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).
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21 April 2020
3RD INTERNATIONAL SEMINAR ON CHEMICAL EDUCATION: Trends, Applications, Changes in Chemical Education for the 4.0 Industrial Revolution
17 September 2019
Yogyakarta, Indonesia
Research Article|
April 21 2020
Synthesize of LiMn2O4 from manganese ore as cathode materials in lithium ion battery
Haryudini Arsa Putri;
Haryudini Arsa Putri
Department of Chemistry, Institut Teknologi Sepuluh Nopember
, Surabaya, Indonesia
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Alfikri Khair;
Alfikri Khair
Department of Chemistry, Institut Teknologi Sepuluh Nopember
, Surabaya, Indonesia
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Yatim Lailun Ni’mah;
Yatim Lailun Ni’mah
Department of Chemistry, Institut Teknologi Sepuluh Nopember
, Surabaya, Indonesia
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Suprapto Suprapto
Suprapto Suprapto
a)
Department of Chemistry, Institut Teknologi Sepuluh Nopember
, Surabaya, Indonesia
a)Corresponding Author: [email protected]
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a)Corresponding Author: [email protected]
AIP Conf. Proc. 2229, 030021 (2020)
Citation
Haryudini Arsa Putri, Alfikri Khair, Yatim Lailun Ni’mah, Suprapto Suprapto; Synthesize of LiMn2O4 from manganese ore as cathode materials in lithium ion battery. AIP Conf. Proc. 21 April 2020; 2229 (1): 030021. https://doi.org/10.1063/5.0002826
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