A non-aqueous Li/organosulfur semi-solid flow battery

Wang, Chenhui; Lai, Qinzhi; Xu, Pengcheng; Li, Xianfeng; Zhang, Huamin

doi:10.1016/j.cclet.2017.12.025

Cited by 15 publications

(7 citation statements)

References 22 publications

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“…As shown in Figure 3a, the titanium foam electrode which has a titanium terminal at the center is manufactured by 3D printing. The calculated active area of the electrode is 24.72 cm 2 . Compared with traditional graphite electrodes, titanium foam electrodes have good electrical conductivity, good rigidity and can be machined into any desired shape [15].…”

Section: Electrode and Membrane Framementioning

confidence: 98%

“…Energy storage is the key technology to promote the replacement of traditional energy types and closely affects the development of new energy technology, making how to build efficient, reliable and cost-effective large-scale energy storage systems critical for societal development [1,2]. Due to flow batteries' long cycle life, deep discharge depth, high safety, low cost and high energy efficiency, they are considered an important long-term energy storage mode [3].…”

Section: Introductionmentioning

confidence: 99%

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A Newly Designed Modular ZnBr2 Single Cell Structure

et al. 2020

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We describe a ZnBr2 single cell which has a highly modular symmetrical structure. With designed polyethylene shell frames, membrane frame and composite titanium-carbon felt electrodes, it has a higher energy density and is more flexible compared with traditional flow batteries. We repeatedly tested its performance, which showed good tightness, high reliability and a high energy efficiency of 75%. Due to the special symmetrical structure and modular design, it is easy to assemble and disassemble, which makes it suitable as a test platform for electrodes, membranes and electrolyte performance testing. The designed modular flow cell has low cost and high energy density, and can provide good guidance for flow battery research.

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Section: Electrode and Membrane Framementioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

A Newly Designed Modular ZnBr2 Single Cell Structure

et al. 2020

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“…Organosulfur materials, especially small molecules such as DMTS, DPDS, DPTS, and DpyDS are highly soluble in organic solvent, which makes them suitable as active materials or adjuvants in catholyte for nonaqueous redox flow batteries (RFBs). Tetramethylthiuram disulfide (TMTD) with relatively low molecular weight was first adopted as the active material of a nonaqueous Li-organosulfur RFB by Wang et al [50] However, perhaps due to the shuttle of active materials or the irreversible chemical reaction between organosulfur lithium compound (discharged product) and carbonate electrolyte, the Li-organosulfur RFB shows rapid decay of capacity. Recently, Zhang et al use tetraethylthiuram disulfide (TETD) as an active material for nonaqueous RFBs.…”

Section: Redox Flow Batteriesmentioning

confidence: 99%

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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“…They have demonstrated a combination of 20% LiCoO 2 (10.2 M) and 10% Li 4 Ti 5 O 12 (2.3 M) suspensions to achieve an energy density greater than 100 Wh L –1 . Recently, our group has demonstrated a sulfur-impregnated carbon (S/C) composite flow posolyte to further increase the performance of SSFBs. , Some other active materials have also been demonstrated in semisolid flow batteries such as LiNi 0.5 Mn 1.5 O 4 , LiFePO 4 , , organosulfur, silicon, , etc. Recently, a new concept of deep eutectic solvent (DES) has been proposed to increase the energy density of RFBs, which also showed a promising direction for novel RFBs. − For example, by using low-cost and highly concentrated Al DES and Fe DES, a Fe–Al hybrid battery delivered a high energy density of 166.2 Wh L –1 …”

mentioning

confidence: 99%

“…Recently, our group has demonstrated a sulfur-impregnated carbon (S/C) composite flow posolyte to further increase the performance of SSFBs. 34,35 Some other active materials have also been demonstrated in semisolid flow batteries such as LiNi 0.5 Mn 1.5 O 4 , 33 LiFePO 4 , 36,37 organosulfur, 38 silicon, 39,40 etc. Recently, a new concept of deep eutectic solvent (DES) has been proposed to increase the energy density of RFBs, which also showed a promising direction for novel RFBs.…”

mentioning

confidence: 99%

Lithium–Organic Nanocomposite Suspension for High-Energy-Density Redox Flow Batteries

Chen

Zhou

2018

ACS Energy Lett.

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Organic redox-active materials are promising for redox flow batteries (RFBs) owing to their inherent low-cost, vast abundance, and high structure tunability. However, many organic RFBs suffer from low energy density owing to low solubility. We demonstrate a facile lithium−organic nanocomposite suspension (LIONS) by melting solid organic materials into the void of carbon networks in the semisolid posolyte to achieve high-energy-density Li-RFBs. We demonstrate the first organic-based semisolid Li-RFBs using 10-methylphenothiazine (MPT), delivering a high volumetric capacity (55 Ah L −1 ) and energy density (190 Wh L −1 ) with high Coulombic efficiency (>98%) and cycling stability (>100 cycles). The demonstrated volumetric capacity is 8 fold that of the liquid-MPT RFB, achieving the highest energy density among Li−organic-based RFBs. LIONS is a universal approach to enable the use of lowsolubility organic materials in RFBs, providing a new direction for all insoluble organic active material to achieve low-cost and high-energy-density RFBs.

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A non-aqueous Li/organosulfur semi-solid flow battery

Cited by 15 publications

References 22 publications

A Newly Designed Modular ZnBr2 Single Cell Structure

A Newly Designed Modular ZnBr2 Single Cell Structure

Advances of Organosulfur Materials for Rechargeable Metal Batteries

Lithium–Organic Nanocomposite Suspension for High-Energy-Density Redox Flow Batteries

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