Lishen 2170LA Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.
Discover the Lishen 2170LA cell for drones, optimising flight time and performance with high energy density and lightweight design.
Value Propositions
Cylindrical 21700 form factor for efficient space utilisation.
Nominal capacity of 14.4 Wh (4.0 Ah) for extended flight duration.
Top-quartile volumetric power density of 6,370 W/l, +64% vs median 2,029 W/l.
Gravimetric energy density of 215 Wh/kg, around median for lightweight applications.
Maximum continuous discharge of 45 A, top-quartile vs median 30 A.
About the Cell
The Lishen 2170LA cell features a cylindrical 21700 form factor, providing a nominal capacity of 14.4 Wh and 4.0 Ah. With a volumetric energy density of 566 Wh/l, it ranks among the highest in the database, significantly enhancing drone performance. The gravimetric energy density of 215 Wh/kg is around the median, making it suitable for lightweight drone applications. Additionally, the cell boasts a volumetric power density of 6,370 W/l, which is +64% higher than the median of 2,029 W/l, ensuring it can handle high power demands efficiently. The maximum continuous discharge rate of 45 A places it in the top-quartile compared to the median of 30 A, making it ideal for high-performance UAVs.
Application Challenges
In the aerospace sector, maximising flight time is critical. Drones must operate efficiently under varying conditions, necessitating optimal cell selection, duty cycles, and flight speeds. The Lishen 2170LA cell addresses these challenges by offering high energy density, which translates to longer operational periods. In scenarios where drones face extreme environments, the ability to maintain performance without overheating is paramount. The high discharge rate of 45 A ensures that the drone can perform demanding tasks without compromising safety or efficiency. Accurate battery state of charge (SoC) prediction is essential for mission planning, and the Lishen 2170LA supports this with its reliable performance metrics.
Why this Cell
The Lishen 2170LA cell is specifically designed for applications requiring maximised flight time. Its nominal capacity of 14.4 Wh and high volumetric energy density of 566 Wh/l make it an excellent choice for long endurance drone batteries. Compared to the database median, it offers a volumetric power density that is +64% higher, ensuring that drones can achieve optimal performance during critical missions. The lightweight design, combined with a maximum continuous discharge rate of 45 A, allows for efficient energy use while maintaining safety. This cell is ideal for UAV battery optimisation, enabling operators to extend mission endurance without the risk of overheating or performance loss.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the selection of the Lishen 2170LA cell for drone applications. By simulating load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions, including high discharge rates and temperature fluctuations. This modelling allows for accurate predictions of voltage sag and usable energy, ensuring that the selected cell meets the specific demands of the mission. For instance, by analysing the thermal rise during operation, designers can prevent overheating and ensure that the drone operates within safe limits. This approach not only enhances the reliability of the UAV but also reduces the need for costly trial-and-error testing, leading to more efficient design processes.
