Jiangsu Sunpower 30T Safety and risk management - particularly around overheating and thermal runaway during flight.
Explore the Jiangsu Sunpower 30T cell for UAV applications, addressing safety and thermal challenges in drone battery design.
Value Propositions
Cylindrical 18650 form factor for compact design.
Nominal capacity of 10.8 Wh and 3.0 Ah for reliable performance.
Top-quartile volumetric energy density of 615 Wh/l for extended flight times.
Gravimetric power density of 2,273 W/kg, ideal for high discharge applications.
Maximum continuous discharge of 30 A supports demanding UAV operations.
About the Cell
The Jiangsu Sunpower 30T cell features a cylindrical 18650 form factor, providing a nominal capacity of 10.8 Wh and 3.0 Ah. With a volumetric energy density of 615 Wh/l, it ranks in the top-quartile compared to the database median of 541.67 Wh/l, making it suitable for long endurance drone batteries. The gravimetric energy density of 227.368 Wh/kg is also competitive, being around the median of 209.39 Wh/kg. The cell's volumetric power density of 6,153.85 W/l is among the highest in the database, significantly enhancing UAV battery pack design. Additionally, the maximum continuous discharge rate of 30 A positions it well for high energy density drone batteries, ensuring reliable performance under demanding conditions.
Application Challenges
In the context of EVTOL applications, safety and risk management are paramount, particularly concerning overheating and thermal runaway during flight. The Jiangsu Sunpower 30T cell's high energy density is crucial for extending drone flight times, which is essential for mission success. In scenarios where drones operate in extreme environments, the ability to manage thermal performance becomes critical. The cell's design must mitigate risks associated with high discharge rates and ensure safe operation under varying load conditions. Addressing these challenges is vital for improving UAV mission endurance and preventing battery overheating, which can lead to catastrophic failures.
Why this Cell
The Jiangsu Sunpower 30T cell is an excellent choice for UAV applications due to its impressive metrics. With a maximum continuous discharge of 30 A, it is positioned in the top-quartile compared to the database median of 30 A, ensuring it can handle demanding operational profiles. The cell's volumetric energy density of 615 Wh/l, which is +13% vs the median, allows for lightweight drone battery packs that do not compromise on performance. Furthermore, its gravimetric power density of 2,273 W/kg is significant for applications requiring high discharge rates, making it a reliable option for custom UAV battery packs.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the selection of the Jiangsu Sunpower 30T cell for UAV applications. By modelling load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions, including high discharge rates and extreme temperatures. This approach allows for accurate predictions of voltage sag and usable energy, which are critical for ensuring mission success. For instance, simulating thermal rise during operation helps identify potential overheating issues, enabling the selection of cells that maintain safe operating temperatures. This predictive capability reduces the risk of thermal runaway and enhances overall battery safety, ensuring that the selected cell meets the rigorous demands of EVTOL applications.
