Thermal analysis of lithium ion batteries using computational fluid dynamics

Li-ion batteries, crucial for our renewable energy future, are demanding effective thermal management (BTM). Their high energy density fuels EVs and electronics, but as green energy accelerates, heat dissipation becomes a challenge. Our research focused on understanding this issue in LiFePO4 batteries. Using simulations and thermal camera data, we analyzed heat generation and temperature during charging and discharging. Faster charging, as expected, generated the most heat (62 W at 3C discharge). We encountered discrepancies due to model limitations, but the research highlights the critical role of BTM in optimizing battery performance and longevity. Moving forward, we aim to refine our methods, explore passive cooling with phase change materials, and deepen our understanding of these vital energy storage components, fueling a sustainable future powered by efficient, heat-managed Li-ion batteries.