BAK 45D Drones Mission feasibility assessment - asses what missions or use cases are possible or not using a go/no-go decision using simulation.
Explore the BAK 45D cell for drones, optimised for mission feasibility assessments, ensuring reliable performance and extended flight times.
Value Propositions
Cylindrical 21700 form factor for compact design.
Nominal capacity of 15.84 Wh and 4.4 Ah for efficient energy storage.
Top-quartile volumetric energy density of 619 Wh/l for lightweight applications.
Maximum continuous discharge of 60 A, ensuring high performance under load.
Gravimetric power density of 3130 W/kg, ideal for demanding drone missions.

About the Cell
The BAK 45D cell features a cylindrical 21700 form factor, providing a nominal capacity of 15.84 Wh (4.4 Ah). With a volumetric energy density of 619 Wh/l, it ranks in the top-quartile compared to the database median of 541.67 Wh/l, making it suitable for lightweight drone applications. The cell also boasts a maximum continuous discharge of 60 A, which is significantly higher than the median of 30 A, ensuring robust performance during demanding operations. Additionally, its gravimetric energy density of 229.57 Wh/kg is competitive, providing efficient energy storage for various drone missions. This cell is designed to meet the rigorous demands of UAV battery pack design, ensuring reliability and performance in critical applications.
Application Challenges
In the context of drones, mission feasibility assessment is crucial for determining which missions can be executed successfully. The BAK 45D cell's specifications directly influence the operational capabilities of UAVs. For instance, the high energy density allows for longer flight times, which is essential for missions requiring extended endurance. Additionally, the ability to handle high discharge rates is vital for applications involving rapid acceleration or heavy payloads. Accurate simulation of these parameters helps in making informed go/no-go decisions, ensuring that drones can operate effectively in various environments, including extreme conditions. The challenge lies in balancing energy capacity with weight, as lighter batteries contribute to improved flight efficiency and mission success.
Why this Cell
The BAK 45D cell is particularly suited for mission feasibility assessments due to its impressive specifications. With a maximum continuous discharge of 60 A, it is positioned in the top-quartile compared to the median of 30 A, allowing for high performance during critical missions. Its volumetric energy density of 619 Wh/l is also noteworthy, being 14% higher than the median, which translates to longer operational times for drones. This cell's design optimally supports UAV battery optimisation, ensuring that drones can achieve their mission objectives without compromising on safety or performance. The combination of high energy and power density makes the BAK 45D an excellent choice for various UAV applications.
How Model-Based Design Helps
Simulation and model-based design play a pivotal role in optimising the performance of the BAK 45D cell in drone applications. By accurately modelling load profiles, thermal behaviour, and voltage responses, engineers can predict how the cell will perform under various conditions. This approach allows for the identification of potential issues such as overheating or insufficient energy delivery during critical phases of flight. For instance, simulations can help determine the optimal charge and discharge rates, ensuring that the cell operates within safe limits while delivering the required power. This predictive capability is essential for making informed decisions about mission feasibility, enabling operators to assess whether a drone can complete its mission successfully under specific conditions.


