Journal of Iranian Ceramic Society
Volume 20, Issue 3 (11-2024)
Jicers 2024, 20(3): 0-0 |
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Hashemi B, Ostovar S. Synthesis of LiFePO4/C by co-precipitation method and investigation of its structural and electrochemical properties. Jicers 2024; 20 (3)
URL: http://jicers.ir/article-1-527-en.html
URL: http://jicers.ir/article-1-527-en.html
Shiraz University , hashemib@shirazu.ac.ir
Abstract: (19 Views)
In this research, the effect of the type of raw materials and the influencing parameters on the synthesis process of LiFePO4 (LFP) powder was initially investigated by the co-precipitation method. Then, the effect of adding carbon powder and glucose to LFP powder in different ways as a carbon source for the synthesis of LiFePO4/C composite and their effect on the electrochemical properties of the resulting composite was investigated To characterize the synthesized powders, XRD analysis and SEM images were used to investigate the phase and morphology, respectively, and cyclic voltammetry, battery capacity, and impedance tests were used to investigate the electrochemical behavior of the powders
The results of X-ray diffraction analysis showed that lithium hydroxide LiOH and pH of about 10 is suitable for the formation of iron diphosphate and lithium phosphate deposits. The results of SEM images showed that LFP particles have a spherical and flower-like morphology. The results of the electrochemical tests showed that adding a suitable percentage of carbon (10%wt) to the raw LFP material improves the electrical conductivity, increases the reversibility of lithium ions, reduces the charge transfer resistance between the cathode and the electrolyte, and also increases the battery capacity.
The results of X-ray diffraction analysis showed that lithium hydroxide LiOH and pH of about 10 is suitable for the formation of iron diphosphate and lithium phosphate deposits. The results of SEM images showed that LFP particles have a spherical and flower-like morphology. The results of the electrochemical tests showed that adding a suitable percentage of carbon (10%wt) to the raw LFP material improves the electrical conductivity, increases the reversibility of lithium ions, reduces the charge transfer resistance between the cathode and the electrolyte, and also increases the battery capacity.
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