Effects of Binders on the Electrochemical Performance of SnO2/graphene Anode Material
CHEN Ran1, YU Zhen-Jun1, ZHAN Liang1, WANG Yan-Li1, ZHANG Hong-Gang1, SHI Shuo-Si1, LIU Yue2
(1.State Key Laboratory of Chemical Engineering, Key Laboratory for Specially Functional Polymers and Related Technology of Ministry of Education, East China University of Science and Technology, Shanghai 200237，China;2.School of Chemical Engineering and Technology, Wuhan University of Science and Technology, Wuhan 430081，China)
Abstract The effect of different binders (carboxymethylcellulose/styrene-butadiene rubber and polyvinylidene fluoride) on the electrochemical performance of SnO2 and SnO2/graphene anode electrode was investigated due to the large volume change and low electric conductivity of SnO2 anode electrode in charge-discharge process. The results can be concluded as follows: 1)The first discharge capacity and capacity retention of SnO2 anode electrode using CMC/SBR as binder after 30 cycles at 200 mA/g were 581.3 mA·h/g and 37.6%, which were higher than SnO2 anode electrode using PVDF as binder(135.3 mA·h/g and 10.6%);2)The first discharge capacity and capacity retention of SnO2/graphene anode electrode using CMC/SBR as binder after 100 cycles at 200 mA/g were 702.3 mA·h/g and 43.8%, which were higher than SnO2/graphene anode electrode using PVDF as binder(552 mA·h/g and 32.8%).
CHEN Ran, YU Zhen-Jun, ZHAN Liang, WANG Yan-Li, ZHANG Hong-Gang, SHI Shuo-Si, LIU Yue.Effects of Binders on the Electrochemical Performance of SnO2/graphene Anode Material[J] Chemcial Industry and Engineering, 2014,V31(3): 44-49
2014, Vol. 31 
