Phase change materials (PCMs) are considered for battery thermal management systems (BTMS). This study proposes a coupled electrochemical-thermal model of a cylindrical battery incorporating a molten salt PCM, specifically sodium thiosulfate pentahydrate, within a hollow mandrel. For safety, the battery's operating maximum temperature limit is set at 50 °C. The study compares the time it takes to reach this temperature limit across different configurations: without PCM, with PCM applied externally, and with PCM applied both externally and internally in place of the mandrel. The PCM volumes used internally and externally are selected to properly compare the effectiveness. The best performance is obtained in the case of PCM placed both internally and externally, but twice the volume is used. Externally placed PCM performs better than internally placed PCM, but will result in a larger battery dimension
Cylindrical battery thermal management with different phase change material solutions / Piccirillo, Francesco; Iasiello, Marcello; Bianco, Nicola; Chiu, Wilson K. S.. - (2024). (Intervento presentato al convegno ThermaEComp2024 Sixth International Conference on Computational Methods for Thermal and Energy Problems tenutosi a Budva, Montenegro nel 9 Settembre - 11 Settembre 2024).
Cylindrical battery thermal management with different phase change material solutions
Francesco Piccirillo;Marcello Iasiello;Nicola Bianco;
2024
Abstract
Phase change materials (PCMs) are considered for battery thermal management systems (BTMS). This study proposes a coupled electrochemical-thermal model of a cylindrical battery incorporating a molten salt PCM, specifically sodium thiosulfate pentahydrate, within a hollow mandrel. For safety, the battery's operating maximum temperature limit is set at 50 °C. The study compares the time it takes to reach this temperature limit across different configurations: without PCM, with PCM applied externally, and with PCM applied both externally and internally in place of the mandrel. The PCM volumes used internally and externally are selected to properly compare the effectiveness. The best performance is obtained in the case of PCM placed both internally and externally, but twice the volume is used. Externally placed PCM performs better than internally placed PCM, but will result in a larger battery dimensionI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.