In-Situ Formation of Sandwiched Structures of Nanotube/CuxOy/Cu Composites for Lithium Battery Applications

被引：85

作者：

Venkatachalam, Subramanian ^{[1
]}

Zhu, Hongwei ^{[1
]}

Masarapu, Charan ^{[1
]}

Hung, KaiHsuan ^{[1
]}

Liu, Z. ^{[2
]}

Suenaga, K. ^{[2
]}

Wei, Bingqing ^{[1
]}

机构：

[1] Univ Delaware, Dept Mech Engn, Newark, DE 19716 USA

[2] AIST, Res Ctr Adv Carbon Mat, Tsukuba, Ibaraki 3058565, Japan

来源：

ACS NANO | 2009年 / 3卷 / 08期

基金：

美国国家科学基金会;

关键词：

lithium ion battery; single-walled carbon nanotube; copper oxide; composite; sandwiched structures; anode material; ELECTROCHEMICAL PERFORMANCE; CARBON NANOTUBES; ANODE MATERIALS; CUO; INTERCALATION; ELECTRODES; INSERTION; MECHANISM; STORAGE; OXIDE;

D O I：

10.1021/nn900432u

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Development of materials and structures leading to lithium ion batteries with high energy and power density is a major requirement for catering to the power needs of present day electronic industry, Here, we report an in situ formation of a sandwiched structure involving single-walled carbon nanotube film, copper oxide, and copper during the direct synthesis of nanotube macrofilms over copper foils and their electrochemical performance in lithium ion batteries. The sandwiched structure showed a remarkably high reversible capacity of 220 mAh/g at a high cycling current of 18.6 A/g (50 C), leading to a significantly improved electrochemical performance which is extremely high compared to pure carbon nanotube and any other carbon based materials.

引用

页码：2177 / 2184

页数：8

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