Synthesis and electrochemical performance of Na0.7Fe0.7Mn0.3O2 as a cathode material for Na-ion battery

被引：15

作者：

Zhou Yuan ^{[1
]}

Wu Xuehang ^{[1
]}

Wu Wenwei ^{[1
]}

Wang Kaituo ^{[1
]}

机构：

[1] Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2014年 / 40卷 / 08期

关键词：

Cathode material; Electrochemical performance; Na0.7Fe0.7Mn0.3O2; Sodium-ion battery; POSITIVE ELECTRODE; SODIUM;

D O I：

10.1016/j.ceramint.2014.04.126

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A new technique was employed to synthesize Na0.7Fe0.7Mn0.3O2 precursor by adding citric acid to an aqueous solution of sodium, iron, and manganese salts. The rhombohedral Na0.7Fe0.7Mn0.3O2 was obtained by calcining the precursor in air. The precursor and its calcined products were characterized by X-ray powder diffraction and scanning electron microscopy. The results showed that a high-crystallized Na0.7Fe0.7Mn0.3O2 with a rhombohedral structure was obtained when the precursor was calcined over 600 degrees C in air for 8 h. The product obtained at 800 degrees C delivered a discharge capacity of about 130 mA h g(-1) at the specific current of 13 mA g(-1) in the 1st cycle between 1.5 V and 4.3 V. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：13679 / 13682

页数：4

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