首页|Sol-gel synthesis of nanometer silicon/silicon suboxide/carbon anode material
Sol-gel synthesis of nanometer silicon/silicon suboxide/carbon anode material
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
A stacked Si/SiOx/C composite anode material with carbon-coated structure was prepared by sol-gel method combined with carbothermal reduction using organic silicon.The results of X-ray diffractometry,scanning electron microscopy,and elemental analysis show that the Si/SiOx/C material is a secondary particle with a porous micronanostructure,and the presence of nanometer silicon does not affect the carbothermal reduction and carbon coating.Electrochemical test results indicate that the specific capacity and first coulombic efficiency of SiOx/C composite with nanometer silicon can be increased to 1 946.05 mAh/g and 76.49% ,respectively.The reversible specific capacity of Si/SiOx/C material blended with graphite is 749.69 mAh/g after 100 cycles at a current density of 0.1 C,and the capacity retention rate is up to 89.03% .Therefore,the composite has excellent electrochemical cycle stability.
sol-gel methodnanometer siliconsilicon suboxideanode material
QIN Tong、WANG Zheng、LI Zhengzheng
展开 >
Carbon Research Institute,Baowu Carbon Technology Co.,Ltd.,Shanghai 201999,China
NETL
NSTL
万方数据
