Journal
JOURNAL OF ELECTROCHEMICAL SCIENCE AND TECHNOLOGY
Volume 3, Issue 4, Pages 172-177Publisher
KOREAN ELECTROCHEMISTRY SOC
DOI: 10.5229/JECST.2012.3.4.172
Keywords
Co-precipitation; Doping; Electrochemical properties; Lithium- ion Battery; Olivine
Categories
Funding
- National Research Foundation of Korea (NRF) - Korea government (MEST) [2009-0092780]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Korea government Ministry of Knowledge Economy [20104010100560]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20104010100560] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Mo-doped LiFePO4 was synthesized via co-precipitation method using sucrose as the carbon source. Structure, surface morphology, and the electrochemical properties of the synthesized olivine compounds were investigated using Rietveld refinement of X-ray diffraction data (XRD), scanning electron microscopy (SEM), and electrochemical charge-ischarge tests. Spherical morphology with the particle size of similar to 8 mu m authenticated the enhanced tap density and volumetric energy density of the synthesized materials. Charge-discharge behavior of LiFePO4 and Mo-doped LiFePO4 cells demonstrated a specific capacity of 130 and 145 mAh g(-1), respectively. Mo-doped LiFePO4 cells exhibited an excellent discharge capacity at 96 mAh g(-1) at 7 C-rate.
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