高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (4): 497.

• 论文 •    下一篇

锂电池阴极材料Li(CoxAl1-x)O2的溶胶-凝胶法合成及表征

史延慧1, 郝万君2, 陈岗2, 冯守华1   

  1. 1. 教育部无机合成与制备化学开放研究实验室, 吉林大学化学系;
    2. 吉林大学材料科学系, 长春 130023
  • 收稿日期:1999-05-26 出版日期:2000-04-24 发布日期:2000-04-24
  • 通讯作者: 冯守华(1956年出生),男,博士,教授,博士生导师,主要从事复合氧化物快离子导体、复合氟化物的水热合成,配位高分子及无机有机杂化固体的设计与合成等研究工作.
  • 基金资助:

    国家自然科学基金(批准号:19774028)

Sol-Gel Synthesis and Characterization of Cathode Materials Li(Cox Al1-x)O2 for Lithium Battery

SHI Yan-Hui1, HAO Wan-Jun2, CHEN Gang2, FENG Shou-Hua1   

  1. 1. Key Laboratoryof Inorganic Synthesisand Preparative Chemistryof Education Ministry, Departmentof Chemistry;
    2. Departmentof Material Science, Jilin University, Changchun 130023, China
  • Received:1999-05-26 Online:2000-04-24 Published:2000-04-24

PDF (PC)

摘要： 采用溶胶-凝胶方法合成了锂二次电池阴极材料Li(CoxAl1-x)O2,并采用XRD方法分析了材料的相变过程、烧结时间对材料合成的影响及不同Al/Co比掺杂对材料相变的影响,并进行了结构表征.研究表明,材料结构随Al固溶度的增大及温度的升高呈现出a轴缩短,c轴伸长的趋势.材料晶相稳定温度在600～900℃之间,烧结时间在3h以上.

关键词: 锂电池, 阴极材料, 溶胶-凝胶, 合成, X射线衍射, 相行为

Abstract: The cathode material for lithium batteries Li(Cox Al1-x )O2 has been synthesized by sol gel technique. The effects of sintering temperature, sintering time and the molar ratio of Al and Co on the phase behavior of material was investigated via X-ray diffraction. It is shown that the suitable synthetic and processing condition is that the sintering temperature is in the range of 600—900 ℃ and the sintering time is over 3 h.

Key words: Li battery, Cathode material, Sol-gel method, Synthesis, X-ray diffraction, Phase behavior

中图分类号: 

TrendMD: