High Energy Density Lithium-Sulfur Batteries Based on Carbonaceous Two-Dimensional Additive Cathodes.

Content Provider	Europe PMC
Author	Castillo, Julen Santiago, Alexander Judez, Xabier Coca-Clemente, Jose Antonio Saenz de Buruaga, Amaia Gómez-Urbano, Juan Luis González-Marcos, Jose Antonio Armand, Michel Li, Chunmei Carriazo, Daniel
Copyright Year	2023
Abstract	The increasing demand for electrical energy storage makesit essentialto explore alternative battery chemistries that overcome the energy-densitylimitations of the current state-of-the-art lithium-ion batteries.In this scenario, lithium–sulfur batteries (LSBs) stand outdue to the low cost, high theoretical capacity, and sustainabilityof sulfur. However, this battery technology presents several intrinsiclimitations that need to be addressed in order to definitively achieveits commercialization. Herein, we report the fruitfulness of threedifferent formulations using well-selected functional carbonaceousadditives for sulfur cathode development, an in-house synthesizedgraphene-based porous carbon (ResFArGO), and a mixture of commerciallyavailable conductive carbons (CAs), as a facile and scalable strategyfor the development of high-performing LSBs. The additives clearlyimprove the electrochemical properties of the sulfur electrodes dueto an electronic conductivity enhancement, leading to an outstandingC-rate response with a remarkable capacity of 2 mA h cm–2 at 1C and superb capacities of 4.3, 4.0, and 3.6 mA h cm–2 at C/10 for ResFArGO10, ResFArGO5, and CAs,respectively. Moreover, in the case of ResFArGO, the presence of oxygenfunctional groups enables the development of compact high sulfur loadingcathodes (>4 mgS cm–2) with a greatabilityto trap the soluble lithium polysulfides. Notably, the scalabilityof our system was further demonstrated by the assembly of prototypepouch cells delivering excellent capacities of 90 mA h (ResFArGO10 cell) and 70 mA h (ResFArGO5 and CAs cell) atC/10.
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Journal	ACS Applied Energy Materials [ACS Appl Energy Mater]
Volume Number	6
DOI	10.1021/acsaem.3c00177
PubMed Central reference number	PMC10052352
Issue Number	6
PubMed reference number	37009422
e-ISSN	25740962
Language	English
Publisher	American Chemical Society
Publisher Date	2023-03-16
Access Restriction	Open
Rights License	Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). © 2023 The Authors. Published by American Chemical Society
Subject Keyword	energy storage lithium−sulfur battery graphene-based cathodes high energy density pouchcell
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Chemical Engineering Materials Chemistry Electrical and Electronic Engineering Electrochemistry