title: Electrochemical properties of chemically processed SiO x as coating material in lithium-ion batteries with Si anode.
abstract: A SiO x coating material for Si anode in lithium-ion battery was processed by using SiCl4 and ethylene glycol. The produced SiO x particles after heat treatment at 725°C for 1 h were porous and irregularly shaped with amorphous structure. Pitch carbon added to SiO x was found to strongly affect solid electrolyte interphase stabilization and cyclic stability. When mixed with an optimal amount of 30 wt% pitch carbon, the SiO x showed a high charge/discharge cyclic stability of about 97% for the 2nd to the 50th cycle. The initial specific capacity of the SiO x was measured to be 1401 mAh/g. On the basis of the evaluation of the SiO x coating material, the process utilized in this study is considered an efficient method to produce SiO x with high performance in an economical way.
authors: Institute/Faculty of Nanotechnology & Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of Korea.
authors: Hee-June
authors: HJ
authors: Jeong
authors: Institute/Faculty of Nanotechnology & Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of Korea.
authors: Hyeon-Woo
authors: HW
authors: Yang
authors: Institute/Faculty of Nanotechnology & Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of Korea.
authors: Kang-Seop
authors: KS
authors: Yun
authors: Institute/Faculty of Nanotechnology & Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of Korea.
authors: Eul
authors: E
authors: Noh
authors: Department of Environmental Engineering, Sunchon National University, Suncheon, Jeonnam 540-742, Republic of Korea.
authors: Sang-Chul
authors: 0000-0002-7369-7879
authors: SC
authors: Jung
authors: Department of Metallurgical and Materials Engineering, Inha Technical College, Incheon 402-751, Republic of Korea.
authors: Wooseung
authors: W
authors: Kang
authors: Institute/Faculty of Nanotechnology & Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of Korea.
authors: Sun-Jae
authors: 0000-0002-7908-7086
authors: SJ
authors: Kim
mesh_terms: D011211:Electric Power Supplies; D004563:Electrochemistry