| NIM | K1C021025 |
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| Namamhs | WINDI WULANDARI |
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| Judul Artikel | PENGARUH DOPING SILICON PADA KATODA LiMn0,8Fe0,2PO4/C TERHADAP PERFORMA BATERAI LITHIUM-ION DENGAN METODE SOL-GEL |
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| Abstrak (Bhs. Indonesia) | Katoda LiMn0,8Fe0,2PO4/C dengan doping silikon dan dilapisi karbon menggunakan glukosa berhasil dilakukan melalui metode sol-gel. X-Ray Diffraction (XRD) menunjukkan bahwa fasa olivine terbentuk, dan analisis karakterisasi Field Emission Scanning Electron Microscopy (FESEM) menunjukkan rata-rata dimensi partikel katoda dalam orde kurang dari 100-300 nanometer. EDX menunjukkan bahwa setiap unsur penyusun utama tersebar merata. Berdasarkan analisis Electrochemical Impedance Spectroscopy (EIS), katoda LiMn0,8Fe0,2PO4/C memiliki resistansi kecil sebesar 146 Ω dan difusi ion lithium yang tinggi sebesar 6,05 × 10^(-8) S/cm2. Cyclic Voltammetry (CV) menunjukkan bahwa katoda LiMn0,78Fe0,2Si0,02PO4/C mengalami mangan dissolution dan meningkatkan polarisasi. Uji Charge-Discharge (CD) memperoleh hasil katoda LiMn0,78Fe0,2Si0,02PO4/C dengan kapasitas spesifik pelepasan awal sebelum c-rate 77 mAh/g lebih tinggi dibandingkan katoda LiMn0,8Fe0,2PO4/C sebesar 62 mAh/g, namun setelah uji c-rate katoda dengan doping Silikon mengalami penurunan kapasitas secara signifikan dan berbeda dengan katoda LiMn0,8Fe0,2PO4/C cenderung stabil. Hasil penelitian secara keseluruhan menunjukkan katoda LiMn0,8Fe0,2PO4/C memiliki nilai yang lebih baik. |
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| Abtrak (Bhs. Inggris) | Silicon-doped and carbon-coated LiMn0,8Fe0,2PO4/C cathode using glucose was successfully carried out via sol-gel method. X-Ray Diffraction (XRD) showed that olivine phase was formed, and Field Emission Scanning Electron Microscopy (FESEM) characterization analysis showed the average particle dimensions of the cathode were in the order of less than 100-300 nanometers. EDX shows that each main constituent element is evenly distributed. Based on Electrochemical Impedance Spectroscopy (EIS) analysis, the LiMn0,8Fe0,2PO4/C cathode has a small resistance of 146 Ω and high lithium ion diffusion of 6.05 × 10^(-8) S/cm2. Cyclic Voltammetry (CV) showed that the LiMn0,78Fe0,2Si0,02PO4/C cathode underwent manganese dissolution and increased polarization. Charge-Discharge (CD) test obtained the results of LiMn0,78Fe0,2Si0,02PO4/C cathode with initial discharge specific capacity before c-rate of 77 mAh/g higher than LiMn0,8Fe0,2PO4/C cathode of 62 mAh/g, but after c-rate test the cathode with Silicon doping significantly decreased capacity and in contrast to LiMn0,8Fe0,2PO4/C cathode tends to be stable. The overall results show that LiMn0,8Fe0,2PO4/C cathode has a better value. |
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| Kata kunci | Baterai Lithium-ion, Katoda, LiMnFePO4/C, Silikon, Sol-Gel |
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| Pembimbing 1 | Prof. Dr.-Ing. R. Wahyu Widanarto, M.Si |
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| Pembimbing 2 | Achmad Subhan, S.Si, M.T |
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| Pembimbing 3 | |
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| Tahun | 2025 |
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| Jumlah Halaman | 107 |
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| Tgl. Entri | 2025-04-25 11:23:29.483483 |
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