TerraE 25P4 Drones Weight v power trade off in pack design - how to pick the right balance.
Explore the TerraE 25P4 cell for drones, optimising weight and power for enhanced performance in UAV battery pack design.
Value Propositions
Cylindrical 18650 form factor for versatile applications.
Nominal capacity of 9.0 Wh and 2.5 Ah for reliable energy supply.
Top-quartile volumetric power density of 5,977 W/l for high performance.
Gravimetric energy density of 191 Wh/kg, supporting lightweight designs.
Maximum continuous discharge of 30 A, ideal for demanding UAV applications.
About the Cell
The TerraE 25P4 cell features a cylindrical 18650 form factor, providing a nominal capacity of 9.0 Wh and 2.5 Ah. With a volumetric energy density of 498 Wh/l, it stands out in the market, being around the median compared to other cells. Its gravimetric energy density of 191 Wh/kg is also competitive, ensuring that the cell is lightweight while delivering substantial energy. The cell's volumetric power density is an impressive 5,977 W/l, placing it in the top-quartile of the database, which enhances its suitability for high-demand applications such as drones. Additionally, the maximum continuous discharge current of 30 A allows for robust performance under load, making it a reliable choice for UAV battery pack design. Overall, the TerraE 25P4 cell is engineered for optimal performance in drone applications, balancing weight and power effectively.
Application Challenges
In the realm of drones, the challenge of balancing weight and power in battery pack design is critical. The TerraE 25P4 cell addresses this challenge by providing a high energy density while maintaining a lightweight profile. This is essential for applications requiring long endurance, such as industrial inspections or heavy-lift missions. The ability to optimise the weight of the battery pack directly impacts the flight time and overall efficiency of the UAV. Furthermore, as drones operate in various environments, ensuring that the battery can withstand thermal fluctuations and deliver consistent power is paramount. The TerraE 25P4 cell's specifications make it a strong candidate for addressing these challenges, ensuring that UAVs can perform reliably and efficiently.
Why this Cell
The TerraE 25P4 cell is particularly suited for drone applications due to its impressive specifications. With a maximum continuous discharge of 30 A, it is positioned in the top-quartile compared to the database median of 30 A, ensuring that it can handle demanding power requirements. Its volumetric energy density of 498 Wh/l is around the median, making it a solid choice for applications where space is at a premium. The high volumetric power density of 5,977 W/l allows for quick bursts of power, which is essential for UAVs during takeoff and manoeuvring. This combination of high energy and power densities, along with its lightweight design, makes the TerraE 25P4 cell an optimal choice for UAV battery optimisation, 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 the performance of the TerraE 25P4 cell for drone applications. By modelling load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions, such as high discharge rates and temperature fluctuations. This allows for accurate predictions of usable energy and voltage response, which are critical for ensuring that the drone can complete its mission without mid-air failures. For instance, simulations can help identify the optimal charge and discharge rates, ensuring that the battery operates within safe limits while delivering the required power. Additionally, modelling can assist in predicting the state of charge (SoC) accurately, which is vital for mission planning and execution. Overall, simulation enhances the design process, enabling the selection of the best cells for UAVs and ensuring reliable performance in the field.
