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Abstract <p>The objective of this research is to prepare a composite with lower cost and better cyclability than the other cathode materials in lithium-ion battery. A ternary composition with high efficiency and low cost containing LiFeO<sub>2</sub> and Li<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> (LVP), was applied instead of pure LiCoO<sub>2</sub> to reduce usage of a percentage Co amount, consequently reducing the cost of cobalt and removing its toxic effect in LIBs. In this study, we synthesized ten samples from mixture of <i>x</i>LiFeO<sub>2</sub>, <i>y</i>Li<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>, and (1&#xa0;–&#xa0;<i>x&#xa0;–&#xa0;y</i>)LiCoO<sub>2</sub> compounds for preparing a suitable cathode electrode with high initial discharge capacity, large cyclability and inexpensive cost instead of traditional cathode materials. As a result by using Raman analysis, X-ray diffraction, and electrochemical analyzing, we found that the Li<sub>1.67</sub>V<sub>0.67</sub> Fe<sub>0.33</sub> Co<sub>0.33</sub> [(PO<sub>4</sub>)<sub>3</sub>,O<sub>2</sub>] composites have high efficiency and best performance in viewpoint of initial capacity, cyclability, charge and discharge capacities among these ten composites.</p>

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Synthesis and Structural Characterization of a Novel Ternary Composite Containing xLiFeO2, yLi3V2(PO4)3, AND (1 – x – y)LiCoO2 Composites for Lithium-Ion Batteries (LIBs)

  • 期刊论文

  • 发表日期：

    2025年5月1日

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  • M. Monajjemi,
  • F. Mollaamin

摘要

Abstract

The objective of this research is to prepare a composite with lower cost and better cyclability than the other cathode materials in lithium-ion battery. A ternary composition with high efficiency and low cost containing LiFeO2 and Li3V2(PO4)3 (LVP), was applied instead of pure LiCoO2 to reduce usage of a percentage Co amount, consequently reducing the cost of cobalt and removing its toxic effect in LIBs. In this study, we synthesized ten samples from mixture of xLiFeO2, yLi3V2(PO4)3, and (1 – x – y)LiCoO2 compounds for preparing a suitable cathode electrode with high initial discharge capacity, large cyclability and inexpensive cost instead of traditional cathode materials. As a result by using Raman analysis, X-ray diffraction, and electrochemical analyzing, we found that the Li1.67V0.67 Fe0.33 Co0.33 [(PO4)3,O2] composites have high efficiency and best performance in viewpoint of initial capacity, cyclability, charge and discharge capacities among these ten composites.