Three-dimensional hierarchical self-supported multi-walled carbon nanotubes/tin(IV) disulfide nanosheets heterostructure electrodes for high power Li ion batteries

被引：46

作者：

Kang, Jin-Gu ^{[2
]}

Lee, Gwang-Hee ^{[1
,2
]}

Park, Kyung-Soo ^{[1
,2
]}

Kim, Sang-Ok ^{[3
]}

Lee, Sungjun ^{[4
]}

Kim, Dong-Wan ^{[1
]}

Park, Jae-Gwan ^{[2
]}

机构：

[1] Ajou Univ, Dept Mat Sci & Engn, Suwon 443749, South Korea

[2] Korea Inst Sci & Technol, Ctr Optoelect Convergence Syst, Seoul 136791, South Korea

[3] Korea Inst Sci & Technol, Energy Storage Res Ctr, Seoul 136791, South Korea

[4] Korea Res Inst Stand & Sci, Div Phys Met, Taejon 305600, South Korea

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 18期

基金：

新加坡国家研究基金会;

关键词：

RECHARGEABLE LITHIUM BATTERIES; CHEMICAL-VAPOR-DEPOSITION; NANOSTRUCTURED MATERIALS; NEGATIVE ELECTRODES; ENERGY-CONVERSION; SILICON NANOWIRES; STORAGE DEVICES; ANODE MATERIALS; SNS2; PERFORMANCE;

D O I：

10.1039/c2jm16248b

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：

It is of great significance to improve the power density of Li ion batteries (LIBs) in pursuit of high-end products and technologies. Herein, we investigated the three-dimensional (3D) hierarchical self-supported multi-walled carbon nanotubes (MWCNTs)/tin(IV) disulfide nanosheets (SnS2 NS) heterostructured electrodes, demonstrating superior rate capabilities of 480 and 420 mAh g(-1) even at the very high c-rates of 5C and 10C (charging in 6 min), respectively. The origins of the enhancement of the rate capabilities were discussed in detail by focusing on the roles of MWCNTs, which were directly grown on the metallic current collector. Furthermore, we have delicately dealt with the in-plane and plane-normal growth mechanisms of hexagonal SnS2 NS from the crystallographic point of view.

引用

页码：9330 / 9337

页数：8

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