Molicel P45B Mission feasibility assessment - asses what missions or use cases are possible or not using a go/no-go decision using simulation.
Explore the Molicel P45B for mission feasibility assessment in EVTOL applications, optimising drone battery performance and endurance.
Value Propositions
Cylindrical 21700 form factor with a nominal capacity of 16.2 Wh.
Maximum continuous discharge of 45.0 A, top-quartile vs median 30 A.
Gravimetric energy density of 231.429 Wh/kg, around median vs 210 Wh/kg.
Volumetric energy density of 633.06 Wh/l, +17% vs median 541.667 Wh/l.
Standard charge current of 4.5 A, around median 2 A.
About the Cell
The Molicel P45B is a cylindrical 21700 cell designed for high-performance applications. With a nominal capacity of 16.2 Wh and a nominal charge capacity of 4.5 Ah, it is engineered to meet the demanding requirements of EVTOL applications. The cell boasts a volumetric energy density of 633 Wh/l, which is +17% compared to the median of 541.667 Wh/l in the database. Additionally, its gravimetric energy density stands at 231.429 Wh/kg, which is around the median of 210 Wh/kg. The maximum continuous discharge rate of 45 A places it in the top-quartile compared to the median of 30 A, making it suitable for high energy density drone batteries. Furthermore, the standard charge current of 4.5 A is also around the median of 2 A, ensuring efficient charging capabilities.
Application Challenges
In the context of EVTOL and mission feasibility assessment, the Molicel P45B cell addresses critical challenges. The ability to assess what missions or use cases are possible using simulation is paramount. High energy density is essential for extending drone flight times, particularly in demanding environments. The Molicel P45B's specifications allow for effective simulation of various mission profiles, ensuring that operators can make informed go/no-go decisions. The lightweight design of the cell contributes to overall UAV performance, allowing for longer missions without compromising payload capacity. Additionally, the high discharge rates are crucial for applications requiring immediate thrust, making the P45B an ideal choice for UAV battery optimization.
Why this Cell
The Molicel P45B is particularly suited for EVTOL applications due to its impressive specifications. With a maximum continuous discharge of 45 A, it is in the top-quartile compared to the median of 30 A, ensuring that it can handle high current demands during critical phases of flight. The cell's volumetric energy density of 633 Wh/l is +17% above the median, providing ample energy storage in a compact form factor. This is vital for mission feasibility assessments, where every ounce of weight and every watt of energy counts. The gravimetric energy density of 231.429 Wh/kg, around the median, ensures that the cell remains lightweight while still delivering high performance. These characteristics make the Molicel P45B an excellent choice for custom UAV battery packs that require both efficiency and reliability.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the Molicel P45B in EVTOL applications. By modelling load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions. This includes assessing voltage sag, thermal rise, and usable energy throughout the flight envelope. Such simulations enable the selection of the most suitable cells for specific missions, ensuring that operators can confidently make go/no-go decisions. For instance, understanding the thermal dynamics of the P45B helps prevent overheating, a common challenge in high discharge rate UAV batteries. Additionally, accurate predictions of state of charge (SoC) allow for better planning and execution of missions, ultimately improving UAV mission endurance.
