Quick Charging Strategy Based on Temperature Characteristics: Presented at the EVTeC and APE Japan on September 30, 2018

摘要

This paper studies the temperature characteristics of lithium iron phosphate batteries, and obtains the temperature rising trend under different magnifications. After that, polynomial fitting was performed on the temperature data of charge and discharge to obtain the rate of change of temperature. Then, Power function fitting was carried out between charge rate and temperature change rate to predict the temperature change rate of 4C and 5C. Finally, according to the experimental data calculated rate of change of temperature and the predicted rate of change of temperature to make a quick charging strategy.