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作者:

Wang Sui-Jun (Wang Sui-Jun.) | Zhao Yu-Juan (Zhao Yu-Juan.) | Zhao Chun-Song (Zhao Chun-Song.) | Xia Ding-Guo (Xia Ding-Guo.) (学者:夏定国)

收录:

SCIE PKU CSCD

摘要:

The Li-rich cathode materials Li[NixLi1/3-2x/3Mn2/3-x/3]O-2 (x = 1/5, 1/4, 1/3) were synthesized with co-precipitated metal hydroxide precursors M ( OH) (2) ( M = Mn, Ni). The results of X-ray diffraction ( XRD) and selected area electron diffraction( SAED) analysis confirmed the Li, Ni and Mn atoms are ordered in the M layer to form the superstrucutre. Images of scanning electron microscopy( SEM) show the Li-rich materials particles are about 1-3 mu m, aggregated of submicron grains. Electrochemical behavior was examined by charge-discharge cycling. The Li [ NixLi1/3-2x/3Mn2/3-x/3 ]O-2 (x = 1/5, 1/4, 1/3) materials exhibited high reversible capacity of 200-240 mA . h/g and excellent cycle performance between 2.0 and 4.8 V at 10 mA/g current density.

关键词:

Electrochemical behavior Layered structure Li-rich cathode material Lithium ion battery

作者机构:

  • [ 1 ] [Wang Sui-Jun]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Zhao Yu-Juan]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Zhao Chun-Song]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Xia Ding-Guo]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • 夏定国

    [Xia Ding-Guo]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China

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来源 :

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE

ISSN: 0251-0790

年份: 2009

期: 12

卷: 30

页码: 2358-2362

1 . 0 0 0

JCR@2022

ESI学科: CHEMISTRY;

JCR分区:3

中科院分区:1

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