Constructing Dissolution–Resistant Interphases for Long‐Life Sodium‐Ion Batteries at Elevated Temperatures DOI Creative Commons
Wen‐Ting Deng, Xiaofan Du, Gaojie Xu

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: May 8, 2025

Abstract Rechargeable sodium‐ion batteries (SIBs) utilizing NaPF 6 ‐carbonate electrolytes consistently exhibit unsatisfactory cycle life at elevated temperatures, posing a significant challenge for their large‐scale commercialization. This is mainly caused by the instability of interphase layers especially high solubility components (especially NaF) in carbonate solvents. In this study, novel additive sodium difluorobis(oxalato) phosphate (NaDFBOP) synthesized and introduced into to enhance commercial SIBs composed NaNi 1/3 Fe Mn O 2 (NFM) cathode hard carbon (HC) anode, particularly 50 °C. Specifically, NaDFBOP enables NFM/HC retain 85.45% initial capacity after 1000 cycles 30 °C 90.76% 500 Theoretical calculations reveal that DFBOP⁻ anions enter first solvation shell Na + , exhibits strong propensity decomposition. Characterizations suggest favors formation dissolution–resistant robust enriched dissolution‐resistant oxalate‐containing species inorganic NaF, which have mutual binding energy. work underscores critical importance designing functional additives constructing interphases temperature SIBs.

Language: Английский

Alleviating Self-discharge in Sodium-Ion Batteries via Functional Dual-Salt Electrolytes DOI
Jun Zhang,

Nurbiye Sawut,

Haiman Fan

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: 136, P. 110744 - 110744

Published: Feb. 2, 2025

Language: Английский

Citations

0
Mechanisms and Mitigation Strategies of Gas Generation in Sodium-Ion Batteries DOI Creative Commons
Xingyan Li, Xi Chen, Meng Li

et al.

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: March 10, 2025

Abstract The transition to renewable energy sources has elevated the importance of SIBs (SIBs) as cost-effective alternatives lithium-ion batteries (LIBs) for large-scale storage. This review examines mechanisms gas generation in SIBs, identifying from cathode materials, anode and electrolytes, which pose safety risks like swelling, leakage, explosions. Gases such CO 2 , H O primarily arise instability side reactions between electrode electrolyte, electrolyte decomposition under high temperatures or voltages. Enhanced mitigation strategies, encompassing design, buffer layer construction, material optimization, are deliberated upon. Accordingly, subsequent research endeavors should prioritize long-term high-precision detection bolster performance thereby fortifying their commercial viability furnishing dependable solutions storage electric vehicles.

Language: Английский

Citations

0
Mitigating Lattice Distortion of Na4Fe3(PO4)2P2O7 Cathodes at High Voltage for High-Capacity Na-Ion Batteries DOI
Linlin Zhou, Haifeng Yu,

Chenwei Li

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

Language: Английский

Citations

0
Constructing Dissolution–Resistant Interphases for Long‐Life Sodium‐Ion Batteries at Elevated Temperatures DOI Creative Commons
Wen‐Ting Deng, Xiaofan Du, Gaojie Xu

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: May 8, 2025

Abstract Rechargeable sodium‐ion batteries (SIBs) utilizing NaPF 6 ‐carbonate electrolytes consistently exhibit unsatisfactory cycle life at elevated temperatures, posing a significant challenge for their large‐scale commercialization. This is mainly caused by the instability of interphase layers especially high solubility components (especially NaF) in carbonate solvents. In this study, novel additive sodium difluorobis(oxalato) phosphate (NaDFBOP) synthesized and introduced into to enhance commercial SIBs composed NaNi 1/3 Fe Mn O 2 (NFM) cathode hard carbon (HC) anode, particularly 50 °C. Specifically, NaDFBOP enables NFM/HC retain 85.45% initial capacity after 1000 cycles 30 °C 90.76% 500 Theoretical calculations reveal that DFBOP⁻ anions enter first solvation shell Na + , exhibits strong propensity decomposition. Characterizations suggest favors formation dissolution–resistant robust enriched dissolution‐resistant oxalate‐containing species inorganic NaF, which have mutual binding energy. work underscores critical importance designing functional additives constructing interphases temperature SIBs.

Language: Английский

Citations

0