An Experimental Study on Thermal Performance of Graphite-Based Phase-Change Materials for High-Power Batteries

High-power lithium-ion capacitors (LiC) are hybrid energy storage systems (EES) with the combined benefits of batteries (LiB) and supercapacitors, such as high specific energy, power, a long lifetime. Such advanced technology can be used in high-power applications when charging discharging demanded. Nevertheless, their performance lifetime highly depend on temperature. In this context, paper presents an optimal passive thermal management system (TMS) employing phase-change materials (PCM) graphite to maintain LiC maximum To evaluate response PCM PCM/G, experimental tests have been performed. The results exhibit that cell is under natural convection, temperature exceeds 55 °C, which very harmful for cell’s Using pure paraffin PCM, was reduced from 55.3 °C 40.2 shows 27.3% reduction compared convection. PCM/G composite, (natural convection) 38.5 30.4% main reason PCM’s latent heat fusion, well conductivity. Moreover, different thicknesses were investigated reached 38.02 38.57 41.18 43.61 46.98 15 mm, 10 7 5 2 respectively. thickness mm optimum reduce cost, weight, volume,