@inproceedings{a9c452add6104fa582ace083ad9a9740,
title = "Synthesize of LiMn2O4from manganese ore as cathode materials in lithium ion battery",
abstract = "In this work, lithium ion battery cathode material (LiMn2O4) has been synthesized from Li2CO3 as a source of Li and manganese ore (pyrolusite) as a source of MnO2. Manganese ore was characterized using X-Ray Fluorescence (XRF) and X-Ray Diffraction (XRD). XRF results showed that manganese ore contains 89.35% MnO. XRD diffractogram showed MnO2 peaks in accordance with JCPDS no. 24-0735. Manganese ore was leached using hydrofluoric acid and nitric acid to remove silica and other impurities. Leaching optimization was carried out using Response Surface Methodology (RSM) with Box-Bahken Design. The optimization showed that the highest MnO2 recovery from acid leaching was 95.73%. All the leaching residue contain MnO2 at 100% ranges. The optimum acid leaching condition was obtained by leaching 0.5 grams of manganese ore in 20 mL HNO3 at 80°C for 6 hours. LiMn2O4 was synthesized using a solid state reaction at 900 °C. The LiMn2O4 that obtained was applied as cathode materials characterized using cyclic voltammetry (CV), charge-discharge (CD) and Electrochemical Impedance Spectroscopy (EIS).",
author = "Putri, {Haryudini Arsa} and Alfikri Khair and Ni'Mah, {Yatim Lailun} and Suprapto Suprapto",
note = "Publisher Copyright: {\textcopyright} 2020 Author(s).; 3rd International Seminar on Chemical Education: Trends, Applications, Changes in Chemical Education for the 4.0 Industrial Revolution, ISCE 2019 ; Conference date: 17-09-2019",
year = "2020",
month = apr,
day = "21",
doi = "10.1063/5.0002826",
language = "English",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
editor = "Is Fatimah and Muhaimin and Musawwa, {Muhammad Miqdam}",
booktitle = "3rd International Seminar on Chemical Education",
}