Battery system matching and design for a formula student electric racecar

As energy storage system which should supply enough energy to the racecar, battery system shouldn´t weight too much in order to build a lightweight, energy-saving and competitive car. The energy consumed by the motor can be known using power balance equation with racecar velocity information obtained in previous competition, and thus the number of cells is determined after battery selection. As for battery system container, the use of polycarbonate plastic helps a lot to reduce weight and the well-designed structure for ventilation turns out to be effective for cooling the battery.