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

页码：1608 / 1615

页数：8

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