Ampace 21700A Drone Battery for Safety and Risk Management - Overheating and Thermal Runaway Challenges
Discover the Ampace 21700A drone battery, designed for safety and risk management, optimising performance while preventing overheating during flight.
Value Propositions
Cylindrical 21700 form factor for versatile applications.
Nominal capacity of 14.8 Wh (4.0 Ah) for extended flight times.
Top-quartile power density of 2,378.57 W/kg for high discharge rates.
Volumetric energy density of 589 Wh/l, ideal for compact designs.
Maximum continuous discharge of 45 A, ensuring reliable performance.
About the Cell
The Ampace 21700A battery features a cylindrical 21700 form factor, providing a nominal capacity of 14.8 Wh (4.0 Ah). With a volumetric energy density of 589 Wh/l, it is designed for high energy applications, making it suitable for drone use. The gravimetric energy density stands at 211 Wh/kg, which is around the median for similar cells. The battery also boasts a volumetric power density of 6,628 W/l, placing it among the highest in the database, and a gravimetric power density of 2,378 W/kg, which is top-quartile compared to the median of 750 W/kg. This combination of energy and power densities ensures that the Ampace 21700A can deliver the performance needed for demanding drone applications.
Application Challenges
In the context of drones, safety and risk management are paramount, particularly concerning overheating and thermal runaway during flight. Drones operate in various environments, often requiring long endurance capabilities. The Ampace 21700A battery's high energy density is crucial for extending flight times, while its robust design helps mitigate risks associated with thermal management. The challenge lies in ensuring that the battery can sustain high discharge rates without overheating, which is critical for maintaining operational safety and reliability.
Why this Cell
The Ampace 21700A battery is specifically engineered for drone applications, addressing the challenges of safety and risk management. With a maximum continuous discharge of 45 A, it is positioned in the top-quartile compared to the median of 30 A in the database, ensuring that it can handle demanding power requirements. The battery's volumetric energy density of 589 Wh/l is significantly higher than the median of 541 Wh/l, allowing for lightweight drone battery packs that do not compromise on performance. This combination of features makes the Ampace 21700A an ideal choice for UAV battery pack design, optimising both energy efficiency and safety.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in the selection and optimisation of the Ampace 21700A battery for drone applications. By simulating load profiles, thermal behaviour, and voltage response under various conditions, engineers can predict how the battery will perform in real-world scenarios. This approach allows for accurate assessments of thermal rise and usable energy, ensuring that the selected battery can meet the demands of specific missions. For instance, modelling can help identify the optimal charge and discharge rates, preventing overheating and ensuring that the battery operates within safe limits. This predictive capability is essential for enhancing UAV performance and reliability, particularly in critical applications where safety is a concern.
