Nitrogen-doped carbon coating for a high-performance SiO anode in lithium-ion batteries

Dong Jin Lee, Myung Hyun Ryou, Je Nam Lee, Byung Gon Kim, Yong Min Lee, Hye Won Kim, Byung Seon Kong, Jung Ki Park, Jang Wook Choi

Research output: Contribution to journalArticlepeer-review

94 Scopus citations

Abstract

We report a simple process to coat silicon monoxide (SiO) particles with nitrogen-doped carbon layers (NC-SiO) by using a nitrogen-containing ionic liquid. The nitrogen-doping addresses the moderate electric conductivity of SiO particles as large as 20 μm and thus enables NC-SiO to exhibit substantially improved specific capacity and rate performance as compared to those of bare carbon-coated SiO (C-SiO) and bare SiO counterparts. Due to the simplicity of the coating procedure, the current approach should be readily applicable to other lithium battery electrodes that suffer from low electronic conductivities.

Original languageEnglish
Pages (from-to)98-101
Number of pages4
JournalElectrochemistry Communications
Volume34
DOIs
StatePublished - 2013

Bibliographical note

Funding Information:
This research was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) ( NRF-2009-0094219 and NRF-2012-R1A2A1A01011970 ).

Keywords

  • Anode
  • Carbon coating
  • Lithium ion battery
  • Nitrogen doping
  • Silicon monoxide

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