Thermal Management System for Lithium-Ion Battery Packs
A thermal management system for electric vehicle battery packs that uses phase-change materials embedded in a porous aluminum matrix to maintain optimal battery temperature during fast charging. The system integrates micro-channels filled with a low-viscosity coolant that circulates through the battery module, absorbing excess heat generated during high-rate charging. The phase-change material transitions from solid to liquid at 45°C, providing a thermal buffer that prevents hot spots while allowing continuous charging at rates up to 3C without degradation of cell chemistry. The porous aluminum structure provides structural support while maximizing surface area for heat transfer, reducing overall system weight by 30% compared to conventional liquid cooling approaches.
