Journal
JOURNAL OF POWER SOURCES
Volume 232, Issue -, Pages 264-269Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2013.01.038
Keywords
Lithium-ion battery; Anode material; SiO anode; Irreversible capacity; Fe2O3
Ask authors/readers for more resources
Silicon monoxide (SiO) has a high-expected capacity and long cycle performance, but the first cycle's charge discharge efficiency was lower than that of a conventional anode material. Recently, we have reported that the irreversible capacity was able to be suppressed based on the crystallinity of SiO. In order to decrease the oxygen defect and improve the crystallinity of SiO, Fe2O3 was reacted with SiO as an oxygen source then heat-treated at 800 degrees C. When the sample of the mixed SiO and Fe2O3 at a molar ratio of 1:0.2 was heated, Fe2SiO4 (fayalite) with the Pbnm olivine structure was uniformly formed on the SiO surface. It was confirmed that the efficiency of the first cycle's charge discharge capacity improved in comparison to the conventional SiO. (C) 2013 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available