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

Explore the Tenpower 50XG cell for UAV applications, addressing weight vs power trade-offs for optimal drone performance and endurance.

Value Propositions

  • Cylindrical 21700 form factor for compact design.

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

  • Top-quartile volumetric energy density of 707 Wh/l for efficient space usage.

  • Maximum continuous discharge of 45.0 A, ensuring high power delivery.

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

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About the Cell

The Tenpower 50XG cell is designed in a cylindrical 21700 format, providing a nominal capacity of 18.0 Wh and 5.0 Ah. With a volumetric energy density of 707 Wh/l, it stands out in its class, offering efficient space utilisation. The cell also boasts a maximum continuous discharge rate of 45.0 A, ensuring that it can deliver the necessary power for demanding applications. Its gravimetric energy density of 257 Wh/kg positions it well among competitors, providing a balance of weight and energy output. Compared to the database median, the volumetric energy density is in the top-quartile, being +30% higher than the median of 541.67 Wh/l, making it an excellent choice for UAV applications where space and weight are critical factors.

Application Challenges

In the EVTOL sector, the weight vs power trade-off in pack design is crucial. Drones require batteries that not only provide sufficient energy for long flights but also maintain a lightweight profile to enhance overall performance. The challenge lies in selecting the right battery cells that can deliver high energy density while ensuring safety and thermal management. The Tenpower 50XG cell addresses these needs with its impressive specifications, allowing for the design of lightweight drone battery packs that do not compromise on performance. The ability to optimise battery weight directly impacts flight time and mission endurance, making it essential for UAV manufacturers to choose cells that excel in both energy and power delivery.

Why this Cell

The Tenpower 50XG cell is particularly suited for UAV applications due to its high volumetric energy density of 707 Wh/l, which is +30% compared to the database median. This allows for more energy storage in a compact form, essential for long endurance drone batteries. Additionally, its maximum continuous discharge rate of 45.0 A ensures that it can handle the power demands of various UAV operations, placing it in the top-quartile compared to the median of 30 A. The combination of high gravimetric power density at 2,314 W/kg further supports its use in lightweight drone battery packs, making it an ideal choice for manufacturers looking to optimise performance without adding unnecessary weight.

How Model-Based Design Helps

Simulation and model-based design play a critical role in selecting the right battery cells for UAV applications. By modelling load profiles, thermal behaviour, and voltage response, engineers can predict how the Tenpower 50XG cell will perform under various conditions. This approach allows for the assessment of energy delivery and thermal management, ensuring that the selected cell can meet the demands of specific missions. For instance, simulating the thermal rise during high discharge scenarios helps in identifying potential overheating issues, enabling the design of safe battery packs for UAVs. Furthermore, accurate predictions of state of charge (SoC) can prevent mid-air failures, enhancing mission reliability. By utilising these advanced design techniques, manufacturers can confidently choose the best cells for their UAV packs, ultimately improving flight time and operational efficiency.

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