Physical and electrochemical properties of SiOx/C composites prepared by a combination of Spray pyrolysis and high energy ball milling

Anara Molkenova, Izumi Taniguchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Spray pyrolysis has been widely used to prepare homogeneous and uniform ceramic powders with high purity. In this study, we are proposing ultrasonic spray pyrolysis followed by heat treatment to produce SiOx/C composite powders, where sucrose was used as a carbon source. Furthermore, high energy ball milling of the as-prepared powders in the presence of acetylene black was conducted to activate its electrochemical properties by reducing the particle size and improving the functionalization of the SiOx composite particles. SiOx/C nanocomposite finally obtained at a sucrous concentration of 0.1 mol L'1 showed superior electrochemical properties, and the SiOx/C nanocomposite electrode delivered the first discharge and charge capacities of 1252 and 819 mAh g-1, respectively, with an initial columbic efficiency of 65% at a current density of 50 mAh g-1 in the potential range from 0.01 to 3 V versus Li/L+.

Original languageEnglish
Title of host publicationHigh Capacity Anode Materials for Lithium Ion Batteries
PublisherMaterials Research Society
Pages7-12
Number of pages6
Volume1775
ISBN (Electronic)9781510826304
DOIs
Publication statusPublished - 2015
Externally publishedYes
Event2015 MRS Spring Meeting - San Francisco, United States
Duration: Apr 6 2015Apr 10 2015

Other

Other2015 MRS Spring Meeting
CountryUnited States
CitySan Francisco
Period4/6/154/10/15

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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