eprintid: 10062411
rev_number: 23
eprint_status: archive
userid: 608
dir: disk0/10/06/24/11
datestamp: 2018-11-27 16:00:18
lastmod: 2021-09-27 22:32:33
status_changed: 2018-11-30 11:40:23
type: article
metadata_visibility: show
creators_name: Benítez, A
creators_name: Di Lecce, D
creators_name: Caballero, A
creators_name: Morales, J
creators_name: Rodríguez-Castellón, E
creators_name: Hassoun, J
title: Lithium sulfur battery exploiting material design and electrolyte chemistry: 3D graphene framework and diglyme solution
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F43
keywords: 3D-graphene, Li-S battery, Solvothermal microwave, Nitrogen doping, Low flammablitiy
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: 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 (LiNO₃) 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.
date: 2018-09-01
date_type: published
publisher: ELSEVIER SCIENCE BV
official_url: https://doi.org/10.1016/j.jpowsour.2018.07.002
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
article_type_text: Journal Article
verified: verified_manual
elements_id: 1589040
doi: 10.1016/j.jpowsour.2018.07.002
language_elements: English
lyricists_name: Di Lecce, Daniele
lyricists_id: DDILE26
actors_name: Di Lecce, Daniele
actors_id: DDILE26
actors_role: owner
full_text_status: public
publication: Journal of Power Sources
volume: 397
pagerange: 102-112
pages: 11
issn: 0378-7753
citation:        Benítez, A;    Di Lecce, D;    Caballero, A;    Morales, J;    Rodríguez-Castellón, E;    Hassoun, J;      (2018)    Lithium sulfur battery exploiting material design and electrolyte chemistry: 3D graphene framework and diglyme solution.                   Journal of Power Sources , 397    pp. 102-112.    10.1016/j.jpowsour.2018.07.002 <https://doi.org/10.1016/j.jpowsour.2018.07.002>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10062411/1/Di%20Lecce_Lithium%20sulfur%20battery%20exploiting%20material%20design%20and%20electrolyte%20chemistry.%203D%20graphene%20framework%20and%20diglyme%20solution_AAM.pdf