Effects of the nanostructured SiO2 coating on the performance of LiNi0.5Mn1.5O4 cathode materials for high-voltage Li-ion batteries
文献类型：期刊论文
| 作者 | Y. K. Fan ; J. M. Wang ; Z. Tang ; W. C. He ; J. Q. Zhang |
| 刊名 | Electrochimica Acta
 |
| 出版日期 | 2007 |
| 卷号 | 52期号:11页码:3870-3875 |
| 关键词 | LiNi0.5Mn1.5O4 spinel surface modification fumed silica LiF XPS licrymn2-yo4 0-less-than-or-equal-to-y-less-than-or-equal-to-1 composite electrolytes interfacial stability elevated-temperatures lithium batteries surface-films fumed silica xps analysis spinel cells |
| ISSN号 | 0013-4686 |
| 中文摘要 | LiNi0.5Mn1.5O4 spinels coated with various amounts of fumed silica have been synthesized and investigated as cathode materials for high-voltage lithium-ion batteries at the elevated temperature (55 degrees C). The morphology and structure of the coated LiNi0.5Mn1.5O4 samples were characterized by XRD, TEM and EDX. It was found that the surfaces of the coated LiNi0.5Mn1.5O4 samples are covered with a porous, amorphous, nanostructured SiO2 layer. The results of electrochemical experiments showed that the SiO2-coated LiNi0.5Mn1.5O4 samples display obviously improved capacity retention rate, and the improvement effect enhances with the increase of SiO2 content. The XPS results revealed that the surfaces of the SiO2-coated LiNi0.5W1.5O4 cathode materials have relatively low content of LiF, and this is mainly responsible for their improved electrochemical cycling stability. (c) 2007 Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33518]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Y. K. Fan,J. M. Wang,Z. Tang,et al. Effects of the nanostructured SiO2 coating on the performance of LiNi0.5Mn1.5O4 cathode materials for high-voltage Li-ion batteries[J]. Electrochimica Acta,2007,52(11):3870-3875. |
| APA | Y. K. Fan,J. M. Wang,Z. Tang,W. C. He,&J. Q. Zhang.(2007).Effects of the nanostructured SiO2 coating on the performance of LiNi0.5Mn1.5O4 cathode materials for high-voltage Li-ion batteries.Electrochimica Acta,52(11),3870-3875. |
| MLA | Y. K. Fan,et al."Effects of the nanostructured SiO2 coating on the performance of LiNi0.5Mn1.5O4 cathode materials for high-voltage Li-ion batteries".Electrochimica Acta 52.11(2007):3870-3875. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。