Newly developed γ-NaTiOPO4 by simple solid-state synthesis for anode material of Na-ion batteries in both nonaqueous and aqueous electrolytes

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dc.contributor.authorKim, Den_AU
dc.contributor.authorPark, Hen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorKim, Men_AU
dc.contributor.authorKang, Ben_AU
dc.date.accessioned2024-09-19T04:53:15Zen_AU
dc.date.available2024-09-19T04:53:15Zen_AU
dc.date.issued2022-09en_AU
dc.date.statistics2024-06-27en_AU
dc.descriptionThis work was supported by the National Research Foundation of Korea Grant funded by the Korean Government NRF-2019R1A2C2007933, NRF-2021R1A4A1032162 and NRF-2022R1C1C1011543. This study was supported by Brain Korea 21 FOUR project for Education and research center for future materials. The present research has been conducted by the Research Grant of Kwangwoon University in 2022.en_AU
dc.description.abstractSodium-ion batteries (SIBs) are a promising next-generation energy storage system in terms of cost due to the abundance of sodium. However, obtaining good anode materials for SIBs remains a challenge. NaTiOPO4 has been investigated as an anode not only for SIBs but also for aqueous SIBs. Despite the various NaTiOPO4 polymorphs, only the β-NaTiOPO4 phase has been investigated as an anode for SIBs due to the limited synthesis process. In this study, we successfully stabilized γ-NaTiOPO4 via our newly developed solid-state synthesis process. In addition, its electrochemical properties as an anode for SIBs were investigated in this study. The synthesized material demonstrates a high voltage of 1.7 and ∼1.5 V vs Na/Na+ with 120 mAh/g and good capacity retention of 64% for up to 500 cycles at 0.5C in a nonaqueous electrolyte. In an aqueous electrolyte, Na0·44MnO2//γ-NaTiOPO4 full cell achieves excellent stable capacity retention with a high Coulombic efficiency for 175 cycles. It shows high cycling stability with a three-dimensional framework despite the relatively high redox potential. Thus, it demonstrates that γ-NaTiOPO4 is a promising anode material for both nonaqueous and aqueous rechargeable SIBs. © 2022 Elsevier B.V. All rights reserved.en_AU
dc.identifier.articlenumber231692en_AU
dc.identifier.citationKim, D., Park, H., Avdeev, M., Kim, M., & Kang, B. (2022). Newly developed γ-NaTiOPO4 by simple solid-state synthesis for anode material of Na-ion batteries in both nonaqueous and aqueous electrolytes. Journal of Power Sources, 541, 231692. doi.org/10.1016/j.jpowsour.2022.231692en_AU
dc.identifier.issn0378-7753en_AU
dc.identifier.journaltitleJournal of Power Sourcesen_AU
dc.identifier.urihttps://doi.org/10.1016/j.jpowsour.2022.231692en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15685en_AU
dc.identifier.volume541en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectElectrolytesen_AU
dc.subjectSynthesisen_AU
dc.subjectAnodesen_AU
dc.subjectSodiumen_AU
dc.subjectTitaniumen_AU
dc.subjectAqueous solutionsen_AU
dc.subjectEnergy storage systemsen_AU
dc.titleNewly developed γ-NaTiOPO4 by simple solid-state synthesis for anode material of Na-ion batteries in both nonaqueous and aqueous electrolytesen_AU
dc.typeJournal Articleen_AU
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