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溶胶-凝胶法制备高性能锂离子电池正极材料LiNi0.5Mn1.5O4

Preparation of LiNi0.5Mn1.5O4 Cathode for Lithium-Ion Batteries via a Sol-gel Method

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【作者】 王利娟; 唐致远;

【Author】 Wang Lijuan;Tang Zhiyuan;College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University;School of Chemical Engineering and Technology, Tianjin University;

【机构】 南阳师范学院化学与制药工程学院; 天津大学化工学院;

【摘要】 采用溶胶-凝胶法制备了锂离子电池正极材料LiNi0.5Mn1.5O5,重点探索了溶液p H对材料物理和电化学性能的影响。其中pH=6.0时制备的材料具有最高的放电比容量、最好的倍率和循环性能。在3 C充放电电流下材料的最高放电比容量为104.2 m Ah·g-1,循环200次的放电比容量为95.1 mAh·g-1。

【Abstract】 LiNi0.5Mn1.5O4 cathode materials for lithium-ion batteries have been synthesized via a sole-gel method. The effects of p H values on the physical and electrochemical performance for LiNi0.5Mn1.5O4 have been researched. The LiNi0.5Mn1.5O4 synthesized at pH=6.0 has the highest discharge specific capacity, the best rate capability and cycling performance. The highest specific capacity of 104.2 m Ah·g-1 is delivered and 95.1 mAh·g-1 is still kept at 3 C for the 200 th cycle.

【基金】 河南省科技厅重点科技公关项目;编号:152102210337
  • 【文献出处】 广东化工 ,Guangdong Chemical Industry , 编辑部邮箱 ,2016年09期
  • 【分类号】O611.4;TM912
  • 【被引频次】1
  • 【下载频次】248
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