|本期目录/Table of Contents|

[1]徐宝和,吴甜甜,钟盛文,等.Si4+掺杂对富锂Li[Li0.15Mn0.575Ni0.275]1-xSixO2材料性能的影响[J].有色金属科学与工程,2012,(02):24.
　XU Bao-he,WU Tian-tian,ZHONG Sheng-wen,et al.Comparative study of Si-doped Li[Li0.15Mn0.575Ni0.275]1-xSixO2 prepared by ion exchange[J].,2012,(02):24.
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《有色金属科学与工程》[ISSN:1674-9669/CN:36-1311/TF]

卷:
期数:
2012年02期
页码:
24
栏目:
出版日期:
2012-04-30

文章信息/Info

Title:
Comparative study of Si-doped Li[Li0.15Mn0.575Ni0.275]1-xSixO2 prepared by ion exchange
作者:
徐宝和; 　吴甜甜; 　钟盛文; 　张　骞
江西理工大学材料与化学工程学院，江西 赣州 341000
Author(s):
XU Bao-he;  WU Tian-tian;  ZHONG Sheng-wen;  ZHANG Qian
School of Material Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
关键词:
锂离子电池; Li[Li0.15Mn0.575Ni0.275]1-xSixO2; 掺杂; 电化学性能
分类号:
TF122.3；TM911
DOI:
-
文献标志码:
A
摘要:
利用共沉淀合成的锰镍氢氧化物前躯体，采用Si掺杂合成Li[Li0.15Mn0.575Ni0.275]1-xSixO2（0≤x≤4 %）正 极材料.用X射线衍射和扫描电镜对合成的粉末样品进行了表征，研究了材料的电化学性能.通过掺杂样品的晶胞参数及电 化学性能研究发现：少量的Si4+掺杂可有效提高材料的循环性能；随掺杂量的增大，晶格畸变增大，半高宽变大；其中掺 量x=1 %的材料电化学性能最佳，4.2 V首次放电容量为146.7 mAh/g，经200次循环放电容量仍保持在135.7 mAh/g，容量 保持率为92 %.

参考文献/References:

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2012-04-30