Analisis Perbandingan Efektivitas Termal Baterai Lithium-ion Pelat Pendingin Konvensional vs Jaring Laba-laba

Abstract

Lithium-ion batteries excel as energy storage media for electric vehicles due to their high energy and power density, lightweight, low self-discharge, good recyclability, and long cycle life compared to other batteries. However, excessive heat during operation can lead to extreme temperatures and uneven distribution, potentially causing fires or explosions if not properly managed, thus necessitating a Battery Thermal Management System (BTMS). This study aims to analyze and compare the effectiveness of two cooling plates—one with a conventional geometry and the other with a spider-web design—in reducing the heat generated by lithium-ion batteries. The BTMS cooling plate system was simulated using a computational fluid dynamics (CFD) approach with Ansys Fluent Student 2024 R2 software. Heat flux, pressure drop, fluid velocity, and battery temperature were used as parameters to evaluate the cooling plates' effectiveness. The simulation results showed that the conventional cooling plate was more effective in reducing battery heat, with a heat flux of 4897.85 W/m² and a battery temperature of 309.89 K, compared to the spider-web cooling plate, which had a heat flux of 3407.24 W/m² and a battery temperature of 310.84 K.