Preparing graphene based metal modified composite electrode and usage of lithium batteries

In this study, graphene oxide and reduced graphene oxide were synthesized by different methods and their chemical structures were illuminated by X-ray photoelectron spectroscopy. Especially, graphene oxide synthesized by Hummers and Brodie methods yielded reduced graphene oxide by both thermal reduction and chemical reduction. The electrical conductivity and electron conductivity of the r Co/Co3O4 and Al2O3 were synthesized and these metal oxides were mixed with graphene oxide and reduced graphene oxide and Co3O4/Al2O3-rGO nanocomposite electrode material was prepared and used as an anode material for lithium ion batteries. The morphological, chemical and electrical properties of all synthesized materials for the preparation of anode half cells were determined by scanning electron microscopy, X-ray photoelectron spectroscopy and electrochemical impedance spectroscopy respectively. Anode compartment for test cells was prepared from these nanocomposite materials for lithium ion batteries. When the discharge-cycle number data of anode test cells prepared from graphene oxide, reduced graphene oxide, single metal oxide composite material and binary metal oxide graphene oxide composite material were compared, the maximum discharge capacity was 383 mAh/g-1 prepared with Co3O4/Al2O3-rGO the anode was obtained from the test cell.