Studi Pengaruh Co-Doping Zr-Al Terhadap Struktur Material Katoda Ncm811 Pada Baterai Ion Litium

Barata, Sitti Afifah Karimah M (2022) Studi Pengaruh Co-Doping Zr-Al Terhadap Struktur Material Katoda Ncm811 Pada Baterai Ion Litium. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini dilakukan metode Co-doping Zr-Al terhadap bahan katoda oksida berlapis nikel sebagai pendekatan yang sangat valid untuk meningkatkan sifat elektrokimia bahan katoda dengan mempercepat transfer elektronik/ionik dan menstabilkan struktur kisi untuk menggantikan sumber energi konvensional.Tujuan penelitian ini adalah untuk mengetahui pengaruh Co-doping pada Zirkonium dioksida (ZrO2) dengan konsentrasi tetap 0.01 dan variasi Aluminium Asetat (C4H7AlO5.2H2O) dengan konsentrasi 0, 0.01, 0.015, 0.02 terhadap struktur kristal, distribusi ukuran kristal, morfologi & komposisi elemen dan gugus fungsi material katoda baterai NCM811 Co-doping Zr-Al yang disentesis menggunakan metode kopresipitasi hidroksida. Material katoda baterai NCM811 Co-doping Zr-Al kemudian diuji XRD, PSA, SEM-EDX, dan FTIR. Hasil XRD menunjukkan bahwa struktur kristal yang terbentuk heksagonal (Space-group R3m) dan kubik (Space-group Fd3m). Penambahan doping Zr dapat meningkatkan jarak antar muka bidang kristal dan doping Al dapat menstabilkan struktur kristal NCM811 serta menjadi lebih besar sehingga mempermudah proses pengisian dan pengosongan ion litium. Distribusi partikel bersifat homogen, penambahan Co-doping Zr-Al dapat meningkatkan dispersi serta memiliki morfologi partikel yang memiliki geometri hampir bulat. Penambahan co-doping Zr-Al dalam jumlah yang tepat dapat mencegah adanya aglomerasi dan cenderung memperkecil partikel yang lebih seragam sehingga dapat memperpendek lintasan difusi ion litium. Elemen pembentuk utama material katoda berdasarkan uji EDX adalah Ni, Co, Mn, Al, dan Zr yang terdistribusi secara merata dan gugus fungsi molekuler material katoda berdasarkan pengamatan FTIR berada pada rentang 400-700 cm-1, dengan mode regangan M-O, mode regangan ZR-O-ZR, dan mode regangan Al-O.
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This research was carried out using the Zr-Al Co-doping method on nickel-plated oxide cathode material as a very valid approach to improve the electrochemical properties of cathode materials by accelerating electronic/ionic transfers and stabilizing the lattice structure to replace conventional energy sources. the effect of Co-doping on Zirconium dioxide (ZrO2) with a fixed concentration of 0.01 and variations of Aluminum Acetate (C4H7AlO5.2H2O) with a concentration of 0, 0.01, 0.015, 0.02 on the crystal structure, crystal size distribution, morphology & elemental composition and functional groups of battery cathode material Li(Ni0.8Co0.1-yMn01Aly)0.99Zr0.01O2 which was synthesized using the hydroxide coprecipitation method. Battery cathode material Li(Ni0.8Co0.1-yMn01Aly)0.99Zr0.01O2 was studied by XRD, PSA, SEM-EDX, and FTIR tests. XRD results showed that the crystal structure formed was hexagonal (Space-group R3m) and cubic (Space-group Fd3m). The addition of Zr doping can increase the interfacial distance of the crystal plane and Al doping can stabilize the crystal structure of NCM811 and become larger to facilitate the process of charging and discharging lithium ions. The particle distribution is homogeneous, the addition of Zr-Al Co-doping can increase the dispersion and has a particle morphology that has a nearly spherical geometry. The addition of Zr-Al co-doping in the right amount can prevent agglomeration and tend to reduce more uniform particles to shorten the lithium-ion diffusion path. The main constituent elements of cathode material based on the EDS test are Ni, Co, Mn, Al, and Zr which are evenly distributed, and the molecular functional groups of cathode material based on FTIR observations are in the range of 400-700 cm-1, with M-O strain mode, strain mode ZR-O-ZR, and Al-O strain mode.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Katoda Baterai, , Kopresipitasi, Co-doping Zr-Al, Karakterisasi, Battery Cathode, Coprecipitation, Al-Zr Co-doping, Characterization
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	16 Dec 2025 06:32
Last Modified:	16 Dec 2025 06:32
URI:	http://repository.its.ac.id/id/eprint/128992

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