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一种合成锂离子电池正极材料LiNi1/3Co1/3Mn1/3O2的新方法

闫芳 叶乃清 田华 钟卓洪

电源技术2012,Vol.36Issue(1):49-51,78,4.
电源技术2012,Vol.36Issue(1):49-51,78,4.

一种合成锂离子电池正极材料LiNi1/3Co1/3Mn1/3O2的新方法

A novel synthesis method of cathode material LiNi1/3Co1/3Mn1/3O2 for Li-ion batteries

闫芳 1叶乃清 1田华 1钟卓洪1

作者信息

  • 1. 桂林理工大学材料科学与工程学院有色金属及材料加工新技术教育部重点实验室,广西桂林541004
  • 折叠

摘要

Abstract

The LiNi1/3CO1/3Mn1/3O2 cathode material was synthesized in air by co-precipitation-combustion process using LiNO3, Ni(CH3COO)2·4 H2O, Co(CH3COO)2·4 H2O and Mn(CH3COO)2·4 H2D as starting materials. Its composition, morphology, structure and performances were characterized by atomic absorption spectroscopy (AAS), scanning electron microscope (SEM), X-ray diffraction (XRD) and charge/discharge test instrument respectively. The experimental results indicate that the synthesized LiNil/3Col/3Mn1/302 cathode material is well-crystallized with quite moderate and homogeneous particles; it has a-NaFeO2 layered and orderly structure and excellent electrochemical performance. When it discharges between 2.5-4.35 V, its discharge specific capacity is up to 169.05 mAh/g at first cycle, and retains 152.83 mAh/g at the 50th cycle. Under deep charge state, its structure changes less.

关键词

锂离子电池/正极材料/LjNi1/3Co1/3Mn1/3O2/共沉淀-燃烧法

Key words

Li-ion battery/cathode material/LiNi1/3Co1/3Mn1/3O2. Co-precipitation-combustion synthesis

分类

信息技术与安全科学

引用本文复制引用

闫芳,叶乃清,田华,钟卓洪..一种合成锂离子电池正极材料LiNi1/3Co1/3Mn1/3O2的新方法[J].电源技术,2012,36(1):49-51,78,4.

基金项目

广西自然科学基金项目(桂科自0832256) (桂科自0832256)

电源技术

OA北大核心CSCDCSTPCD

1002-087X

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