Na3V2(PO4)3 Cathode for Room-Temperature Solid-State Sodium-Ion Batteries Advanced In Situ Synchrotron X-ray Studies to Understand Intermediate Phase Evolution

Na3V2(PO4)3 Cathode for Room-Temperature Solid-State Sodium-Ion Batteries : Advanced In Situ Synchrotron X-ray Studies to Understand Intermediate Phase Evolution

© 2024 The Authors. Published by American Chemical Society.

Bibliographische Detailangaben
Veröffentlicht in:Chemistry of materials : a publication of the American Chemical Society. - 1998. - 36(2024), 5 vom: 12. März, Seite 2314-2324
1. Verfasser: Pandit, Bidhan (VerfasserIn)
Weitere Verfasser: Johansen, Morten, Susana Martínez-Cisneros, Cynthia, Naranjo-Balseca, Johanna M, Levenfeld, Belen, Ravnsbæk, Dorthe Bomholdt, Varez, Alejandro
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Chemistry of materials : a publication of the American Chemical Society
Schlagworte:Journal Article
Beschreibung
Zusammenfassung:© 2024 The Authors. Published by American Chemical Society.
Sodium-ion batteries (NIBs) can use elements that are abundantly present in Earth's crust and are technologically feasible for replacing lithium-ion batteries (LIBs). Hence, NIBs are essential components for sustainable energy storage applications. All-solid-state sodium batteries are among the most capable substitutes to LIBs because of their potential to have low price, great energy density, and consistent safety. Nevertheless, more advancements are needed to improve the electrochemical performance of the Na3V2(PO4)3 (NVP) cathode for NIBs, especially with regard to rate performance and operational lifespan. Herein, a core-shell NVP/C structure is accomplished by adopting a solid-state method. The initial reversible capacity of the NVP/C cathode is 106.6 mAh/g (current rate of C/10), which approaches the theoretical value (117.6 mAh/g). It also exhibits outstanding electrochemical characteristics with a reversible capacity of 85.3 mAh/g at 10C and a cyclic retention of roughly 94.2% after 1100 cycles. Using synchrotron-based operando X-ray diffraction, we present a complete examination of phase transitions during sodium extraction and intercalation in NVP/C. To improve safety and given its excellent ionic conductivity and broad electrochemical window, a Na superionic conductor (NASICON) solid electrolyte (Na3.16Zr1.84Y0.16Si2PO12) has been integrated to obtain an all-solid-state NVP/C||Na battery, which provides an exceptional reversible capacity (95 mAh/g at C/10) and long-term cycling stability (retention of 78.3% after 1100 cycles)
Beschreibung:Date Revised 19.03.2024
published: Electronic-eCollection
Citation Status PubMed-not-MEDLINE
ISSN:0897-4756
DOI:10.1021/acs.chemmater.3c02585