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Pengaruh Kadar Acetylene Black terhadap Kinerja Baterai Ion Lithium Setengah Sel Berbasis Anoda Komposit LTO/Si = Effect of Acetylene Black Content to Performance of Lithium Ion Battery Half Cell Anode Based Composite LTO/Si

Normawanto; Bambang Priyono, supervisor; Achmad Subhan, supervisor; Anne Zulfia Syahrial, examiner; Badrul Munir, examiner (Fakultas Teknik Universitas Indonesia, 2016)

 Abstract

ABSTRAK
Penelitian tentang baterai ion lithium telah berkembang dengan pesat, sehingga banyak material yang telah dikembangkan untuk meningkatkan performa baterai ion lithium. Pada penelitian ini material Li4Ti5O12/Si telah berhasil disintesis dengan penambahan berat silikon sebesar 20% dan penambahan lithium berlebih sebesar 3%. Proses sintering dilakukan pada suhu 750°C untuk mendapatkan serbuk Li4Ti5O12/Si, kemudian dikarakterisasi dengan SEM-EDS dan XRD. Variasi kadar acetylene black (5%, 10%, dan 15%) dilakukan pada fabrikasi baterai setengah sel dan diuji dengan EIS, CV, dan CD. Hasil yang didapat bahwa penambahan silikon dan lithium mempengaruhi morfologi pembentukan TiO2 dan Li4Ti5O12 serta meniadakan terbentuknya TiO2 rutile. Namun masih terdapat sedikit produk sampingan berupa Li2TiO3. Metode sol-gel dengan kombinasi teknik ball milling menghasilkan ukuran partikel sebesar 2,091-26,607 μm. Kadar acetylene black sebesar 15% memberikan nilai impedansi terendah sebesar 8,87 Ω dan konduktivitas 1,169x10-2 S/cm pada saat dalam bentuk lembaran. Sedangkan dalam bentuk baterai half cell, acetylene black sebesar 10% memberikan nilai impedansi terendah sebesar 40,01 Ω. Kapasitas spesifik charge/discharge semakin naik dengan meningkatnya kadar acetylene black, namun membuat puncak arus menurun.

ABSTRACT
Research on lithium ion batteries has grown rapidly so that a lot of material that has been developed to improve the performance of lithium ion batteries. In this research material Li4Ti5O12/Si has been successfully synthesized with the addition of 20 wt.% Si and Li excess 3%. Sintering process is carried out at a temperature of 750°C to obtain powder Li4Ti5O12/Si, then characterized by SEMEDS and XRD. Variations levels of acetylene black (5%, 10%, and 15%) is carried out on fabrication of half-cell battery and tested with the EIS, CV, and CD. The results that the addition of silicon and lithium affects the morphology formation of TiO2 and Li4Ti5O12 and negate the formation of rutile TiO2. However, there is little by products such Li2TiO3. Sol-gel method with a combination of ball milling techniques produce a particle size of 2.091 to 26.607 μm. Acetylene black levels by 15% gives the lowest value of 8.87 Ω impedance and conductivity 1.169x10-2 S/cm when in sheet form. Whereas in the form of half-cell battery, acetylene black of 10% gives the lowest value of 40.01 Ω impedance. Specific capacity charge/discharge further increase with rising levels of acetylene black, but it makes the current peak decreases.

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 Metadata

Collection Type : UI - Skripsi Membership
Call Number : S62202
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Publishing : Depok: Fakultas Teknik Universitas Indonesia, 2016
Cataloguing Source LibUI ind rda
Content Type text
Media Type unmediated ; computer
Carrier Type volume ; online resource
Physical Description xiv, 61 pages : illustration ; 30 cm. + appendix
Concise Text
Holding Institution Universitas Indonesia
Location Perpustakaan UI, Lantai 3
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S62202 14-25-32529061 TERSEDIA
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No review available for this collection: 20422253
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