Nano-Micro Letters ( IF 31.6 ) 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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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.
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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.
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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.
中文翻译:
用于高压钠离子电池的环丁砜基阻燃电解质
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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界面,从而提高高压下的循环稳定性。 -
通过使用 NaTFSI/SUL:OTE:FEC,Na||NaNMF 电池在 2 C 下循环 400 次后,截止电压为 4.2 V,实现了令人印象深刻的 81.15% 的保持率。 -
该研究为钠离子电池 (SIB) 中环丁砜基电解质的使用提供了参考,而 NaTFSI/SUL:OTE:FEC 的不可燃性提高了 SIB 的安全性。