Artificial dual solid-electrolyte interfaces based on in situ organothiol transformation in lithium sulfur battery

Guo, Wei; Zhang, Wanying; Si, Yubing; Wang, Donghai; Fu, Yongzhu; Manthiram, Arumugam

doi:10.1038/s41467-021-23155-3

Cited by 183 publications

(147 citation statements)

References 61 publications

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“…Several electrolyte‐based methods have been suggested to act as not only a cathodic redox mediator but also to form a protective layer on the anode. [ 25,26 ] Gu et al. reported carbon disulfide (CS 2 ) as an electrolyte additive that can react with polysulfides and induce the formation of thiosulfate‐containing protective layers on both the anode and cathode.…”

Section: Introductionmentioning

confidence: 99%

Lithium Trithiocarbonate as a Dual‐Function Electrode Material for High‐Performance Lithium–Sulfur Batteries

Sul

Bhargav

Manthiram

2022

Advanced Energy Materials

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The development of practical lithium–sulfur (Li–S) batteries with prolonged cycle life and high Coulombic efficiency is limited by both parasitic reactions from dissolved polysulfides and mossy lithium deposition. To address these challenges, here lithium trithiocarbonate (Li2CS3)‐coated lithium sulfide (Li2S) is employed as a dual‐function cathode material to improve the cycling performance of Li–S batteries. Interestingly, at the cathode, Li2CS3 forms an oligomer‐structured layer on the surface to suppress polysulfide shuttle. The presence of Li2CS3 alters the conventional sulfur reaction pathway, which is supported by material characterization and density functional theory calculation. At the anode, a stable in situ solid electrolyte interphase layer with a lower Li‐ion diffusion barrier is formed on the Li‐metal surface to engender enhanced lithium plating/stripping performance upon cycling. Consequently, the obtained anode‐free full cells with Li2CS3 exhibit a superior capacity retention of 51% over 125 cycles, whereas conventional Li2S cells retain only 26%. This study demonstrates that Li2CS3 inclusion is an efficient strategy for designing high‐energy‐density Li–S batteries with extended cycle life.

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Section: Introductionmentioning

confidence: 99%

Lithium Trithiocarbonate as a Dual‐Function Electrode Material for High‐Performance Lithium–Sulfur Batteries

Sul

Bhargav

Manthiram

2022

Advanced Energy Materials

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“…Irregular voids left in the BTT–Li interface layer during exchange reaction were filled by LiF particles from the electrolyte decomposition, forming an even and compact organic/ inorganic protective layer. [ 186 ] Another additive, thionyl chloride (SOCl 2 ), can react with Li anode spontaneously to establish dual‐functions LiCl‐rich surface film (Figure 12c–e ). The generated S from the redox reaction provides extra capacity and another product Li 2 SO 3 contributes to densifying the SEI layer to prohibit the shuttle of LiPSs.…”

Section: Strategies For Polysulfides Shuttle Inhibition Along the Shu...mentioning

confidence: 99%

Recent Advances and Strategies toward Polysulfides Shuttle Inhibition for High‐Performance Li–S Batteries

et al. 2022

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Lithium–sulfur (Li–S) batteries are regarded as the most promising next‐generation energy storage systems due to their high energy density and cost‐effectiveness. However, their practical applications are seriously hindered by several inevitable drawbacks, especially the shuttle effects of soluble lithium polysulfides (LiPSs) which lead to rapid capacity decay and short cycling lifespan. This review specifically concentrates on the shuttle path of LiPSs and their interaction with the corresponding cell components along the moving way, systematically retrospect the recent advances and strategies toward polysulfides diffusion suppression. Overall, the strategies for the shuttle effect inhibition can be classified into four parts, including capturing the LiPSs in the sulfur cathode, reducing the dissolution in electrolytes, blocking the shuttle channels by functional separators, and preventing the chemical reaction between LiPSs and Li metal anode. Herein, the fundamental aspect of Li–S batteries is introduced first to give an in‐deep understanding of the generation and shuttle effect of LiPSs. Then, the corresponding strategies toward LiPSs shuttle inhibition along the diffusion path are discussed step by step. Finally, general conclusions and perspectives for future research on shuttle issues and practical application of Li–S batteries are proposed.

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“…Guo et al reported organothiol as a functional electrolyte additive which has thiol groups. [ 43 ] The thiol groups can react with Li metal and elemental sulfur (Figure 9c ), and construct functional layers. 1,3,5‐Benzenetrithiol (BTT) with the symmetrical sulfhydryl groups on the benzene ring is a typical organothiol.…”

Section: Organosulfur Additives In Li‐s Batteriesmentioning

confidence: 99%

Section: Organosulfur Additives In Li‐s Batteriesmentioning

confidence: 99%

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Advances of Organosulfur Materials for Rechargeable Metal Batteries

et al. 2021

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Battery materials have become a hotspot in the academic research. Organosulfur compounds are considered as a promising class of cathode materials for rechargeable metal batteries. They have attracted increasing attention in recent years after a long-term stagnancy since 1980s. Recent studies have focused on the understanding of redox mechanism of linear organosulfur molecules R-S n -R with defined structures. In addition, some new organosulfur compounds are developed. The reversible sulfur-sulfur (S-S) bond breakage/formation of organosulfur in batteries makes them applicable as functional materials in batteries. In this review, new organosulfur materials including molecules, polymers, and composites are introduced. In the following, organosulfur-inorganic hybrid materials are discussed, which have shown unique redox process and enhanced battery performance. In the third part, organosulfur additives are used in Li-S batteries, which can improve the formation of solid-electrolyte interphase (SEI) and alter the redox pathways of sulfur cathodes. In the fourth part, organosulfur materials used in other metal batteries are introduced. Lastly, a summary and some perspectives are given. This review presents an overview of the recent advances of organosulfur materials in batteries and provides guidance for the future development of these materials.

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Artificial dual solid-electrolyte interfaces based on in situ organothiol transformation in lithium sulfur battery

Cited by 183 publications

References 61 publications

Lithium Trithiocarbonate as a Dual‐Function Electrode Material for High‐Performance Lithium–Sulfur Batteries

Lithium Trithiocarbonate as a Dual‐Function Electrode Material for High‐Performance Lithium–Sulfur Batteries

Recent Advances and Strategies toward Polysulfides Shuttle Inhibition for High‐Performance Li–S Batteries

Advances of Organosulfur Materials for Rechargeable Metal Batteries

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