Preparation of SnO2@rGO/CNTs/S composite and application for lithium-sulfur battery cathode material

Liu, Qingqing; Jiang, Qi; Jiang, Li; Peng, Junqi; Gao, Yike; Duan, Zhihong; Lü, Xiaoying

doi:10.1016/j.apsusc.2018.08.038

Cited by 65 publications

(23 citation statements)

References 28 publications

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“…A SnO 2 @rGO/CNTs/S composite was prepared to use as the cathode material of LSBs by a melting-diffusion strategy. [31] SnO 2 suppressed the shuttle effect by the effective adsorption of lithium polysulfides. Besides, a three-dimensional conductive network was formed by rGO and carbon CNTs, improving both the electrical conductivity and mechanical properties of composite materials.…”

Section: Three-dimensional Materialsmentioning

confidence: 99%

“…[13,27] In recent years, the application of SnO 2 -decorated sulfur host, separator, and interlayer in LSBs has been comprehensively covered. The materials that SnO 2 decorates for sulfur host, separator and interlayer include nanoparticles (zero dimension, 0D), [21,28] nanowires, nanorods and nanotubes (one dimension, 1D), [29,30] ultra-thin layered two-dimension (2D) materials [26,27,31,32] and carbon aerogels with an interconnect three-dimension (3D). [33][34][35][36] We will summarize and discuss the effects of SnO 2 -decoration on the adsorption of polysulfides in the cathode, separator, and interlayer of LSBs.…”

Section: Suppressing Shuttling Of Polysulfides By Snomentioning

confidence: 99%

See 1 more Smart Citation

Significant Constraints of SnO₂, SnS₂, and SnS₂/SnO₂ Heterostructures on Mitigating Polysulfide Shuttle Effects in Lithium‐Sulfur Batteries

et al. 2021

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Lithium-sulfur batteries (LSBs) are considered to be promising candidates for next-generation energy storage devices because of high theoretical capacity of 1675 mAh g À 1 . However, LSBs have failed to be put into practical applications mainly due to their shuttle effect. SnO 2 and SnS 2 stand out among many metal oxides and sulfides, and are frequently applied to LSBs research given their characteristics of easy preparation and good chemical stability. In particular, SnO 2 has a strong chemical adsorption effect on polysulfides through the SÀ SnÀ O chemical bonds; SnS 2 can effectively reduce the electrochemical polarization and improve the redox efficiency of polysulfides. This Minireview summarizes and evaluates the latest research progress of SnO 2 , SnS 2 , and SnO 2 /SnS 2 heterostructures applied in LSBs including the cathode, separator, and interlayer. The three materials show excellent electrochemical performance and can serve as viable candidates for polysulfide immobilizers to deal with the shuttle effect in LSBs.

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Section: Three-dimensional Materialsmentioning

confidence: 99%

Section: Suppressing Shuttling Of Polysulfides By Snomentioning

confidence: 99%

Significant Constraints of SnO₂, SnS₂, and SnS₂/SnO₂ Heterostructures on Mitigating Polysulfide Shuttle Effects in Lithium‐Sulfur Batteries

et al. 2021

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“…Intuitively, when the hydrothermal method is used, the interfacial properties of CoS 2 and CNTs improve and the electrical conductivity and discharge performance of the cathode are expected to increase. [90][91][92] However, in this study, the content is not shown, and the goal is to compare CoS 2 /CNTs with CoS 2 . Fig.…”

Section: Cos 2 and Bimetallic (Fe-co) Disulfidesmentioning

confidence: 99%

Recent Progress in Cathode Materials for Thermal Batteries

Kang

Cheong

et al. 2019

J. Korean Ceram. Soc

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Thermal batteries are reserve batteries with molten salts as an electrolyte, which activates at high temperature. Due to their excellent reliability, long shelf life, and mechanical robustness, thermal batteries are used in military applications. A high-performance cathode for thermal batteries should be considered in terms of its high capacity, high voltage, and high thermal stability. Research progress on cathode materials from the recent decade is reviewed in this article. The major directions of research were surface modification, compounding of existing materials, fabrication of thin film cathode, and development of new materials. In order to develop a high-performance cathode, a proper combination of these research directions is required while considering mass production and cost.

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Section: Extended Abstractmentioning

confidence: 99%

“…To resolve these problems, especially carbon materials are used to increase the conductivity. Due to their high electrical conductivity, porous carbon, carbon nanotubes (CNTs) and reduced graphene oxide (rGO) are generally used to enhance the conductivity of sulfur and Li2S / Li2S2 during charge-discharge process [3].In this work, we produced S-CNT-rGO nanocomposites as binderless free-standing paper. Firstly, functionalized MWCNTs were prepared with H2SO4/HNO3 mixture (3:1, v/v) and graphite oxide was produced by modified Hummers method.…”

mentioning

confidence: 99%

Free-Standing S-CNT-rGO Nanocomposite Paper Cathodes for Li-S Batteries

Şahin¹,

Köse²,

Dombaycıoğlu³

et al. 2019

Proceedings of the 5th World Congress on Mechanical, Chemical, and Material Engineering

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Extended AbstractFor electric vehicles (EVs), hybrid electric vehicles (HEVs), and smart electric grids, it is important to develop advanced energy storage systems due to the ever-increasing demands for high energy density and long-life energy sources. With a high theoretical gravimetric energy density of 2500 Wh kg -1 , Lithium-sulfur (Li-S) batteries are considered to be one of the most promising candidates in this respect [1]. However, the practical electrochemical performance of Li-S battery have been restricted by the low conductivity of sulfur and the insoluble and insulating lithium sulfides, Li2S2/Li2S on the cathode surface [2]. To resolve these problems, especially carbon materials are used to increase the conductivity. Due to their high electrical conductivity, porous carbon, carbon nanotubes (CNTs) and reduced graphene oxide (rGO) are generally used to enhance the conductivity of sulfur and Li2S / Li2S2 during charge-discharge process [3].In this work, we produced S-CNT-rGO nanocomposites as binderless free-standing paper. Firstly, functionalized MWCNTs were prepared with H2SO4/HNO3 mixture (3:1, v/v) and graphite oxide was produced by modified Hummers method. Then, Na2S2O3.5H2O precursor was added into the mixture of graphite oxide and CNTs. After ultrasonication of 2h, HCl solution was added dropwise to resulting homogeneous suspension. During this process, the sulfur anions reduced and deposited on the surface of the graphene oxide and CNTs as sulfur nanoparticles. The resulting suspension was filtered through a 0.22 µm porous PVDF membrane filter (Millipore, Durapore Membrane) with a vacuum filtration system and washed three times with deionized water and ethanol. After the paper dried, it was peeled off the membrane and flexible S-CNT-GO paper was obtained. To obtain S-CNT-rGO from this structure, the S-CNT-GO paper was treated with a dilute solution of hydrazine as reducing agent. Obtained papers were characterized by field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectrometer (EDS), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) analyses. Electrochemical analysis was performed using battery tester device. Charge-discharge capabilities, specific capacity and capacity retention parameters were investigated of the cathode electrodes assembled in the type of CR2032 cells. When the results have been evaluated, it has seen that the aimed structure of S-CNT-rGO has been obtained for advanced Li battery applications.

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Preparation of SnO2@rGO/CNTs/S composite and application for lithium-sulfur battery cathode material

Cited by 65 publications

References 28 publications

Significant Constraints of SnO₂, SnS₂, and SnS₂/SnO₂ Heterostructures on Mitigating Polysulfide Shuttle Effects in Lithium‐Sulfur Batteries

Significant Constraints of SnO₂, SnS₂, and SnS₂/SnO₂ Heterostructures on Mitigating Polysulfide Shuttle Effects in Lithium‐Sulfur Batteries

Recent Progress in Cathode Materials for Thermal Batteries

Free-Standing S-CNT-rGO Nanocomposite Paper Cathodes for Li-S Batteries

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Preparation of SnO2@rGO/CNTs/S composite and application for lithium-sulfur battery cathode material

Cited by 65 publications

References 28 publications

Significant Constraints of SnO2, SnS2, and SnS2/SnO2 Heterostructures on Mitigating Polysulfide Shuttle Effects in Lithium‐Sulfur Batteries

Significant Constraints of SnO2, SnS2, and SnS2/SnO2 Heterostructures on Mitigating Polysulfide Shuttle Effects in Lithium‐Sulfur Batteries

Recent Progress in Cathode Materials for Thermal Batteries

Free-Standing S-CNT-rGO Nanocomposite Paper Cathodes for Li-S Batteries

Contact Info

Product

Resources

About

Significant Constraints of SnO₂, SnS₂, and SnS₂/SnO₂ Heterostructures on Mitigating Polysulfide Shuttle Effects in Lithium‐Sulfur Batteries

Significant Constraints of SnO₂, SnS₂, and SnS₂/SnO₂ Heterostructures on Mitigating Polysulfide Shuttle Effects in Lithium‐Sulfur Batteries