Controlled shape with enhanced electrochemical performance of various ions doped Li2MnSiO4 cathode nanoparticles

被引：21

作者：

Choi, Sungho ^{[1
]}

Kim, Sue Jin ^{[1
]}

Yun, Young Jun ^{[1
]}

Lee, Sun Sook ^{[1
]}

Choi, Si-Young ^{[2
]}

Jung, Ha-Kyun ^{[1
]}

机构：

[1] Korea Res Inst Chem Technol, Adv Battery Mat Res Grp, Taejon 305606, South Korea

[2] Korea Inst Mat Sci, Adv Characterizat & Anal Grp, Chang Won, South Korea

来源：

MATERIALS LETTERS | 2013年 / 105卷

关键词：

Lithium ion battery; Cathode; Lithium orthosilicate; HIGH-CAPACITY;

D O I：

10.1016/j.matlet.2013.04.045

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Li2MnSiO4 cathode materials doped with various cationic ions, Ga3+, Al3+, and Mg2+, are synthesized and their microstructure and electrochemical properties are investigated. The samples doped with trivalent ions, especially Ga3+, lead to a higher charge/discharge capacity and initial efficiency with well-dispersed nanoparticle formation. We can realize that the enhanced electrochemical performance of the specific ion doped Li2MnSiO4 cathodes originated from the uniformly distributed nanoparticles rather than the additional lithium insertion/extraction of the given cathode materials induced by the charge compensation. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：113 / 116

页数：4

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