Studies on the Electrochemical Behavior of Sio/C Anode Materials by AC Impedance Method

Jing Wang; Jia Ming Tian; Jun Cong Wei; Chun Mei Wang

doi:10.4028/www.scientific.net/AMR.690-693.967

Paper Titles

Effect of Argon Gas Flow on the Thermal Field in a Directional Solidification System for Multi-Crystalline Silicon
p.945

Effect of Sodium-Based Slag Treatment on the Distribution of Impurities in Metallurgical Grade Silicon
p.949

Maximized On-Demand Hydrogen Generator Design
p.954

Purification of Silicon by Solvent Refining with Si-Sn Alloy
p.962

Studies on the Electrochemical Behavior of Sio/C Anode Materials by AC Impedance Method
p.967

Summarize the Studies on Improving the Electrochemical Performance of Spinel LiMn₂O₄
p.971

Temperature Distribution of Multi-Crystalline Silicon Ingots in the Directional Solidification Process
p.977

Cathode Material Li [Li_0.2 Mn_0.44Ni_0.18Co_0.18]O₂ Synthesized by Molten Salt Method
p.981

Fabrication of Micro DMFC Stack Using MEMS Technology
p.985

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Studies on the Electrochemical Behavior of Sio/C Anode Materials by AC Impedance Method

Abstract:

SiO-based materials as a new anode material has attracted widespread attention in lithium-ion battery industry for their high theoretical specific capacities. In this work, the SiO/C composites were prepared by a modified stöber method with TEOS and organic compounds (epoxy resin and sugar) as raw materials. The electrochemical performance of the prepared SiO/C composites were investigated by electrochemical charge/discharge tests and AC impedance method. As carbon source, epoxy resin can make the SiO/C composite with a higher specific capacity and stable electrode structure during charge/discharge process. The EIS results reveal that the SiO/C composite electrode derived from epoxy resin exhibits a higher lithium ion diffusion coefficient.