DAUR ULANG LITIUM DARI KATODA BATERAI IO LITIUM BEKAS MENGGUNAKAN METODE HIDROMETALURGI DENGAN PELARUT ORGANIK RECOVERY OF LITHIUM FROM WASTE CATHODE MATERIALS OF SPENT LITHIUM-ION BATTERY USING HYDROMETALLLURGY METHODE WITH ORGANIC SOLVENTS

• Main Author: Rachmawati, Titi
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/68564
• Institution: Institut Teknologi Bandung

The recycling process of electronic waste, especially battery waste, follows the urban mining method to obtain materials from waste treatment and waste management. The cathode is one of the components in the battery that can be recycled to obtain valuable metals, including lithium. Recycling lithium using the hydrometallurgical method has a high recovery efficiency, but this method is not environmentally friendly because of the use of inorganic solvents in the process. This research studied the effect of solution temperature, acetic acid concentration, the addition of glucose as a reducing agent, and lithium recovery by precipitation using sodium carbonate (Na2CO3). The stages of this research are disassembly, discharging, dismantling, pretreatment, leaching, and precipitation. In the leaching process without adding glucose, the optimum condition was obtained at a concentration of 3.5 M acetic acid, solution temperature of 60°C, with the highest leaching efficiency of 61%. Meanwhile, with the addition of glucose as a reducing agent, the optimum conditions were obtained at a concentration of 3.5M acetic acid, 0.5M glucose, and a solution temperature of 70°C, with the highest lithium leaching efficiency of 89%. The addition of glucose as a reducing agent increased the leaching efficiency by 28% compared to without the addition of glucose. In lithium precipitation, the relative purity of Li2CO3 powder is 1.26%. The use of acetic acid and glucose as organic solvents that are environmentally friendly, renewable, and inexpensive provides promising prospects for recycling lithium from the cathode of spent lithium-ion batteries.