Lishen 2170LA EVTOL Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.
Explore the Lishen 2170LA cell for EVTOL applications, designed to maximise flight time while addressing core technical challenges in drone battery design.
Value Propositions
Cylindrical 21700 form factor for efficient space utilisation.
Nominal capacity of 14.4 Wh and 4.0 Ah for reliable energy delivery.
Top-quartile volumetric energy density of 566 Wh/l for compact designs.
Maximum continuous discharge of 45 A, ensuring robust performance under load.
Gravimetric power density of 2418 W/kg, ideal for high energy demands.
About the Cell
The Lishen 2170LA cell features a cylindrical 21700 form factor, optimised for high energy density applications. With a nominal capacity of 14.4 Wh and 4.0 Ah, it delivers reliable performance for UAVs. The cell boasts a volumetric energy density of 566 Wh/l, placing it in the top-quartile compared to the median of 542 Wh/l in the database. Its gravimetric energy density of 215 Wh/kg is around the median, ensuring a lightweight solution for drone applications. Additionally, the cell's volumetric power density of 6370 W/l is among the highest in the database, providing exceptional power output for demanding tasks. The maximum continuous discharge rate of 45 A allows for high current draws, making it suitable for various UAV missions.
Application Challenges
In EVTOL applications, maximising flight time is crucial. The Lishen 2170LA cell is designed to optimise cell selection, duty cycle, and flight speed to achieve this goal. The ability to deliver high energy density is essential for extending flight duration, especially in demanding environments. Current draw and energy output directly impact mission success, making the selection of the right battery cell critical. The Lishen 2170LA's specifications ensure that it can meet the rigorous demands of UAV operations, providing reliable performance under various conditions. The challenge lies in balancing energy capacity with weight and thermal management to prevent overheating, ensuring safe and efficient flights.
Why this Cell
The Lishen 2170LA cell is an excellent choice for EVTOL applications due to its impressive specifications. With a maximum continuous discharge of 45 A, it is positioned in the top-quartile compared to the database median of 30 A, ensuring it can handle high current demands during flight. The cell's volumetric energy density of 566 Wh/l is also noteworthy, being significantly higher than the median of 542 Wh/l, which translates to more energy stored in a compact size. This is vital for maximising flight time while maintaining a lightweight design. The gravimetric power density of 2418 W/kg further supports its suitability for high energy demands, allowing UAVs to perform efficiently without compromising on performance.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the Lishen 2170LA cell for EVTOL applications. By modelling load profiles, engineers can predict how the cell will behave under various conditions, including thermal rise and voltage sag. This predictive capability allows for the selection of the most suitable cell for specific missions, ensuring that the UAV can deliver the required thrust and energy throughout its flight. Furthermore, simulations can help identify potential overheating issues, enabling proactive thermal management strategies to be implemented. This approach not only enhances the reliability of the UAV but also improves overall mission success rates by ensuring that the battery operates within safe parameters.
