“…Among the various transition metal oxides explored, Co 3 O 4 is one of the most promising candidates as anode material for LIBs for its high theoretical capacity (890 mAhg –1 ) and excellent cycle life. − ,,,− However, because of the high cost and toxic nature of cobalt intensive efforts have been made to replace cobalt partially from Co 3 O 4 by a cost-effective and eco-friendly metal without loss of its electrochemical properties. In this respect, cobalt based ternary metal oxide, ZnCo 2 O 4 is very attractive as zinc is cheap, abundant and electrochemically active toward lithium. − Similar to Co 3 O 4 , it is a normal spinel, where the Zn 2+ occupying the tetrahedral sites and Co 3+ occupying the octahedral sites. As the morphology and microstructures of nanostructure materials are crucial for their electrochemical performance, ZnCo 2 O 4 with varying morphology, which includes 1D wire and their 3D assembly, tubes and 2D disk have been developed and their performances as anode material in LIBs have been evaluated. − Qiu et al, Hu et al, and Li et al reported the ethylene glycol directed glycolate intermediate based hydrothermal/solvothermal synthesis of ZnCo 2 O 4 random flake, microsphere, and yolk-shelled ZnCo 2 O 4 microspheres, respectively.…”