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Journal article
Enhancement in thermal stability and surface properties of LiFePO4/VFLG composite prepared via sol-gel route
Communications in science and technology, Vol.10(1), pp.68-74
2025
Abstract
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.
Details
- Title
- Enhancement in thermal stability and surface properties of LiFePO4/VFLG composite prepared via sol-gel route
- Authors/Creators
- Amun Amri - Department of Chemical Engineering, University of Riau, Pekanbaru 28293, IndonesiaYola Bertilsya Hendri - Department of Chemical Engineering, University of Riau, Pekanbaru 28293, IndonesiaSunarno - Department of Chemical Engineering, University of Riau, Pekanbaru 28293, IndonesiaYoyok Dwi Setyo Pambudi - Research Center for Nuclear Reactor Technology, BRIN, Tangerang Selatan 15314, IndonesiaMazhibayev Assylzhan - Department of Chemistry, Taraz University named after M.Kh. Dulaty, 080000 Taraz, KazakhstanKambarova Elmira - Department of Chemistry, Taraz University named after M.Kh. Dulaty, 080000 Taraz, KazakhstanKhusnul Ain - Department of Biomedical Engineering, Universitas Airlangga, Surabaya 60115, IndonesiaKhairulazhar Jumbri - Universiti Teknologi PetronasZhong Tao Jiang - Murdoch UniversityChun-Chen Yang - Ming Chi University of Technology
- Publication Details
- Communications in science and technology, Vol.10(1), pp.68-74
- Publisher
- Komunitas Ilmuwan dan Profesional Muslim Indonesia
- Identifiers
- 991005803323307891
- Copyright
- © the Authors
- Murdoch Affiliation
- Centre for Water, Energy and Waste
- Language
- English
- Resource Type
- Journal article
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