用电化学测试方法解析阴离子在水溶盐电解液中的传输行为

吉林大学学报(理学版) ›› 2020, Vol. 58 ›› Issue (6): 1484-1488.

用电化学测试方法解析阴离子在水溶盐电解液中的传输行为

陈楠，于东旭，魏芷宣，王春忠

吉林大学物理学院, 长春 130012

出版日期:2020-11-18 发布日期:2020-11-26
通讯作者: 王春忠 wcz@jlu.edu.cn

Analyzing Transport Behavior of Anions in Water-in-Salt Electrolyte by Electrochemical Measurement Methods

CHEN Nan, YU Dongxu, WEI Zhixuan, WANG Chunzhong

College of Physics, Jilin University, Changchun 130012, China

Online:2020-11-18 Published:2020-11-26

摘要/Abstract

摘要： 测试分析锌离子电池中阴离子的氧化还原反应，以MnO₂为研究对象，用循环伏安法、恒流充放电法及非原位X射线光电子能谱测试分析MnO₂中的氧在水溶盐电解液中的氧化还原反应. 结果表明，在低浓度电解液中，氧未发生氧化还原反应，在质量摩尔浓度为30 mol/kg的ZnC_l2电解液中，氧在高电位处发生氧化还原反应.

关键词: 水溶盐电解液, 二氧化锰, 氧的氧化还原反应

Abstract: The redox reaction of anions in zinc ion batteries was tested and analyzed. Taking the MnO₂ as the research object, the cyclic voltammetry, galvanostatic charge-discharge method and ex situ X-ray photoelectron spectroscopy were applied to analyze the redox reaction of oxygen of MnO₂ in water-in-salt electrolyte. The results show that the oxidation reaction of oxygen exists at high potential when using the 30 mol/kg ZnCl₂, but it does not happen in the diluted electrolyte.

Key words: water-in-salt electrolyte, manganese dioxide, redox reaction of oxygen

中图分类号:

O469

陈楠, 于东旭, 魏芷宣, 王春忠. 用电化学测试方法解析阴离子在水溶盐电解液中的传输行为[J]. 吉林大学学报(理学版), 2020, 58(6): 1484-1488.

CHEN Nan, YU Dongxu, WEI Zhixuan, WANG Chunzhong. Analyzing Transport Behavior of Anions in Water-in-Salt Electrolyte by Electrochemical Measurement Methods[J]. Journal of Jilin University Science Edition, 2020, 58(6): 1484-1488.