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Synthesis, characterization, and electrochemical performance of V-doped Li2MnSiO4/C composites for Li-ion battery
- Authors
- Hwang, Chahwan; Kim, Taejin; Noh, Yohan; Cha, Wansik; Shim, Joongpyo; Kwak, Kyungwon; Ok, Kang Mm; Lee, Kyung-Koo
- Issue Date
- Feb-2016
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Cathode active material; Lithium manganese silicate; Sonochemical reaction; Vanadium doping; Diffusion coefficient
- Citation
- MATERIALS LETTERS, v.164, pp 270 - 273
- Pages
- 4
- Journal Title
- MATERIALS LETTERS
- Volume
- 164
- Start Page
- 270
- End Page
- 273
- ISSN
- 0167-577X
1873-4979
- 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 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.
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