Category: Transient Plane Source
Author(s): A. Dhar, Alexander A. Balandin, J. Renteria, P. Goli, R. Salgado, S. Legedza
Keywords: Fillers, graphene, hybrid phase change material, hydrocarbon, latent heat, lithium-ion batteries, mobile communications, pcms, phase change materials, self-heating, Temperature, Thermal Conductivity, thermal management, transient plan source technique, transport properties
Abstract: In this article, researchers aim to improve the thermal management of Li-ion batteries, by introducing graphene fillers to hybrid phase change materials. The thermal management of any battery is dependent on the latent heat stored within the phase change material as it transitions phases. During this time, it is also crucial to reduce the chances of an internal temperature rise. Researchers used a thermal analyzer to determine the thermal conductivity of the phase change materials. The results concluded that the addition of graphene to the phase change materials, increased the thermal conductivity by over two orders of magnitude, while maintaining the latent heat storage ability, as well as maintaining a lower internal battery temperature.
Reference: Journal of Power Sources, 248, (2014) 37-43
DOI: 10.1016/j.jpowsour.2013.08.135