A study of phase-change material application in lithium-ion power battery thermal management

doi:10.12028/j.issn.2095-4239.2017.0038

Abstract

Abstract: Phase change composite (PCC) thermal control technology is a novel type of lithium-ion power battery thermal management in recent years. The key physical properties of a paraffin/graphite composite PCC were analyzed by SEM, DSC and TG, the results show that the phase transition temperature is about 40 ℃ and the latent heat is about 160 J/g. Before and after adding PCC, the temperature rises of battery modules at different discharge rates were studied numerically and experimentally. The results showed that adding PCC can effectively improve the battery module thermal control ability, although the energy density is somewhat impacted. Therefore, its application in high power output energy system is very promising. Finally, the simulation results show that the composite control strategy with combining phase change material and liquid cooling method is one of the research directions of power lithium ion battery thermal management.

Key words: phase change composite, battery thermal management, battery thermal simulation, battery thermal test

YOU Ruobo. A study of phase-change material application in lithium-ion power battery thermal management[J]. Energy Storage Science and Technology, 2017, 6(5): 1148-1157.

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