Mono-dispersed LiFePO4@C core-shell [001] nanorods for a high power Li-ion battery cathode

被引:30
作者
Bao, Liang [1 ,2 ,3 ]
Xu, Gang [1 ,2 ]
Sun, Xiaolei [1 ,2 ]
Zeng, Hong [3 ]
Zhao, Ruoyu [1 ,2 ]
Yang, Xin [1 ,2 ]
Shen, Ge [1 ,2 ]
Han, Gaorong [1 ,2 ]
Zhou, Shaoxiong [3 ]
机构
[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China
[2] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China
[3] China Iron & Steel Res Inst Grp, Adv Technol & Mat Co Ltd, Beijing Key Lab Energy Nanomat, Beijing 100081, Peoples R China
基金
中国国家自然科学基金;
关键词
LiFePO4; Core-shell; Li-ion battery; RECHARGEABLE LITHIUM BATTERIES; ELECTROCHEMICAL PROPERTIES; HYDROTHERMAL SYNTHESIS; PHOSPHO-OLIVINES; NANOSHEETS; ELECTRODE; FACETS; CARBON; NANOSTRUCTURES; PERFORMANCE;
D O I
10.1016/j.jallcom.2017.03.052
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Monodispersed LiFePO4 [001] nanorods have been successfully synthesized via a conventional hydrothermal route with Li2SO4, FeSO4 and KH2PO4 as precursors. Subsequently, in virtue of the good monodispersibility LiFePO4@C core-shell [001] nanorods are facilely prepared by employing a carbon coating process on the obtained monodispersed LiFePO4 [001] nanorods. On the basis of the experimental results, a possible formation mechanism of the monodispersed LiFePO4 [001] nanorods has been proposed. Due to the full carbon coating, size reducing in [010] and the perfect olivine crystal lattice, the LiFePO4@C core-shell [001] nanorods exhibit excellent rate capacity and stable cycle performance. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:685 / 693
页数:9
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