Fe x Sn y O z Composites as Anode Materials for Lithium-Ion Storage

Tuan Loi Nguyen; Duckshin Park; Il Tae Kim

doi:10.1166/jnn.2019.17088

Fe _x Sn _y O _z Composites as Anode Materials for Lithium-Ion Storage

J Nanosci Nanotechnol. 2019 Oct 1;19(10):6636-6640. doi: 10.1166/jnn.2019.17088.

Authors

Tuan Loi Nguyen¹, Duckshin Park², Il Tae Kim³

Affiliations

¹ Future Materials and Devices Laboratory, Institute of Fundamental and Applied Sciences, Duy Tan University, 03 Quang Trung, Da Nang 550000, Vietnam.
² Korea Railroad Research Institute (KRRI), 176 Cheoldobakmulkwan-ro, Uiwang-si, Gyeonggi-do, 16105, Republic of Korea.
³ Department of Chemical and Biological Engineering, Gachon University, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea.

PMID: 31027003
DOI: 10.1166/jnn.2019.17088

Abstract

A novel composite, Fe_xSn_yO_z, consisting of tin oxide and iron oxide was developed via a galvanic replacement reaction. The morphology, crystalline structure, and composition of the Fe_xSn_yO_z composite were investigated by employing X-ray diffraction, energy dispersive X-ray spectroscopy, and transmission electron microscopy. When evaluated as an anode material using different binders, namely, polyvinylidene fluoride (PVDF) and poly(acrylic acid) (PAA), the composite blended with the PAA binder displayed a high coulombic efficiency and excellent cycling stability compared to the composite mixed with the PVDF binder. The excellent electrochemical performance could be attributed to the different interactions between the current collector and the binders, as well as the volume accommodation during cycling. Therefore, the results indicated that the application of an appropriate binder could lead to a significant improvement in the electrochemical performance of Fe_xSn_yO_z composite anodes for lithium-ion batteries.