Morphology and electrochemical properties of Al doped LiNi1/3Co1/3Mn1/3O2 nanofibers prepared by electrospinning

被引：58

作者：

Ding, Yanhuai ^{[1
,2
]}

Zhang, Ping ^{[1
,2
]}

Long, Zhilin ^{[1
,2
]}

Jiang, Yong ^{[1
,2
]}

Xu, Fu ^{[1
,2
]}

机构：

[1] Xiangtan Univ, Coll Civil Engn & Mech, Xiangtan 411105, Hunan, Peoples R China

[2] Xiangtan Univ, Inst Fundamental Mech & Mat Engn, Xiangtan 411105, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 487卷 / 1-2期

关键词：

Nanostructures; Electrode materials; X-ray diffraction; Electrochemical reactions; LITHIUM-ION BATTERIES; ULTRASONIC SPRAY-PYROLYSIS; CATHODE MATERIALS; STRUCTURAL-CHARACTERIZATION; LINI1/3MN1/3CO1/3O2; COPRECIPITATION; PERFORMANCE;

D O I：

10.1016/j.jallcom.2009.08.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, Al doped cathode materials with the formula LiNi1/3Co1/3Mn1/3-xAlxO2 (0 <= x <= 0.08),. have been prepared successfully from sol-gel precursors by using electrospun method The morphological features of the nanofibers were characterized by atomic force microscopy (AFM). The average diameter of the uniform LiNi1/3Co1/3 Mn1/3-xAlxO2 nanofibers was less than 100 nm. The effect of Al substitution on the crystal structure and electrochemical properties of LiNi1/3Co1/3Mn1/3O2 were studied systematically by X-ray diffraction (XRD) and various electrochemical measurements. The results showed AI substitution played an important role in the superior reversible capacity and good cycling performance of LiNi1/3Co1/3Mn1/3O2. The LiNi1/3Co1/3Mn1/3-0.06Al0.06O2 nanofibers showed a first discharge capacity of 186.59 mAh g(-1) with the capacity retention of 96.1% after 30 cycles. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：507 / 510

页数：4

共 26 条

[1] Effect of synthesis condition on the structural and electrochemical properties of Li[Ni1/3Mn1/3Co1/3]O2 prepared by carbonate co-precipitation method [J].