Sn-contained N-rich carbon nanowires for high-capacity and long-life lithium storage

被引：36

作者：

Chen, Jizhang ^{[1
]}

Yang, Li ^{[1
]}

Fang, Shaohua ^{[1
]}

Zhang, Zhengxi ^{[1
]}

Deb, Aniruddha ^{[2
]}

Hirano, Shin-ichi ^{[3
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China

[2] Univ Michigan, Dept Chem, Ann Arbor, MI 48109 USA

[3] Shanghai Jiao Tong Univ, Hirano Inst Mat Innovat, Shanghai 200240, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2014年 / 127卷

基金：

中国国家自然科学基金;

关键词：

carbon nanowire; tin; nitrogen; anode; lithium ion battery; PERFORMANCE ANODE MATERIAL; ION BATTERIES; ELECTROCHEMICAL PERFORMANCE; TIN-NANOPARTICLES; COMPOSITE ANODES; GRAPHENE NANOSHEETS; ENERGY-STORAGE; NANOFIBERS; NANOTUBES; NANOCOMPOSITES;

D O I：

10.1016/j.electacta.2014.02.066

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We report here for the first time Sn-contained N-rich carbon nanowires, which are prepared via a facile and scalable procedure using poly-pyrrole as the carbon source. As-obtained nanowires with a diameter of about 50 nm crosslink with each other with enough void space, beneficial to accommodating lithiation induced volumetric change and mechanical stress. In particular, this product contains abundant nitrogen (9.8 wt.%), favorable for Li+ diffusion and storage. It therefore exhibits excellent cycling stability of 682.6 and 760.1 mAhg(-1) at 500 mAg(-1) after 200 and 600 cycles, respectively. It also delivers great high rate performance even at 10 Ag-1. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：390 / 396

页数：7

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