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

doi:10.1016/j.matlet.2015.10.113

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 journal › Article › peer-review

23 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 language	English
Pages (from-to)	270-273
Number of pages	4
Journal	Materials Letters
Volume	164
DOIs	https://doi.org/10.1016/j.matlet.2015.10.113
Publication status	Published - 2016 Feb 1
Externally published	Yes

Bibliographical note

Funding Information:
This research was supported by the Chung-Ang University Excellent Student Scholarship and the Nuclear Research and Development Program of the National Research Foundation of Korea (Grant no. 2012M2A8A5025924 )

Keywords

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

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matlet.2015.10.113

Cite this

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

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.",

keywords = "Cathode active material, Diffusion coefficient, Lithium manganese silicate, Sonochemical reaction, Vanadium doping",

author = "Chahwan Hwang and Taejin Kim and Yohan Noh and Wansik Cha and Joongpyo Shim and Kyungwon Kwak and Ok, {Kang Min} and Lee, {Kyung Koo}",

note = "Funding Information: This research was supported by the Chung-Ang University Excellent Student Scholarship and the Nuclear Research and Development Program of the National Research Foundation of Korea (Grant no. 2012M2A8A5025924 ) ",

year = "2016",

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doi = "10.1016/j.matlet.2015.10.113",

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T1 - Synthesis, characterization, and electrochemical performance of V-doped Li2MnSiO4/C composites for Li-ion battery

AU - Hwang, Chahwan

AU - Kim, Taejin

AU - Noh, Yohan

AU - Cha, Wansik

AU - Shim, Joongpyo

AU - Kwak, Kyungwon

AU - Ok, Kang Min

AU - Lee, Kyung Koo

N1 - Funding Information: This research was supported by the Chung-Ang University Excellent Student Scholarship and the Nuclear Research and Development Program of the National Research Foundation of Korea (Grant no. 2012M2A8A5025924 )

PY - 2016/2/1

Y1 - 2016/2/1

N2 - 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.

AB - 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.

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KW - Diffusion coefficient

KW - Lithium manganese silicate

KW - Sonochemical reaction

KW - Vanadium doping

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