期刊
SOLID STATE IONICS
卷 262, 期 -, 页码 98-101出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ssi.2013.11.007
关键词
Li-ion batteries; Carbon coating; Chemical stability; Dilithium manganese orthosilicate; Electrolyte
C/Li2MnSiO4 nanocomposite material was obtained by sal-gel method followed by carbon coating process. Then, in electrochemical process C/Li2MnSiO4 composites in different states of charge (pristine, charged, discharged) were prepared. Chemical changes occurring during electrochemical process were examined by XPS measurements. Carbon material rearrangement and formation of more stable ordered graphene domains in the carbon coating were observed and probably induced by the reaction with electrolyte during SRI formation. DSC experiments confirmed that the carbon coating may react with the electrolyte resulting in weak exothermic effect, which diminishes upon electrochemical process. So, sufficient stability towards LiPF6 based electrolyte under electrochemical conditions and slightly elevated temperatures of Li2MnSiO4 material as well as C/Li2MnSiO4 nanocomposite was confirmed. (C) 2013 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据