Excellent dispersibility of single-walled carbon nanotubes in highly concentrated electrolytes and application to gel electrode for Li-S batteries

Tamate, Ryota; Saruwatari, Aya; Nakanishi, Azusa; Matsumae, Yoshiharu; Ueno, Kazuhide; Dokko, Kaoru; Watanabe, Masayoshi

doi:10.1016/j.elecom.2019.106598

Cited by 17 publications

(14 citation statements)

References 30 publications

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“…Therefore, the incorporation of extra electronic/ionic conductors into the cathode materials for ASSPE-based Li-S cells is highly needed. Previous studies have demonstrated that carbon materials [e.g., acetylene black (AB) [49,50] , Ketjenblack (KB) [51] , graphene oxide (GO) [52,53] and graphene-carbon nanotubes [54] ] and Li + conductive polymers [e.g., polyethylene glycol (PEG)] are the most effective and appealing candidates for use in Li-S cells to enhance the electronic/ionic conductivities of sulfur cathodes. For example, a composite cathode with PEG-grafted graphene oxide (GO) was reported by Zhang et al [52] , serving as a Li-ion conductor, with the grafted PEG in direct contact with the electron conductor (i.e., GO), which greatly enhanced the Li-ion transport efficiency.…”

Section: All-solid-state Polymer Electrolytesmentioning

confidence: 99%

“…Previous studies have demonstrated that carbon materials [e.g., acetylene black (AB) [49,50] , Ketjenblack (KB) [51] , graphene oxide (GO) [52,53] and graphene-carbon nanotubes [54] ] and Li + conductive polymers [e.g., polyethylene glycol (PEG)] are the most effective and appealing candidates for use in Li-S cells to enhance the electronic/ionic conductivities of sulfur cathodes. For example, a composite cathode with PEG-grafted graphene oxide (GO) was reported by Zhang et al [52] , serving as a Li-ion conductor, with the grafted PEG in direct contact with the electron conductor (i.e., GO), which greatly enhanced the Li-ion transport efficiency. In addition, cathode preparation methods, e.g., gas-phase mixing, ball-milling and liquid deposition methods, also have a significant impact on improving the ionic conductivity of cathodes [48] .…”

Section: All-solid-state Polymer Electrolytesmentioning

confidence: 99%

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Perspective of polymer-based solid-state Li-S batteries

Castillo¹,

Qiao²,

Santiago³

et al. 2022

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Li-S batteries, as the most promising post Li-ion technology, have been intensively investigated for more than a decade. Although most previous studies have focused on liquid systems, solid electrolytes, particularly all-solidstate polymer electrolytes (ASSPEs) and quasi-solid-state polymer electrolyte (QSSPEs), are appealing for Li-S cells due to their excellent flexibility and mechanical stability. Such Li-S batteries not only provide significantly improved safety but are also expected to augment the all-inclusive energy density compared to liquid systems. Therefore, this perspective briefly summarizes the recent progress on polymer-based solid-state Li-S batteries, with a special focus on electrolytes, including ASSPEs and QSSPEs. Furthermore, future work is proposed based on the existing development and current challenges.

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Section: All-solid-state Polymer Electrolytesmentioning

confidence: 99%

Section: All-solid-state Polymer Electrolytesmentioning

confidence: 99%

Perspective of polymer-based solid-state Li-S batteries

Castillo¹,

Qiao²,

Santiago³

et al. 2022

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“…Among all the candidates, carbon materials are the most commonly used conductor in solid-state Li–S batteries for their low density and superior electronic conductivity . A variety of carbon materials have been employed in the cathode of SSLSB, including acetylene black (AB), ,,, mesoporous carbon material such as ordered mesoporous carbon spheres (OMCs) and CMK-3, , carbon fibers, , graphene nanosheets, single-walled carbon nanotubes (SWCNTs), etc. The structure design of carbon materials in the cathode is an effective way to facilitate the cathode reaction kinetics.…”

Section: Cathodes Of Solid-state Li–s Batterymentioning

confidence: 99%

A Review of Solid-State Lithium–Sulfur Battery: Ion Transport and Polysulfide Chemistry

Pan

Cheng

et al. 2020

Energy Fuels

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The lithium−sulfur (Li−S) battery has long been a research hotspot due to its high theoretical specific capacity, low cost, and nontoxicity. However, there are still some challenges impeding the Li−S battery from practical application, such as the shuttle effect of lithium-polysulfides (LiPSs), the growth of lithium dendritic, and the potential leakage risk of liquid electrolytes. Substitution of liquid electrolytes with solid-state electrolytes (SSEs) is an effective strategy to relieve or even solve these problems. This review focuses on the most crucial issues of the solid-state Li−S battery (SSLSB) and exhibits the recent progress in these fields. SSEs applicable in the Li−S battery including inorganic glassy ceramics and ceramics, organic polymers, and inorganic−organic hybrid electrolytes are reviewed. Then, the establishment of Li-ion pathways inside the cathode is discussed in detail. We also probe into the unique polysulfide chemistry of the Li−S battery and expound our opinions. Finally, conclusions and perspectives are outlined for the further development of SSLSBs.

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“…CNTs dispersions can be used for many applications, such as lubricants [ 40 , 41 , 42 ], polymer nanocomposites [ 43 ], and more recently it has been drawing the attention of the scientific community for the development of next-generation porous solid-state electrolytes [ 44 , 45 , 46 , 47 ] and as electrode materials [ 48 ].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Carbon Nanomaterials Dispersions: Can Metal Decoration of MWCNTs Improve Their Physicochemical Properties?

et al. 2021

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A suitable dispersion of carbon materials (e.g., carbon nanotubes (CNTs)) in an appropriate dispersant media, is a prerequisite for many technological applications (e.g., additive purposes, functionalization, mechanical reinforced materials for electrolytes and electrodes for energy storage applications, etc.). Deep eutectic solvents (DES) have been considered as a promising “green” alternative, providing a versatile replacement to volatile organic solvents due to their unique physical-chemical properties, being recognized as low-volatility fluids with great dispersant ability. The present work aims to contribute to appraise the effect of the presence of MWCNTs and Ag-functionalized MWCNTs on the physicochemical properties (viscosity, density, conductivity, surface tension and refractive index) of glyceline (choline chloride and glycerol, 1:2), a Type III DES. To benefit from possible synergetic effects, AgMWCNTs were prepared through pulse reverse electrodeposition of Ag nanoparticles into MWCNTs. Pristine MWCNTs were used as reference material and water as reference dispersant media for comparison purposes. The effect of temperature (20 to 60 °C) and concentration on the physicochemical properties of the carbon dispersions (0.2–1.0 mg cm−3) were assessed. In all assessed physicochemical properties, AgMWCNTs outperformed pristine MWCNTs dispersions. A paradoxical effect was found in the viscosity trend in glyceline media, in which a marked decrease in the viscosity was found for the MWCNTs and AgMWCNTs materials at lower temperatures. All physicochemical parameters were statistically analyzed using a two-way analysis of variance (ANOVA), at a 5% level of significance.

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Excellent dispersibility of single-walled carbon nanotubes in highly concentrated electrolytes and application to gel electrode for Li-S batteries

Cited by 17 publications

References 30 publications

Perspective of polymer-based solid-state Li-S batteries

Perspective of polymer-based solid-state Li-S batteries

A Review of Solid-State Lithium–Sulfur Battery: Ion Transport and Polysulfide Chemistry

Characterization of Carbon Nanomaterials Dispersions: Can Metal Decoration of MWCNTs Improve Their Physicochemical Properties?

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