Pengaruh Temperatur Kalsinasi dan Kadar Karbon pada Material LiFePO4/PANI Terhadap Performa Elektrokimia Katoda Baterai Ion Lithium

Nugraha, I Made Ananta (2019) Pengaruh Temperatur Kalsinasi dan Kadar Karbon pada Material LiFePO4/PANI Terhadap Performa Elektrokimia Katoda Baterai Ion Lithium. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada penelitian ini telah berhasil disintesis material katoda Lithium Ferro Phosphate (LiFePO4) dengan pelapisan tunggal karbon PANI dan pelapisan ganda, PANI dan gas asetilen pada variasi temperatur 670◦C, 700◦C, dan 750◦C. PANI yang ditambahkan sebagai prekursor karbon sebesar 10 wt% dari massa produk LiFePO4 yang akan dihasilkan berperan sebagai material konduktif. Sintesis dilakukan dengan metode solid-state reaction menggunakan wet-milling. Proses kalsinasi dilakukan dengan memvariasikan penambahan gas asetilen. Hasil XRD menunjukan terbentuknya fasa LiFePO4 dengan terdapat fasa sekunder Li4P2O7. Hasil EDX menunjukkan pelapisan tunggal PANI manghasilkan kadar karbon tertinggi 5.27 wt% pada temperatur kalsinasi 700◦C dan pelapisan ganda PANI-Gas asetilen 9.10 wt% pada temperatur 750◦C. Pelapisan tunggal dengan karbon PANI pada temperatur 670◦C memperoleh hasil yang optimal pada pengujian performa elektrokimia dengan nilai resistansi perpindahan muatan (Rct) dan polarisasi potensial redoks yang rendah sebesar 515.8 Ω dan 0.241 V serta kapasitas spesifik discharge yang paling tinggi sebesar 107.164 mAhg-1 pada 0.001 C.================================================================================================================ In this research the synthesis of Lithium Ferro Phosphate (LiFePO4) was
done with a single coating PANI and double coating, PANI and acetylene gas in various temperature 670◦C, 700◦C, and 750◦C. PANI which is added as a carbon precursor of 10 wt% of total products of LiFePO4 that will be acts as a conductive materials. The synthesis was carried out by solid-state reaction method using wet-milling. The calcination process is carried out by varying the addition of acetylene gas. XRD results showed the formation of LiFePO4 phase with the secondary phase Li4P2O7. The EDX results showed a single PANI coating produced the highest carbon content of 5.27 wt% at 700◦C and PANI-Gas acetylene double coating produced 9.10 wt% at 750◦C. Single coating PANI at 670◦C obtained best results in electrochemical performance testing with low charge transfer resistance (Rct) and voltage separation of 515.8 Ω and 0.241 V and highest specific discharge capacity of 107.164 mAh/g at 0.001 C.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Baterai Ion Lithium, Gas Asetilen, Katoda,LiFePO4, PANI, Performa elektrokimia, temperatur
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2921 Lithium cells.
Divisions:	Faculty of Industrial Technology > Industrial Engineering > 26101-(S2) Master Thesis
Depositing User:	Nugraha I Made Ananta
Date Deposited:	22 Jul 2026 04:01
Last Modified:	22 Jul 2026 04:01
URI:	http://repository.its.ac.id/id/eprint/69387

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