Lorenzo Carbone PhD Student

Sapienza University, Rome

Chemistry Department

Piazzale Aldo Moro n°5 00185 Rome Italy

Phone : +39 49913664

e-mail :

Carbone Lorenzo  New Generation of Energy Storage Devices

Professor Jusef Hassoun

Ferrara University, Ferrara

Chemistry Department

Via Fossato di mortara 17, Ferrara, Italy

Phone : +39 0532455163

e-mail :

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Lorenzo Carbone a, Mallory Gobet b, Jing Peng b, c, Matthew Devany d, Bruno Scrosati e, 1,Steve Greenbaum b, **, Jusef Hassoun a, f, *

a Sapienza University of Rome, Chemistry Department, Piazzale Aldo Moro, 5, 00185 Rome, Italy

b Department of Physics & Astronomy, Hunter College of the City University of New York, New York, NY 10065, United States

c Graduate center, City University of New York, New York, NY 10016, United States

d Department of Chemistry and Biochemistry, Hunter College of the City University of New York, New York, NY 10065, United States

e Electtrochimica ed Energia, Rome, Italy

f Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Via Fossato di Mortara, 17, 44121, Ferrara, Italy

a b s t r a c t : We propose in this work a polyethylene glycol dimethyl ether (MW 500) dissolving lithium trifluoromethansulfonate (LiCF3SO3) salt as suitable electrolyte media for a safe and efficient use of the lithium metal anode in battery. Voltammetry and galvanostatic tests reveal significant enhancement of the electrolyte characteristics, in terms of cycling life and chemical stability, by the addition of lithiumnitrate (LiNO3) to the solution. Furthermore, PFG NMR measurements suggest the applicability of the electrolyte in battery in terms of ionic conductivity, lithium transference number, ionic-association degree and self-diffusion coefficient. Accordingly, the electrolyte is employed in a lithium battery using lithium iron phosphate as the selected cathode. The battery delivers a stable capacity of 150mAhg-1 and flatworking voltage of 3.5 V, thus leading to a theoretical energy density referred to the cathode of 520Wh kg-1. This battery is considered a suitable energy storage systemfor advanced applications requiring both high safety and high energy density. © 2015 Elsevier B.V. All rights reserved.

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Journal of Power Sources