Enhancement in thermal stability and surface properties of LiFePO4/VFLG composite prepared via sol-gel route
Thermal and surface properties of LiFePO4/very-few-layer graphene (LiFePO4/VFLG) composite manufactured through the sol-gel route have been researched for lithium-ion battery cathode application. VFLG was acquired from a facile, cost-effective, and environmentally benign fluid dynamic shear exfoliat...
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Komunitas Ilmuwan dan Profesional Muslim Indonesia
2025-07-01
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| Series: | Communications in Science and Technology |
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| Online Access: | https://cst.kipmi.or.id/journal/article/view/1667 |
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| author | Amun Amri Yola Bertilsya Hendri Sunarno Yoyok Dwi Setyo Pambudi Mazhibayev Assylzhan Kambarova Elmira Khusnul Ain Khairulazhar Jumbri Zhong Tao Jiang Chun-Chen Yang |
| author_facet | Amun Amri Yola Bertilsya Hendri Sunarno Yoyok Dwi Setyo Pambudi Mazhibayev Assylzhan Kambarova Elmira Khusnul Ain Khairulazhar Jumbri Zhong Tao Jiang Chun-Chen Yang |
| author_sort | Amun Amri |
| collection | DOAJ |
| description | Thermal and surface properties of LiFePO4/very-few-layer graphene (LiFePO4/VFLG) composite manufactured through the sol-gel route have been researched for lithium-ion battery cathode application. VFLG was acquired from a facile, cost-effective, and environmentally benign fluid dynamic shear exfoliation process. The composites were characterized through thermogravimetry analysis (TGA), differential scanning calorimetry (DSC), field-emission scanning electron microscopy (FESEM) interlinked with energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), and Braneur-Emmett-Teller (BET) analysis. The TGA-DSC results showed that the integration of VFLG could enhance the thermal stability of the composite by inhibiting oxygen diffusion on the LiFePO4 surface. FESEM-EDX analysis, meanwhile, confirmed the homogeneously distributed VFLG in the composites. TEM results revealed that the average particle sizes of the composites decreased by about 21.2% compared to the bare LiFePO4. TEM and HRTEM results confirmed an intimate contact between VFLG intimately and LiFePO4 particles via plane-to-point contact, contributing to the control and reduction of particle size. Furthermore, physisorption via BET analysis revealed that incorporating VFLG provided a wider distribution of mesopores and increased pore diameter and pore volume by 128.7% and 656.3%, respectively, compared to sole LiFePO4. These significant improvements were related to the flexibility and ability of a thin layer of VFLG to limit the growth of LiFePO4 particles. This approach offers a promising strategy to enhance the thermal stability and surface properties of lithium-ion battery cathodes. |
| format | Article |
| id | doaj-art-d9c6a2c6cd774c1dbb23d9b47cf1a1ef |
| institution | Kabale University |
| issn | 2502-9258 2502-9266 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Komunitas Ilmuwan dan Profesional Muslim Indonesia |
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| series | Communications in Science and Technology |
| spelling | doaj-art-d9c6a2c6cd774c1dbb23d9b47cf1a1ef2025-08-20T03:40:41ZengKomunitas Ilmuwan dan Profesional Muslim IndonesiaCommunications in Science and Technology2502-92582502-92662025-07-01101687410.21924/cst.10.1.2025.16671667Enhancement in thermal stability and surface properties of LiFePO4/VFLG composite prepared via sol-gel routeAmun Amri0Yola Bertilsya Hendri1Sunarno2Yoyok Dwi Setyo Pambudi3Mazhibayev Assylzhan4Kambarova Elmira5Khusnul Ain6Khairulazhar Jumbri7Zhong Tao Jiang8Chun-Chen Yang9Department of Chemical Engineering, University of Riau, Pekanbaru 28293, IndonesiaDepartment of Chemical Engineering, University of Riau, Pekanbaru 28293, IndonesiaDepartment of Chemical Engineering, University of Riau, Pekanbaru 28293, IndonesiaResearch Center for Nuclear Reactor Technology, BRIN, Tangerang Selatan 15314, IndonesiaDepartment of Chemistry, Taraz University named after M.Kh. Dulaty, 080000 Taraz, KazakhstanDepartment of Chemistry, Taraz University named after M.Kh. Dulaty, 080000 Taraz, KazakhstanDepartment of Biomedical Engineering, Universitas Airlangga, Surabaya 60115, IndonesiaDepartment of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, MalaysiaSurface Analysis and Materials Engineering Research Group, Murdoch University, WA 6150, AustraliaBattery Research Center of Green Energy, Ming Chi University of Technology, Taishan, New Taipei City 24301, TaiwanThermal and surface properties of LiFePO4/very-few-layer graphene (LiFePO4/VFLG) composite manufactured through the sol-gel route have been researched for lithium-ion battery cathode application. VFLG was acquired from a facile, cost-effective, and environmentally benign fluid dynamic shear exfoliation process. The composites were characterized through thermogravimetry analysis (TGA), differential scanning calorimetry (DSC), field-emission scanning electron microscopy (FESEM) interlinked with energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), and Braneur-Emmett-Teller (BET) analysis. The TGA-DSC results showed that the integration of VFLG could enhance the thermal stability of the composite by inhibiting oxygen diffusion on the LiFePO4 surface. FESEM-EDX analysis, meanwhile, confirmed the homogeneously distributed VFLG in the composites. TEM results revealed that the average particle sizes of the composites decreased by about 21.2% compared to the bare LiFePO4. TEM and HRTEM results confirmed an intimate contact between VFLG intimately and LiFePO4 particles via plane-to-point contact, contributing to the control and reduction of particle size. Furthermore, physisorption via BET analysis revealed that incorporating VFLG provided a wider distribution of mesopores and increased pore diameter and pore volume by 128.7% and 656.3%, respectively, compared to sole LiFePO4. These significant improvements were related to the flexibility and ability of a thin layer of VFLG to limit the growth of LiFePO4 particles. This approach offers a promising strategy to enhance the thermal stability and surface properties of lithium-ion battery cathodes.https://cst.kipmi.or.id/journal/article/view/1667sol-gel routelifepo4/vflg compositethermal stabilitysurface propertiespore distribution |
| spellingShingle | Amun Amri Yola Bertilsya Hendri Sunarno Yoyok Dwi Setyo Pambudi Mazhibayev Assylzhan Kambarova Elmira Khusnul Ain Khairulazhar Jumbri Zhong Tao Jiang Chun-Chen Yang Enhancement in thermal stability and surface properties of LiFePO4/VFLG composite prepared via sol-gel route Communications in Science and Technology sol-gel route lifepo4/vflg composite thermal stability surface properties pore distribution |
| title | Enhancement in thermal stability and surface properties of LiFePO4/VFLG composite prepared via sol-gel route |
| title_full | Enhancement in thermal stability and surface properties of LiFePO4/VFLG composite prepared via sol-gel route |
| title_fullStr | Enhancement in thermal stability and surface properties of LiFePO4/VFLG composite prepared via sol-gel route |
| title_full_unstemmed | Enhancement in thermal stability and surface properties of LiFePO4/VFLG composite prepared via sol-gel route |
| title_short | Enhancement in thermal stability and surface properties of LiFePO4/VFLG composite prepared via sol-gel route |
| title_sort | enhancement in thermal stability and surface properties of lifepo4 vflg composite prepared via sol gel route |
| topic | sol-gel route lifepo4/vflg composite thermal stability surface properties pore distribution |
| url | https://cst.kipmi.or.id/journal/article/view/1667 |
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