Analisis Pengaruh Variasi Temperatur Sintering dan Carbon Coating Pada Recycle Katoda LiFePO4 Terhadap Performa Lithium-Ion Battery

Kusuma, Hizkia Cahya Firdaus Apridyo (2024) Analisis Pengaruh Variasi Temperatur Sintering dan Carbon Coating Pada Recycle Katoda LiFePO4 Terhadap Performa Lithium-Ion Battery. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 5011201095-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2026. Download (4MB) | Request a copy

Abstract

Baterai LFP yang terus-menerus digunakan akan mengalami penurunan kapasitas dan kerusakan sehingga harus diganti dengan baterai LFP yang lain dan lama-kelamaan berakibat menumpuknya limbah baterai LFP. Salah satu cara untuk mengatasi penumpukan limbah baterai LFP adalah daur ulang. Tujuan dari penelitian ini adalah menganalisis pengaruh variasi temperatur sintering pada recycle katoda LiFePO4 terhadap struktur kristal dan morfologi yang terbentuk dan performa elektrokimia baterai ion litium. Regenerasi yang dilakukan menggunakan metode direct regeneration dengan variasi temperatur sintering 750, 700, dan 650°C dan coating karbon menggunakan glukosa dan polypropylene. Proses yang dilakukan pada penelitian ini meliputi proses pre-treatment, regenerasi, dan perakitan baterai. Pengujian yang dilakukan pada penelitian ini adalah uji karakterisasi menggunakan SEM dan XRD serta uji performa elektrokimia menggunakan CV, EIS, dan charge-discharge. Katoda RLFP hasil regenerasi memiliki struktur kristal orthorhombic yang serupa dengan katoda LFP komersial. Hasil XRD menunjukkan bahwa pada temperatur 650°C, regenerasi kurang berjalan sempurna dan hasil kristalinitas paling baik didapatkan pada temperatur 750°C. Katoda RLFP memiliki ukuran partikel kecil yang lebih homogen dibandingkan dengan SLFP. Ukuran partikel RLFP-G-750, G-700, G-650, PP-750, PP-700, PP-650 yang dihitung menggunakan ImageJ berturut-turut adalah 0.854, 0.833, 0.909, 0.933, 0.972, dan 1.215 μm. Jumlah karbon pada katoda RLFP terlampau cukup tinggi dibandingkan dengan jumlah optimum untuk coating karbon yaitu untuk glukosa dan PP masing-masing sebesar 7.6% dan 9.46%. Baterai RLFP-G-650 memiliki kemampuan elektrokimia yang paling baik dengan nilai Rs sebesar 21.601, nilai Rct sebesar 165.3, terbentuk kurva oksidasi dan reduksi saat dilakukan uji CV, dan memiliki charge specific capacity sebesar 56.09 mAh/g dan discharge specific capacity sebesar 52.18 mAh/g pada 0.05C.
================================================================
When LFP battery is continuously used, its capacity will be decreased and eventually broken and must be substituted with a new LFP battery which can lead to LFP battery waste accumulation. A solution to overcome this problem is recycling LFP battery wastes. The purpose of this research are to analyze the effect of sintering temperature variations on recycled LiFePO4 cathode towards its crystal structure and morphology and electrochemical performance of lithium-ion battery. The method used for regeneration is direct regeneration with sintering temperature of 750, 700, and 650°C and using glucose and polypropylene as the carbon coating. The processes carried in this research are pre-treatment , regeneration, and battery assembly. The tests carried in this research are characterization by SEM and XRD and electrochemical performance by CV, EIS, and charge-discharge. The regenerated LFP cathode has an orthorhombic crystal structure which is similar to the commercial LFP cathode. The XRD shows that at 650°C , the regeneration was not excellent dan the best cristallinity was obtained at 750°C. RLFP cathode has a small sized particle and more homogenous compared to SLFP. The particle size of RLFP G-750, G-700, G-650, PP-750, PP-700, PP-650 calculated by ImageJ respectively are 0.854, 0.833, 0.909, 0.933, 0.972, and 1.215 μm. The amount of carbon in the RLFP cathode is too much compared to the optimum value of carbon coating, glucose and PP coating amounts are 7.6% and 9.46 respectively. The RLFP-G-650 has the best electrochemical performance, its Rs value is 21.601, Rct value is 165.3, succesfully formed oxidation and reduction curve after being tested by CV test, and has charge specific capacity 56.09 mAh/g and discharge specific capacity 52.18 mAh/g at 0.05C.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Battery, Electrochemical Performace, LiFePO4 Cathode, Baterai, Katoda LiFePO4, Performa Elektrokimia
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD794.5 Recycling (Waste, etc.) T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2921 Lithium cells. T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL220 Electric vehicles and their batteries, etc.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Hizkia Cahya Firdaus Apridyo Kusuma
Date Deposited:	01 Aug 2024 15:51
Last Modified:	01 Aug 2024 15:51
URI:	http://repository.its.ac.id/id/eprint/112122

Actions (login required)

View Item