Gallium oxide nanorods as novel, safe and durable anode material for Li- and Na-ion batteries

Meligrana, Giuseppina; Lueangchaichaweng, Warunee; Colo', Francesca; Destro, Matteo; Fiorilli, Sonia Lucia; Pescarmona, Paolo P.; Gerbaldi, Claudio

doi:10.1016/j.electacta.2017.03.047

Gallium oxide nanorods prepared by template-free synthesis are reported for the first time as safe and durable anode material for lithium- and sodium-ion batteries. The ambient temperature electrochemical response of the nanorods, tested by cyclic voltammetry and constant-current reversible cycling, is highly satisfying in terms of remarkable stability and capacity retention upon long-term operation (400 cycles), even at high current densities. The newly proposed application of gallium oxide nanorods as electrode material is notable also because this material can preserve the electrical pathway without the need of any “buffer matrix” to compensate for the expansion upon lithium or sodium reversible storage. The highly promising electrochemical performance is attributed to the high aspect ratio and high surface area that stem from the nanorod morphology and which can lead to short diffusion path and fast kinetics of both cations (Li+ or Na+) and electrons.

Gallium oxide nanorods as novel, safe and durable anode material for Li- and Na-ion batteries / Meligrana, Giuseppina; Lueangchaichaweng, Warunee; Colo', Francesca; Destro, Matteo; Fiorilli, SONIA LUCIA; Pescarmona, Paolo P.; Gerbaldi, Claudio. - In: ELECTROCHIMICA ACTA. - ISSN 0013-4686. - STAMPA. - 235(2017), pp. 143-149.

Titolo:	Gallium oxide nanorods as novel, safe and durable anode material for Li- and Na-ion batteries
Autori:	MELIGRANA, Giuseppina Lueangchaichaweng, Warunee COLO', FRANCESCA DESTRO, MATTEO FIORILLI, SONIA LUCIA Pescarmona, Paolo P. GERBALDI, CLAUDIO mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2017
Rivista:	ELECTROCHIMICA ACTA
Digital Object Identifier (DOI):	http://dx.doi.org/10.1016/j.electacta.2017.03.047
Appare nelle tipologie:	1.1 Articolo in rivista

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