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Systematic investigation on Cadmium-incorporation in Li2FeSiO4/C cathode material for lithium-ion batteries
Zhang, LL; Duan, S; Yang, XL; Liang, G; Huang, YH; Cao, XZ; Yang, J; Ni, SB; Li, M;曹兴忠; Yang J(杨静)
2014
发表期刊SCIENTIFIC REPORTS
卷号4页码:5064
摘要Cadmium-incorporated Li2FeSiO4/C composites have been successfully synthesized by a solid-state reaction assisted with refluxing. The effect and mechanism of Cd-modification on the electrochemical performance of Li2FeSiO4/C were investigated in detail by X-ray powder diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, Raman spectra, transmission electron microscopy, positron annihilation lifetime spectroscopy and Doppler broadening spectrum, and electrochemical measurements. The results show that Cd not only exists in an amorphous state of CdO on the surface of LFS particles, but also enters into the crystal lattice of LFS. Positron annihilation lifetime spectroscopy and Doppler broadening spectrum analyses verify that Cd-incorporation increases the defect concentration and the electronic conductivity of LFS, thus improve the Li+-ion diffusion process. Furthermore, our electrochemical measurements verify that an appropriate amount of Cd-incorporation can achieve a satisfied electrochemical performance for LFS/C cathode material.
学科领域Science & Technology - Other Topics
DOI10.1038/srep05064
收录类别SCI
WOS记录号WOS:000336364500006
引用统计
被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225369
专题多学科研究中心
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GB/T 7714
Zhang, LL,Duan, S,Yang, XL,et al. Systematic investigation on Cadmium-incorporation in Li2FeSiO4/C cathode material for lithium-ion batteries[J]. SCIENTIFIC REPORTS,2014,4:5064.
APA Zhang, LL.,Duan, S.,Yang, XL.,Liang, G.,Huang, YH.,...&杨静.(2014).Systematic investigation on Cadmium-incorporation in Li2FeSiO4/C cathode material for lithium-ion batteries.SCIENTIFIC REPORTS,4,5064.
MLA Zhang, LL,et al."Systematic investigation on Cadmium-incorporation in Li2FeSiO4/C cathode material for lithium-ion batteries".SCIENTIFIC REPORTS 4(2014):5064.
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