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author:

陈宇 (陈宇.) [1] | 何锋 (何锋.) [2] | 张玉荣 (张玉荣.) [3] (Scholars:张玉荣)

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Abstract:

采用共沉淀法及溶胶-凝胶法合成了锂离子电池的阴极材料LiZnxNi0.5-xMn1.5O4 (0.01≤x≤0.09) .结构研究结果表明用这些方法可以在比固相反应低得多的温度下得到单相的尖晶石.Li/LiZnxNi0.5-xMn1.5O4半电池在1mol/L LiPF6/EC+DEC+DMC(1:1:1)中于2.8~4.9V间进行充放电测试的结果表明充放电平台仅出现在4.7V附近,因此在充放电过程中仅发生Ni2+Ni4+的价态变化,该半电池以0.05mA/cm2的电流密度进行充放电的首次充电比容量高达理论值并随着x值的增大而减小,测试结果还表明合成方法及热处理过程对材料的性能有决定性的影响.

Keyword:

共沉淀 尖晶石 溶胶-凝胶 锂离子电池 阴极材料

Community:

  • [ 1 ] [陈宇]福州大学
  • [ 2 ] [何锋]福州大学
  • [ 3 ] [张玉荣]福州大学

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功能材料

ISSN: 1001-9731

CN: 50-1099/TH

Year: 2006

Issue: 4

Volume: 37

Page: 653-657

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 6

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