This study presents a novel smart outer battery pack designed to enhance thermal stability and safety in electric vehicles (EVs). By integrating advanced ceramic-polymer composite materials with intelligent thermal sensors and control systems, the battery pack actively monitors and regulates temperature fluctuations, preventing overheating and external heat intrusion. The material choice ensures high thermal resistance, electrical insulation, and mechanical strength, contributing to longer battery life and improved safety. Simulation results confirm up to 40% reduction in heat transfer compared to conventional aluminum casings, indicating a robust solution for future EV battery safety.