Reducing hydrated protons co-intercalation to enhance cycling stability of CuV2O5 nanobelts: a new anode material for aqueous lithium ion batteries

Content Provider	Semantic Scholar
Author	Bai, Liangfei Zhu, Jinbao Zhang, Xiaodong
Copyright Year	2012
Abstract	The aqueous-based lithium ion batteries have attracted considerable interest because of their high safety, low cost and environmental friendliness for rechargeable energy storage. Herein, a new anode material, uniform CuV2O5 nanobelts, was prepared through a facile hydrothermal route for the first time. The detailed structures and chemical state of the as-obtained CuV2O5 were investigated and the formation mechanism was proposed. The CuV2O5 nanobelts show high electrical conductivity, which could improve their Li-ion insertion/extraction kinetics. The ex situ XRD, XPS and TG study of the lithiated electrode demonstrated that a considerable amount of hydrated protons were co-intercalated into the layer space of CuV2O5 during the charge process, finally leading to irreversible phase collapse with some amorphization. The CuV2O5 anode exhibited the best cycle performance at pH ∼8.5, indicating that reducing the co-intercalation of hydrated protons would be an effective way to improve the cycling stability of similar layered vanadates.
Starting Page	16957
Ending Page	16963
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1039/C2JM32786D
Volume Number	22
Alternate Webpage(s)	http://www.rsc.org/suppdata/jm/c2/c2jm32786d/c2jm32786d.pdf
Alternate Webpage(s)	https://doi.org/10.1039/C2JM32786D
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article