Lishen 2170LH Drones Weight v power trade off in pack design - how to pick the right balance.
Explore the Lishen 2170LH cell for drones, optimising weight and power for enhanced performance in UAV applications. Discover its capabilities.
Value Propositions
Cylindrical 21700 form factor for optimal integration in UAV designs.
Nominal capacity of 10.8 Wh and 3.0 Ah, ideal for drone applications.
Volumetric energy density of 403 Wh/l, top-quartile vs median of 542 Wh/l.
Gravimetric power density of 2282 W/kg, among the highest in database.
Maximum continuous discharge of 45 A, top-quartile vs median of 30 A.
About the Cell
The Lishen 2170LH cell features a cylindrical 21700 form factor, providing a nominal capacity of 10.8 Wh and 3.0 Ah. With a volumetric energy density of 403 Wh/l, it ranks in the top-quartile compared to the database median of 542 Wh/l. The gravimetric energy density is 152 Wh/kg, which is around the median of 210 Wh/kg. Additionally, the cell boasts a volumetric power density of 6049 W/l, which is among the highest in the database, and a gravimetric power density of 2282 W/kg, also among the highest. The maximum continuous discharge current is 45 A, which is in the top-quartile compared to the median of 30 A, making it suitable for demanding UAV applications.
Application Challenges
In the realm of drones, the challenge of balancing weight and power in battery pack design is critical. The Lishen 2170LH cell addresses this challenge effectively. Drones require batteries that not only provide sufficient energy for extended flight times but also maintain a lightweight profile to enhance manoeuvrability and efficiency. The weight versus power trade-off is essential for optimising UAV performance, especially in applications such as long endurance missions, heavy lift operations, and extreme environment adaptability. Selecting the right battery cell is crucial for achieving the desired flight time and payload capacity, ensuring that drones can perform their tasks efficiently without overheating or compromising safety.
Why this Cell
The Lishen 2170LH cell is an excellent choice for drone applications due to its impressive specifications. With a maximum continuous discharge of 45 A, it is in the top-quartile compared to the median of 30 A, allowing for high power demands during flight. The volumetric energy density of 403 Wh/l is also noteworthy, as it ranks in the top-quartile against the median of 542 Wh/l, providing a compact solution for energy storage. This cell's combination of high energy and power densities makes it ideal for UAV battery optimisation, ensuring that drones can achieve longer flight times while carrying heavier payloads. The lightweight design of the cell further supports the need for custom UAV battery packs that do not compromise on performance.
How Model-Based Design Helps
Simulation and model-based design play a pivotal role in optimising battery selection for drones. By modelling load profiles, thermal behaviour, and voltage response, engineers can accurately predict how the Lishen 2170LH cell will perform under various operational conditions. This approach allows for the assessment of thermal rise and usable energy, ensuring that the selected cell can handle the demands of specific missions without overheating or failing. For instance, simulating different flight scenarios can help determine the optimal discharge rates and energy consumption patterns, enabling designers to make informed decisions that enhance drone performance. This predictive capability is vital for ensuring reliability and efficiency in UAV operations, particularly in challenging environments where mission success is critical.
