A novel method of preparing LiMPO4-C nano particles with organic P source

被引：13

作者：

Liu, Tao ^{[1
]}

Xia, Qingbo ^{[1
]}

Lu, Wei ^{[1
]}

Xu, Jingjing ^{[1
]}

Wu, Xiaodong ^{[1
]}

机构：

[1] Chinese Acad Sci, Suzhou Inst Nanotechnol & Nanobion, I Lab, Suzhou 215123, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2015年 / 174卷

基金：

中国国家自然科学基金;

关键词：

Li-ion batteries; cathode material; organic phosphate; nanoparticle; carbon coating; LITHIUM-ION BATTERIES; HIGH-PERFORMANCE; COMPOSITE CATHODE; OLIVINE CATHODES; LIMNPO4; ROUTE; GRAPHENE; KINETICS; LICOPO4;

D O I：

10.1016/j.electacta.2015.05.126

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

An organic phosphorus source, a complex of dodecylamine and H3PO4, was used to prepare carbon coated LiMPO4 (M=Mn, Fe or Co) particles with a solid phase reaction. The obtained LiMnxFe1-xPO4-C particles were only about 50 nm, resulting from the restriction of the in-situ carbon coating layer formed by the decomposition of dodecylamine-H3PO4 complex. When used as the cathode materials of Li-ion batteries, LiMn0.7Fe0.3PO4 particles displayed a high discharge capacity of 158 mAh/g and good rate performance. Using these kinds of organic phosphorus salt, no other carbon source was required to be added in preparing carbon coated UMPO4 (M=Mn, Fe or Co) particles. This method was extended to other kind of organic amine including ethylenediamine, diaminopropane, butylamine and tetradecylamine. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：120 / 126

页数：7

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