Passive Cooling of EV Batteries Using Phase Change Material: A Simulation Study
Anant Sidhappa Kurhade, Gulab Dattrao Siraskar, Sagar Arjun Dalvi, Pallavi Vishnu Kharat, Nilesh Ambaji Jadhav, Varsharani Dilip Shelkande, G. Murali, Shital Yashwant Waware, Rahul Shivaji Yadav
Abstract
The escalating global concerns regarding environmental degradation and climate change are accelerating the shift towards renewable energy sources. Traditional gas-powered vehicles, significant contributors to air pollution and global warming are being increasingly replaced by Electric Vehicles (EVs) as a more sustainable transportation solution. However, one significant challenge associated with EVs is the thermal management of their batteries. To address this issue, this study employed computer simulations to evaluate a passive cooling system for EV batteries, utilising a special material known as a Phase Change Material (PCM). The system's performance was assessed under three different power discharge rates. The results demonstrated that the PCM-based cooling system effectively reduced the maximum temperature increase in the battery by 1-2% compared to an unprotected battery. This indicates that the system efficiently dissipates heat from the battery, thereby improving its overall performance and lifespan. Major Findings: 1. Effective Thermal Management: The study demonstrates the effectiveness of a PCM-based cooling system in reducing the maximum temperature rise in lithium-ion battery cells, particularly under high discharge rates. 2. Improved Battery Performance and Lifespan: By effectively dissipating heat, the PCM cooling system contributes to improved battery performance and extended lifespan. 3. Potential of Parallel Cell Configurations: The study suggests that parallel cell configurations may offer superior thermal performance compared to series configurations, although further research is needed to validate this finding.