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Tenpower 50XG Weight v power trade off in pack design - how to pick the right balance. Application

Explore the Tenpower 50XG cell for UAV applications, optimising weight and power for enhanced drone performance and endurance.

Value Propositions

  • Cylindrical 21700 form factor for efficient design.

  • Nominal capacity of 18.0 Wh and 5.0 Ah for reliable energy supply.

  • Top-quartile volumetric energy density of 707 Wh/l for compact designs.

  • Maximum continuous discharge of 45.0 A for high-performance applications.

  • Gravimetric power density of 2,314 W/kg, ideal for UAVs.

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About the Cell

The Tenpower 50XG cell features a cylindrical 21700 form factor, providing a nominal capacity of 18.0 Wh and 5.0 Ah. With a volumetric energy density of 707 Wh/l, it ranks in the top-quartile compared to the database median of 542 Wh/l, making it suitable for applications where space is at a premium. The gravimetric energy density of 257 Wh/kg is also noteworthy, being around the median of 210 Wh/kg, ensuring that the cell delivers a good balance of weight and energy. The maximum continuous discharge rate of 45.0 A places it in the top-quartile compared to the median of 30 A, allowing for high-performance applications that require significant power output. Additionally, the volumetric power density of 6,360 W/l is among the highest in the database, supporting rapid energy delivery for demanding UAV tasks.

Application Challenges

In the aerospace sector, the challenge of optimising weight versus power in UAV battery pack design is critical. The Tenpower 50XG cell addresses this challenge by providing high energy density while maintaining a lightweight profile. This balance is essential for applications such as long endurance drone batteries and heavy lift drone operations, where every gram counts. The ability to extend drone flight time while preventing overheating is paramount, particularly in extreme environments. The design must also consider thermal management to avoid battery failure during high discharge scenarios, ensuring that the UAV can perform reliably under various conditions.

Why this Cell

The Tenpower 50XG cell is an excellent choice for UAV applications due to its impressive specifications. With a maximum continuous discharge of 45.0 A, it supports high energy demands, making it suitable for drone battery design and UAV battery optimisation. The volumetric energy density of 707 Wh/l is significantly above the median, allowing for compact battery designs that do not compromise on performance. This cell's gravimetric power density of 2,314 W/kg ensures that it can deliver power efficiently, which is crucial for applications requiring rapid energy bursts. The combination of these metrics makes the 50XG an ideal candidate for custom UAV battery packs, where performance and weight are critical considerations.

How Model-Based Design Helps

Simulation and model-based design play a vital role in optimising the selection of the Tenpower 50XG cell for UAV applications. By modelling load profiles, engineers can predict how the cell will perform under various conditions, including thermal rise and voltage sag. This predictive capability allows for accurate assessments of usable energy, ensuring that the selected cell meets the specific demands of the mission. For instance, simulations can help determine the optimal discharge rates and thermal management strategies, preventing overheating and ensuring safe operation during high-demand scenarios. This approach not only enhances the reliability of the UAV but also reduces the need for costly trial-and-error testing, streamlining the design process and improving overall efficiency.

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