• Login
    View Item 
    •   USU-IR Home
    • Faculty of Mathematics and Natural Sciences
    • Department of Physics
    • Undergraduate Theses
    • View Item
    •   USU-IR Home
    • Faculty of Mathematics and Natural Sciences
    • Department of Physics
    • Undergraduate Theses
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Struktur dan Sifat Elektrokimia Material Katoda LiFePO4/C yang Disintesis dengan Metode Surfactant-Assisted Solid State Reaction

    View/Open
    Fulltext (3.233Mb)
    Date
    2020
    Author
    Sihombing, Santi Novika
    Advisor(s)
    Sembiring, Manis
    Rifai, Abdulloh
    Metadata
    Show full item record
    Abstract
    Penelitian tentang sintesis material katoda LiFePO4/C telah berhasil dilakukan dengan metode Surfactant-Assisted solid state Reaction. Sintesis LiFePO4 dilakukan dengan variasi suhu kalsinasi 600 , 700 , 800 dan LiFePO4/C doping Mangan (x= 0,1 dan x = 0,2). Hasil analisa XRD menunjukkan untuk suhu kalsinasi 600 merupakan suhu optimal sintesis LiFePO4. Pengaruh surfaktan untuk sintesis LiFePO4 hasil XRD menunjukkan LiFePO4 tanpa surfaktan dihasilkan fasa LiFePO4 sebanyak 67.4%, Fe2P sebanyak 18.2% dan Li3PO4 sebanyak 14.3%. Analisa SEM menunjukkan bahwa sampel menggunakan surfaktan menghasilkan partikel yang lebih kecil namun keseragaman partikel tidak terlalu baik dan sampel yang menggunakan doping menghasilkan ukuran butir yang besar. Hasil CV menunjukkan LiFePO4 menghasilkan puncak okidasi dan reduksi tertinggi pada suhu kalsinasi 600 . LiFePO4 doping Mn mengalami kenaikan pada midpoint untuk masing-masing Mn x =0,1 dan x =0,2 yaitu 3,457V dan 3,460V. Sedangkan untuk CD, kapasitas sel baterai terbaik diperoleh pada suhu kalsinasi 600 sebesar 127,21 mAh/g.
     
    Research on the synthesis of the LiFePO4 / C cathode material has been successfully carried out using the Surfactant-Assisted solid state reaction method. The synthesis of LiFePO4 was carried out by varying the calcination temperature of 600, 700, 800 and LiFePO4/C doping Manganese (x = 0.1 and x = 0.2). The results of XRD analysis showed that the calcination temperature of 600 was the optimal temperature for the synthesis of LiFePO4. The effect of surfactants for the synthesis of LiFePO4 from XRD results showed that LiFePO4 without surfactant resulted in 67.4% of LiFePO4, 18.2% of Fe2P and 14.3% of Li3PO4. SEM analysis shows that samples using surfactants produce smaller particles but the particle uniformity is not very good and samples using doping produce large grain sizes. CV results showed that LiFePO4 produced the highest oxidation and reduction peaks at a calcination temperature of 600. LiFePO4 doping Mn increased at the midpoint for Mn x = 0.1 and x = 0.2, namely 3.457V and 3.460V. As for CD, the best battery cell capacity was obtained at a calcination temperature of 600 at 127.21 mAh/g.

    URI
    http://repositori.usu.ac.id/handle/123456789/28109
    Collections
    • Undergraduate Theses [1320]

    Repositori Institusi Universitas Sumatera Utara (RI-USU)
    Universitas Sumatera Utara | Perpustakaan | Resource Guide | Katalog Perpustakaan
    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of USU-IRCommunities & CollectionsBy Issue DateTitlesAuthorsAdvisorsKeywordsTypesBy Submit DateThis CollectionBy Issue DateTitlesAuthorsAdvisorsKeywordsTypesBy Submit Date

    My Account

    LoginRegister

    Repositori Institusi Universitas Sumatera Utara (RI-USU)
    Universitas Sumatera Utara | Perpustakaan | Resource Guide | Katalog Perpustakaan
    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV