Molecule-Level Multiscale Design of Nonflammable Gel Polymer Electrolyte to Build Stable SEI/CEI for Lithium Metal Battery

Molecule-Level Multiscale Design of Nonflammable Gel Polymer Electrolyte to Build Stable SEI/CEI for Lithium Metal Battery

Highlights Nonflammable gel polymer electrolyte (SGPE) is developed by in situ polymerizing trifluoroethyl methacrylate (TFMA) monomers with flame-retardant triethyl phosphate (TEP) solvents and LiTFSI–LiDFOB dual lithium salts. Molecular polarity interaction between TEP and PTFMA mitigates interfac...

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Main Authors: Qiqi Sun, Zelong Gong, Tao Zhang, Jiafeng Li, Xianli Zhu, Ruixiao Zhu, Lingxu Wang, Leyuan Ma, Xuehui Li, Miaofa Yuan, Zhiwei Zhang, Luyuan Zhang, Zhao Qian, Longwei Yin, Rajeev Ahuja, Chengxiang Wang
Format: Article
Language:English
Published: SpringerOpen 2024-09-01
Series:Nano-Micro Letters
Subjects:
Anchoring effect
Nonflammable gel electrolyte
In situ cross-linked
Electrode–electrolyte interface
Li metal battery
Online Access:https://doi.org/10.1007/s40820-024-01508-z
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Summary:Highlights Nonflammable gel polymer electrolyte (SGPE) is developed by in situ polymerizing trifluoroethyl methacrylate (TFMA) monomers with flame-retardant triethyl phosphate (TEP) solvents and LiTFSI–LiDFOB dual lithium salts. Molecular polarity interaction between TEP and PTFMA mitigates interfacial reactions and changes the solvation of Li+. SGPE forms stable inorganic-rich solid electrolyte interface/cathode electrolyte interface layer, exhibiting well compatibility with Li anode and LiCoO2-type high-voltage cathode.
ISSN:2311-6706
2150-5551

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