Synthesis, characterization, and electrochemical performance of V-doped Li2MnSiO4/C composites for Li-ion battery

Chahwan Hwang, Taejin Kim, Yohan Noh, Wansik Cha, Joongpyo Shim, Kyungwon Kwak, Kang Min Ok, Kyung Koo Lee

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

High-capacity Li2MnSiO4/C (LMS/C) nanoparticles doped with V3+ were prepared using sonochemistry under multibubble sonoluminescence (MBS) conditions, and the physical and electrochemical properties of the nanoparticles were characterized. The results showed that substituting Mn2+ with V3+ was effective in reducing the grain size, purifying the crystalline phase, and enhancing the electrochemical properties. In particular, 5 and 10 mol% V3+-doped LMS/C exhibited diffusion coefficients of 5.58×10-14 cm2 s-1 and 1.19×10-13 cm2 s-1, respectively.

Original languageEnglish
Pages (from-to)270-273
Number of pages4
JournalMaterials Letters
Volume164
DOIs
Publication statusPublished - 2016 Feb 1
Externally publishedYes

Keywords

  • Cathode active material
  • Diffusion coefficient
  • Lithium manganese silicate
  • Sonochemical reaction
  • Vanadium doping

ASJC Scopus subject areas

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

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