Effect of graphene nanosheet addition on the electrochemical performance of anode materials for lithium-ion batteries.

摘要: Abstract The structure and electronic properties of graphene nanosheet (GNS) render it a promising conducting agent in lithium-ion battery. A graphite electrode loaded with GNS exhibits superior electrochemical including higher rate performance, increased specific capacity better cycle performance compared that obtained by adding the traditional agent–acetylene black. high-quality sp2 carbon lattice, quasi-two-dimensional crystal high aspect ratio provide basis for continuous network to counter decrease conductivity increasing number cycles, guarantee efficient fast transport throughout anode. Effects loading content on are investigated results indicate amount conductive additives needed is decreased using GNS. kinetics mechanism lithium-storage GNS-loaded explored series testing techniques.