Rechargeable Lithium Ion Battery Operation Model

Global Aerospace Corporation (GAC), in collaboration with NASA’s Jet Propulsion Laboratory (JPL), plans to develop a prototype, high-fidelity, first principle-based, comprehensive, and user-friendly software model to predict the long-term behavior of advanced rechargeable lithium batteries in aerospace applications. This Li-Ion battery operation model will 1) incorporate in one tool, for the first time, all the state-of-the-art first-principles Li-Ion cell physics and chemistry available; 2) be able to make reasonably accurate predictions of performance and life at both the cell and battery level for a variety of cell manufacturers, provided appropriate cell parameters are available; 3) facilitate the extension and advancement of the first-principles model because of the object-oriented nature of the code; and 4) be extremely user-friendly. In Phase II, we will extend the capability of the model developed in Phase I by incorporating additional cell and battery design and operational conditions that affect degradation and performance predictions. In Phase II we will validate the model using LEO-cycling cell and battery laboratory test data. Finally, we will demonstrate that the prototype battery operation model can predict the performance and life of batteries of a space mission.