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author:

李荣华 (李荣华.) [1] | 李敏 (李敏.) [2]

Indexed by:

CQVIP

Abstract:

通过溶胶凝胶法制备了锂锰氧化物LiCuxMn2-xO4-xBrx正极材料,采用XRD、SEM等方法对其进行了表征,并测试了样品的电化学性能.结果表明:合成的LiCuxMn2-xO4-xBr样品为尖晶石结构,粒径均匀.随着掺杂量的增加,晶胞参数减小;一定量的Cu2+和Br-复合改性增加了尖晶石结构的稳定性,改善了材料的循环性能.实验发现当掺杂量为x=0.03时循环性能最好,初始比容量为97.5 mAh/g,50次循环后比容量为82.1 mAh/g.

Keyword:

LiMn2O4 复合改性 尖晶石 正极材料 锂离子电池

Community:

  • [ 1 ] [李荣华]福州大学
  • [ 2 ] [李敏]福州大学

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Source :

化学研究

ISSN: 1008-1011

CN: 41-1083/O6

Year: 2008

Issue: 4

Volume: 19

Page: 81-84

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: -1

Chinese Cited Count:

30 Days PV: 10

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