CONTACT

Lorenzo Carbone PhD Student

Sapienza University, Rome

Chemistry Department

Piazzale Aldo Moro n°5 00185 Rome Italy

Phone : +39 49913664

e-mail : lorenzo.carbone@uniroma1.it

Carbone Lorenzo  New Generation of Energy Storage Devices
SUPERVISOR

Professor Jusef Hassoun

Ferrara University, Ferrara

Chemistry Department

Via Fossato di mortara 17, Ferrara, Italy

Phone : +39 0532455163

e-mail : Jusef.Hassoun@unife.it

Mail: lorenzo.carbone@uniroma1.it Mail: jusef.hassoun@unife.it Home
Home Research Articles Conference Collaborations About Me
CARBON COMPOSITES FOR A HIGH-ENERGY LITHIUM–SULFUR
BATTEY WITH A GLYME-BASED ELECTROLYTE

Lorenzo Carbone,[a] Jing Peng,[b, c] Marco Agostini,[d] Mallory Gobet,[b] Matthew Devany,[e] Bruno Scrosati,[f, g] Steve Greenbaum,*[b] and Jusef Hassoun*[h]

 [a] L. Carbone Sapienza University of Rome, Chemistry Department Piazzale Aldo Moro, 5, 00185, Rome (Italy)

[b] J. Peng, Dr. M. Gobet, Prof. S. Greenbaum Department of Physics & Astronomy Hunter College of the City University of New York 695 Park Ave, New York, NY 10065 (USA)

[c] J. Peng City University of New York 695 Park Ave, New York, NY 10016 (USA)

[d] Dr. M. Agostini Division of Condensed Matter Physics, Department of Physics Chalmers University of Technology, SE-421 96 Gçteborg (Sweden)

[e] Dr. M. Devany Department of Chemistry and Biochemistry Hunter College of the City University of New York 695 Park Ave, New York, NY10065 (USA)

[f] Prof. B. Scrosati Electrochimica ed Energia Rome (Italy)

[g] Prof. B. Scrosati Current address: Helmholtz Institute Helmholtzstraße 11, 89081 Ulm (Germany)

[h] Prof. J. Hassoun Department of Chemical and Pharmaceutical Sciences Ferrara University Via Fossato di Mortara, 44121, Ferrara (Italy)

Abstract: A comparative study of sulfur composites using carbon of various natures, namely, graphite, mesocarbon microbeads, and multi-walled carbon nanotubes, is performed in lithium battery design and evaluation. Morphological and structural analyses, by means of SEM and XRD, cyclic voltammetry and galvanostatic cycling in lithium cells are employed for characterization of the materials. Tetraethylene glycol dimethyl ether containing lithium trifluoromethansulfonate is considered the preferred electrolyte for performing the electrochemical tests. Prior to use in cells, the electrolyte characteristics in terms of 1H, 7Li, and 19F nuclei self-diffusion coefficients, ionic conductivity, and ionic association degree are studied by combining NMR and impedance spectroscopy. The best lithium–sulfur composite reported herein achieves a capacity higher than 500 mAhg1 over 140 cycles with no sign of dendrite formation or failure. This performance is considered sufficiently suitable for the development of high-energy lithium batteries, in particular, considering

the expected safety of the cells by employing a nonflammable glyme electrolyte instead of a conventional carbonate- based one.

A low-cost, High-Energy Polymer lithium sulfur cell


Wiley


ChemElectroChem


View at Publisher

DOI: 10.1002/celc.201600586