Lishen 2170LH Drones Safety and risk management - particularly around overheating and thermal runaway during flight.
Explore the Lishen 2170LH cell for drones, designed for safety and risk management, ensuring optimal performance and thermal stability during flight.
Value Propositions
Cylindrical 21700 form factor for efficient space utilisation.
Nominal capacity of 10.8 Wh and 3.0 Ah for reliable energy supply.
Top-quartile volumetric power density of 6049 W/l for high performance.
Gravimetric energy density of 152 Wh/kg, suitable for lightweight applications.
Maximum continuous discharge of 45 A, ideal for demanding UAV operations.
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 is well-suited for drone applications where space is at a premium. The gravimetric energy density of 152 Wh/kg ensures that the cell remains lightweight, which is crucial for drone efficiency. Additionally, the cell boasts a volumetric power density of 6049 W/l, placing it in the top-quartile compared to the database median of 2029 W/l, making it an excellent choice for high-performance UAVs. The maximum continuous discharge rate of 45 A allows for robust power delivery during demanding flight conditions, ensuring that drones can operate effectively without overheating or risking thermal runaway.
Application Challenges
In the context of drones, safety and risk management are paramount, particularly concerning overheating and thermal runaway during flight. Drones often operate in challenging environments, where temperature fluctuations can significantly impact battery performance. The Lishen 2170LH cell's high energy density and robust discharge capabilities are critical in preventing overheating, which can lead to catastrophic failures. The ability to maintain performance under varying loads is essential for ensuring mission success, especially in applications requiring long endurance and reliability. As drone technology evolves, the need for advanced battery solutions that can withstand extreme conditions becomes increasingly important.
Why this Cell
The Lishen 2170LH cell is specifically designed to meet the rigorous demands of drone applications. With a maximum continuous discharge rate of 45 A, it is positioned in the top-quartile compared to the median of 30 A in the database, making it suitable for high discharge rate UAV batteries. Its volumetric energy density of 403 Wh/l ensures that drones can achieve extended flight times without compromising on weight. This cell's performance characteristics make it an ideal candidate for custom UAV battery packs, providing the necessary power and safety features required for modern drone operations. The lightweight design combined with high energy density allows for improved UAV mission endurance, addressing the critical pain point of extending drone flight time.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising battery selection for drones. By simulating load profiles and thermal behaviour, engineers can accurately predict how the Lishen 2170LH cell will perform under various conditions. This includes modelling heat generation and voltage sag, which are essential for understanding the cell's behaviour during flight. The ability to simulate different scenarios allows for informed decision-making when selecting cells for UAVs, ensuring that the chosen battery can handle the specific demands of each mission. This approach not only enhances safety by preventing overheating but also maximises the usable energy, leading to more efficient drone operations. By leveraging cell-specific data, designers can optimise battery thermal management, ultimately improving drone powertrain efficiency and reliability.
