High capacity nanocomposite Fe3O4/Fe anodes for Li-ion batteries

被引：41

作者：

Luebke, Mechthild ^{[1
]}

Makwana, Neel M. ^{[1
]}

Gruar, Robert ^{[1
]}

Tighe, Chris ^{[4
]}

Brett, Dan ^{[2
]}

Shearing, Paul ^{[2
]}

Liu, Zhaolin ^{[3
]}

Darr, Jawwad A. ^{[1
]}

机构：

[1] UCL, Dept Chem, London WC1H 0AJ, England

[2] UCL, Dept Chem Engn, London WC1E 7JE, England

[3] ASTAR, Inst Mat Res & Engn, Singapore 117602, Singapore

[4] Univ London Imperial Coll Sci Technol & Med, Fac Engn, Dept Chem Engn, South Kensington SW7 2AZ, England

来源：

JOURNAL OF POWER SOURCES | 2015年 / 291卷

基金：

英国工程与自然科学研究理事会;

关键词：

Iron oxide; Iron metal; Continuous hydrothermal flow synthesis; Lithium-ion battery; Anode; ELECTROCHEMICAL PERFORMANCE; HYDROTHERMAL SYNTHESIS; SUPERCRITICAL WATER; NANOPARTICLES; MICROSPHERES; MANUFACTURE;

D O I：

10.1016/j.jpowsour.2015.04.100

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：

High capacity, stable Fe3O4/Fe nanocomposites for Li-ion battery anodes were manufactured via heattreating Fe3O4-C (amorphous) nanoparticles that were made via a continuous hydrothermal flow synthesis (CHFS) reactor. Compared to analogous Fe3O4 nanoparticles, the Fe3O4/Fe nanocomposite anodes (vs. Li/Li+), displayed a high specific capacity of ca. 390 mAh g(-1), after 50 cycles, at a modest current rate of 200 mA g(-1) (at the highest Fe metal content). The performance of the Fe3O4/Fe materials at higher current rates was also excellent (ca. 260 mAh g(-1), at the highest current rate of 2000 mA g(-1)), which confirms that the presence of Fe metallic particles can significantly improve cycling stability of Li-ion battery anodes by retaining structural metal oxide integrity. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：102 / 107

页数：6

共 24 条

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