Analisis Pengaruh Rasio Molar dan Temperatur Solid State Sintering pada Regenerasi Katoda Baterai Bekas Lithium Nickel Manganese Cobalt Oxides (NMC 111)

Yulamda, Infimum (2024) Analisis Pengaruh Rasio Molar dan Temperatur Solid State Sintering pada Regenerasi Katoda Baterai Bekas Lithium Nickel Manganese Cobalt Oxides (NMC 111). Masters thesis, Institut Teknologi Sepuluh Nopember.

Text 6011222011-Master-Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2026. Download (7MB) | Request a copy

Abstract

Baterai lithium ion (LIB) adalah penyimpan energi yang banyak digunakan karena memiliki densitas energi tinggi, memory effect dan self-discharge rendah serta stabilitas cycling yang baik. Terdapat kurang lebih 180 ribu ton lithium-ion yang telah habis masa dengan 40 % dari penggunaan baterai Lithium berjenis baterai Nikel. Penelitian ini mengusulkan penggunaan metode solid state sintering untuk meregenerasi bahan katoda Lithium Nickel Manganese Cobalt Oxide (LiNi0,3Mn0,3Co0,3O2) yang terdegradasi dari baterai lithium ion (LIB). Baterai LIB diregenerasi tanpa mengambil unsur murninya akan tetapi dengan menambahkan doping Lithium agar struktur kembali ke asalnya dengan menggunakan litium karbonat sebagai sumber litiumnya. Proses regenerasi dilakukan dengan menambahkan lithium dengan ratio transisi metalnya (Li/TM = 1.05:1; 1.10:1; 1.15:1; 1.20:1), dan temperatur sintering (700˚C, 750˚C, 800˚C dan 850˚C). Hasilnya menunjukan variasi dengan Li/TM : 1.10 dan temperatur sintering 800˚C memiliki performa elektrokimia paling baik dengan discharge capacity 124,87 mAh/g pada 0.1C dan 111,59 mAh/g pada 0.5C serta memiliki capacity retention 94,7% setelah 50 siklus. Hasil ini memiliki efisiensi dan emisi yang lebih rendah karena prosesnya yang singkat dan tidak memerlukan ekstraksi ion.
====================================================================================================================================================================================
Lithium-ion batteries (LIBs) are widely used energy storage devices due to their high energy density, low memory effect, low self-discharge, and good cycling stability. Approximately 180,000 tons of lithium-ion batteries have reached their end of life, with 40% of these being nickel-based lithium batteries. This study proposes the use of a solid-state sintering method to regenerate the degraded cathode material, Lithium Nickel Manganese Cobalt Oxide (LiNi0,3Mn0,3Co0,3O2), from lithium-ion batteries. The LIBs are regenerated without extracting their pure elements but by adding lithium doping to restore the original structure using lithium carbonate as the lithium source. The regeneration process involves adding lithium with varying transition metal ratios (Li/TM = 1.05:1; 1.10:1; 1.15:1; 1.20:1) and sintering temperatures (700°C, 750°C, 800°C, and 850°C). The results show that the variation with Li/TM: 1.10:1 and a sintering temperature of 800°C exhibits the best electrochemical performance, with a discharge capacity of 124,87 mAh/g at 0.1C and 111,59 mAh/g at 0.5C, as well as a capacity retention of 94,7 % after 50 cycles.efficiency and lower emissions due to its brief process that doesn't require ion extraction.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Direct Recovery, Solid State Sintering, Lithium-ion battery (LIB), LiNi0,3Mn0,3Co0,3O2 (NMC 111). Direct Recovery, Solid State Sintering, Lithium-ion battery (LIB), LiNi0,3Mn0,3Co0,3O2 (NMC 111).
Subjects:	T Technology > TP Chemical technology > TP255 Electrochemistry, Industrial.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 27101-(S2) Master Thesis
Depositing User:	Infimum Deviasi Yulamda
Date Deposited:	07 Aug 2024 07:37
Last Modified:	07 Aug 2024 07:37
URI:	http://repository.its.ac.id/id/eprint/111730

Actions (login required)

View Item