A facile solution combustion synthesis of nanosized amorphous iron oxide incorporated in a carbon matrix for use as a high-performance lithium ion battery anode material

JOURNAL OF ALLOYS AND COMPOUNDS

卷:633

Article

Zhu, Chunyu¹  Saito, Genki¹  Akiyama, Tomohiro¹ 

[1] Hokkaido Univ, Ctr Adv Res Energy & Mat, Sapporo, Hokkaido 0608628, Japan

关键词: Iron oxides;    Lithium ion battery;    Anode material;    Nanoparticle;    Composite;   

DOI  :  10.1016/j.jallcom.2015.02.043

来源: Elsevier

【 摘 要 】

An amorphous iron oxide-carbon composite has been fabricated through an effective, inexpensive, and scalable method employing solution combustion synthesis. Amorphous iron oxide nanoparticles with diameters of about 5 nm were synthesized and uniformly embedded in a dense carbon matrix. The synthesized composite exhibits enhanced cyclability and rate capability, showing a high reversible capacity of 687 mA h g(1) after 200 discharge/charge cycles at a current rate of 0.5 A g (1), compared to the 400 mA h g (1) observed for Fe2O3 nanoparticles. This enhanced performance was retained despite more demanding conditions, delivering a high capacity of about 525 mA h g (1) and a nearly perfect coulombic efficiency even after 400 cycles at 1 A g (1). The easy production and superior electrochemical properties of this composite suggest that it is a promising material for use as an anode material in high performance lithium ion batteries. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

Free