A Lithium‐Ion Battery using a 3 D‐Array Nanostructured Graphene–Sulfur Cathode and a Silicon Oxide‐Based Anode. Issue 9 (18th April 2018)

• Record Type: Journal Article
• Authors: Benítez, Almudena; Di Lecce, Daniele; Elia, Giuseppe Antonio; Caballero, Álvaro; Morales, Julián; Hassoun, Jusef
• Is Part Of: ChemSusChem. Volume 11:Issue 9(2018)
• Page Start: 1512
• Page End: 1520
• Publication Date: 2018-04-18
• Subjects: graphene -- lithium-ion batteries -- microwave chemistry -- silicon -- sulfur; Green chemistry -- Periodicals; Sustainable engineering -- Periodicals; Chemistry -- Periodicals; Chemical engineering -- Periodicals; 660
• DOI: 10.1002/cssc.201800242
• Languages: English
• ISSNs: 1864-5631

Abstract

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 −1 at currents of C/10 and 1 C, respectively. Remarkably, the Li‐alloyed anode, namely, Li y SiO x –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 Li y SiO x –C/3DG‐S battery was found to exhibit very promising properties with a capacity of approximately 460 mAh gS −1 delivered 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. Abstract : S‐atisfaction ! An efficient lithium‐ion battery is assembled by using an enhanced sulfur‐based cathode and a silicon oxide‐based anode as an innovative energy‐storage system. The battery has a capacity of approximately 460 mAh gS −1 delivered at an average voltage of about 1.5 V over 200 cycles, suggesting that the materials would be suitable candidates for low‐costing and high‐energy‐storage applications.