Ampace JP40 Drones 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 Ampace JP40 cell for drones, designed for fast charging without overheating, ensuring safety and efficiency in UAV applications.
Value Propositions
Cylindrical 21700 form factor for compact design.
Nominal capacity of 14.8 Wh and 4.0 Ah for reliable performance.
Top-quartile volumetric power density of 8,930 W/l for high current demands.
Gravimetric energy density of 214 Wh/kg, ensuring lightweight solutions.
Maximum continuous discharge of 60 A, ideal for demanding UAV applications.
About the Cell
The Ampace JP40 cell features a cylindrical 21700 form factor, providing a nominal capacity of 14.8 Wh and 4.0 Ah. With a volumetric energy density of 595 Wh/l, it stands out in the market, being among the highest compared to the database median of 542 Wh/l. Its gravimetric energy density of 214 Wh/kg is around the median, ensuring a lightweight solution for drone applications. The cell also boasts a volumetric power density of 8,930 W/l, which is top-quartile compared to the median of 2,029 W/l, making it suitable for high discharge applications. The maximum continuous discharge rate of 60 A positions it well for demanding UAV tasks, while the maximum continuous charge rate of 8 A supports fast charging capabilities, crucial for drone operations.
Application Challenges
In the realm of drones, fast charging of batteries presents significant challenges. The primary concern is to charge the battery quickly without overheating the cells or causing lithium plating, which could degrade the battery or lead to safety hazards. The Ampace JP40 cell addresses these challenges with its high maximum continuous charge rate of 8 A, allowing for efficient charging while maintaining thermal stability. This is essential for applications requiring rapid turnaround times, such as in commercial drone operations. Additionally, the cell's design ensures that it can handle the high energy demands of UAVs, which often operate in extreme environments where battery performance is critical.
Why this Cell
The Ampace JP40 cell is specifically designed to meet the rigorous demands of drone applications, particularly in fast charging scenarios. With a maximum continuous discharge rate of 60 A, it is well-suited for high energy draw situations, making it ideal for UAVs that require quick bursts of power. The cell's volumetric power density of 8,930 W/l is top-quartile compared to the median of 2,029 W/l, ensuring that it can deliver power efficiently without overheating. This capability is crucial for preventing thermal runaway and ensuring safe operation during intense missions. Furthermore, its gravimetric energy density of 214 Wh/kg helps maintain a lightweight profile, which is essential for extending drone flight times and improving overall mission endurance.
How Model-Based Design Helps
Simulation and model-based design play a pivotal role in optimising the performance of the Ampace JP40 cell for drone applications. By modelling load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions, including rapid charging and high discharge rates. This predictive capability allows for the selection of the best cell for specific mission profiles, ensuring that the drone can operate efficiently without risking battery failure. For instance, simulations can help identify the optimal charging parameters to prevent overheating, thereby enhancing the safety and reliability of the UAV. Additionally, understanding voltage sag and usable energy through simulation aids in accurate battery state-of-charge (SoC) predictions, which are critical for mission planning and execution.
