Preparation and electrochemical properties of submicron spherical V2O5 as cathode material for lithium ion batteries

被引：31

作者：

Chen, Yu ^{[1
]}

Liu, Heng ^{[1
]}

Ye, Wang-Ling ^{[1
]}

机构：

[1] Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610065, Peoples R China

来源：

SCRIPTA MATERIALIA | 2008年 / 59卷 / 03期

基金：

中国国家自然科学基金;

关键词：

spherical V2O5; layered structures; electrochemical properties; lithium ion batteries;

D O I：

10.1016/j.scriptamat.2008.04.009

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Submicron spherical V2O5 particles were successfully prepared by decomposing the amorphous ammonium hypovanadate(IV) precursor synthesized by an aqueous precipitation technique. The crystal structure, morphology and electrochemical performance of the V2O5 particles were characterized by X-ray diffraction, scanning electron microscopy, galvanostatic cycling and cyclic voltammetry. These alpha-V2O5 particles with layered structure can deliver a high reversible capacity of 360 mAh g(-1) at 0.125 C and 202 mAh g(-1) at 0.5 C, and exhibit better cycle stability, while preserving a greatly improved internal space. (c) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：372 / 375

页数：4

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