Lishen 2170LA Drones Fast charge of the batteries - how to charge the battery quickly without overheating the cells or causing lithium plating which could degrade the battery or cause it to catch fire.
Discover the Lishen 2170LA cell for drones, designed for fast charging without overheating or lithium plating, ensuring optimal performance and safety.
Value Propositions
Cylindrical 21700 form factor for efficient design.
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 for high-performance applications.
Gravimetric power density of 2418 W/kg, ideal for rapid energy demands.
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 in the top-quartile compared to the database median of 542 Wh/l, making it suitable for applications requiring compact energy solutions. The gravimetric energy density is 215 Wh/kg, which is around the median of 210 Wh/kg, ensuring a lightweight design. Additionally, the cell boasts a maximum continuous discharge rate of 45 A, which is significantly above the median of 30 A, allowing for high-performance applications. The volumetric power density of 6370 W/l is among the highest in the database, providing exceptional performance for demanding tasks.
Application Challenges
In the context of drones, fast charging is critical to ensure operational efficiency. The challenge lies in charging the battery quickly without overheating the cells or causing lithium plating, which can degrade the battery and lead to safety hazards. High discharge rates are often required for rapid take-offs and manoeuvres, making it essential to select cells that can handle these demands without compromising safety. The Lishen 2170LA cell's maximum continuous discharge of 45 A supports these requirements, allowing for quick energy delivery during critical flight phases. Furthermore, effective thermal management is vital to prevent overheating, ensuring that the battery remains safe and reliable under various operational conditions.
Why this Cell
The Lishen 2170LA cell is an excellent choice for drone applications due to its impressive specifications. With a maximum continuous discharge rate of 45 A, it is well-suited for high energy demands, ensuring that drones can perform optimally during critical missions. The cell's volumetric energy density of 566 Wh/l is top-quartile compared to the median of 542 Wh/l, allowing for compact battery designs that do not sacrifice performance. Additionally, the gravimetric power density of 2418 W/kg supports rapid energy delivery, making it ideal for applications that require quick bursts of power. This combination of features makes the Lishen 2170LA a reliable choice for UAV battery pack design, ensuring that drones can achieve longer flight times and improved mission endurance.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising battery performance for drones. By simulating load profiles, thermal rise, and voltage sag, engineers can accurately predict how the Lishen 2170LA cell will perform under various conditions. This allows for the selection of the most suitable cells based on real-world scenarios, ensuring that the chosen battery can handle the demands of fast charging without overheating. For instance, modelling the thermal behaviour of the cell during rapid discharge can help identify potential overheating issues before they occur, enabling proactive design adjustments. Furthermore, simulations can assist in predicting usable energy across different flight profiles, ensuring that operators can make informed decisions about mission feasibility and battery management.
