Facile synthesis of nanocrystalline LiFePO4/graphene composite as cathode material for high power lithium ion batteries

被引：26

作者：

Mo, Runwei ^{[1
]}

Lei, Zhengyu ^{[1
]}

Rooney, David ^{[3
]}

Sun, Kening ^{[1
,2
]}

机构：

[1] Harbin Inst Technol, Dept Chem, Harbin 150001, Peoples R China

[2] Harbin Inst Technol, Acad Fundamental & Interdisciplinary Sci, Harbin 150090, Peoples R China

[3] Queens Univ Belfast, Sch Chem & Chem Engn, Belfast BT9 5AG, Antrim, North Ireland

来源：

ELECTROCHIMICA ACTA | 2014年 / 130卷

关键词：

Graphene; Nanocrystalline; Lithium-Ion Batteries; Cathode; ELECTROCHEMICAL PERFORMANCE; NANOSTRUCTURED MATERIALS; LIFEPO4; NANOPARTICLES; ENERGY-CONVERSION; ROOM-TEMPERATURE; PHOSPHO-OLIVINES; STORAGE DEVICES; GRAPHENE; CARBON; IRON;

D O I：

10.1016/j.electacta.2014.03.025

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We describe a simple strategy, which is based on the idea of space confinement, for the synthesis of carbon coating on LiFePO4 nanoparticles/graphene nanosheets composites in a water-in-oil emulsion system. The prepared composite displayed high performance as a cathode material for lithium-ion battery, such as high reversible lithium storage capacity (158 mA h g(-1) after 100 cycles), high coulombic efficiency (over 97%), excellent cycling stability and high rate capability (as high as 83 mA h g(-1) at 60 C). Very significantly, the preparation method employed can be easily adapted and be extended as a general approach to sophisticated compositions and structures for the preparation of highly dispersed nanosized structure on graphene. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：594 / 599

页数：6

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