Thermal Management Using PCM and Dielectric Two-Phase Cooling for Battery Packs (LANDINIS_U26EMP)

The transition toward electric mobility is accelerating globally, and electric two-wheelers (E2Ws) have emerged as a highly viable solution for urban transport, especially in South and Southeast Asia due to their affordability and compactness. However, one of the key barriers to performance and safety is effective thermal management of lithium-ion battery (LIB) packs. Overheating can lead to reduced efficiency, cell degradation, and in worst cases, thermal runaway.

Conventional air-cooling methods are insufficient for compact E2W battery configurations, particularly under high loads and hot climates. Hybrid systems that integrate phase change materials (PCMs) with two-phase dielectric liquid cooling have recently shown potential to manage peak thermal loads, smooth temperature gradients, and extend battery life. This project aims to design, simulate, and experimentally validate a hybrid battery thermal management system (BTMS) combining these two techniques, tailored to the needs of two-wheeler EVs in South Asian climates.

Aims and Objectives• To develop a compact hybrid BTMS incorporating PCMs and two-phase dielectric cooling.• To model thermal behaviour during fast charging and discharging cycles.• To prototype and test the BTMS under realistic urban drive profiles.• To evaluate performance in terms of temperature control, safety, and energy efficiency. Proposed MethodologyPCM materials will be selected and enhanced with thermally conductive fillers. These will