电化学测试技术在锂离子电池中的应用研究  

Research on the applications of electrochemical measurement technologies in lithium-ion batteries

作　　者：牛凯[1] 李静如 李旭晨 马晶[1] 刘燊 李浩[1] 张文堤 彭鹏[1] 陈杰威[1] 刘乐浩 姜冰[1] 褚立华 李美成[1] NIU Kai;LI Jingru;LI Xuchen;MA Jing;LIU Shen;LI Hao;ZHANG Wendi;PENG Peng;CHEN Jiewei;LIU Lehao;JIANG Bing;CHU Lihua;LI Meicheng(School of New Energy,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学新能源学院,北京102206

出　　处：《中国测试》2020年第7期90-101,共12页China Measurement & Test

基　　金：教育部联合基金(6141A020225);北京市自然科学基金(L172036);华北电力大学中央高校基本科研业务费(2019QN001,2017ZZD02)。

摘　　要：电化学测试技术在锂离子电池研究中起着重要作用,该文详细概括循环伏安测试技术、电化学阻抗测试技术和充放电测试技术的基本原理和操作方法,并总结这3类电化学测试技术在锂离子电池研究中的应用现状,认为这些电化学技术存在测试结果易受测试条件改变、模拟结果不准确等问题,指出还应发展原位电化学阻抗等测试技术以及更加可靠的数据分析方法,进一步规范测试标准,建立不同电池体系的大数据库,以期更好地研究二次电池中的电化学过程。Electrochemical testing technology plays an important role in the study of lithium-ion battery.This paper introduces the basic principles and operation methods of cyclic voltammetry,electrochemical impedance testing technology and charge discharge testing technology in detail,and summarizes the application progress of these three kinds of electrochemical testing technology in the study of lithium-ion battery.But there are some problems with these technologies,such as the test results vary greatly with the test conditions,and the simulation results are not reliable.In the future,in-situ nondestructive electrochemical impedance testing technology and more reliable data analysis methods should be developed in order to better study the electrochemical process in the battery.Standard measurement methods and large database about different battery systems are also necessary.

关 键 词：锂离子电池 电化学技术 循环伏安法 交流阻抗 充放电测试 

分 类 号：TB34[一般工业技术—材料科学与工程]