Nonaqueous synthesis of nano-sized LiMnPO4@C as a cathode material for high performance lithium ion batteries

被引：34
作者：
Fan, Jingmin [1 ]
Yu, Yang [1 ]
Wang, Yang [1 ]
Wu, Qi-Hui [2 ]
Zheng, Mingsen [1 ]
Dong, Quanfeng [1 ]
机构：
[1] Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen, Peoples R China
[2] Quanzhou Normal Univ, Dept Chem, Coll Chem & Life Sci, Quanzhou 362000, Fujian, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2016年 / 194卷
关键词：
LiMnPO4; Core@shell structure; Lithium-ion batteries; LIMPO4; M; CARBON; MORPHOLOGY; LIFEPO4; FE; NANOPARTICLES; CONDUCTIVITY; ACID;
D O I：
10.1016/j.electacta.2016.02.090
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A nano-sized LiMnPO4@C core@shell structure was prepared through a facile two-step method. Oleylamine was introduced in the synthesis process using as both solvent and carbon source. The LiMnPO4@C structure has a particle size smaller than 40 nm with uniform 2-3 nm carbon coating layers, which interweave to form a secondary micrometer-sized mesoporous structure. The as-prepared LiMnPO4@C showed a high capacity of 168 mAh g(-1) at 0.1 C and 105 mAh g(-1) at 5 C applied as a cathode electrode for lithium ion batteries. The thin layer carbon coating not only increases LiMnPO4 in electronic and ionic conductivity, but also enhances its cycling ability by stabilizing the solid electrolyte interface. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：52 / 58
页数：7
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