title: High Voltage Li-Ion Battery Using Exfoliated Graphite/Graphene Nanosheets Anode.
abstract: The achievement of a new generation of lithium-ion battery, suitable for a continuously growing consumer electronic and sustainable electric vehicle markets, requires the development of new, low-cost, and highly performing materials. Herein, we propose a new and efficient lithium-ion battery obtained by coupling exfoliated graphite/graphene nanosheets (EGNs) anode and high-voltage, spinel-structure cathode. The anode shows a capacity exceeding by 40% that ascribed to commercial graphite in lithium half-cell, at very high C-rate, due to its particular structure and morphology as demonstrated by X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The Li-ion battery reveals excellent efficiency and cycle life, extending up to 150 cycles, as well as an estimated practical energy density of about 260 Wh kg(-1), that is, a value well exceeding the one associated with the present-state Li-ion battery.
authors.affiliation: Department of Chemistry, Sapienza University of Rome , Piazzale Aldo Moro 5, 00185, Rome, Italy.
authors.forename: Marco
authors.initials: M
authors.lastname: Agostini
authors.affiliation: Dipartimento di Scienze, Università della Basilicata , 85100, Potenza, Italy.
authors.forename: Sergio
authors.initials: S
authors.lastname: Brutti
authors.affiliation: Department of Chemical and Pharmaceutical Sciences, University of Ferrara , Via Fossato di Mortara 17, 44121, Ferrara, Italy.
authors.forename: Jusef
authors.initials: J
authors.lastname: Hassoun
keywords: anode; graphene; graphite; high-voltage; lithium-ion battery