Copper-doped sodium titanate with a hierarchical micro/nano structure as an anode material for Na-ion batteries

Opra, D.P.; Zheleznov, V.V.; Sinebryukhov, S.L.; Sokolov, A.A.; Ziatdinov, A.M.; Podgorbunsky, A.B.; Gerasimenko, A.V.; Ustinov, A. Yu; Kuryavy, V.G.; Saritsky, D.A.; Neumoin, A.I.; Zaytsev, N.I.; Polyakova, N.V.; Gnedenkov, S.V.

doi:10.1016/j.jpowsour.2024.234230

Journal of Power Sources

2024

DOI: 10.1016/j.jpowsour.2024.234230

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Copper-doped sodium titanate with a hierarchical micro/nano structure as an anode material for Na-ion batteries

D.P. Opra,

V.V. Zheleznov,

S.L. Sinebryukhov

et al.

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Deeper Insights into the Morphology Effect of Na₂Ti₃O₇ Nanoarrays on Sodium‐Ion Storage

Chen,

Li,

Gao

et al. 2024

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Na2Ti3O7‐based anodes show great promise for Na+ storage in sodium‐ion batteries (SIBs), though the effect of Na2Ti3O7 morphology on battery performance remains poorly understood. Herein, hydrothermal syntheses is used to prepare free‐standing Na2Ti3O7 nanosheets or Na2Ti3O7 nanotubes on Ti foil substrates, with the structural and electrochemical properties of the resulting electrodes explored in detail. Results show that the Na2Ti3O7 nanosheet electrode (NTO NSs) delivered superior performance in terms of reversible capacity, rate capability, and especially long‐term durability in SIBs compared to its nanotube counterpart (NTO NTs). Electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM) investigations, combined with density functional theory calculations, demonstrated that the flexible 2D Na2Ti3O7 nanosheets are mechanically more robust than the rigid Na2Ti3O7 nanotube arrays during prolonged battery cycling, explaining the superior durability of the NTO NSs electrode. This work prompts the use of anodes based on Na2Ti3O7 nanosheets in the future development of high‐performance SIBs.

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Deeper Insights into the Morphology Effect of Na₂Ti₃O₇ Nanoarrays on Sodium‐Ion Storage

Chen,

Li,

Gao

et al. 2024

Small

View full text Add to dashboard Cite

show abstract

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Copper-doped sodium titanate with a hierarchical micro/nano structure as an anode material for Na-ion batteries

Cited by 1 publication

References 54 publications

Deeper Insights into the Morphology Effect of Na₂Ti₃O₇ Nanoarrays on Sodium‐Ion Storage

Deeper Insights into the Morphology Effect of Na₂Ti₃O₇ Nanoarrays on Sodium‐Ion Storage

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Copper-doped sodium titanate with a hierarchical micro/nano structure as an anode material for Na-ion batteries

Cited by 1 publication

References 54 publications

Deeper Insights into the Morphology Effect of Na2Ti3O7 Nanoarrays on Sodium‐Ion Storage

Deeper Insights into the Morphology Effect of Na2Ti3O7 Nanoarrays on Sodium‐Ion Storage

Contact Info

Product

Resources

About

Deeper Insights into the Morphology Effect of Na₂Ti₃O₇ Nanoarrays on Sodium‐Ion Storage

Deeper Insights into the Morphology Effect of Na₂Ti₃O₇ Nanoarrays on Sodium‐Ion Storage