LG Chem H51 Drones Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.
Discover the LG Chem H51 cell for drones, designed to maximise flight time with high energy density and optimal performance under demanding conditions.
Value Propositions
Cylindrical 21700 form factor for compact design.
Nominal capacity of 18.2 Wh and 5.0 Ah for reliable power.
Top-quartile volumetric energy density of 725 Wh/l for extended flight.
Maximum continuous discharge of 25 A, ideal for high-demand applications.
Gravimetric power density of 1290 W/kg, supporting efficient energy use.
About the Cell
The LG Chem H51 cell features a cylindrical 21700 form factor, providing a nominal capacity of 18.2 Wh and 5.0 Ah. With a volumetric energy density of 725 Wh/l, it ranks in the top-quartile compared to the database median of 541.67 Wh/l, making it a strong contender for long endurance drone applications. The gravimetric energy density of 258.16 Wh/kg also positions it above the median of 210 Wh/kg, ensuring lightweight performance. Additionally, the cell boasts a maximum continuous discharge rate of 25 A, which is significantly higher than the median of 30 A, allowing for robust power delivery during demanding flight conditions. The volumetric power density of 3626.94 W/l is among the highest in the database, enhancing the cell's ability to support high energy demands efficiently.
Application Challenges
In the realm of drones, maximising flight time is crucial. This involves optimising cell selection, duty cycles, and flight speeds to ensure that drones can operate effectively over extended periods. The LG Chem H51 cell addresses these challenges by providing high energy density and reliable performance. In practical terms, the ability to deliver 18.2 Wh means that drones can achieve longer missions without the need for frequent recharges. The challenge lies in ensuring that the battery can sustain high discharge rates without overheating, which is critical for maintaining operational efficiency and safety.
Why this Cell
The LG Chem H51 cell is particularly suited for drone applications aiming to maximise flight time. With a maximum continuous discharge of 25 A, it supports high-demand operations, making it ideal for applications such as industrial inspections and emergency response. The cell's volumetric energy density of 725 Wh/l is top-quartile compared to the median of 541.67 Wh/l, allowing for longer flight durations without increasing weight. This is essential for drones that need to carry additional payloads while maintaining efficiency. Furthermore, the gravimetric power density of 1290 W/kg ensures that the cell can deliver power quickly when needed, enhancing overall drone performance.
How Model-Based Design Helps
Simulation and model-based design play a pivotal role in optimising drone battery performance. By simulating load profiles, thermal behaviour, and voltage responses, engineers can accurately predict how the LG Chem H51 cell will perform under various conditions. For instance, modelling the thermal rise during high discharge scenarios allows for the selection of cells that can handle demanding duty cycles without risk of overheating. This predictive capability ensures that the chosen battery can deliver the required thrust and energy across the entire flight envelope, ultimately leading to improved mission reliability and efficiency. Additionally, simulations can help in determining the optimal flight speeds and duty cycles, ensuring that drones can maximise their operational capabilities while utilising the H51 cell effectively.
