Advanced Battery Management Technologies for Electric Vehicles

Foreword by Professor Sun

The promotion of electric vehicles is part of a national strategy to reduce oil consumption and air pollution in many countries around the world. In China, the electric vehicle industry has been designated by the central government as a strategic emerging industry that represents what is considered to be the future of automobiles. It is well known that the advancement of battery technologies is crucial to the safe and efficient operation of electric vehicles. The two fundamental characteristics about battery technologies that affect the cost of operation, performance, and durability are power density and energy density. For vehicle applications, it is desirable that batteries have both high power density and high energy density, but there is generally a trade‐off between these two characteristics, resulting in higher power density with a correspondingly lower energy density, or higher energy density with a lower power density.

In recent years, lithium‐ion batteries have been widely accepted for electric vehicle applications due to their superiority in high energy density, high power density, and long cycle life. They exhibit strong coupling effects among electric, thermal and mechanical behaviors in electric vehicle applications, leading to strong time‐varying, ambient temperature dependent and nonlinear characteristics. However, there are few measurable parameters for controlling and monitoring batteries. Currently, the most popular parameters are battery ...