EVE Energy 30PL 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.
Explore the EVE Energy 30PL cell for fast charging applications, ensuring safety and efficiency in UAV battery design and performance.
Value Propositions
Cylindrical 18650 form factor for versatile applications.
Nominal capacity of 10.95 Wh and 3.0 Ah for reliable energy delivery.
Top-quartile power density (+58% vs median 750 W/kg) for brisk current draws.
Maximum continuous discharge of 60.0 A (3.0 C) for demanding applications.
Volumetric energy density of 628 Wh/l, significantly above median values.
About the Cell
The EVE Energy 30PL cell features a cylindrical 18650 form factor, providing a nominal capacity of 10.95 Wh and 3.0 Ah. With a volumetric energy density of 628 Wh/l, it stands out in the market, being significantly above the median of 542 Wh/l. The gravimetric energy density is 233 Wh/kg, which is also competitive compared to the median of 210 Wh/kg. The cell's volumetric power density is an impressive 12,557 W/l, placing it among the highest in the database, and the gravimetric power density reaches 4,660 W/kg, which is top-quartile compared to the median of 750 W/kg. This combination of energy and power densities makes the 30PL ideal for applications requiring rapid energy delivery and efficient thermal management.
Application Challenges
In the EVTOL sector, fast charging of batteries is critical to ensure operational efficiency and safety. The challenge lies in charging the battery quickly without overheating the cells or causing lithium plating, which can degrade the battery or lead to catastrophic failures. The EVE Energy 30PL cell, with its high maximum continuous charge of 9.0 A (3.0 C), addresses this challenge effectively. The ability to handle high charge rates while maintaining thermal stability is essential for UAV applications, where performance and safety are paramount. The cell's design allows for rapid energy replenishment, which is crucial for long endurance missions and quick turnaround times in commercial drone operations.
Why this Cell
The EVE Energy 30PL cell is specifically designed to meet the demands of fast charging in UAV applications. With a maximum continuous discharge of 60.0 A (3.0 C), it supports high energy demands during flight, making it suitable for heavy lift and long endurance missions. Its volumetric energy density of 628 Wh/l is significantly above the median, ensuring that drones can carry more energy without increasing weight. This is particularly important in EVTOL applications where every gram counts. Additionally, the cell's ability to manage thermal performance during rapid charging is critical in preventing overheating and ensuring safety, making it a reliable choice for UAV battery pack design.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the EVE Energy 30PL cell in UAV applications. By modelling load profiles and thermal behaviour, engineers can predict how the cell will perform under various charging and discharging conditions. This includes assessing heat generation during fast charging and understanding voltage sag under load. Such simulations enable the selection of the most suitable cells for specific missions, ensuring that the UAV can operate efficiently without risking battery failure. For instance, by simulating different charging scenarios, engineers can identify the optimal charge rate that balances speed and thermal management, thus enhancing the overall reliability of the drone's powertrain.
