Mo-SnO2/rGO composite as high performance anode material for lithium ion batteries

Abstract

The Molybdenum-Tin dioxide/reduced graphene oxide (Mo-SnO2/rGO) composite has been facilely synthesized through a simple chemical reduction method It is shown that the Mo-SnO2 nanoparticles are homogeneously anchored onto rGO sheets Mo adding can enhance the interfacial interaction between Mo-SnO2 nanocrystals and rGO sheets and improve the electrical conductivity of the composite which lead to the excellent electrochemical performance of Mo-SnO2/rGO composite Moreover Mo adding can facilitate the conversion reaction between Li2O and SnO2 during cycling leading to the higher capacity than the theoretical capacity Via electrochemical tests the results shows that 5% Mo-SnO2/rGO has the best electrochemical performance corresponding to high capacity (1194/872 mAh/g at first cycle) good cycling stability about 89 1% retention (758 1 mAh/g after 100 cycles) high retention (93 8%) after fast charge/discharge

Date of Award	2020
Original language	English
Supervisor	Jow-Lay Huang (Supervisor)