TY  - JOUR
N2  - Herein we investigate a lithium sulfur battery suitably combining alternative cathode design and relatively safe, highly conductive electrolyte. The composite cathode is formed by infiltrating sulfur in a N-doped 3D graphene framework prepared by a microwave assisted solvothermal approach, while the electrolyte is obtained by dissolving lithium bis(trifluoromethane)sulfonimide (LiTFSI) in diethylene glycol dimethyl ether (DEGDME), and upgraded by addition of lithium nitrate (LiNO?) as a film forming agent. The particular structure of the composite cathode, studied in this work by employing various techniques, well enhances the lithium-sulfur electrochemical process leading to very stable cycling trend and specific capacity ranging from 1000?mAh g?¹ at the highest rate to 1400?mAh g?¹ at the lowest one. The low resistance of the electrode/electrolyte interphase, driven by an enhanced electrode design and a suitable electrolyte, is considered one of the main reasons for the high performance which may be of interest for achieving a promising lithium-sulfur battery. Furthermore, the study reveals a key bonus of the cell represented by the low flammability of the diglyme electrolyte, while comparable conductivity and interface resistance, with respect to the most conventional solution used for the lithium sulfur cell.
ID  - discovery10062411
PB  - ELSEVIER SCIENCE BV
KW  - 3D-graphene
KW  -  Li-S battery
KW  -  Solvothermal microwave
KW  -  Nitrogen doping
KW  -  Low flammablitiy
TI  - Lithium sulfur battery exploiting material design and electrolyte chemistry: 3D graphene framework and diglyme solution
AV  - public
Y1  - 2018/09/01/
EP  - 112
UR  - https://doi.org/10.1016/j.jpowsour.2018.07.002
SN  - 0378-7753
JF  - Journal of Power Sources
A1  - Benítez, A
A1  - Di Lecce, D
A1  - Caballero, A
A1  - Morales, J
A1  - Rodríguez-Castellón, E
A1  - Hassoun, J
SP  - 102
VL  - 397
N1  - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions.
ER  -