Savitri, Diajeng Aulina (2019) Penggunaan Limbah Pasta Baterai Sel Kering Sebagai Material Katoda Baterai Ion Lithium. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
LiMn2O4 telah disintesis dengan metode reaksi fasa padat. Sumber Mn adalah MnO2 yang diperoleh dari pasta baterai sel kering bekas. Optimasi pelindihan dilakukan dengan metode respons permukaan (Response Surface Methodology (RSM)) menggunakan desain Box-Behnken. Sumber Li yang digunakan adalah Li2CO3. LiMn2O4 yang terbentuk digunakan sebagai material katoda pada baterai ion lithium. Kadar MnO2 dalam limbah baterai sel kering adalah 62,82% yang didapatkan dari uji XRF. Kadar Mn tertinggi didapatkan pada sampel F yaitu sebesar 59,9766% yang diperoleh dari uji AAS, dengan [HCl] 2 M, S/L 1 gram serbuk baterai di dalam 20 ml HCl dengan waktu 2 jam. Hasil uji siklik voltametri (CV) menunjukkan adanya reaksi redoks yang ditandai dengan terbentuknya dua puncak oksidasi dan reduksi, didapatkan hasil dengan nilai Epa 1 = 4,1 V, Epa 2 = 4,3 V, Epc 1 = 3,9 V, Epc 2 = 4,1 V dan Ipa 1 = 0,3 mA, Ipa 2 = 0,4 mA, Ipc 1 = -0,4 mA dan Ipc 2 = -0,3 mA. Hasil pengukuran Charge-Discharge (CD) memperlihatkan bahwa, LiMn2O4 yang telah disintesis memiliki kapasitas berturut-turut sebesar 40,27mAh/g dan 37,68 mAh/g dan 39,17 mAh/g serta 36,81 mAh/g dan nilai Rctnya sebesar 250 ohm.
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LiMn2O4 has been synthesized by the solid state ractionmethod. Mn source was MnO2 that obtained from used dry cell battery paste. Leaching optimization was done by Response Surface Methodology (RSM) using Box-Behnken design. The Li source that used research was Li2CO3. LiMn2O4 that applied as cathode material on lithium-ion batteries. The concentration of MnO2 in dry cell battery waste was 62.82% obtained from the XRF test. The highest Mn content was obtained in sample F which was 59.9766% obtained from the AAS test, with HCl 2 M, S/L 1 grams of battery powder in 20 ml HCl that leached for 2 hours. The CV test indicated that a redox reaction was observed by the formation of two peaks of oxidation and reduction with Epa1 = 4.1 V, Epa2 = 4.3 V, Epc1 = 3.9 V, Epc2 = 4.1 V and Ipa1 = 0.3 mA, Ipa 2 = 0.4 mA, Ipc1 = -0.4 mA and Ipc2 = -0.3 mA. The Charge-Discharge (CD) measurement results show that, synthesized LiMn2O4 has capacitance of 40.27 mAh/g and 37.68 mAh/g respectively and 39.11 mAh/g for discharge and Rct value is 250 ohm.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSKi 541.39 Sav p-1 2019 |
| Uncontrolled Keywords: | Baterai Ion lithium, Limbah pasta baterai sel kering, MnO2, Katoda dan LiMn2O4 |
| Subjects: | Q Science > QD Chemistry > QD115 Electrochemical analysis Q Science > QD Chemistry > QD75.2 Chemistry, Analytic |
| Divisions: | Faculty of Natural Science > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | Diajeng Aulina Savitri |
| Date Deposited: | 26 Apr 2024 01:54 |
| Last Modified: | 26 Apr 2024 01:54 |
| URI: | http://repository.its.ac.id/id/eprint/64336 |
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