Mass-Production of Electrospun Carbon Nanofiber Containing SiO<SUB>x</SUB> for Lithium-Ion Batteries with Enhanced Capacity
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초록
내용
The lithium-ion battery (LIB) has been received many attentions due to its recyclability and durability. Recently studies focused on silicon based materials that exhibits a ten times higher capacity than carbon materials. Unfortunately, the silicon exhibites a volumetric change. Although SiOx based materials provide lower capacity than single silicon, their volumetric expansion is lower since the oxygen prevents the phase transition of silicon crystalline. Also the SiOx structure includes Si elements, the material provides a higher capacity than carbon based materials. Herein, we prepare the Mass Production of a SiOx carbon nanofiber from syringeless electrospinning. A polymeric solution containing poly-acrylonitrile (PAN) as a carbon source and tetraethylorthosilicate (TEOS) as a SiOx source is adopted in a syringeless electro spinning system. The SiOx carbon nanofibers after calcination exhibit a higher capacity and higher durability of cycle retention for LIB.