Improved performance of Li-S battery with hybrid electrolyte by interface modification

被引：19
|
作者：
Wang, Qingsong [1 ,2 ]
Guo, Jing [1 ,2 ]
Wu, Tian [1 ,2 ]
Jin, Jun [1 ]
Yang, Jianhua [1 ]
Wen, Zhaoyin [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China
来源：
SOLID STATE IONICS | 2017年 / 300卷
关键词：
Lithium-sulfur battery; Hybrid electrolyte; Solid state ionic conductor; Interface modification; LITHIUM SULFUR BATTERY; RATE-CAPABILITY; GLASS-CERAMICS; SEPARATOR; CATHODE; CARBON; PRECIPITATION; LI2S2/LI2S; CHEMISTRY; CELLS;
D O I：
10.1016/j.ssi.2016.11.001
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A carbon coating layer facing sulfur cathode is introduced on one side of the solid state ionic conductor in the ceramic -liquid hybrid electrolyte based Li-S cell. Both the cycling performance and the rate capability are improved as a result of enhanced electron transport for the conversion of the dissolved sulfur-containing active materials as well as the wettability of the ceramic electrolyte towards the liquid electrolyte. The interface modified hybrid Li-S cell exhibits an initial discharge capacity of 1409 mA h g(-1),and remains at 1000 mA h g(-1), which is 235 mA h g(-1), higher than the pristine one, after 50 cycles at 0.2C rate. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：67 / 72
页数：6
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