Characterization and electrochemical properties of high tap-density LiFePO 4/C cathode materials by a combination of carbothermal reduction and molten salt methods

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/100376

Title:	Characterization and electrochemical properties of high tap-density LiFePO 4/C cathode materials by a combination of carbothermal reduction and molten salt methods
Authors:	高憲明;Fey, George Ting-Kuo;Lin, Yi-Chuan;Kao, Hsien-Ming
Contributors:	理學院化學學系
Keywords:	Applied sciences;Carbon;Cathodes;Direct energy conversion and energy accumulation;Electrical engineering. Electrical power engineering;Electrical power engineering;Electrochemical analysis;Electrochemical conversion: primary and secondary batteries, fuel cells;Exact sciences and technology;Fused salts;Light scattering;Lithium iron phosphate cathode;Lithium-ion battery;Molten salt;Reduction;Scanning electron microscopy;Tap density;Unit cell;Volumetric energy density
Date:	2012-10-01
Issue Date:	2026-04-21 13:59:39 (UTC+8)
Publisher:	Elsevier Ltd.;Kidlington: Elsevier Ltd
Abstract:	摘要： Olivine-structured LiFePO4 cathode materials were prepared via a combination of carbothermal reduction (CR) and molten salt (MS) methods. To enhance the powder's tap density, the LiFePO4/C composite was pressed into pellets and then sintered for at least 1h at 1028K in the reaction environment of KCl molten salts. The use of molten salt can effectively influence unit cell volume, morphology and tap density of particles, and consequently change the electrochemical performance of LiFePO4/C. The composites were characterized in detail by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), dynamic light scattering (DLS), Raman spectroscopy and tap density testing. The final product with high tap density of 1.50gcm−3 contains 4.58wt% carbon and exhibits good discharge capacity of 141mAhg−1 at a 0.2C-rate in the potential range of 2.8–4.0V. 出版者： Kidlington: Elsevier Ltd 出版日期： 2012-10-01 出處： Electrochimica Acta, 2012-10, Vol.80, p.41-49 版權： 2012 Elsevier Ltd 版權： 2014 INIST-CNRS 識別號： ISSN: 0013-4686 識別號： EISSN: 1873-3859 識別號： DOI: 10.1016/j.electacta.2012.06.125 識別號： CODEN: ELCAAV
Appears in Collections:	[Department of Chemistry] journal & Dissertation

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