With the advent of sophisticated technologies and complexity of electronics and mechanical system for mobility applications, the challenges for better heat management is paramount. The challenge is largely driven by integration of most innovative auto subsystems and their demand of being tightly packed into a lower volume, mass and relatively higher power consumptions compared to the older version. One of the examples is the thermal management in electric vehicle battery system.
The thermal management issue is the primary concern that impedes the widespread applications of lithium ion batteries in electric vehicles. It significantly affects not only the life cycle of the batteries, also the performances of the electric vehicles. A thermal runway often happens due to different kinds of abuse conditions like mechanical, electrical, and thermal abuse. There are several aspects that need to be addressed like choice of efficient battery materials, good battery design, incorporation of thermal management solutions for electronic components, proper cooling systems (traditional air, water -glycol cooling to 3M engineered fluid NovecTM and passive defense against the practical abuse conditions would ensure the shield against the thermal runaways. The current paper is focused on efficient alternative cooling technology for EV battery system.