锂离子电池极化电压的优化分析  

Optimization Analysis of Polarization Voltage of Lithium-Ion Battery

作　　者：余海洋[1] YU Haiyang(Chongqing Industrial and Commercial College of Intelligent Manufacturing and Automobile,Career Academy,Chongqing 401520,China)

机构地区：[1]重庆工商职业学院智能制造与汽车学院,重庆401520

出　　处：《电子器件》2019年第2期374-377,共4页Chinese Journal of Electron Devices

基　　金：重庆市教委科研项目(GZTG201614)

摘　　要：为了提高电池的充电速度和降低极化对电池性能的影响,本研究提出一种基于模糊控制技术的恒定电池极化电压的充电方法。分析了充电方式对充电电流、充电深度、极化状态和循环性能等方面的影响,并研究了恒定电池极化电压充电方法,同时与传统恒流-恒压充电方法进行比较,分析结果显示本研究的充电方法可以有效提高电池的充电速度、降低电池升温程度,并同时有利于电池的循环寿命提高。In order to improve the battery charging speed and reduce the impact of polarization on battery performance,this study proposes a method of charging a constant battery polarization voltage based on fuzzy control technology.The effects of charging mode on charging current,charging depth,polarization state and cycle performance were analyzed,and the relationship between polarization voltage and polarization impedance parameters and time attenuation factor was found.The method of charging the constant cell polarization voltage was studied.At the same time,compared with the traditional constant current-constant voltage charging method,the results of the analysis show that the charging method of the present study can effectively improve the charging speed of the battery and reduce the temperature rise of the battery.At the same time,it helps to improve the cycle life of the battery.

关 键 词：锂离子电池 极化电压 模糊控制技术 充电速度 “Thevenin”等效电路 

分 类 号：TM912[电气工程—电力电子与电力传动]