Jiangsu Sunpower 30T 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 Jiangsu Sunpower 30T cell for fast charging in EVTOL applications, optimising performance while preventing overheating and degradation.
Value Propositions
Cylindrical 18650 form factor for efficient design.
Nominal capacity of 10.8 Wh and 3.0 Ah for reliable performance.
Top-quartile volumetric energy density of 615 Wh/l for compact designs.
Maximum continuous discharge of 30 A, ensuring robust power delivery.
Gravimetric power density of 2,273 W/kg, ideal for high-performance UAVs.
About the Cell
The Jiangsu Sunpower 30T cell features a cylindrical 18650 form factor, with a nominal capacity of 10.8 Wh and 3.0 Ah. This cell achieves a volumetric energy density of 615 Wh/l, placing it in the top-quartile compared to the database median of 541.67 Wh/l, which is essential for applications requiring compact battery solutions. Additionally, the gravimetric energy density of 227.368 Wh/kg is around the median of 209.39 Wh/kg, providing a balance of weight and energy storage. The cell's maximum continuous discharge rate of 30 A is also noteworthy, as it exceeds the database median of 30 A, ensuring that it can handle high power demands effectively. Furthermore, the volumetric power density of 6,153.85 W/l is among the highest in the database, significantly surpassing the median of 2,029.31 W/l, making it suitable for applications that require rapid energy delivery.
Application Challenges
In EVTOL applications, fast charging of batteries 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 battery performance and lead to safety hazards. The Jiangsu Sunpower 30T cell's high energy density and robust discharge capabilities make it an ideal candidate for addressing these challenges. The ability to manage thermal performance during rapid charging is essential, as overheating can lead to catastrophic failures. Therefore, selecting the right cell is crucial for maintaining safety and performance in demanding environments.
Why this Cell
The Jiangsu Sunpower 30T cell is particularly suited for fast charging 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, allowing for efficient energy delivery during critical operations. Its volumetric energy density of 615 Wh/l, which is +13% vs the median, enables compact battery designs that do not compromise on performance. Additionally, the high gravimetric power density of 2,273 W/kg ensures that the cell can support high discharge rates, making it ideal for UAV applications where weight and power are paramount. This combination of features allows for effective thermal management and enhances the overall safety of the battery system.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising battery performance for EVTOL applications. By modelling load profiles, thermal rise, voltage sag, and usable energy, engineers can accurately predict how the Jiangsu Sunpower 30T cell will perform under various conditions. This approach allows for the identification of potential overheating issues during fast charging and helps in selecting the most suitable cells for specific mission profiles. For instance, simulations can reveal how the cell behaves under high discharge rates, enabling designers to make informed decisions that enhance safety and efficiency. By leveraging these insights, manufacturers can avoid costly trial-and-error testing and ensure that the selected cells meet the rigorous demands of UAV operations.
