LAUSR

Abstract In a conventional system, the cells of the entire battery pack are sandwiched in a single phase change material (PCM). The PCM material confining the corner cells may reject heat at a faster rate to the adjoining ambient air as compared to the cells located in the middle of the pack. In this work, the conventional battery layout system is modified to induce active and passive cooling for each cell of a battery module. For this, battery pack is arranged into several modules; each module comprised of six cylindrical cells in a 1S6P arrangement. Each cell is placed in a 4 mm cylindrical gap enclosure filled with phase change material and interconnected together for further cooling at inter-spacings. Cooling performance of such modified layout is reported at different discharge rates (2C and 4C) and ambient condition (27 °C, 35 °C and 40 °C). It is found that confined phase change material around each cell help in better heat dissipation from PCM and improved temperature uniformity in the module.