Anchoring SbxOy/SnO2 nano-heterojunction on reduced graphene oxide as lithium ion batteries anodes with remarkable rate performance and excellent cycle stability

• Published in: Ionics Vol. 27; no. 10; pp. 4205 - 4216
• Main Authors: Zhang, Bin, Zhang, Chun, Liu, Baoyong, Zhou, Xiaozhong, Huang, Guowei
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.10.2021; Springer Nature B.V
• Subjects: Anodes; Chemistry; Chemistry and Materials Science; Condensed Matter Physics; Electric fields; Electrochemical analysis; Electrochemistry; Energy Storage; Graphene; Heterojunctions; Heterostructures; Lithium; Lithium-ion batteries; Optical and Electronic Materials; Original Paper; Reaction kinetics; Rechargeable batteries; Renewable and Green Energy; Surface reactions; Tin dioxide; Nano-heterojunction; Lithium ion batteries; Rate performance; SnO; Reduced graphene oxide (rGO); Sb; O
• ISSN: 0947-7047; 1862-0760
• DOI: 10.1007/s11581-021-04200-z

Constructing the nanometer heterojunction can enhance the surface reaction kinetics and promote the transmission of charge because of internal micro-electric fields of heterogeneous interfaces. Herein, Sb x O y /SnO 2 nano-heterostructures anchored on the surface of reduced graphene oxide (Sb x O y /SnO 2 /rGO) were prepared by a simple one-step solvothermal method. The Sb x O y /SnO 2 /rGO used as anode for lithium ion batteries possesses remarkable rate performance, high discharge, and charge specific capacities of 518.6 and 515.3 mA h g −1 after 1000 cycles at 4000 mA g −1 , respectively, as well as excellent cycle stability (the capacity loss rate per cycle is only 0.00379%). The excellent electrochemical properties of the Sb x O y /SnO 2 /rGO material can be attributed to the successful builds of nano-heterostructures.