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All Journal Jurnal Material dan Energi Indonesia Jurnal Ilmu dan Inovasi Fisika
MAULANA, FARIZ PRAMUDIA
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Computer Science & IT Electrical & Electronics Engineering Energy Environmental Science Materials Science & Nanotechnology

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KAJIAN PEMURNIAN SULFUR ALAM DENGAN TEKNIK DISOLUSI-REKRISTALISASI UNTUK KEBUTUHAN APLIKASI KATODE BATERAI Li-S MAULANA, FARIZ PRAMUDIA; HIDAYAT, SAHRUL
Jurnal Material dan Energi Indonesia Vol 13, No 2 (2023)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jme.v13i2.49988

Abstract

Kebutuhan akan baterai terus meningkat seiring dengan kemajuan teknologi mobile dan elektrifikasi kendaraan bermotor. Hal ini mendorong pencarian teknologi baterai alternatif, salah satunya adalah baterai litium-sulfur (Li-S) yang mendapatkan perhatian besar karena kepadatan energi teoretisnya mencapai ~2500 W·h kg-1 atau empat kali lebih besar dibanding baterai lithium-ion konvensional. Namun, baterai Li-S menghadapi tantangan dalam hal siklus hidup dan daya tahan baterai. Oleh karena itu, studi teknik pemurnian sulfur disolusi-rekristalisasi diusulkan untuk mendapatkan sulfur dengan kemurnian, yield, dan kristalinitas yang tinggi dengan distribusi ukuran partikel yang homogen dari bahan baku sulfur alam sebagai salah satu langkah untuk memenuhi persyaratan katoda baterai Li-S yang optimal. Sulfur yang dimurnikan memiliki kemurnian dan yield tertinggi pada variasi suhu pemanasan 100℃ yaitu sebesar 91,159% pada analisis energy dispersive spectroscopy (EDS), dan 97,530% pada analisis X-ray fluorescence spectroscopy (XRF), dengan yield sebesar 18,698%. Sulfur yang dimurnikan memiliki derajat kristalinitas sebesar 75,620% yang diukur dengan menggunakan teknik analisis X-ray diffraction (XRD), serta rata-rata ukuran partikel sebesar 327,9 nm dengan sebaran ukuran yang masih heterogen yang diukur dengan particle size analyzer (PSA).Kata kunci: baterai litium-sulfur, pemurnian sulfur, disolusi-rekristalisasi
Natural Sulfur Purification and Its Characterization for Lithium-Sulfur Battery Haq, Syifa Arinal; Maulana, Fariz Pramudia; Hidayat, Sahrul
JIIF (Jurnal Ilmu dan Inovasi Fisika) Vol 9, No 2 (2025)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jiif.v9i2.64980

Abstract

Sulfur has great potential as a battery cathode material due to its high energy storage capacity. However, contaminants in natural sulfur can negatively impact battery performance and stability. This study aims to enhance the purity and crystallinity of natural sulfur from Kawah Ijen and Tangkuban Perahu using the dissolution-recrystallization method with toluene solvent at 100°C. By dissolving sulfur in toluene, impurities are separated, allowing pure sulfur to recrystallize. XRD analysis revealed that sulfur from Tangkuban Perahu exhibits a higher degree of crystallinity (88,4%) compared to sulfur from Kawah Ijen (75,620%). However, SEM-EDS results showed that sulfur from Kawah Ijen has higher elemental purity, with sulfur content of 91,159% and carbon content at 8,841%. These findings demonstrate that the dissolution-recrystallization method yields different results for sulfur from Tangkuban Perahu and Kawah Ijen. SEM-EDS is effective in measuring chemical purity, while XRD provides insights into the crystal structure. This comparative study highlights the significance of evaluating sulfur from different natural sources, revealing that the higher purity of Kawah Ijen sulfur makes it more suitable for Li-S battery applications. These results have significant implications for local sulfur processing industries, emphasizing the importance of purification techniques in producing high-quality sulfur for advanced Li-S batteries.keywords: sulfur purification, dissolution-recrystallization, Li-S battery, sulfur purity, crystallinity
Co-Authors Haq, Syifa Arinal Sahrul Hidayat