Preparation and performance of Si-carbon composite
DONG Ai-xiang
SHEN Long
QIAO Yong-min
Abstract：Si-carbon composite anode materials was synthesized by emulsified asphalt and solid bi-tuminite as coating agent,respectively.The composite was analyzed by XRD,SEM and cyclic voltammetry etc.The morphology of the composite coated with emulsified asphalt was regular and globe-like,with the first capacity of 522 mAh/g,coulombic efficiency of 88.8% and average loss 1.6 mAh/g weekly after 10 cycles.However,the morphology of the composite coated with solid bituminite was irregular with first capacity of 480 mAh/g and coulombic efficiency of 87.9%and average loss 1.9 mAh/g weekly after 10 cycles.The overall performance of the former is bet-ter than the latter.
Keywords：Si-carbon composite anode materialsemulsified asphaltsolid bituminiteLi-ion bat-terycoating
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 119-122 )