一种锂电池在线监测系统设计  

Design of a lithium battery online monitoring system

作　　者：王保强 王田虎 黄涛 赵阳 沈运哲 WANG Baoqiang;WANG Tianhu;HUANG Tao;ZHAO Yang;SHEN Yunzhe(School of Electrical Information Engineering,Jiangsu University of Technology,Changzhou 213001,China;Technical Development Department of CRRC Nanjing Puzhen Vehicle Co.,Ltd.,Nanjing 211800,China)

机构地区：[1]江苏理工学院电气信息工程学院,江苏常州213001 [2]中车南京浦镇车辆有限公司技术开发部,江苏南京211800

出　　处：《电子设计工程》2023年第7期160-164,共5页Electronic Design Engineering

基　　金：江苏省研究生创新计划项目(XSJCX21_43);横向委托项目(KYH2011111)。

摘　　要：针对锂电池自身的化学特性原因,导致单体电压出现不一致性的现象,提出一种锂电池在线监测系统,系统硬件由单片机、检测器、报警器组成,采用LTC8602芯片、ACS712芯片、DHT11传感器分别获取准确的电压值、电流值、温度值,实现了对锂电池的电量以及过充、欠充和温度异常等情况的检测。利用LM2596S-ADJ芯片、SS8050三极管对电池进行充放电时的电压均衡保护。实验结果证明,锂电池在线检测系统能够为充分利用电池、延长电池的使用寿命提供保障,使电池能够安全运行。With the chemical characteristics of lithium battery itself,which leads to the phenomenon of voltage inconsistency of single cell,an online monitoring system for lithium battery is proposed.The hardware of the system is composed of the single⁃chip microcomputer,the detector and the alarm.LTC8602 chip,ACS712 chip and DHT11 sensor are applied to obtain the accurate values of the voltage,the electric current and the temperature respectively.The electric quantity of the lithium battery can been tested and the condition of overcharge,undercharge,abnormal temperature of the lithium battery can also been detected by this system.In addition,LM2596S-ADJ chip and SS8050 transistor are utilized to protect the balance of the battery voltage when charging and discharging.The experimental results show that the online detection system of lithium battery can make full use of the battery,prolong the service life of the battery and ensure the safe operation of the battery.

关 键 词：锂电池 单体电压 在线监测 电压均衡 

分 类 号：TN06[电子电信—物理电子学]