10th International Aerosol Conference September 2 - September 7, 2018 America's Center Convention Complex St. Louis, Missouri, USA
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Novel Aerosol Method for the Fabrication of Si-MWCNT-C Composite Spheres as Anode Materials for Lithium Ion Battery
HANKWON CHANG, Chan Mi Kim, Sun Kyung Kim, Dae Sup Kil, Hee Dong Jang, Korea Institute of Geoscience and Mineral Resources
Abstract Number: 89 Working Group: Materials Synthesis
Abstract Silicon has attracted extensive attention due to its high theoretical capacity, low discharge potential and non-toxicity as anode materials for lithium ion batteries (LIBs). Here, we suggest a novel aerosol method for the fabrication of Si-MWCNT-C composite spheres as a high-efficient anode material for lithium ion batteries. Si particles were interlinked by MWCNT within droplets sprayed from aqueous glucose solution with Si and MWCNT particles via spray drying method, and then the Si-MWCNT-glucose particles were carbonized at a muffle furnace. The spherical Si-MWCNT-C composites was successfully obtained. The particle size ranged from 2.1 to 3.3 μm in a geometric mean diameter with respect to the concentrations of Si and MWCNT in the precursor. The electrochemical performance was conducted with the Si-MWCNT-C composites as an anode for LIBs. The Si-MWCNT-C composites exhibited very high performance in terms of capacity and cycling stability. After 100 cycles, the capacity of Si-MWCNT-C with 0.4 wt% of MWCNT was maintained to 1042 mAh/g.