Role of Phase Change Materials in Examining the Discharge Behavior of Li-Ion Batteries Using ANSYS Fluent

The emergence of lithium-ion batteries (LIBs) presents a promising solution, yet they come with an inherent challenge of thermal overrun due to rapid charge–discharge cycles. An effective thermal management (TM) strategy is essential to addressing these issues. This study focuses on improving the temperature performance of phase change material (PCM-encased solid-state LIBs (SLIBs) by employing the NTGK module and integrating it into ANSYS Fluent, to assess the discharge behavior of LIBs. Additionally, a comparative analysis of two outperforming LCO/LAGP/G, and LFP/LLZO/Li cell combinations, was examined. The LCO/LAGP/G combination exhibited a 1.8 and 0.68% temperature reduction in capric acid and paraffin wax, whereas the LFP/LLZO/Li configuration showed a 2.7% reduction in capric acid and a 1.45% reduction in paraffin wax respectively.