Sulfolane-Based Flame-Retardant Electrolyte for High-Voltage Sodium-Ion Batteries

IF 26.6 1区材料科学 Q1 Engineering Nano-Micro Letters Pub Date : 2024-10-18 DOI:10.1007/s40820-024-01546-7

Xuanlong He, Jie Peng, Qingyun Lin, Meng Li, Weibin Chen, Pei Liu, Tao Huang, Zhencheng Huang, Yuying Liu, Jiaojiao Deng, Shenghua Ye, Xuming Yang, Xiangzhong Ren, Xiaoping Ouyang, Jianhong Liu, Biwei Xiao, Jiangtao Hu, Qianling Zhang

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Abstract

Highlights

NaTFSI/SUL:OTE:FEC facilitates the formation of S, N-rich, dense and robust cathode–electrolyte interphase on NaNMF cathode, which improves the cycling stability under high voltage.
By utilizing NaTFSI/SUL:OTE:FEC, the Na||NaNMF batteries achieved an impressive retention of 81.15% after 400 cycles at 2 C with the cutoff voltage of 4.2 V.
The study offers a reference for the utilization of sulfolane-based electrolytes in sodium-ion batteries (SIBs), while the nonflammability of the NaTFSI/SUL:OTE:FEC enhances the safety of SIBs.

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用于高压钠离子电池的硫醇基阻燃电解液

亮点 NaTFSI/SUL:OTE:FEC有助于在NaNMF阴极上形成富含S、N、致密且坚固的阴极-电解质相，从而提高了高电压下的循环稳定性。该研究为在钠离子电池（SIB）中使用砜基电解质提供了参考，而 NaTFSI/SUL:OTE:FEC 的不可燃性则提高了钠离子电池的安全性。

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来源期刊

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

32.60

自引率

4.90%

发文量

981

审稿时长

1.1 months

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary, and open-access journal published under the SpringerOpen brand. Nano-Micro Letters focuses on the science, experiments, engineering, technologies, and applications of nano- or microscale structures and systems in various fields such as physics, chemistry, biology, material science, and pharmacy.It also explores the expanding interfaces between these fields. Nano-Micro Letters particularly emphasizes the bottom-up approach in the length scale from nano to micro. This approach is crucial for achieving industrial applications in nanotechnology, as it involves the assembly, modification, and control of nanostructures on a microscale.