Encapsulating MWNTs into Hollow Porous Carbon Nanotubes: A Tube-in-Tube Carbon Nanostructure for High-Performance Lithium-Sulfur Batteries

被引：375

作者：

Zhao, Yi ^{[1
,3
]}

Wu, Wangliang ^{[1
]}

Li, Jiaxin ^{[1
]}

Xu, Zhichuan ^{[3
,4
]}

Guan, Lunhui ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China

[2] Chinese Acad Sci, Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China

[3] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

[4] Nanyang Technol Univ, Energy Res Inst NTU, Singapore 639798, Singapore

来源：

ADVANCED MATERIALS | 2014年 / 26卷 / 30期

基金：

新加坡国家研究基金会; 中国国家自然科学基金;

关键词：

LI-S BATTERIES; CATHODE MATERIAL; GRAPHENE; COMPOSITE; STABILITY; PROSPECTS; CAPACITY; STORAGE;

D O I：

10.1002/adma.201401191

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A tube-in-tube carbon nanostructure (TTCN) with multi-walled carbon nanotubes (MWNTs) confined within hollow porous carbon nanotubes is synthesized for Li-S batteries. The structure is designed to enhance the electrical conductivity, hamper the dissolution of lithium polysulfide, and provide large pore volume for sulfur impregnation. As a cathode material for Li-S batteries, the S-TTCN composite with 71 wt% sulfur content delivers high reversible capacity, good cycling performance as well as excellent rate capabilities. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：5113 / 5118

页数：6

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