Pengaruh Temperatur Kalsinasi Pada Struktur LiFeSi0,03P0,97O4/C Sebagai Katoda Baterai Litium

Putri, Dewinta Jalasena (2021) Pengaruh Temperatur Kalsinasi Pada Struktur LiFeSi0,03P0,97O4/C Sebagai Katoda Baterai Litium. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Material LiFeSi0,03P0,9O4/C telah berhasil disintesis dengan metode pencampuran padatan dengan variasi temperatur kalsinasi 400°C, 500°C, 600°C, 700°C, 800°C. Dopan yang digunakan adalah silikon (Si) dan sumber karbon yang digunakan adalah glukosa (C6H12O6). Karakterisasi yang digunakan pada penelitian ini adalah uji DSC-TGA, XRD, SEM-EDX, PSA, FTIR dan TEM. Pada analisis XRD fasa yang terbentuk adalah olivin LiFePO4 dengan struktur kristal orthorombik dan grup ruang Pnma pada sampel dengan variasi temperatur 600, 700 dan 800ºC. Karakteristik TEM menunjukan karbon melapisi permukaan partikel LiFeSi0,03P0,97O4 dengan ketebalan 37 nm. SEM dan PSA menunjukkan ukuran partikel semakin meningkat seiring dengan semakin tinggi temperatur kalsinasi. Sampel paling baik ditunjukkan oleh sampel pada temperatur 700°C dengan rata-rata ukuran partikel 523 nm dengan persebaran karbon paling merata dan partikel yang tidak beraglomerasi. Pada hasil analisis FTIR terdapat ikatan mode stretching simetri Fe-O, mode bending simetri dan asimetri O-P-O, mode stretching simetri dan asimetri P-O, serta mode stretching simetri C-C. Ikatan C-C tidak mempengaruhi material LiFeSi0,03P0,97O4 menunjukan bahwa LiFeSi0,03P0,97O4/C merupakan material komposit.
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LiFeSi0.03P0.97O4/C material with various temperatures (400 °C, 500 °C, 600 °C, 700 °C, 800 °C) has been successfully synthesized by solid-state reaction method. The dopant used is silicon (Si) and the carbon source used is glucose (C6H12O6). The characterizations used in this research were DSC-TGA, XRD, SEM-EDX, PSA, FTIR, and TEM tests. In XRD analysis, the phase formed is olivine LiFePO4 with an orthorhombic crystal structure and Pnma space group at temperature variations 600, 700, and 800ºC. The TEM results showed that the carbon coating the surface of the LiFeSi0.03P0.97O4 with a thickness is 37 nm. SEM, and PSA showed an increasing particle size along with the higher calcination temperature. The best sample at 700°C with average particle size is 523 nm with the distribution of carbon-the most evenly and non-agglomerated particles. In the FTIR analysis, it shows that there are symmetry stretching mode of Fe-O,symmetry and asymmetry bending mode of O-P-O, symmetry and asymmetry stretching mode of P-O, and symmetry stretching mode of C-C. The C-C mode don’t affect the material LiFeSi0,03P0,9O4 material which indicates LiFeSi0,03P0,97O4/C is a composite material.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Baterai Litium, Struktur, Temperatur Kalsinasi. Lithium Battery, Structure, Calcination Temperature.
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis
Depositing User:	Dewinta Jalasena Putri
Date Deposited:	19 Aug 2021 13:09
Last Modified:	19 Aug 2021 13:09
URI:	http://repository.its.ac.id/id/eprint/87406

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