Enhanced cycling performances of hollow Sn compared to solid Sn in Na-ion battery

被引：41

作者：

Cheng, Yayi ^{[1
]}

Huang, Jianfeng ^{[1
]}

Li, Ruizi ^{[1
]}

Xu, Zhanwei ^{[1
]}

Cao, Liyun ^{[1
]}

Ouyang, Haibo ^{[1
]}

Li, Jiayin ^{[1
]}

Qi, Hui ^{[1
]}

Wang, Caiwei ^{[1
]}

机构：

[1] Shaanxi Univ Sci & Technol, Sch Mat Sci & Engn, Xian 710021, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2015年 / 180卷

基金：

中国国家自然科学基金;

关键词：

Tin; Hollow structure; Na-ion battery; Electrochemical performance; NEGATIVE ELECTRODE MATERIAL; SENSITIZED SOLAR-CELLS; HIGH-CAPACITY; ANODE MATERIALS; TIN NANOPARTICLES; ACCURATE CONTROL; FACILE SYNTHESIS; STABLE ANODE; LI-ION; SODIUM;

D O I：

10.1016/j.electacta.2015.08.125

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Hollow Sn nanostructures were obtained by simply controlling PVP addition in a solution-based reduction process. These nanostructures are assembled by many Sn nanoparticles with an inner void structure in the center. As an anode in Na-ion battery, the hollow Sn nanoparticles present improved cycling stability and capability in comparison with solid Sn nanoparticles, clearly indicating enhanced electrochemical properties for pure Sn anode in Na-ion battery. Moreover, their electrochemical impedance spectroscopy and charge/discharge profiles reveal the hollow structure not only maintains much higher capacity at large volumetric shrinkage process, but also provides structural stability and facilitated charge transfer in Sn anodes during the electrochemical reaction. Therefore, this hollow Sn nanostructure could provide new insight towards the exploration and design of alloy anode materials in Na-ion battery. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：227 / 233

页数：7

共 51 条

[51] Electrospun Sb/C Fibers for a Stable and Fast Sodium-Ion Battery Anode [J].

Zhu, Yujie ;

Han, Xiaogang ;

Xu, Yunhua ;

Liu, Yihang ;

Zheng, Shiyou ;

Xu, Kang ;

Hu, Liangbing ;

Wang, Chunsheng .

ACS NANO, 2013, 7 (07) :6378-6386

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