Communication-Direct Observation of the Shuttle Phenomenon in Lithium-Sulfur Batteries via the Digital Holographic Method

被引：8

作者：

Dai, Hongliu ^{[1
]}

Yuan, Boyu ^{[1
]}

Bai, Changyun ^{[1
]}

Lai, Chao ^{[1
]}

Wang, Chao ^{[1
,2
]}

机构：

[1] Jiangsu Normal Univ, Sch Chem & Mat Chem, Xuzhou 221116, Jiangsu, Peoples R China

[2] Xuzhou Univ Technol, Coll Chem & Chem Engn, Xuzhou 221000, Jiangsu, Peoples R China

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2018年 / 165卷 / 11期

基金：

中国国家自然科学基金;

关键词：

POLYSULFIDE SHUTTLE; COMPOSITE;

D O I：

10.1149/2.1271811jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Lithium-sulfur (Li-S) batteries are regarded as the best potential-energy storage systems because of their ultra-high energy density. However, their electrochemical performance is limited by the well-known shuttle effect. We used an online digital holography method to investigate the interfacial changes between the electrode and the electrolyte. An in-situ observation of the shuttle process was achieved in Li-S batteries. This result confirms the existence of the shuttle mechanism, and aids in the selection of preferable composite cathodes and electrolytes to produce high-performance Li-S batteries. (C) 2018 The Electrochemical Society.

引用

页码：A2866 / A2868

页数：3

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