储能科学与技术 ›› 2021, Vol. 10 ›› Issue (3): 987-994.doi: 10.19799/j.cnki.2095-4239.2020.0419

• 储能材料与器件 • 上一篇    下一篇

锂离子电池参比电极研究进展

高金辉1,2(), 陈韵竹2, 杨洋1, 孟繁慧2, 徐宏1, 王莉1, 周江2, 何向明1()   

  1. 1.清华大学核能与新能源技术研究院，北京 100084
    2.天津力神电池股份有限公司，天津 300384
  • 收稿日期:2020-12-27 修回日期:2021-01-16 出版日期:2021-05-05 发布日期:2021-04-30
  • 通讯作者: 何向明 E-mail:gaojh20@mails.tsinghua.edu.cn;hexm@mail.tsinghua.edu.cn
  • 作者简介:高金辉（1985—），男，博士研究生，研究方向为锂离子电池，E-mail：gaojh20@mails.tsinghua.edu.cn
  • 基金资助:
    科技部国际合作项目(2019YFE0010200);科技部重点研发计划项目(2019YFA0705703);清华大学-佛山先进制造研究院基金项目(2019THFS0132);清华大学自主科研计划项目(2019Z02UTY06);天津市自然科学基金项目(20JCYBJC00690)

Research progress of reference electrode for lithium-ion batteries

Jinhui GAO1,2(), Yunzhu CHEN2, Yang YANG1, Fanhui MENG2, Hong XU1, Li WANG1, Jiang ZHOU2, Xiangming HE1()   

  1. 1.Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
    2.Tianjin Lishen Battery Joint-Stock Co. , Ltd. , Tianjin 300384, China
  • Received:2020-12-27 Revised:2021-01-16 Online:2021-05-05 Published:2021-04-30
  • Contact: Xiangming HE E-mail:gaojh20@mails.tsinghua.edu.cn;hexm@mail.tsinghua.edu.cn

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摘要：

参比电极测试方法在锂离子电池研究中有着广泛的应用。本文总结了几种常规类型的参比电极的制作方法，包括T型Swagelok接头装配法、参比电极植入法、原位沉积法。还介绍了锂参比电极在锂离子电池研究中的应用：电极电位的监控，正、负极电化学阻抗谱的单独分析，极片和电解液之间界面反应的分析，电池快充边界的确定，电池失效分析等。最终认为金属锂参比电极在使用寿命、植入位置、植入的便利性和可操作性等方面仍有改进空间。

关键词: 参比电极, 锂离子电池, 电化学过程, 电极电位, 失效分析

Abstract:

The reference electrode test method has a wide range of applications in lithium-ion batteries. Herein, we introduce the production of several types of conventional reference electrodes, including Swagelok method, implant of reference electrode, and in-situ deposition. We also introduce the applications of lithium reference electrodes in lithium-ion batteries, such as the test of electrode potential, separation analysis in the electrochemical impedance spectroscopy of electrodes, the interface reactions between electrodes and electrolytes, and the decision of fast charging boundaries of batteries. We believe that the reference electrode can still be improved in the following aspects: lifetime, implantation position, and the convenience and operability of implantation. Thus, reference electrodes can find more applications in commercial batteries.

Key words: reference electrode, lithium ion battery, electrochemical process, electrode potential, failure analysis

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