电工技术学报2017,Vol.32Issue(9):112-120,9.
一种均衡考虑锂电池内部能量损耗和充电速度的多段恒流充电方法
A Multistage Current Charging Method for Li-Ion Battery Considering Balance of Internal Consumption and Charging Speed
摘要
Abstract
A fast charging method should make a balance between battery's safety/cycle life and charging time.For that the battery's temperature or energy loss should be controlled in the method.This paper proposed a charging method of Li-ion battery to balancing internal consumption and charging speed.Firstly,based on the constant current charging voltage curves of the Li-ion battery,the method gave a procedure to get the relationship of the internal resistances with stage of charge (SOC) and charge currents.Then the energy loss function was simplified and an objective function was designed for balancing charging time and the loss.Finally,for real time implementation,a multistage current charging curve is designed with different balance weight factors in each stage.Experiment shows the advantages.关键词
锂电池直流内阻/充电时间/能量损耗/恒流充电/权重Key words
Li-ion battery internal direct current resistance/charging time/energy loss/constant current charging/weight factor分类
化学化工引用本文复制引用
刘伟,吴海桑,何志超,孙孝峰,杨耕..一种均衡考虑锂电池内部能量损耗和充电速度的多段恒流充电方法[J].电工技术学报,2017,32(9):112-120,9.基金项目
国家自然科学基金项目资助(U1510208,61273045和51361135705). (U1510208,61273045和51361135705)