ChemInform Abstract: Study of the Lithium Intercalation/Deintercalation Processes into V2O5 by Linear Voltammetry at Slow Sweep Rates.

Abstract

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Electrochemical properties of amorphous Li x V2O5−y thin film deposited by r.f.-sputtering

“…It was reported that the potential plateau was thought to result from the coexistence of two phases, and was observed at 3.4, 3.2 and 2.4 V for crystalline Li x V 2 O 5 [2]. The abrupt potential reduction was associated with the completion of phase transformation from d phase to c phase, which led to a capacity loss at the cathode due to an irreversible structural transformation [13]. The absence of a potential plateau and an abrupt potential reduction in the charge/discharge curve of the amorphous Li x V 2 O 5-y thin film suggests that the thin film maintained a single phase in the whole composition range (x = 0-2.0) without phase transformation during charge/ discharge.…”