In recent years,with the vigorous development of new energy,power batteries have become the power source of new energy vehicles,of which lithium ion has excellent performance and high capacity has been favored by a large number of automakers.As an important component of power battery energy management system,SOC,the state of charge of power battery,has an important impact on its accurate evaluation.At present,there have been a lot of researches on the estimation of the state of charge of power battery at home and abroad.With the development of power batteries,the decommissioning of power batteries has become a major urgent problem.The treatment of decommissioned batteries mainly includes cascade utilization and recycling and disassembly.The study reviews the detection methods and cascade utilization methods of power batteries,so as to lay a foundation for their further development.
关键词
动力电池/SOC估计/安时积分/卡尔曼滤波/梯次利用
Key words
Power battery/SOC estimation/Ampere-hour integral/Kalman filtering/Echelon utilization