THERMAL MANAGEMENT ANALYSIS OF SECOND-LIFE ELECTRIC VEHICLE  BATTERIES INTEGRATED INTO PHOTOVOLTAIC ENERGY STORAGE SYSTEMS

Ioan SZABO; Monica BALCAU; AncuTa JURCO; Adela BORZAN; Calin-Vasile PRODAN; Claudiu-Ioan RUSAN; Vicuta NEAGOS; Iacob-Liviu SCURTU

Authors

Ioan SZABO
Monica BALCAU
AncuTa JURCO
Adela BORZAN
Calin-Vasile PRODAN
Claudiu-Ioan RUSAN
Vicuta NEAGOS
Iacob-Liviu SCURTU

Keywords:

Second-life batteries; Thermal management; Solar energy storage; Electric vehicle batteries; Li-ion.

Abstract

The repurposing of electric vehicle batteries for stationary solar energy storage represents a sustainable pathway to extend battery life while supporting renewable energy integration. This study investigates the thermal behaviour of a second-life lithium-ion battery module intended for photovoltaic energy storage applications. A three-dimensional numerical model combined with computational fluid dynamics simulations was developed to analyse temperature distribution, heat generation, and thermal uniformity under representative operating scenarios. Several thermal management configurations were evaluated to determine their effectiveness in maintaining safe operating temperatures. The results indicate that appropriate thermal control strategies substantially improve temperature uniformity and reduce thermal gradients.

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