JULIANTI, FITRI (2024) SINTESIS BESI(II) OKSALAT (FeC2O4) DARI LIMBAH INDUSTRI BAJA SEBAGAI APLIKASI MATERIAL KATODA BATERAI LITHIUM IRON PHOSPHATE (LiFePO4). S1 thesis, UNIVERSITAS SULTAN AGENG TIRTAYASA.
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Abstract
The LiFePO4 battery cathode material has been successfully synthesized using the solid state reaction method by utilizing FeC2O4 and Fe2O3 precursors from steel industry waste (mill scale) which was synthesized via the hydrothermal method and the addition of commercial samples. The results of in all variations it has an orthorhombic structure which has an average crystal size of around 39-44nm with an olivine-shaped morphology containing the elements Fe, O, P, and C. Battery performance tests consisting of EIS, CV, and CD tests show the LiFePO4 sample. FeC2O4 (HT) has the best performance with an Rct value of 475Ω, has a semicircle-straight line pattern and lithium ion diffusion capability, which also produces the best anodic-cathodic peak pairs around 3.54V and 3.32V with a capacity of 5.06 mAHr/g.
| Item Type: | Thesis (S1) | |||||||||
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| Additional Information: | Material katoda baterai LiFePO4 telah berhasil disintesis menggunakan metode solid state reaction dengan memanfaatkan prekursor FeC2O4 dan Fe2O3 dari limbah industri baja (mill scale) yang disintesis melalui metode hidrotermal dan penambahan sampel komersil. Hasil XRD dan SEM-EDX menunjukkan bahwa fasa FeC2O4 diindeks ke βFeC2O4.2H2O dengan struktur monoclinic (Ia/2), fasa Fe2O3 diindeks ke αFe2O3 dengan struktur hexagonal (Rhombohedral R-3c) serta mengandung unsur Fe, C dan O. Sedangkan fasa LiFePO4 pada semua variasi memiliki struktur orthorombic yang memiliki ukuran kristal rata-rata sekitar 39-44nm dengan morfologi berbentuk olivine yang terdapat kandungan unsur Fe, O, P, dan C. Uji performa baterai yang terdiri dari uji EIS, CV, dan CD menunjukkan sampel LiFePO4.FeC2O4 (HT) memiliki performa paling baik dengan nilai Rct sebesar 475Ω memiliki pola semicirlce-straight line dan kemampuan difusi ion litium yang, juga diperoleh pasangan puncak anodik-katodik paling baik sekitar 3.54V dan 3.32V dengan kapasitas sebesar 5,06 mAHr/g. | |||||||||
| Subjects: | Q Science > QC Physics | |||||||||
| Divisions: | 02-Fakultas Keguruan dan Ilmu Pendidikan 02-Fakultas Keguruan dan Ilmu Pendidikan > 84203-Jurusan Pendidikan Fisika |
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| Depositing User: | Fitri Fitjul Julianti | |||||||||
| Date Deposited: | 15 Jul 2024 10:27 | |||||||||
| Last Modified: | 15 Jul 2024 10:27 | |||||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/38351 |
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