COSMX 95B0D0HD 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.
Explore the COSMX 95B0D0HD cell for fast charging in EVTOL applications, addressing overheating and lithium plating challenges effectively.
Value Propositions
Nominal capacity of 48.49 Wh and 13.0 Ah for reliable energy delivery.
Volumetric energy density of 357 Wh/l, ensuring compact design for UAV applications.
Gravimetric energy density of 180 Wh/kg, optimising weight for drone efficiency.
Maximum continuous discharge of 149.5 A, top-quartile vs median 30 A.
Volumetric power density of 4,105 W/l, +102% vs database median of 2,029 W/l.
About the Cell
The COSMX 95B0D0HD cell features a pouch form factor, with a nominal capacity of 48.49 Wh and 13.0 Ah. It boasts a volumetric energy density of 357 Wh/l and a gravimetric energy density of 180 Wh/kg. The cell's volumetric power density is 4,105 W/l, placing it among the highest in the database, while its gravimetric power density is 2,073 W/kg, also in the top quartile. These specifications make it suitable for demanding UAV applications, particularly in EVTOL designs where space and weight are critical.
Application Challenges
In EVTOL applications, fast charging of batteries is essential 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 and pose safety risks. High discharge rates are necessary to meet the energy demands of UAVs, especially during takeoff and rapid manoeuvres. The COSMX 95B0D0HD cell's maximum continuous discharge of 149.5 A supports these requirements, ensuring that the battery can deliver power when needed without compromising safety.
Why this Cell
The COSMX 95B0D0HD cell is ideal for fast charging in EVTOL applications due to its high energy density and robust discharge capabilities. With a maximum continuous discharge of 149.5 A, it is in the top quartile compared to the database median of 30 A, allowing for rapid energy delivery. Additionally, its volumetric energy density of 357 Wh/l ensures that the cell can be integrated into compact UAV designs without sacrificing performance. This combination of features addresses the critical challenge of overheating during fast charging, making it a reliable choice for drone battery optimisation.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising battery performance for EVTOL applications. By modelling load profiles, thermal rise, and voltage sag, engineers can predict how the COSMX 95B0D0HD cell will behave under various conditions. This allows for the selection of the most suitable cells based on real-world scenarios, ensuring that the battery can handle the demands of fast charging without overheating. Additionally, simulations can help identify the optimal charging rates and strategies to prevent lithium plating, thereby enhancing the safety and longevity of the battery.
