A multifunctional cathode sodiation additive for high-performance sodium-ion batteries

Zhang, Rui; Wang, Yan; Liu, Runnan; Sun, Dan; Tang, Yougen; Xie, Zhiyong; Wang, Haiyan

doi:10.1039/d2ta07910k

Cited by 9 publications

(7 citation statements)

References 44 publications

(68 reference statements)

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“…31 Meanwhile, inorganic KF species are produced by redox reactions between metal K and PVDF. 32,33 As a consequence, the prefabricated K-ion SEI generated from these two reactions contains both organic and inorganic components (formulas 3 and 4). For comparison, the NTO electrode was also prepared by immersing the TiO 2 anode into 1 M of Na-Nt-DME solution.…”

Section: Resultsmentioning

confidence: 99%

“…Once the K + is inserted, its low potential triggers the complex redox and polymerization of K + and DME solvent, forming ethereal-oligomers, ether potassium salts, and carbonate species, such as alkyl carbonates . Meanwhile, inorganic KF species are produced by redox reactions between metal K and PVDF. , As a consequence, the prefabricated K-ion SEI generated from these two reactions contains both organic and inorganic components (formulas 3 and 4). For comparison, the NTO electrode was also prepared by immersing the TiO 2 anode into 1 M of Na-Nt-DME solution.…”

Section: Resultsmentioning

confidence: 99%

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Significantly Improving the Initial Coulombic Efficiency of TiO₂ Anode for Sodium-Ion Batteries

Wang,

Tang,

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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Titanium dioxide (TiO2) can serve as a candidate anode material for sodium-ion batteries (SIBs) with the merits of their low cost, abundance, and environment friendliness. However, its low initial Coulombic efficiency (ICE) and sluggish sodium-ion diffusion greatly limit its further practical applications. Herein, we report a one-step prepotassiation strategy to modify commercial TiO2 by a spontaneous chemical reaction using potassium naphthalene (K-Nt). Prepotassiation effectively compensates for the irreversible Na loss and induces a homogeneous, dense, and robust artificial solid electrolyte interphase (SEI) on its surface. The well-distributed artificial SEI suppresses the excessive electrolyte decomposition, contributing to rapid interfacial kinetics and stable Na+ insertion/extraction. Therefore, such modified commercial TiO2 anodes demonstrate significantly improved ICE (72.4%) and outstanding rate performance (176.4 mAh g–1 at 5 A g–1). This simple and efficient method for promoting ICEs and interfacial chemistry also demonstrates universality and practical value for other anodes in SIBs.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Significantly Improving the Initial Coulombic Efficiency of TiO₂ Anode for Sodium-Ion Batteries

Wang,

Tang,

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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“…Thus, extensive efforts must be made to develop electrolytes capable of operating under a wide range of temperatures and potential windows, with the least parasitic reactions possible at the electrodes. [ 377 ]…”

Section: Conclusion and Future Prospectsmentioning

confidence: 99%

Unleashing the Potential of Sodium‐Ion Batteries: Current State and Future Directions for Sustainable Energy Storage

Singh

Islam

Meena

et al. 2023

Adv Funct Materials

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Rechargeable sodium‐ion batteries (SIBs) are emerging as a viable alternative to lithium‐ion battery (LIB) technology, as their raw materials are economical, geographically abundant (unlike lithium), and less toxic. The matured LIB technology contributes significantly to digital civilization, from mobile electronic devices to zero electric‐vehicle emissions. However, with the increasing reliance on renewable energy sources and the anticipated integration of high‐energy‐density batteries into the grid, concerns have arisen regarding the sustainability of lithium due to its limited availability and consequent price escalations. In this context, SIBs have gained attention as a potential energy storage alternative, benefiting from the abundance of sodium and sharing electrochemical characteristics similar to LIBs. Furthermore, high‐entropy chemistry has emerged as a new paradigm, promising to enhance energy density and accelerate advancements in battery technology to meet the growing energy demands. This review uncovers the fundamentals, current progress, and the views on the future of SIB technologies, with a discussion focused on the design of novel materials. The crucial factors, such as morphology, crystal defects, and doping, that can tune electrochemistry, which should inspire young researchers in battery technology to identify and work on challenging research problems, are also reviewed.

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“…15,16 So far, tentative pre-sodiation strategies have been developed mainly in three ways. The rst is using sodium containing additives (such as sodium metal oxides/organics/salts) mixed with activated carbon at the positive electrode, [17][18][19][20] thereby providing sodium ions to the negative side during the initial charge. Unfortunately, this process is problematic, which suffers from either dead-mass of additives or the production of gas, 17,[21][22][23][24] which inevitably decreases the energy density of SICs and/or greatly complicates the subsequent production process.…”

Section: Introductionmentioning

confidence: 99%

Electrochemically prelithiated carbon anodes with regulated Na-ion intercalation behaviours for advanced sodium-ioni energy storage devices

Chen

et al. 2023

J. Mater. Chem. A

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A multifunctional cathode sodiation additive for high-performance sodium-ion batteries

Abstract: Sodium-ion batteries (SIBs) demonstrate great application prospects for large-scale energy storage owing to the merits of low cost and abundant sodium resources. Nevertheless, the low initial Coulombic efficiency of anode...

Cited by 9 publications

References 44 publications

Significantly Improving the Initial Coulombic Efficiency of TiO₂ Anode for Sodium-Ion Batteries

Significantly Improving the Initial Coulombic Efficiency of TiO₂ Anode for Sodium-Ion Batteries

Unleashing the Potential of Sodium‐Ion Batteries: Current State and Future Directions for Sustainable Energy Storage

Electrochemically prelithiated carbon anodes with regulated Na-ion intercalation behaviours for advanced sodium-ioni energy storage devices

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A multifunctional cathode sodiation additive for high-performance sodium-ion batteries

Abstract: Sodium-ion batteries (SIBs) demonstrate great application prospects for large-scale energy storage owing to the merits of low cost and abundant sodium resources. Nevertheless, the low initial Coulombic efficiency of anode...

Cited by 9 publications

References 44 publications

Significantly Improving the Initial Coulombic Efficiency of TiO2 Anode for Sodium-Ion Batteries

Significantly Improving the Initial Coulombic Efficiency of TiO2 Anode for Sodium-Ion Batteries

Unleashing the Potential of Sodium‐Ion Batteries: Current State and Future Directions for Sustainable Energy Storage

Electrochemically prelithiated carbon anodes with regulated Na-ion intercalation behaviours for advanced sodium-ioni energy storage devices

Contact Info

Product

Resources

About

Significantly Improving the Initial Coulombic Efficiency of TiO₂ Anode for Sodium-Ion Batteries

Significantly Improving the Initial Coulombic Efficiency of TiO₂ Anode for Sodium-Ion Batteries