論文

査読有り
2017年

Synthesis and Properties of Li3VO4 Carbon Composite as Negative Electrode for Lithium-Ion Battery

PROCEEDING OF THE 3RD INTERNATIONAL CONFERENCE OF GLOBAL NETWORK FOR INNOVATIVE TECHNOLOGY 2016 (3RD IGNITE-2016): ADVANCED MATERIALS FOR INNOVATIVE TECHNOLOGIES
  • Kengo Narumi
  • ,
  • Tomoya Mori
  • ,
  • Rei Kumasaka
  • ,
  • Tomohiro Tojo
  • ,
  • Ryoji Inada
  • ,
  • Yoji Sakurai

1865
開始ページ
060004(1)
終了ページ
060004(5)
記述言語
英語
掲載種別
研究論文(国際会議プロシーディングス)
DOI
10.1063/1.4993380
出版者・発行元
AMER INST PHYSICS

Lithium vanadate Li3VO4 (LVO) is known to be as one of the attractive candidates for negative electrode of lithium-ion battery (LIB) with high safety. Although theoretical capacity of LVO attains to 400 mAh g(-1), the actual charge and discharge capacities are far below due to its low electrical and ionic conductivity. In this study, we synthesized carbon-coated LVO (C-LVO) via one-step solid state reaction method and examined its properties as a negative electrode for LIB. From XRD measurements and SEM observation, crystal structure of C-LVO was nearly identical with non-coated one but grain size of former was much smaller than latter with same annealing temperature, suggesting that introduction of carbon source in starting materials effectively helps to suppress LVO grain growth during annealing. TEM observation of C-LVO also shows that amorphous carbon layer with its thickness of several ten nm was formed on the surface of LVO grain. In electrochemical testing, C-LVO shows much higher charge and discharge capacities than non-coated LVO.

リンク情報
DOI
https://doi.org/10.1063/1.4993380
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000412828400061&DestApp=WOS_CPL
URL
http://aip.scitation.org/doi/abs/10.1063/1.4993380
ID情報
  • DOI : 10.1063/1.4993380
  • ISSN : 0094-243X
  • Web of Science ID : WOS:000412828400061

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