Synthesis and characterization of lithium transition orthosilicates Li2FexMn1-xSiO4 as cathode material
Recently, lithium metal orthosilicates Li2FeSiO4 and Li2MnSiO4 are attracted attention as a cathode material for Li-ion batteries. Here, Li2FexMn1-xSiO4 (x = 0.3, 0.5, 0.7) cathode materials are synthesized by using sol-gel method, and physically characterized via X-ray diffraction (XRD), Field emis...
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Elsevier
2025-06-01
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| author | Ritesh Kumar A.L. Sharma R.K. Singh Arvind Kumar Pramod K. Singh M.Z.A. Yahya S.N.F. Yusuf Markus Diantoro Manoj K. Singh |
| author_facet | Ritesh Kumar A.L. Sharma R.K. Singh Arvind Kumar Pramod K. Singh M.Z.A. Yahya S.N.F. Yusuf Markus Diantoro Manoj K. Singh |
| author_sort | Ritesh Kumar |
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| description | Recently, lithium metal orthosilicates Li2FeSiO4 and Li2MnSiO4 are attracted attention as a cathode material for Li-ion batteries. Here, Li2FexMn1-xSiO4 (x = 0.3, 0.5, 0.7) cathode materials are synthesized by using sol-gel method, and physically characterized via X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), and Energy dispersive X-ray (EDX). The FESEM images confirm the cubical shape particles in nanometers scale. The EDX mapping indicates the presence of iron, manganese, and silicates in different samples. The Li-ion batteries are assembled with gel polymer electrolyte PVdF-HFP/LiClO4/EC-PC, and Li2FexMn1-xSiO4 (x=0.3, 0.5, 0.7) cathode and graphite anode. The assembled cells are electrochemically characterized by cyclic voltammetry (CV), and galvanostatic charge-discharge (GCD) techniques. It is observed that the oxidation and reduction peaks of the cells shifted as scan rate increases which indicate the charge transfers are diffusion controlled at the interface. The cell Li2Fe0.5Mn0.5SiO4//graphite offers highest discharge capacity∼220 mAh g-1 at 1 mA cm-2. |
| format | Article |
| id | doaj-art-2eca49859d1f4da09f72db07ec22230d |
| institution | Kabale University |
| issn | 2667-0224 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemical Physics Impact |
| spelling | doaj-art-2eca49859d1f4da09f72db07ec22230d2025-01-12T05:26:12ZengElsevierChemical Physics Impact2667-02242025-06-0110100814Synthesis and characterization of lithium transition orthosilicates Li2FexMn1-xSiO4 as cathode materialRitesh Kumar0A.L. Sharma1R.K. Singh2Arvind Kumar3Pramod K. Singh4M.Z.A. Yahya5S.N.F. Yusuf6Markus Diantoro7Manoj K. Singh8Department of Physics and Astronomical Science, Central university of Himachal Pradesh, Himachal Pradesh, 176215, IndiaDepartment of Physics, Central University of Punjab, Punjab, 151401, India; Corresponding authors.Department of Physics and Astronomical Science, Central university of Himachal Pradesh, Himachal Pradesh, 176215, IndiaDepartment of Physics, University of Allahabad, Prayagraj, Uttar Pradesh, 211002, IndiaCenter for Solar-cells and Renewable Energy (CSRE), Department of Physics, SSBSR, Sharda University, Greater Noida, 201310, India; Corresponding authors.Faculty of Defence Science and Technology, Universiti Pertahanan Nasional Malaysia (UPNM), 57000, Kuala Lumpur, MalaysiaCenter for Ionics University of Malaya, Department of Physics, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, MalaysiaDepartment of Physics, Faculty of Mathematics and Natural Science, Universitas Negeri Malang, Semarang 5, Malang, 65145, IndonesiaEnergy Conversion & Storage Lab, Department of Applied Science & Humanities, Rajkiya Engineering College Banda, AKTU, Uttar Pradesh, 210201, India; Corresponding authors.Recently, lithium metal orthosilicates Li2FeSiO4 and Li2MnSiO4 are attracted attention as a cathode material for Li-ion batteries. Here, Li2FexMn1-xSiO4 (x = 0.3, 0.5, 0.7) cathode materials are synthesized by using sol-gel method, and physically characterized via X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), and Energy dispersive X-ray (EDX). The FESEM images confirm the cubical shape particles in nanometers scale. The EDX mapping indicates the presence of iron, manganese, and silicates in different samples. The Li-ion batteries are assembled with gel polymer electrolyte PVdF-HFP/LiClO4/EC-PC, and Li2FexMn1-xSiO4 (x=0.3, 0.5, 0.7) cathode and graphite anode. The assembled cells are electrochemically characterized by cyclic voltammetry (CV), and galvanostatic charge-discharge (GCD) techniques. It is observed that the oxidation and reduction peaks of the cells shifted as scan rate increases which indicate the charge transfers are diffusion controlled at the interface. The cell Li2Fe0.5Mn0.5SiO4//graphite offers highest discharge capacity∼220 mAh g-1 at 1 mA cm-2.http://www.sciencedirect.com/science/article/pii/S2667022425000027Li-ion batterySol-gel methodLithium iron orthosilicatesCyclic voltammetry |
| spellingShingle | Ritesh Kumar A.L. Sharma R.K. Singh Arvind Kumar Pramod K. Singh M.Z.A. Yahya S.N.F. Yusuf Markus Diantoro Manoj K. Singh Synthesis and characterization of lithium transition orthosilicates Li2FexMn1-xSiO4 as cathode material Chemical Physics Impact Li-ion battery Sol-gel method Lithium iron orthosilicates Cyclic voltammetry |
| title | Synthesis and characterization of lithium transition orthosilicates Li2FexMn1-xSiO4 as cathode material |
| title_full | Synthesis and characterization of lithium transition orthosilicates Li2FexMn1-xSiO4 as cathode material |
| title_fullStr | Synthesis and characterization of lithium transition orthosilicates Li2FexMn1-xSiO4 as cathode material |
| title_full_unstemmed | Synthesis and characterization of lithium transition orthosilicates Li2FexMn1-xSiO4 as cathode material |
| title_short | Synthesis and characterization of lithium transition orthosilicates Li2FexMn1-xSiO4 as cathode material |
| title_sort | synthesis and characterization of lithium transition orthosilicates li2fexmn1 xsio4 as cathode material |
| topic | Li-ion battery Sol-gel method Lithium iron orthosilicates Cyclic voltammetry |
| url | http://www.sciencedirect.com/science/article/pii/S2667022425000027 |
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