Centrifugally Spun SnO2 Microfibers Composed of Interconnected Nanoparticles as the Anode in Sodium-Ion Batteries

被引：25

作者：

Lu, Yao ^{[1
]}

Yanilmaz, Meltem ^{[1
]}

Chen, Chen ^{[1
]}

Dirican, Mahmut ^{[1
]}

Ge, Yeqian ^{[1
]}

Zhu, Jiadeng ^{[1
]}

Zhang, Xiangwu ^{[1
]}

机构：

[1] N Carolina State Univ, Dept Text Engn Chem & Sci, Fiber & Polymer Sci Program, Raleigh, NC 27695 USA

来源：

CHEMELECTROCHEM | 2015年 / 2卷 / 12期

基金：

美国国家科学基金会;

关键词：

anode materials; centrifugal spinning; intercalations; sodium-ion batteries; tin dioxide microfibers; REDUCED GRAPHENE OXIDE; HIGH-PERFORMANCE ANODE; LITHIUM-ION; ELECTROCHEMICAL PERFORMANCE; NEGATIVE ELECTRODES; TIO2; NANOPARTICLES; CATHODE MATERIAL; CARBON-FIBERS; ANATASE TIO2; TIN OXIDE;

D O I：

10.1002/celc.201500367

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

SnO2 microfibers were synthesized by using centrifugal spinning technology and were evaluated as the anode in sodium-ion batteries. The as-prepared SnO2 microfibers are composed of interconnected nanoparticles with small interparticle openings. The 1-demensional fibrous morphology, fine particle size, and open pore structure result in reduced electrochemical impedance and enhanced electrochemical performance. The highest capacity achieved is 567mAhg(-1) at 20mAg(-1). At a much higher current density of 640mAg(-1), the microfiber electrode still retains a high capacity of 158mAhg(-1) after 50 cycles. The SnO2 microfibers also demonstrate good rate performance in a current range of 20-640mAg(-1). The results demonstrate that SnO2 microfibers are a potential anode material candidate for sodium-ion batteries and that centrifugal spinning offers a feasible solution for the large-scale production of fibrous electrode materials.

引用

页码：1947 / 1956

页数：10

共 49 条

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