Ag-coated one-dimensional orthorhombic Nb2O5 fibers as high performance electrodes for lithium storage

Cheong, Jun Young; Youn, Doo Young; Kim, Chanhoon; Ogata, Alana F.; Bae, Jin Gook; Kim, Il‐Doo

doi:10.1016/j.electacta.2018.03.028

Cited by 30 publications

(11 citation statements)

References 31 publications

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“…As we know, silver metal has the highest electrical conductivity (≈6.3 × 10 7 S m −1 ). Ag‐coated 1D T‐Nb 2 O 5 fibers have been demonstrated to perform superior electrochemical energy storage performances . It exhibits high reversible capacities of 179.7 and 103.6 mA h g −1 at the current densities of 0.5 and 5 A g −1 , respectively.…”

Section: Nb2o5 Electrodesmentioning

confidence: 99%

Niobium‐Based Oxides Toward Advanced Electrochemical Energy Storage: Recent Advances and Challenges

Deng

Zhu

et al. 2019

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145

115

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Niobium‐based oxides including Nb2O5, TiNbxO2+2.5x compounds, M–Nb–O (M = Cr, Ga, Fe, Zr, Mg, etc.) family, etc., as the unique structural merit (e.g., quasi‐2D network for Li‐ion incorporation, open and stable Wadsley– Roth shear crystal structure), are of great interest for applications in energy storage systems such as Li/Na‐ion batteries and hybrid supercapacitors. Most of these Nb‐based oxides show high operating voltage (>1.0 V vs Li+/Li) that can suppress the formation of solid electrolyte interface film and lithium dendrites, ensuring the safety of working batteries. Outstanding rate capability is impressive, which can be derived from their fast intercalation pseudocapacitive kinetics. However, the intrinsic poor electrical conductivity hinders their energy storage applications. Various strategies including structure optimization, surface engineering, and carbon modification are effectively used to overcome the issues. This review provides a comprehensive summary on the latest progress of Nb‐based oxides for advanced electrochemical energy storage applications. Major impactful work is outlined, promising research directions, and various performance‐optimizing strategies, as well as the energy storage mechanisms investigated by combining theoretical calculations and various electrochemical characterization techniques. In addition, challenges and perspectives for future research and commercial applications are also presented.

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Section: Nb2o5 Electrodesmentioning

confidence: 99%

Niobium‐Based Oxides Toward Advanced Electrochemical Energy Storage: Recent Advances and Challenges

Deng

Zhu

et al. 2019

Small

145

115

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“…In response to this problem, researchers modify the solid-liquid interface or coat the surface of niobium-based materials for protection. [165] The use of polymers or other thin layers to improve the interfacial stability is another research direction, but it mostly faces other phase materials, rather than changing the niobium.…”

Section: Othersmentioning

confidence: 99%

Optimization Design and Application of Niobium‐Based Materials in Electrochemical Energy Storage

Lian

Yang

Wang

et al. 2020

Adv Energy and Sustain Res

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In various energy storage devices, the development and research of electrode materials has always been a key factor. Nb‐based materials are one choice of energy storage materials because of the good ion‐diffusion channels and high theoretical capacity. More importantly, their advantages, such as safe potential range, high structural stability, and highly reversible redox reaction with small strain, are conducive to efficient, safe, and stable energy storage development. Based on aforementioned superiority, much of the research is to further optimize performance of Nb‐based materials by unique nano‐morphology design, lattice regulation, and functional additives composition, showing good electrochemical performance in many kinds of devices. This review mainly introduces the classification of Nb‐based materials used for energy storage, their application in different battery systems, and common optimization methods. Accordingly, the deficiencies and prospects of Nb‐based materials are also discussed in detail.

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“…(2) where x represents the stoichiometric number of sodium ions, similar to those in LICs, LIBs, sodium ion and potassium ion batteries [33][34][35][36][37][38][39][40].…”

Section: Resultsmentioning

confidence: 99%

Nb2O5 nanotubes on carbon cloth for high performance sodium-ion capacitors

Jia

Jiang

et al. 2020

Sci. China Mater.

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Hybrid sodium-ion capacitors (SICs) bridge the gap between the supercapacitors (SCs) and batteries and have huge potential applications in large-scale energy storage. However, designing appropriate anode materials with fast kinetics behavior as well as long cycle life to match with the cathode electrodes remains a crucial challenge. Herein, Nb 2 O 5 nanotubes and nanowire-to-nanotube homo-junctions were directly grown on the carbon cloth (CC) via a simple hydrothermal process through regulating the pH value of solution. The as-prepared Nb 2 O 5 @CC nanotubes displayed a high reversible capacity of 175 mA h g −1 at the current density of 1 A g −1 with the coulombic efficiency of 97% after 1500 cycles. Besides, the SICs fabricated with Nb 2 O 5 @CC and activated carbon (AC) electrode materials showed a high energy density of 195 W h kg −1 at 120 W kg −1 , a power density of 7328 W kg −1 at 28 W h kg −1 and 80% of the capacitance retention after 5000 cycles. Additionally, the flexible SIC devices can operate normally at various bendable conditions. The Nb 2 O 5 @CC nanotubes in this work can be promising electrode materials in flexible and wearable energy storage devices.

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Ag-coated one-dimensional orthorhombic Nb2O5 fibers as high performance electrodes for lithium storage

Cited by 30 publications

References 31 publications

Niobium‐Based Oxides Toward Advanced Electrochemical Energy Storage: Recent Advances and Challenges

Niobium‐Based Oxides Toward Advanced Electrochemical Energy Storage: Recent Advances and Challenges

Optimization Design and Application of Niobium‐Based Materials in Electrochemical Energy Storage

Nb2O5 nanotubes on carbon cloth for high performance sodium-ion capacitors

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