Ultrasound Assisted Design of Sulfur/Carbon Cathodes with Partially Fluorinated Ether Electrolytes for Highly Efficient Li/S Batteries

被引：226
|
作者：
Weng, Wei [1 ]
Pol, Vilas G. [1 ]
Amine, Khalil [1 ]
机构：
[1] Argonne Natl Lab, Chem Sci & Engn Div, Electrochem Energy Storage Dept, Argonne, IL 60439 USA
来源：
ADVANCED MATERIALS | 2013年 / 25卷 / 11期
关键词：
lithium-sulfur battery; ultrasound-assisted synthesis; fluorinated ether electrolyte; LITHIUM-SULFUR BATTERIES; GRAPHENE OXIDE; HIGH-CAPACITY; ELECTROCHEMICAL PROPERTIES; DISCHARGE PERFORMANCE; ENCAPSULATED SULFUR; LIQUID ELECTROLYTES; COMPOSITE; ION; PARTICLES;
D O I：
10.1002/adma.201204051
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A one-step, eco-friendly ultrasound-assisted process is established for the rapid synthesis of sulfur-carbon composite cathode materials, avoiding the widely used, energy inefficient "melt-down" process for Li-S batteries. It is demonstrated that, without inserting sulfur into pores of carbon, the coulombic efficiency of SC/Li cell in the new DOL/D2 electrolyte is greater than 96% for 100 cycles, which is far superior to the reported numerous electrolyte formulations. [GRAPHICS] .
引用
收藏
页码：1608 / 1615
页数：8
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