Analisis Sifat Elektrokimia dan Karakteristik Pvdf-Hfp/Libob dan Pvdf-Hfp/Litfsi sebagai Elektrolit Padat pada Baterai Litium Coin Cell
| Main Author: | Samosir, Lamhot Romaida |
|---|---|
| Other Authors: | Sebayang, Kerista, Ratri, Christin Rina |
| Format: | Bachelors application/pdf |
| Bahasa: | ind |
| Terbitan: |
Universitas Sumatera Utara
, 2019
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| Subjects: | |
| Online Access: |
http://repositori.usu.ac.id/handle/123456789/21014 |
Daftar Isi:
- 101 Halaman
- Sintesis lembaran polimer elektrolit padat LiBOB / PVDF-HFP dan LiTFSi / PVDF-HFP menggunakan metode Solution Cast Technique telah dilakukan. Bahan dasar yang digunakan adalah PVDF-HFP, DMAC, LiBOB, dan LiTFSi. Dalam penelitian ini fungsi LiBOB dan LiTFSI adalah garam lithium, di mana penambahan setiap LiBOB bervariasi 0%, 20%, 40%, 60% dan 80%, dan untuk LiTFSi bervariasi 0%, 20%, 40%, 60% . Pengujian baterai menggunakan Cylic voltammetry (CV) untuk menganalisis elektrokimia dalam baterai, dan perilaku Konduktivitas dipelajari dengan AC impedance spectroscopy (EIS). Morfologi permukaan membran dikarakterisasi menggunakan FE-SEM, X-Ray Difraction (XRD) untuk melihat fase. Hasil setengah baterai sel dalam tes CV menunjukkan reaksi reduksi dan reaksi oksidasi. Dan hasil uji EIS menunjukkan konduktivitas ionik tertinggi pada LiTFSI 60%, yaitu 1,15 x 10-9 S / cm. Hasil analisis FE-SEM telah menunjukkan bahwa penambahan garam litium berperan dalam pembentukan membran elektrolit polimer padat. Hal ini karena penambahan garam litium sangat mempengaruhi kepadatan pada morfologi lembaran polimer elektrolit. Dalam pengujian XRD ada perubahan fase dalam setiap penambahan garam lithium. Didapat bahwa aglomerasi pada garam litium (LIBOB dan LITFSI) menyebabkan penurunan konduktivitas ionik.
- The synthesis of LiBOB / PVDF-HFP and LiTFSi / PVDF-HFP solid electrolyte polymer sheets using the solution cast technique method has been done. The basic materials used are PVDF-HFP, DMAC, LiBOB, and LiTFSi. In this study the functions of LiBOB and LiTFSI are lithium salts, where the addition of each LiBOB varies 0%, 20%, 40%, 60% and 80%, and for LiTFSi varies 0%, 20%, 40%, 60% . Battery testing uses Cyclic voltammetry (CV) to analyze electrochemistry in batteries, and Conductivity behaviour was studied with AC impedance spectroscopy (EIS). Surface morphology of the membrane was characterized using FE-SEM, X-Ray Diffraction (XRD) to see the phase. The results of half the cell battery in the CV test showed a reduction reaction and an oxidation reaction. And the results of the EIS test showed the highest ionic conductivity in LiTFSI 60%, namely 1.15 x 10-9 S / cm. FE-SEM analysis results have shown that lithium salts addition played a role in formation on solid polymer electrolyte membrane this is because the addition of lithium salt greatly influences density on the morphology of electrolyte polymer sheets. In XRD testing there is a phase change in each addition of lithium salt. It was also studied that agglomeration of lithium salts (LIBOB and LITFSI) produced in decreasing of ionic conductivity.