Aplikasi Hasil Pelindian Grafit Dari Daur Ulang Baterai Ion Litium Dengan Asam Sulfat Sebagai Material Anoda Baru

Hidayatullah, Nirwana Arcella Arum Kumala (2021) Aplikasi Hasil Pelindian Grafit Dari Daur Ulang Baterai Ion Litium Dengan Asam Sulfat Sebagai Material Anoda Baru. Masters thesis, Institut Teknologi Sepuluh Nopember.

Text 01211950010006-Master_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2023. Download (3MB) | Request a copy

Abstract

Kebutuhan masyarakat akan baterai ion litium menyebabkan peningkatan produksi baterai. Peningkatan ini menghasilkan limbah baterai sehingga menimbulkan terjadinya pemborosan sumber daya yang terkandung dalam baterai apabila langsung dibuang ke lingkungan. Baterai ion litium bekas dapat didaur ulang dan digunakan kembali sebagai komponen baterai baru. Daur ulang grafit pada baterai ion litium dilakukan dengan metode pemisahan mekanis, pencucian dengan pelarut DMC (dimethyl carbonate) dan NMP (N-methyl-2-pyrrolidone), pelindian dengan H2SO4 2 M dan H2O2, serta pemanasan dengan furnace beratmosfer N2 suhu 500°C. Hasil karakterisasi FTIR menunjukkan bahwa material anoda bekas, material anoda hasil pencucian dan hasil pelindian tidak menunjukkan perbedaan gugus fungsi yang signifikan. Selain itu, gambar SEM (Scanning Electron Microscope) grafit yang dicuci dan yang dilindi menunjukkan morfologi yang hampir mirip. Hasil XRD (X-Ray Diffraction) menunjukkan bahwa ketiga material anoda adalah grafit yang sesuai dengan JCPDS 96-901-2231. Melalui uji EIS (Electrochemical Impedance Spectroscopy) dihasilkan konduktivitas listrik material anoda hasil pencucian dan hasil pelindian masing-masing sebesar 2,70 x 10-5 dan 1,99 x 10-5 S/cm. Uji performansi baterai melalui voltametri siklik menunjukkan potensial formal redoks setengah sel dari material anoda hasil pencucian, hasil pelindian, dan grafit komersial masing-masing sebesar 0,228 V; 0,224 V; dan 0,222 V. Perlakuan pelindian menggunakan H2SO4 dan H2O2 berhasil meningkatkan kapasitas discharge pertama dari baterai ion litium yaitu sebesar 281,3 mAh/g dari grafit hasil pencucian 264,47 mAh/g. Oleh karena itu, grafit yang diperoleh dari hasil daur ulang dalam penelitian ini berpotensi untuk digunakan kembali sebagai material anoda untuk baterai ion litium baru.
====================================================================================================
The increase of lithium ion batteries application has led to an increase in battery production. This increase causes an increase in battery waste that causing environment problem if it is directly disposed into the environment. Used lithium ion batteries can be recycled and reused in new batteries. Recycling of graphite in lithium ion batteries was carried out by mechanical separation, washed with DMC (dimethyl carbonate) and NMP (N-methyl-2-pyrrolidone), leached with H2SO4 2 M and H2O2, and heated in a furnace at 500°C for 1 hour in N2 atmosphere. The FTIR characterization showed that the used anode material, washed anode material and leached results did not show significant differences in their functional groups. In addition, the washed and leached graphite SEM (Scanning Electron Microscope) images showed similar morphology. XRD (X-Ray Diffraction) results indicated that the three anode materials were graphite that in accordance with JCPDS 96-901- 2231. Through the EIS (Electrochemical Impedance Spectroscopy) test, the electrical conductivity of the washed and leached anode materials was 2.70 x 10-5 and 1.99 x 10-5 S/cm, respectively. Battery performance test using cyclic voltammetry showed that the half-cell formal redox potential of the washed anode material, leached material, and commercial graphite were 0.228 V; 0.224 V; and
0.222 V, respectively. The leaching treatment with H2SO4 and H2O2 succeeded in increasing the first discharge capacity of the lithium ion battery to 281.3 mAh/g from the washed graphite by 264.47 mAh/g. Therefore, the recycled graphite in this study has the potential to be reused as anode material for new lithium ion batteries.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	baterai ion litium, daur ulang, grafit, material anoda, pelindian anode material, graphite, leaching, lithium-ion batteries, recycling
Subjects:	Q Science > QD Chemistry > QD115 Electrochemical analysis T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2941 Storage batteries T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL220 Electric vehicles and their batteries, etc.
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47101-(S2) Master Thesis
Depositing User:	Nirwana Arcella Arum Kumala Hidayatullah
Date Deposited:	24 Aug 2021 11:52
Last Modified:	24 Aug 2021 11:52
URI:	http://repository.its.ac.id/id/eprint/87780

Actions (login required)

View Item