An efficient lithium-ion battery was assembled by using an enhanced sulfur-based cathode and a silicon oxide-based anode and proposed as an innovative energy-storage system. The sulfur–carbon composite, which exploits graphene carbon with a 3 D array (3DG-S), was synthesized by a reduction step through a microwave-assisted solvothermal technique and was fully characterized in terms of structure and morphology, thereby revealing suitable features for lithium-cell application. Electrochemical tests of the 3DG-S electrode in a lithium half-cell indicated a capacity ranging from 1200 to 1000 mAh g−1at currents of C/10 and 1 C, respectively. Remarkably, the Li-alloyed anode, namely, LiySiOx–C prepared by the sol–gel method and lithiated by surface treatment, showed suitable performance in a lithium half-cell by using an electrolyte designed for lithium–sulfur batteries. The LiySiOx–C/3DG-S battery was found to exhibit very promising properties with a capacity of approximately 460 mAh gS−1delivered at an average voltage of approximately 1.5 V over 200 cycles, suggesting that the characterized materials would be suitable candidates for low-cost and high-energy-storage applications.

A Lithium-Ion Battery using a 3 D-Array Nanostructured Graphene–Sulfur Cathode and a Silicon Oxide-Based Anode

Di Lecce, Daniele;Hassoun, Jusef
2018

Abstract

An efficient lithium-ion battery was assembled by using an enhanced sulfur-based cathode and a silicon oxide-based anode and proposed as an innovative energy-storage system. The sulfur–carbon composite, which exploits graphene carbon with a 3 D array (3DG-S), was synthesized by a reduction step through a microwave-assisted solvothermal technique and was fully characterized in terms of structure and morphology, thereby revealing suitable features for lithium-cell application. Electrochemical tests of the 3DG-S electrode in a lithium half-cell indicated a capacity ranging from 1200 to 1000 mAh g−1at currents of C/10 and 1 C, respectively. Remarkably, the Li-alloyed anode, namely, LiySiOx–C prepared by the sol–gel method and lithiated by surface treatment, showed suitable performance in a lithium half-cell by using an electrolyte designed for lithium–sulfur batteries. The LiySiOx–C/3DG-S battery was found to exhibit very promising properties with a capacity of approximately 460 mAh gS−1delivered at an average voltage of approximately 1.5 V over 200 cycles, suggesting that the characterized materials would be suitable candidates for low-cost and high-energy-storage applications.
2018
Benítez, Almudena; Di Lecce, Daniele; Elia, Giuseppe Antonio; Caballero, Álvaro; Morales, Julián; Hassoun, Jusef
File in questo prodotto:
File Dimensione Formato  
10.1002@cssc.201800242.pdf

solo gestori archivio

Descrizione: versione editoriale
Tipologia: Full text (versione editoriale)
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 1.89 MB
Formato Adobe PDF
1.89 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Di Lecce_A Lithium-Ion Battery using a 3D-Array Nanostructured Graphene-Sulfur Cathode and a Silicon Oxide-Based Anode_AAM.pdf

accesso aperto

Descrizione: post print
Tipologia: Post-print
Licenza: PUBBLICO - Pubblico con Copyright
Dimensione 1.72 MB
Formato Adobe PDF
1.72 MB Adobe PDF Visualizza/Apri

I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2390876
Citazioni
  • ???jsp.display-item.citation.pmc??? 6
  • Scopus 49
  • ???jsp.display-item.citation.isi??? 47
social impact