Electrochemical performance of Mn3O4 nanorods by N-doped reduced graphene oxide using ultrasonic spray pyrolysis for lithium storage

Abstract

The crumpled N-doped reduced graphene oxide wrapped Mn3O4 nanorods (Mn-NrGO) composite are synthesized via a combination of spray pyrolysis and a hydrothermal process for lithium ion batteries. The Mn3O4 nanorods are uniformly dispersed in the conductive matrix of crumpled N-doped reduced graphene oxide, forming a uniform wrapped composite and stopping them from restacking, which synergistically enhanced the Li+ ion conductivity. The well-defined Mn3O4 nanorods, strong interaction between Mn3O4 and NrGO, and highly graphitic properties of Mn-NrGO result in superior reversible capacity, long cycle life, and superior rate performance of approximately 1500 mAh/g at 0.1 C after 100 cycles and >660S mAh/g at 1.0 C after 500 cycles.