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

被引：22

作者：

Hwang, Chahwan ^{[1
]}

Kim, Taejin ^{[2
]}

Noh, Yohan ^{[1
]}

Cha, Wansik ^{[3
]}

Shim, Joongpyo ^{[4
]}

Kwak, Kyungwon ^{[1
]}

Ok, Kang Mm ^{[1
]}

Lee, Kyung-Koo ^{[2
]}

机构：

[1] Chung Ang Univ, Dept Chem, Seoul 156756, South Korea

[2] Kunsan Natl Univ, Dept Chem, Gunsan 573701, Jeonbuk, South Korea

[3] Korea Atom Energy Res Inst, Nucl Chem Res Div, Taejon 305353, South Korea

[4] Kunsan Natl Univ, Dept Nano & Chem Engn, Gunsan 573701, Jeonbuk, South Korea

来源：

MATERIALS LETTERS | 2016年 / 164卷

基金：

新加坡国家研究基金会;

关键词：

Cathode active material; Lithium manganese silicate; Sonochemical reaction; Vanadium doping; Diffusion coefficient; SOL-GEL METHOD; HIGH-CAPACITY; NANOPARTICLES; SUBSTITUTION; LI2FESIO4; CATHODES; CR;

D O I：

10.1016/j.matlet.2015.10.113

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 x 10(-14) cm(2) s(-1) and 1.19 x 10(-13) cm(2) s(-1), respectively. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：270 / 273

页数：4

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