Analisis Pengaruh Variasi Coating Pani Pada Proses Sintesis Katoda Sulfur/Mno2 Terhadap Performa Elektrokimia Baterai Lithium-Sulfur

Islam, Ibrahim Fathahillah Hizbul (2022) Analisis Pengaruh Variasi Coating Pani Pada Proses Sintesis Katoda Sulfur/Mno2 Terhadap Performa Elektrokimia Baterai Lithium-Sulfur. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Dewasa ini energi listrik menjadi kebutuhan utama dalam kegiatan kehidupan manusia. Terutama pada bidang baterai pada Kendaraan bermotor listrik sebagi alternatif transportasi. Baterai katoda sulfur dan anoda lithium (Li-S) menjadi pilihan karena kapasitas yang tinggi yaitu sebesar 2500 Wh/kg lebih tinggi daripada Li-Ion yang mempunyai kapasitas 420 Wh/kg. Dalam penelitian ini Li-S dimodifikasi untuk peningkatan performa elektrokimia, karena Li-S mempunyai kelemahan yaitu konduktivitas yang rendah. Li-S ditingkatkan konduktivitasnya dengan modifikasi pada katoda, katoda sulfur di coating MnO2 kemudian Polianilin (PANI). Tujuan dari penelitian ini adalah untuk menentukan pengaruh coating PANI terhadap katoda sulfur/MnO2 (S/MnO2) dengan variasi berat S/MnO2 : anilin (70%:30%, 80%:20%, 90%:10%). Prosedur coating menggunakan larutan anilin-HCl dengan ammonium persulfat dengan suhu 0–20oC selama 30 menit sambil diaduk pada 480 rpm, kemudian dipanaskan di oven dengan suhu 60oC selama 24 jam. Berdasarkan hasil uji karakterisasi didapatkan struktur sulfur ortorhombik dan δ-MnO2. Pengaruh coating pada karakterisasi memperkecil cristallite size dengan hasil terkecil pada variasi PANI 10% sebesar 117,4 nm. Berdasarkan hasil pengujian performa elektrokimia didapatkan hasil baterai lithium-sulfur yang memiliki performa terbaik pada variasi PANI 10%, hal ini dikarenakan nilai tahanan yang rendah yaitu sebesar 11,596 Ohm dan mempunyai kapasitas spesifik charge dan discharge dengan nilai 819,5674 mAhg-1 dan 711,6122 mAhg-1. Sehingga katoda S/MnO2 coating PANI 10 % ini layak menjadi kandidat sebagai katoda baterai lithium sulfur.
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Today, electrical energy is a major need in human life activities. Especially in the field of batteries in electric motorized vehicles as alternative transportation. Sulfur cathode and lithium anode (Li-S) batteries are the choices because of their high capacity which is 2500 Wh/kg higher than Li-Ion which has a capacity of 420 Wh/kg. In this study, Li-S was modified to improve electrochemical performance, because Li-S has a weakness, namely low conductivity. Li-S conductivity was improved by modifying the cathode, sulfur cathode in MnO2 coating, and then Polyaniline (PANI). This study aimed to determine the effect of PANI coating on sulfur/MnO2 (S/MnO2) cathode with weight variation of S/MnO2: aniline (70%:30%, 80%:20%, 90%:10%). The coating procedure used an aniline-HCl solution with ammonium persulfate at temperature 0-20oC for 35 minutes while stirring at 480 rpm, then heated in an oven at 60oC for 24 hours. Characterization test results, the structures of sulfur are orthorhombic and δ-MnO2 were obtained. The effect of coating on the characterization of reducing crystallite size with the smallest result at 10% PANI variation of 117.4 nm. Based on the results of the electrochemical performance test, it was found that the lithium-sulfur battery had the best performance in the 10% PANI variation, this is due to the low resistance value of 11.596 Ohm and a specific charge and discharge capacity of 819.5674 mAhg-1 and 711.6122 mAhg-1. So that this 10% PANI coating S/MnO2 cathode deserves to be a candidate as a lithium-sulfur battery cathode.

Item Type:	Thesis (Other)
Additional Information:	RSMt 671.73 Isl a-1 2022
Uncontrolled Keywords:	Baterai, Katoda, Lithium-Sulfur, PANI, S/MnO2,
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA418.9.C57 Coatings
Divisions:	Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	11 Feb 2025 06:11
Last Modified:	11 Feb 2025 06:11
URI:	http://repository.its.ac.id/id/eprint/118647

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