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Korean Journal of Metals and Materials > Volume 54(10); 2016 > Article
Korean Journal of Metals and Materials 2016;54(10): 780-786. doi: https://doi.org/10.3365/KJMM.2016.54.10.780
Fabrication of Si/SiOx Anode Materials by a Solution Reaction-Based Method for Lithium Ion Batteries
Hyeon-Woo Yang1, Jung-Ho Lee1, Sang-Chul Jung2, Seung-Taek Myung1, Woo-Seung Kang3, Sun-Jae Kim1
1Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea
2Department of Environmental Engineering, Sunchon National University, Jeonnam 57922, Republic of Korea
3Department of Metallurgical and Materials Engineering, Inha Technical College, Incheon 22212, Republic of Korea
Correspondence  Woo-Seung Kang ,Tel: +82-32-870-2184, Email: wkang651@inhatc.ac.kr
Sun-Jae Kim ,Tel: +82-2-3408-3780, Email: sjkim1@sejong.ac.kr
Received: 17 March 2016;  Accepted: 4 April 2016.  Published online: 5 October 2016.
ABSTRACT
Si/SiOx composite anodes were prepared using a facile solution reaction-based method. Their initial capacity was significantly improved to 1.3 times that of SiOx by incorporating 3 wt% silicon nanoparticles into the SiOx. The capacity retention of the Si/SiOx anodes after 50 charge-discharge cycles was significantly enhanced, to 99%, compared with 8% retention for the pristine silicon anode. These improved results were achieved by combining the advantages of silicon, for high capacity, with SiOx, for cyclic stability. Our current results suggest that this simple solution reaction-based approach is a promising method for fabricating low cost Si/SiOx composite anode materials for lithium ion batteries, which exhibit high electrochemical performance, of more than 1000 mAh/g capacity, and cyclic stability.
Keywords: energy storage materials, sol-gel, electrical properties, electrical, lithium ion battery
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