Synthesis and Li-ion storage performance of SnO2/N,S-rGO nanocomposites
WANG Ting-ting
LI Rong
GOU Xing-long
Abstract：Although Tin dioxide has been regarded as one of the most promising anode materials for lithium ion battery(LIBS)due to its high theoretical capacity,its poor conductivity and huge volume variation during lithiation/delithiation process prevent the practical application in LIBS. Herein,SnO2/N,S-rGO nanocomposites are prepared by a combination of hydrothermal and cal-cination method using SnCl4·5H2O,graphene oxide,and urea as the raw materials.When eval-uated as an anode materials for lithium ion batteries,SnO2/N,S-rGO nanocomposites deliever a capacity of 1266.3 mAh·g -1at 200 mA·g -1after 200 cycles;Moreover,the capacity could re-main 871mAh·g -1at 1 A·g -1over 150 cycles,and 577mAh·g -1at a high current density of 5A·g -1,exhibiting good lithium storage properties.The improvement of performance benefit from the synergistic effect of N,S-codoped graphene(NSG)and SnO2,coupled with layered structure.
Keywords：Li-ion batteryNitrogensulfur co-dopedGraphene
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 15-20 )