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研究论文

煅烧温度对锂离子正极材料Li[Ni_(0.475)Mn_(0.475)Co_(0.05)]O_2结构和电化学性能的影响

  • 王丽琴 ,
  • 焦丽芳 ,
  • 袁华堂
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  • 南开大学新能源材料化学研究所,南开大学新能源材料化学研究所,南开大学新能源材料化学研究所,南开大学新能源材料化学研究所 天津300071,天津300071,天津300071,天津300071

收稿日期: 2006-08-28

  修回日期: 2006-08-28

  网络出版日期: 2006-08-28

Calcined Temperatures Influence on Synthesis and Electrochemistry Charactarization of Li[Ni_(0.475)Mn_(0.475)Co_(0.05)]O_(2) for Li-ion Batteries

  • WANG Li-qin ,
  • JIAO Li-fang ,
  • YUAN Hua-tang~
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  • (*),WANG Yong-mei(Institute of New Energy Material Chemistry,Nankai University,Tianjin 300071,China

Received date: 2006-08-28

  Revised date: 2006-08-28

  Online published: 2006-08-28

摘要

应用高温固相合成法制备L i[N i0.475Mn0.475Co0.05]O2.XRD,SEM,循环伏安及充放电容量测试表明,在800℃下煅烧合成的样品具有较高的嵌锂容量和良好的循环稳定性,如在20 mA/g和2.3~4.6 V的电压范围内,其首次放电比容量为178.8 mAh/g,循环30周后放电比容量仍能达到150.2 mAh/g,容量损失16.0%.

本文引用格式

王丽琴 , 焦丽芳 , 袁华堂 . 煅烧温度对锂离子正极材料Li[Ni_(0.475)Mn_(0.475)Co_(0.05)]O_2结构和电化学性能的影响[J]. 电化学, 2006 , 12(3) : 275 -278 . DOI: 10.61558/2993-074X.1736

Abstract

Layered Li[Ni_(0.475)Mn_(0.475)Co_(0.05)]O_(2) materials have been prepared by a solid-state pyrolysis method.Experiments of XRD,SEM,cyclic voltammetry and charge/discharge cycling were carried out.It can be learned that when calclined at 800 ℃,the sample showed the highest first discharge capacity of 178.8 mAh·g~(-1) at a current density of 20 mA/g in the voltage range 2.3~4.6 V.
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