Li2FeSiO4/C正极材料的固相合成及电化学性能

doi:10.13208/j.electrochem.130352

电化学（中英文） ›› 2013, Vol. 19 ›› Issue (6): 575-578. doi: 10.13208/j.electrochem.130352

• 锂离子电池近期研究专辑 (厦门大学杨勇教授主编) • 上一篇下一篇

Li₂FeSiO₄/C正极材料的固相合成及电化学性能

孙姣丽¹，陈志娇¹，李益孝²，程琥^1*

1. 贵州师范大学化学与材料科学学院，贵州贵阳 550001；2. 厦门大学化学化工学院化学系，福建厦门 361005

收稿日期:2013-03-05 修回日期:2013-05-27 出版日期:2013-12-28 发布日期:2013-12-23
通讯作者: 程琥 E-mail:chenghu8802@163.com
基金资助:
贵州省重大专项（黔科合重大专项字[2011]6015）及贵州省科学技术基金（黔科合J字[2012]2284）资助

Synthesis and Electrochemical Property of Li₂FeSiO₄/C Cathode Material by Solid State Method

SUN Jiao-li¹, CHEN Zhi-jiao¹, LI Yi-xiao², CHENG Hu^1*

1. School of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001, Guizhou, China; 2. College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China

Received:2013-03-05 Revised:2013-05-27 Published:2013-12-28 Online:2013-12-23
Contact: CHENG Hu E-mail:chenghu8802@163.com

摘要/Abstract

摘要： 以偏硅酸锂、草酸亚铁为原料，通过机械球磨-固相烧结法制得了Li₂FeSiO₄/C正极材料. 用X射线衍射（XRD）和扫描电子显微镜（SEM）表征观察材料的结构和形貌.恒流充放电测试电极电化学性能. 结果表明，30 oC下，1.5 V ～ 4.8 V电位范围，于10 mAg^-1电流密度恒流充放电测试，Li₂FeSiO₄/C电极首次放电容量达167 mAhg^-1，有良好的电化学性能.

关键词: Li2FeSiO4, 正极材料, 锂离子电池

Abstract: Li2FeSiO4/C cathode material was synthesized using Li₂SiO₃ and FeC₂O₄ as raw materials by solid state method. The structure and morphology of the material were characterized by XRD and SEM. The electrochemical properties of the material were studied by constant-current cyclic testing. The results show that Li₂FeSiO₄/C has a good electrochemical performance. The first discharge capacity of Li₂FeSiO₄/C cathode material at 30oC reached 167 mAhg^-1 when cycled at 10 mAg^-1 between 1.5 and 4.8 V.

Key words: Li2FeSiO4, cathode material, lithium ion battery

中图分类号:

O646.54

孙姣丽，陈志娇，李益孝，程琥*. Li₂FeSiO₄/C正极材料的固相合成及电化学性能[J]. 电化学（中英文）, 2013, 19(6): 575-578.

SUN Jiao-li, CHEN Zhi-jiao, LI Yi-xiao, CHENG Hu*. Synthesis and Electrochemical Property of Li₂FeSiO₄/C Cathode Material by Solid State Method[J]. Journal of Electrochemistry, 2013, 19(6): 575-578.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.13208/j.electrochem.130352

https://electrochem.xmu.edu.cn/CN/Y2013/V19/I6/575

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Li₂FeSiO₄/C正极材料的固相合成及电化学性能

Synthesis and Electrochemical Property of Li₂FeSiO₄/C Cathode Material by Solid State Method

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