Na0.44MnO2-CNT electrodes for non-aqueous sodium batteries

被引：81

作者：

Zhao, Liwei ^{[1
]}

Ni, Jiangfeng ^{[1
]}

Wang, Haibo ^{[1
]}

Gao, Lijun ^{[1
]}

机构：

[1] Soochow Univ, Sch Energy, Suzhou 215006, Peoples R China

来源：

RSC ADVANCES | 2013年 / 3卷 / 18期

关键词：

LITHIUM-ION BATTERIES; CARBON NANOTUBES; CATHODE MATERIAL; MANGANESE OXIDE; PERFORMANCE; NANOWIRES; ANODE;

D O I：

10.1039/c3ra23032e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Crystalline Na0.44MnO2 materials are readily synthesized via a solid state method followed by mixing with carbon nanotubes (CNTs). The obtained Na0.44MnO2-CNT composites consist of rod-like Na0.44MnO2 particles entangled with CNTs. Their electrochemical properties were thoroughly investigated in assembled non-aqueous Na0.44MnO2-CNT//Na cells using cyclic voltammetry, galvanostatic testing, and electrochemical impedance spectroscopy. The results show that the Na0.44MnO2-CNT material can deliver a high capacity over 113 mAh g(-1) with stable cycling performance over 40 cycles. In addition, it exhibits an excellent rate capability, delivering a capacity of 95 mAh g(-1) at a high rate of 5 C. The high capacity retention combined with remarkable high-rate capability makes Na0.44MnO2-CNT a promising electrode material for advanced Na-ion batteries.

引用

页码：6650 / 6655

页数：6

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