Synthesis and electrochemical performance of spherical FeF3/ACMB composite as cathode material for lithium-ion batteries

被引：40

作者：

Liu, Li ^{[1
,2
]}

Zhou, Meng ^{[1
]}

Wang, Xingyan ^{[1
]}

Yang, Zhenhua ^{[1
,2
]}

Tian, Fanghua ^{[1
]}

Wang, Xianyou ^{[1
]}

机构：

[1] Xiangtan Univ, Minist Educ, Sch Chem, Key Lab Environm Friendly Chem & Applicat, Xiangtan 411105, Peoples R China

[2] Xiangtan Univ, Fac Mat Optoelect & Phys, Xiangtan 411105, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2012年 / 47卷 / 04期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

METAL FLUORIDE NANOCOMPOSITES;

D O I：

10.1007/s10853-011-5968-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To improve the rate capability and cyclability of FeF3 cathode for Li-ion batteries, FeF3 has been modified by forming FeF3/activated carbon microbead (ACMB) composite. The FeF3/ACMB composite is successfully achieved via a simple chemical route. The morphology and structural properties of the samples are investigated by X-ray diffraction and scanning electron microscopy (SEM). SEM observations demonstrate that FeF3/ACMB composite has a distinct spherical morphology. Electrochemical tests show that the FeF3/ACMB composite cathode has higher capacity, better cycleability, and better rate capability than pristine FeF3. Electrochemical impedance spectra indicate that the FeF3/ACMB composite electrode has low electrochemical resistance compared with pristine FeF3, indicating the enhanced conductivity of the FeF3/ACMB composite.

引用

页码：1819 / 1824

页数：6

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