Abstract
Electrochemical impedance spectroscopy (EIS) is a very effective methodology employed in the evaluation of performance and degradation mechanisms associated with lithium-ion batteries. In order to comprehend the complex electrochemical processes taking place within these energy storage devices, reliable and effective diagnostic tools are required due to the constant improvements in battery technology. EIS methodology has gained prominence as a very effective non-destructive method for examining the electrochemical characteristics of batteries. This technique offers significant contributions by providing useful insights into the internal operations of batteries. The main objective of this study is to create an electrical equivalent circuit model of a lithium-ion battery based on physics, and then use EIS to comprehend the electrical behavior and impedance of the battery to evaluate its performance under various operating scenarios. We seek to identify the critical elements influencing the battery’s capacity, performance, and lifespan by capturing the intricate interaction of EIS. The results of this research are going to enhance the understanding of battery behavior and supporting the design as a more reliable and efficient energy storage systems for a wide range of applications, from portable electronic devices to electric vehicles and renewable energy integration.
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