Samsudin, Dila Kurnia (2025) Sintesis Dan Karakterisasi Morfologi Katoda LiNi0.8MnyCo1-x-yO2 (x = 0,8) ) Variasi Co (5%, 7,5%, 10%, 12,5%) dengan Metode Kopresipitasi Untuk Baterai Ion Lithium. Other thesis, Institut Teknologi Sepuluh Nopember.
![[thumbnail of 5001211122-Undergraduate_Theses.pdf]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
5001211122-Undergraduate_Theses.pdf - Accepted Version Restricted to Repository staff only Download (11MB) | Request a copy |
Abstract
Penelitian ini berfokus pada sintesis dan karakterisasi material katoda berbasis Nikel Mangan Kobalt (NMC) dengan kandungan nikel tinggi dan kobalt rendah untuk baterai ion lithium (Lithium-Ion Battery-LIB). Material katoda berperan penting dalam menentukan kapasitas, stabilitas siklus, dan kinerja keseluruhan baterai. NMC dipilih karena memiliki kepadatan energi tinggi, stabilitas termal yang baik, serta sifat elektrokimia yang dapat disesuaikan melalui variasi komposisi logam transisi. Pada penelitian ini, sintesis dilakukan menggunakan metode kopresipitasi dalam sistem Continuous Stirred Tank Reactor (CSTR) dengan atmosfer nitrogen, menggunakan prekursor nikel sulfat (NiSO₄⋅6H₂O), mangan sulfat (MnSO₄⋅H₂O), dan kobalt sulfat (CoSO₄⋅7H₂O), serta natrium hidroksida (NaOH) dan amonium hidroksida (NH₄OH) sebagai agen pengendali pH dan pengompleks. Variasi kandungan kobalt yang digunakan adalah 5%, 7,5%, 10%, dan 12,5% dalam formula LiNixMnyCo1-x-yO₂ (x = 0,8), guna mengevaluasi pengaruhnya terhadap struktur kristal, morfologi partikel, dan komposisi unsur. Karakterisasi dilakukan menggunakan Differential Thermal Analysis - Thermogravimetric Analysis (DTA-TGA) untuk analisis stabilitas termal, X-ray Diffractometer (XRD) untuk analisis struktur kristal, dan Scanning Elektron Microscopy - Energy Dispersive X-ray Spectroscopy (SEM-EDX) untuk karakterisasi morfologi dan komposisi unsur. Hasil penelitian menunjukkan bahwa kandungan kobalt yang lebih rendah cenderung menghasilkan ukuran kristal dan partikel yang lebih kecil serta distribusi partikel yang lebih homogen, yang berpotensi meningkatkan jalur difusi ion Li⁺ dan kemampuan laju elektroda, sehingga dapat berkontribusi dalam meningkatkan performa material katoda NMC untuk aplikasi
LIB.
===================================================================================================================================
This research focuses on the synthesis and characterization of Nickel Manganese Cobalt (NMC)-based cathode materials with high nickel and low cobalt content for lithium-ion batteries (LIB). The cathode material plays a crucial role in determining the battery's capacity, cycle stability, and overall performance. NMC is selected due to its high energy density, good thermal stability, and electrochemical properties that can be tailored through variations in transition metal composition. In this study, the synthesis was carried out using the co-precipitation method in a Continuous Stirred Tank Reactor (CSTR) system under a nitrogen atmosphere, employing nickel sulfate (NiSO₄·6H₂O), manganese sulfate (MnSO₄·H₂O), and cobalt sulfate (CoSO₄·7H₂O) as precursors, with sodium hydroxide (NaOH) and ammonium hydroxide (NH₄OH) as pH-controlling and complexing agents. The cobalt content was varied at 5%, 7.5%, 10%, and 12.5% in the formula LiNixMnyCo1-x-yO₂ (x = 0.8) to evaluate its influence on crystal structure, particle morphology, and elemental composition. Characterization was performed using Differential Thermal Analysis–Thermogravimetric Analysis (DTA-TGA) for thermal stability analysis, X-ray Diffractometer (XRD) for crystal structure analysis, and Scanning Electron Microscopy–Energy Dispersive X-ray Spectroscopy (SEM-EDX) for morphology and elemental composition analysis. The results show that lower cobalt content tends to produce smaller crystal and particle sizes with a more homogeneous particle distribution, which potentially enhances Li⁺ ion diffusion pathways and electrode rate capability, thereby contributing to improved NMC cathode performance for LIB applications.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Baterai Ion Lithium, Doping Kobalt, Katoda, Kopresipitasi, Nikel Mangan Kobalt Cathode, Cobalt Doping, Co-precipitation, Lithium Ion Battery, Nickel Manganese Cobalt |
| Subjects: | T Technology > TP Chemical technology > TP155.7 Chemical processes. T Technology > TP Chemical technology > TP255 Electrochemistry, Industrial. |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Dila Kurnia Samsudin |
| Date Deposited: | 29 Jul 2025 06:40 |
| Last Modified: | 29 Jul 2025 06:40 |
| URI: | http://repository.its.ac.id/id/eprint/122725 |
Actions (login required)
 |
View Item |