The electrochemical performance of lithium-sulfur batteries with LiClO4 DOL/DME electrolyte

被引：100

作者：

Wang, Weikun ^{[2
]}

Wang, You ^{[1
]}

Huang, Yaqin ^{[1
]}

Huang, Chongjun ^{[1
]}

Yu, Zhongbao ^{[2
]}

Zhang, Hao ^{[2
]}

Wang, Anbang ^{[2
]}

Yuan, Keguo ^{[2
]}

机构：

[1] Beijing Univ Chem Technol, Key Lab Beijing City Preparat & Proc Novel Polyme, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

[2] Res Inst Chem Def, Beijing 100083, Peoples R China

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2010年 / 40卷 / 02期

关键词：

Lithium-sulfur batteries; Electrolyte; Dimethoxy ethane; 1,3-dioxolane; LIQUID ELECTROLYTES; CATHODE; DISCHARGE; GELATIN; BINDER;

D O I：

10.1007/s10800-009-9978-z

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical performance of lithium-sulfur batteries with LiClO4 DOL/DME as electrolyte was investigated. Impedance and SEM analysis indicated that too high content of DME(Dimethoxy ethane) in electrolyte could raise the interfacial resistance of battery due to the impermeable layer formed on the surface of the sulfur cathode, which led to bad cycle performance, while the increase of DOL(1,3-dioxolane) could change those phenomena. The optimal composition of electrolyte was DME: DOL = 2:1 (v/v). With this electrolyte, the lithium-sulfur battery obtained a high initial discharge capacity of 1,200 mA h g(-1) and still remained 800 mA h g(-1) after 20 cycles.

引用

页码：321 / 325

页数：5

共 12 条

[1] Review of selected electrode-solution interactions which determine the performance of Li and Li ion batteries [J].