Lishen 2170LH Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.
Explore the Lishen 2170LH cell designed for EVTOL applications, optimising flight time and performance while addressing key challenges in UAV battery design.
Value Propositions
Cylindrical 21700 form factor with a nominal capacity of 10.8 Wh (3.0 Ah).
Volumetric energy density of 403 Wh/l, placing it in the top-quartile vs median.
Gravimetric energy density of 152 Wh/kg, around median compared to industry standards.
Maximum continuous discharge of 45 A, among the highest in the database.
Standard charge current of 3 A, ensuring efficient energy replenishment.
About the Cell
The Lishen 2170LH cell is a cylindrical 21700 lithium-ion battery designed specifically for EVTOL applications. With a nominal capacity of 10.8 Wh and a charge capacity of 3.0 Ah, it provides a robust solution for UAV battery pack design. The cell boasts a volumetric energy density of 403 Wh/l, which is in the top-quartile compared to the median of 541 Wh/l in the database. Additionally, it has a gravimetric energy density of 152 Wh/kg, which is around the median of 210 Wh/kg. The maximum continuous discharge rate of 45 A positions it among the highest in the database, making it suitable for high energy density drone batteries. The standard charge current of 3 A allows for efficient charging, while the maximum continuous charge rate of 30 A ensures that the cell can handle demanding applications without overheating. This cell is ideal for lightweight drone battery packs and custom UAV battery packs, providing the necessary power and efficiency for extended flight times.
Application Challenges
In the EVTOL sector, maximising flight time is crucial. The Lishen 2170LH cell addresses this challenge by optimising cell selection, duty cycle, and flight speed. The ability to extend drone flight time is essential for applications such as industrial inspections, where every minute of airtime counts. High energy density is vital for UAV battery optimisation, allowing drones to carry heavier payloads without compromising on performance. Additionally, the thermal management of the battery is critical to prevent overheating during extended missions. The Lishen 2170LH's specifications ensure that it meets the demands of long endurance drone batteries, providing reliable performance in various environmental conditions. By utilising this cell, operators can improve UAV mission endurance and ensure safe battery packs for UAVs, ultimately enhancing operational efficiency.
Why this Cell
The Lishen 2170LH cell is an excellent choice for EVTOL applications due to its impressive specifications. With a maximum continuous discharge rate of 45 A, it is among the highest in the database, allowing for high discharge rate UAV batteries that can handle demanding tasks. The volumetric energy density of 403 Wh/l places it in the top-quartile, ensuring that drones can achieve longer flight times without adding excessive weight. This is particularly important in UAV battery pack design, where every gram counts. The standard charge current of 3 A and maximum continuous charge rate of 30 A provide flexibility in charging options, making it easier to integrate into various drone designs. Overall, the Lishen 2170LH cell is tailored for those looking to optimise their UAV battery performance while addressing the challenges of flight time and thermal management.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in selecting the right battery cell for EVTOL applications. By modelling load profiles, thermal behaviour, and voltage response, engineers can predict how the Lishen 2170LH cell will perform under different conditions. This allows for accurate predictions of usable energy and helps prevent issues such as overheating during extended flights. For instance, simulating the thermal rise and internal temperature of the cell under various duty cycles enables the selection of the best-performing cell for specific mission profiles. This approach not only reduces the risk of mid-air failures but also enhances the overall reliability of the drone. By utilising cell-specific data, operators can make informed decisions about battery selection, ensuring that they choose the best cells for UAV packs that meet their operational needs.
