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不同烧结条件下纳米球形LiFePO_4材料的性能研究 被引量：4

The Effect of Sintering Time on the Performance of Spherical and Nano-sized LiFePO_4 Cathode Material
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摘要 应用液相共沉淀-碳热还原法，合成纳米尺寸球形LiFePO4材料，并研究烧结时间对该材料性能的影响．XRD、SEM、TEM及充放电循环测试表明，烧结时间为10h，LiFePO4的球形度较好，颗粒尺寸：50—100nm．0．1C放电，初始容量为154．6mAh／g，且具有良好的循环性能． The spherical LiFePO4 with nano-size is expected as an important direction for LiFePO4 cathode material. With the method of liquid co-deposited-carbonthermal reduction, we prepared spherical LiFePO4 cathode material with nano-size and we put our emphasis on the effect of sintering time on the material. By XRD, SEM, TEM and charge ＆ discharge analysis, we found the sample sintered at 550 ℃ for 10 hours showed the best electrochemical properties and good degree of sphericity, with the size of 40 - 100 nm.
作者 单忠强 王国增 田地 田建华
机构地区 天津大学化工学院应用化学系
出处 《电化学》 CAS CSCD 北大核心 2009年第1期34-37,共4页 Journal of Electrochemistry
基金 国家973计划项目(2002CB211800)资助
关键词 磷酸铁锂 球形 纳米尺寸 烧结时间 lithium iron phosphate spherical nano-size sintering time
分类号 TM912.9 [电气工程—电力电子与电力传动]
  • 相关文献

参考文献12

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二级参考文献58

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共引文献19

同被引文献65

  • 1李发喜,仇卫华,胡环宇,赵海雷.微波合成锂电池正极材料LiFePO_4电化学性能[J].电源技术,2005,29(6):346-348. 被引量：16
  • 2郑洪河,石磊,赵扬,徐仲榆.锂离子电池纳米正极材料[J].化学通报,2005,68(8):591-600. 被引量：10
  • 3陈学军,赵新兵,曹高劭,马胜林,谢健,朱铁军.一步固相合成Nb掺杂LiFePO_4/C及其电化学性能[J].中国有色金属学报,2006,16(10):1665-1671. 被引量：25
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引证文献4

二级引证文献20

电化学
2009年 第1期

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