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HomeEngineering ChemistryEngineering Chemistry Vol. 5Enhanced Ionic Conductivity of Fluoride-Doped...

Enhanced Ionic Conductivity of Fluoride-Doped LiTi₂(PO₄)₃ as Solid Electrolyte of Lithium-Ion Battery

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Abstract:

In this study, LiTi₂(PO₄)₃ (LTP) was synthesized by the addition of lithium fluoride (LiF) of 0 %, 5 %, and 10 wt.%. A wet solid-state reaction method is applied by mixing Li₂CO₃, TiO₂_, and NH₄H₂PO₄ into a ball mill, then calcined at 900^o C for 12 hr. XRD pattern of Fluoride-doped LTP is indexed and found in two phases. First is the Nasicon phase (LiTi₂(PO₄)₃) with rhombohedral structure, and second, the Olivine phase (LiTiPO5) with orthorhombic structure at the addition of 5 % and 10 wt. % of LiF. The higher LiF decreases the cell volume while the crystallite size, particle size, and material density increase. The morphology of the Fluoride-doped LTP is increasingly homogeneous and more rectangle-shape. LTP 2, adding 10 wt. % of LiF, has high ionic conductivity at 4.77 10^-4 S cm^-1 as a promising candidate material for solid-electrolyte of lithium-ion battery.

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The 5th International Conference on Materials and Metallurgical Engineering and Technology (ICOMMET)

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Periodical:

Engineering Chemistry (Volume 5)

Pages:

37-42

DOI:

https://doi.org/10.4028/p-FrjE6w

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Cite this paper

Online since:

January 2024

Authors:

Muhammad Rial Afif, Vania Mitha Pratiwi, Lukman Noerochim*

Keywords:

Conductivity, Fluoride, Lithium-Ion Battery, LiTi₂(PO₄)₃, Solid-State Method

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Creative Commons CC BY 4.0

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* - Corresponding Author

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