging cell-specific data, teams can optimise battery thermal management and improve overall UAV powertrain efficiency.

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