无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2012, Vol. 44 ›› Issue (8): 57-.

• 论文 • 上一篇    下一篇

球磨对磷酸铁锂正极材料性能的影响

冯晓叁1,莫祥银1,俞琛捷1,金传伟2   

  1. 1南京师范大学分析测试中心,江苏南京210046; 2 南京工业大学材料科学与工程学院
  • 发布日期:2012-08-10

Effects of ball-milling on the preparation of LiFePO4 cathode material

Feng Xiaosan1,Mo Xiangyin1,Yu Chenjie1,Jin Chuanwei2   

  1. 1.Analysis and Testing Center,Nanjing Normal University,Nanjing 210046,China;
    2.School of Materials Science and Engineering, Nanjing University of Technology
  • Published:2012-08-10

摘要: 采用高温固相合成法制备锂离子正极材料磷酸铁锂,在合成过程中分别采用湿法球磨和干法球磨,讨论了球磨时间对合成磷酸铁锂电化学性能的影响。用扫描电镜对合成材料进行表征,并对磷酸铁锂正极材料进行电化学性能测试。结果表明,相对于干法球磨,湿法球磨制备的磷酸铁锂样品具有更好的电化学性能。湿法球磨10 h所得的材料电化学性能最好,0.1 C下首次放电比容量为114 mA·h/g。

关键词: 正极材料, 球磨, 磷酸铁锂

Abstract: LiFePO4 cathode material for lithium-ion batteries was synthesized by high temperature solid-state reaction with either wet ball-milling or dry ball-milling procedure.Effect of different ball-milling time on performance of the samples was discussed.Morphology of the cathode material and electrochemical performance were characterized by SEM and the electrochemical performance testing.Results indicated that the samples obtained from wet balling-milling for 10 h displayed the best discharge capacity.Its first specific discharge capacity was 114 mA·h/g at 0.1 C.

Key words: cathode material, balling-milling, lithium iron phosphate

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