Locking-chain electrolyte additive enabling moisture-tolerant electrolytes for sodium-ion batteries

Wenbin Li, Yijie Duan, Shaohua Ge, Wenbo Wu, Keming Song, Jiyu Zhang, Guochuan Tang, Lingfei Zhao, Pengfei Yan, Enhui Wang, Zhiguo Zhang (), Yuliang Cao, Yong Yang and Weihua Chen ()
Additional contact information
Wenbin Li: Zhengzhou University
Yijie Duan: Beijing University of Chemical Technology
Shaohua Ge: Zhengzhou University
Wenbo Wu: Zhengzhou University
Keming Song: Zhengzhou University
Jiyu Zhang: Zhengzhou University
Guochuan Tang: Zhengzhou University
Lingfei Zhao: Innovation Campus
Pengfei Yan: Beijing University of Technology
Enhui Wang: Zhengzhou University
Zhiguo Zhang: Beijing University of Chemical Technology
Yuliang Cao: Wuhan University
Yong Yang: Xiamen University
Weihua Chen: Zhengzhou University

Nature Communications, 2025, vol. 16, issue 1, 1-15

Abstract: Abstract The unstable electrolyte–electrode interface and the trace H2O in commercial organic electrolytes critically limit the cycling life of batteries. Herein, a locking-chain sodium 4,4′-(1,4-phenylenebis(oxy))-bis(butane-1-sulfonate)−15-crown-5 (15PBS) is designed for phase-to-interface electrolyte optimization. In the electrolyte phase, the strong hydrophilic sulfonate groups and 15-crown-5 in 15PBS effectively transform H2O from a reactive aggregated state (strong H-bond) into an inactive state (weak H-bond) through adsorption, effectively suppressing H2O-induced electrolyte decomposition. At the electrolyte–electrode interface, 15PBS preferentially adsorbed onto hard carbon, displacing solvents within the electric double layer to form insoluble phenyl-rich sulfide solid electrolyte interphase with fast Na+ transport. Simultaneously, 15PBS facilitates the formation of stable cathode-electrolyte interphase on Na0.72Ni0.32Mn0.68O2, improving Na+ migration kinetics and cycling reversibility. The hard carbon | |Na0.72Ni0.32Mn0.68O2 full cell with high specific energy of 191.7 Wh kg−1 (based on the total active-material mass) delivers long lifespan of 2000 cycles at 500 mA g−1. Moreover, 15PBS is compatible with ester-based electrolytes in lithium-ion batteries, enabling stable cycling of commercial graphite and Si/C negative electrodes. This work provides an effective approach for durable electrolytes towards safe and high-performance batteries.

Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-025-61603-6 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-61603-6

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-025-61603-6

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().