Tracking the confinement effect of highly dispersive carbon in a tungsten oxide/carbon nanocomposite: conversion anode materials in lithium ion batteries

Jo, Changshin; Lim, Won‐Gwang; Dao, Anh Ha; Kim, Seongbeen; Kim, Seoa; Yoon, Seung Soo; Lee, Jun Young

doi:10.1039/c7ta07979f

Cited by 27 publications

(22 citation statements)

References 48 publications

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“…. When used as the electrode of LIBs, the intercalation reaction is as follows: WO 3 + x Li + + x e − ↔ Li x WO 3 . In 2006, Gu et al synthesized a single‐crystal of hexagonal tungsten trioxide nanowires (h‐WO 3 NWs) via a ionic liquid‐assisted hydrothermal route hydrothermal approach ( Figure a) .…”

Section: Tungsten‐based Materials For Libssupporting

confidence: 86%

“…In addition to intercalation/deintercalation reaction, h‐WO 3 can also react with lithium reversibly by means of a conversion reaction on the lower voltage range. After the intercalation reaction, the conversion reaction proceeds as follows: Li x WO 3 + (6 − x )Li + + (6 − x )e − ↔ W + 3Li 2 O . According to both the intercalation reaction and the conversion reaction, the theoretical specific capacity of WO 3 is calculated to be 693.6 mA h g −1 .…”

Section: Tungsten‐based Materials For Libsmentioning

confidence: 99%

“…Most recently, Jo et al fabricated a highly ordered mesoporous nanostructure of tungsten oxide/carbon composite (m‐WO x /C) via the self‐assembly method ( Figure a,b) . The crystalline metal oxide was formed after the heat treatment and amorphous carbon was well dispersed in metal oxide.…”

Section: Tungsten‐based Materials For Libsmentioning

confidence: 99%

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Tungsten‐Based Materials for Lithium‐Ion Batteries

Zheng

Tang

et al. 2018

Adv Funct Materials

136

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Lithium-ion batteries are widely used as reliable electrochemical energy storage devices due to their high energy density and excellent cycling performance. The search for anode materials with excellent electrochemical performances remains critical to the further development of lithium-ion batteries. Tungsten-based materials are receiving considerable attention as promising anode materials for lithium-ion batteries owing to their high intrinsic density and rich framework diversity. This review describes the advances of exploratory research on tungsten-based materials (tungsten oxide, tungsten sulfide, tungsten diselenide, and their composites) in lithium-ion batteries, including synthesis methods, microstructures, and electrochemical performance. Some personal prospects for the further development of this field are also proposed.

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Section: Tungsten‐based Materials For Libssupporting

confidence: 86%

Section: Tungsten‐based Materials For Libsmentioning

confidence: 99%

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Tungsten‐Based Materials for Lithium‐Ion Batteries

Zheng

Tang

et al. 2018

Adv Funct Materials

136

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“…Jo et al. developed an amorphous carbon/m‐WO 3 nanocomposite ( m ‐WO x /C) for LIBs . The dispersion of carbon in the tungsten oxide matrix offered good electrical contact between the tungsten/Li 2 O phases and minimized the charge‐transfer resistance.…”

Section: Current Advances In Wo3‐based Batteriesmentioning

confidence: 99%

“…Jo et al developed an amorphous carbon/m-WO 3 nanocomposite (m-WO x /C) for LIBs. [162] The dispersion of carbon in the tungsten oxide matrix offered good electrical contact between the tungsten/Li 2 Op hases and minimized the charge-transfer resistance. The m-WO x /C materiale xhibited a discharge capacity of 317 mAh g À1 in the first cycle, 150 mAh g À1 after the 10th cycle, and 100 mAh g À1 after 300 cycles.Y ang et al prepared WO 3 flower-like architectures through the calcination of WO 3 ·0.33 H 2 Op repared by using a hydrothermalm ethod for LIBs.…”

Section: Current Advances In Wo 3 -Based Batteriesmentioning

confidence: 99%

Review on Recent Progress in the Development of Tungsten Oxide Based Electrodes for Electrochemical Energy Storage

Shinde

2019

ChemSusChem

167

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Current progress in the advancement of energy‐storage devices is the most important factor that will allow the scientific community to develop resources to meet the global energy demands of the 21st century. Nanostructured materials can be used as effective electrodes for energy‐storage devices because they offer various promising features, including high surface‐to‐volume ratios, exceptional charge‐transport features, and good physicochemical properties. Until now, the successful research frontrunners have focused on the preparation of positive electrode materials for energy‐storage applications; nevertheless, the electrochemical performance of negative electrodes is less frequently reported. This review mainly focuses on the current progress in the development of tungsten oxide‐based electrodes for energy‐storage applications, primarily supercapacitors (SCs) and batteries. Tungsten is found in various stoichiometric and nonstoichiometric oxides. Among the different tungsten oxide materials, tungsten trioxide (WO3) has been intensively investigated as an electrode material for different applications because of its excellent charge‐transport features, unique physicochemical properties, and good resistance to corrosion. Various WO3 composites, such as WO3/carbon, WO3/polymers, WO3/metal oxides, and tungsten‐based binary metal oxides, have been used for application in SCs and batteries. However, pristine WO3 suffers from a relatively low specific surface area and low energy density. Therefore, it is crucial to thoroughly summarize recent progress in utilizing WO3‐based materials from various perspectives to enhance their performance. Herein, the potential‐ and pH‐dependent behavior of tungsten in aqueous media is discussed. Recent progress in the advancement of nanostructured WO3 and tungsten oxide‐based composites, along with related charge‐storage mechanisms and their electrochemical performances in SCs and batteries, is systematically summarized. Finally, remarks are made on future research challenges and the prospect of using tungsten oxide‐based materials to further upgrade energy‐storage devices.

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Operando Combined SAXS/XRD/XAFS Measurements of Lithium Conversion Battery

Takabayashi,

Kimura,

Miyazaki

et al. 2024

Advanced Sustainable Systems

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Many chemical reactions are accompanied by concerted phenomena, such as variance transition, structural changes, and particle formation. Various measurement techniques are employed to understand the whole picture of such concerted phenomena. A combination of small‐angle X‐ray scattering (SAXS), X‐ray diffraction (XRD), and X‐ray absorption fine structure (XAFS) is useful for studying concerted phenomena that occur, for example, inside rechargeable batteries. This combination can cover large lengths from 1 Å to several hundred nm. Operando measurements using this combination of methods can follow reactions during the charging and discharging of a rechargeable battery in a single experimental run. Fixed‐exit optics enable irradiation at the same point in a wide energy range. By employing 2D detectors for XRD and SAXS and using a quick XAFS technique, one can make the interval of each measurement sufficiently short to track various phenomena during charging and discharging. Here, an application of the system for alternating SAXS/XRD/XAFS measurements constructed in BL28XU, SPring‐8, Japan to the study of rechargeable batteries, is presented.

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Tracking the confinement effect of highly dispersive carbon in a tungsten oxide/carbon nanocomposite: conversion anode materials in lithium ion batteries

Abstract: A variety of transition metal binary compounds, whose reaction mechanism involves intercalation-initiated conversion, have been extensively studied as anode materials in lithium ion batteries (LIBs).

Cited by 27 publications

References 48 publications

Tungsten‐Based Materials for Lithium‐Ion Batteries

Tungsten‐Based Materials for Lithium‐Ion Batteries

Review on Recent Progress in the Development of Tungsten Oxide Based Electrodes for Electrochemical Energy Storage

Operando Combined SAXS/XRD/XAFS Measurements of Lithium Conversion Battery

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