@ARTICLE{Shim_Hyun-Woo_Facile_2024, author={Shim, Hyun-Woo and Im, Byoungyong and Joo, Soyeong and Kim, Dae-Guen}, volume={vol. 69}, number={No 1}, journal={Archives of Metallurgy and Materials}, pages={67-72}, howpublished={online}, year={2024}, publisher={Institute of Metallurgy and Materials Science of Polish Academy of Sciences}, publisher={Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences}, abstract={In this study, cobalt oxide (Co3O4) powder was prepared by simple precipitation and heat-treatment process of cobalt sulfate that is recovered from waste lithium-ion batteries (LIBs), and the effect of heat-treatment on surface properties of as-synthesized Co(OH)2 powder was systematically investigated. With different heat-treatment conditions, a phase of Co(OH)2 is transformed into CoOOH and Co3O4. The result showed that the porous and large BET surface area (ca. 116 m2/g) of Co3O4 powder was prepared at 200°C for 12 h. In addition, the lithium electroactivity of Co3O4 powder was investigated. When evaluated as an anode material for LIB, it exhibited good electrochemical performance with a specific capacity of about 500 mAh g–1 at a current density of C/5 after 50 cycles, which indicates better than those of commercial graphite anode material.}, type={Article}, title={Facile Synthesis and Li-Electroactivity of Cobalt Oxide Based on Resources Recovered from Waste Lithium-Ion Batteries}, URL={http://www.czasopisma.pan.pl/Content/130915/PDF-MASTER/AMM-2024-1-13-Dae-Guen%20Kim.pdf}, doi={10.24425/amm.2024.147787}, keywords={Waste lithium-ion battery, Recycling, Co3O4 powder, Anode material}, }