Studi Eksperimental Pengaruh Penambahan Filler Al2O3 pada Elektrolit Padat Berbasis Polymer Blend Chitosan-PEO Terhadap Konduktivitas Ioniknya

Taniyara, Dirgha Hedie (2023) Studi Eksperimental Pengaruh Penambahan Filler Al2O3 pada Elektrolit Padat Berbasis Polymer Blend Chitosan-PEO Terhadap Konduktivitas Ioniknya. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penggunaan solid polymer electrolyte (SPE) pada baterai litium dapat membantu mengatasi berbagai masalah keamanan yang ditimbulkan dari penggunaan elektrolit cair konvensional. Dengan potensi yang dimiliki, penggunaan SPE masih terkendala rendahnya konduktivitas ion pada temperatur ruang. Pada penelitian ini digunakan polymer blend Chitosan – PEO digunakan sebagai polimer host, LiClO4 digunakan sebagai sumber ion litium. Al2O3 ditambahkan sebagai filler untuk mengetahui efeknya terhadap konduktivitas ion dari SPE. Film SPE diproduksi dengan metode solution casting. Pada penelitian ini material prekursor dilarutkan dalam asam asetat 1%. Kemudian nanofiller Al2O3 ditambahkan dengan presentase berat Al2O3 adalah 3%, 5%, 7% dari massa total SPE murni. Konduktivitas ion dari SPE diukur menggunakan electrochemical impedance spectroscopy (EIS), perubahan kristalinitas material dikarakterisasi dengan X-Ray Diffraction (XRD), morfologi permukaan material dengan Scanning Electron Microscope (SEM) dan Fourier Transform Infrared (FTIR) utuk mengamati gugus fungsi dalam material. Hasil penelitian ini menunjukkan penambahan nanofiller Al2O3 pada SPE sampai dengan varias 5%, memberikan peningkatan pada konduktivitas ion dimana pada variasi 7% konduktivitas ion SPE mengalami penurunan. Mekanisme peningkatan konduktivitas ion yang kemungkinan besar terjadi adalah interaksi lewis acid base surface group dari Al2O3 bereaksi dengan polimer membantu disosiasi garam serta memnyediakan pathway baru untuk transportasi kation. Uji FTIR membuktikan keberadaan gugus fungsi material penyusun dan hasil SEM menunjukkan homogenitas kedua polimer host.
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Utilization of solid polymer electrolyte (SPE) in lithium batteries can help overcome various safety issues arising from the use of conventional liquid electrolytes. With its potential, the use of SPE is still constrained by low ion conductivity at room temperature. In this study, Chitosan - PEO polymer blend was used as the host polymer, LiClO4 was used as the lithium ion source. Al2O3 was added as filler to determine its effect on the ion conductivity of SPE. The SPE film was produced by solution casting method. In this study, the precursor material was dissolved in 1% acetic acid. Then Al2O3 nanofiller was added with the weight percentage of Al2O3 is 3%, 5%, 7% of the total mass of pure SPE. Ion conductivity of SPE was measured using electrochemical impedance spectroscopy (EIS), changes in material crystallinity were characterized by X-Ray Diffraction (XRD), material surface morphology by Scanning Electron Microscope (SEM) and Fourier Transform Infrared (FTIR) to observe functional groups in the material.The results of this study showed the addition of Al2O3 nanofillers to SPE up to 5% variation, giving an increase in ion conductivity where at 7% variation the ion conductivity of SPE decreased. The most likely mechanism for increasing ion conductivity is the interaction of the Lewis acid base surface group of Al2O3 reacting with the polymer helps the dissociation of salts and provides a new pathway for cation transportation. FTIR tests proved the presence of functional groups of the constituent materials and SEM results showed homogeneity of both polymers

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Baterai litium, Solid polymer electrolyte, Al2O3, konduktivitas ion; Lithium battery, Solid polymer electrolyte, Al2O3, ion conductivity Lithium battery, Solid polymer electrolyte, Al2O3, ion conductivity
Subjects:	Q Science > QC Physics > QC173.4.C63 Composite materials T Technology > TP Chemical technology > TP1140 Polymers T Technology > TP Chemical technology > TP255 Electrochemistry, Industrial.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User:	Dirgha Hedie Taniyara
Date Deposited:	05 Oct 2023 08:28
Last Modified:	05 Oct 2023 08:28
URI:	http://repository.its.ac.id/id/eprint/103506

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