High performance SiOC composites as the anode material for lithium-ion batteries synthesized by ball milling

Jing Wang, Hui Shao, Feng Wu, Shi Chen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

To overcome the problem of volume change of SiO anode material, SiO/C composites are synthesized with different proportion of SiO and citric acid by ball milling and pyrolysis. The electrochemical performance and microstructure of the composites are investigated by XRD, SEM and Land. The composite anode material shows a discharge capacity of 1768 mAh/g in the first cycle with the coulombic efficiency of 62%. After 50 cycles, the discharge capacity is about 540 mAh/g. The improved stability of the materials can be attributed to the carbon-coating formed during pyrolysis progress, which effectively buffer the volume expansion of SiO and improve the conductivity of the composites.

Original languageEnglish
Title of host publicationEnergy Development
Pages933-936
Number of pages4
DOIs
Publication statusPublished - 2014
Event3rd International Conference on Energy, Environment and Sustainable Development, EESD 2013 - Shanghai, China
Duration: 12 Nov 201313 Nov 2013

Publication series

NameAdvanced Materials Research
Volume860-863
ISSN (Print)1022-6680

Conference

Conference3rd International Conference on Energy, Environment and Sustainable Development, EESD 2013
Country/TerritoryChina
CityShanghai
Period12/11/1313/11/13

Keywords

  • Anode material
  • Citric acid
  • Li-ion batteries
  • SiO

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