Efficient Synthesis of Graphene Nanoscrolls for Fabricating Sulfur-Loaded Cathode and Flexible Hybrid Interlayer toward High-Performance Li-S Batteries

被引：75

作者：

Guo, Yi ^{[1
]}

Zhao, Gang ^{[1
]}

Wu, Naiteng ^{[1
]}

Zhang, Yun ^{[1
]}

Xiang, Mingwu ^{[1
]}

Wang, Bo ^{[2
]}

Liu, Heng ^{[1
]}

Wu, Hao ^{[1
]}

机构：

[1] Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610064, Peoples R China

[2] Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 15001, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2016年 / 8卷 / 50期

基金：

中国国家自然科学基金;

关键词：

graphene nanoscroll; large surface area; high sulfur loading; free-standing hybrid interlayer; lithium sulfur batteries; CARBON NANOSCROLLS; LITHIUM; POLYSULFIDE; OXIDE; SCROLLS; STORAGE;

D O I：

10.1021/acsami.6b13455

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A modified lyophilization approach is developed and used for highly efficient transformation of 2D graphene oxide sheet into 1D graphene nanoscroll (GNS) with high topological transforming efficiency (similar to 94%). Because of the unique open tubular structure and large specific surface area (545 m(2) g(-1)), GNS is utilized for the first time as a porous cathode scaffold for encapsulating sulfur with a high loading (81 wt %), and also as a conductive skeleton for assembling MnO2 nanowires into a flexible free-standing hybrid interlayer, both enabling high-rate and long-life Li-S battery.

引用

页码：34185 / 34193

页数：9

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