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TerraE 32P Drones Weight v power trade off in pack design - how to pick the right balance.

Explore the TerraE 32P cell for drones, optimising weight and power for enhanced performance in UAV applications. Discover its advantages today.

Value Propositions

  • Cylindrical 18650 form factor for versatile applications.

  • Nominal capacity of 11.1 Wh and 3.0 Ah for reliable energy supply.

  • Top-quartile volumetric energy density of 630 Wh/l for compact designs.

  • Maximum continuous discharge of 30 A, ideal for high-performance UAVs.

  • Gravimetric power density of 2,313 W/kg supports demanding flight profiles.

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About the Cell

The TerraE 32P cell is designed in a cylindrical 18650 form factor, offering a nominal capacity of 11.1 Wh and 3.0 Ah. With a volumetric energy density of 630 Wh/l, it ranks in the top-quartile compared to the median of 542 Wh/l in the database. The gravimetric energy density is 231.25 Wh/kg, which is around the median of 210 Wh/kg. The cell's maximum continuous discharge capability of 30 A positions it among the highest in the database, allowing for robust performance in demanding applications. Additionally, the volumetric power density of 6,296 W/l is significantly above the median of 2,029 W/l, making it suitable for high-energy applications. This combination of features makes the 32P an excellent choice for UAV battery pack design, where weight and power are critical considerations.

Application Challenges

In the realm of drones, the challenge of balancing weight and power is paramount. The application of the TerraE 32P cell directly addresses the need for lightweight drone battery packs that do not compromise on energy output. In UAV battery pack design, achieving the right balance between energy density and weight is crucial for extending flight times and enhancing overall mission efficiency. The 32P's high energy density allows for longer endurance, which is essential for applications such as industrial inspections and surveying. Furthermore, the ability to manage thermal performance is vital to prevent overheating during high discharge scenarios, ensuring safe operation in various environments. This cell's specifications support the design of custom UAV battery packs tailored to specific mission profiles, optimising performance while maintaining safety and reliability.

Why this Cell

The TerraE 32P cell is an ideal choice for drone applications due to its impressive specifications. With a maximum continuous discharge of 30 A, it is positioned among the highest in the database, ensuring that it can handle the demands of high-performance UAVs. The cell's volumetric energy density of 630 Wh/l is top-quartile compared to the median of 542 Wh/l, making it a strong candidate for applications requiring compact battery solutions. Additionally, its gravimetric power density of 2,313 W/kg supports high discharge rates, which is crucial for maintaining drone powertrain efficiency. This combination of high energy and power density allows for effective UAV battery optimisation, ensuring that the 32P meets the rigorous demands of drone battery design while facilitating longer flight times and improved mission endurance.

How Model-Based Design Helps

Simulation and model-based design play a critical role in optimising the performance of the TerraE 32P cell for drone applications. By modelling load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions, including high discharge rates and temperature fluctuations. This approach allows for accurate predictions of voltage sag and usable energy, which are essential for ensuring that the drone can complete its mission without mid-air failures. For example, simulating different flight scenarios helps in understanding the thermal rise associated with continuous current draw, enabling the selection of the best cell for specific mission profiles. This data-driven approach reduces the risk of costly trial-and-error testing, ensuring that the right cell is chosen from the outset, thereby enhancing operational efficiency and reliability in UAV applications.

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