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High Ionic Conductive, Mechanical Robust Solid Polymer Composite Electrolyte Achieved by Succinonitrile and Polytetrafluoroethylene Porous Fibrous Membrane for Lithium Metal Batteries.

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Title: High Ionic Conductive, Mechanical Robust Solid Polymer Composite Electrolyte Achieved by Succinonitrile and Polytetrafluoroethylene Porous Fibrous Membrane for Lithium Metal Batteries.
Authors: Chen, Shuai-Jun1 (AUTHOR), Huang, Biao1 (AUTHOR), Song, Li-Xin1 (AUTHOR) lxsong12@zstu.edu.cn, Wang, Zha1 (AUTHOR), Du, Ping-Fan1 (AUTHOR), Xiong, Jie1 (AUTHOR), Zhu, Hai-Lin1 (AUTHOR), Guo, Yu-Hai1 (AUTHOR) gyh@zstu.edu.cn
Source: Chinese Journal of Polymer Science (Springer Science & Business Media B.V.). Feb2026, Vol. 44 Issue 2, p352-360. 9p.
Subjects: Ionic conductivity, Polytef, Polymers, Electrolytes, Lithium cells, Plasticizers, Tensile strength
Abstract: Solid polymer electrolytes (SPEs) are considered promising candidates for all-solid-state lithium metal batteries because of their easy preparation and good compatibility with lithium metal. However, their applications are restricted by their low ionic conductivity and poor mechanical properties. In this study, a composite solid polymer electrolyte composed of poly(ethylene oxide) (PEO), poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP), plasticizer succinonitrile (SN), and polytetrafluoroethylene (PTFE) fibrous porous membranes was prepared. The PTFE fibrous membrane significantly enhanced the mechanical strength of the electrolyte as a supporting framework. SN reduced the crystalline regions of PEO and facilitated rapid lithium-ion transport. PVDF-HFP promoted lithium salt dissolution and improved the electrochemical stability of the electrolyte. Accordingly, the optimized PTFE/PEO/PVDF-HFP/SN polymer electrolyte exhibited a tensile strength of 3.31 MPa at 352% elongation and demonstrated an ionic conductivity of 7.6×10−4 S·cm−1 at 60 °C. Lithium symmetric cells maintained stable cycling for over 2500 h at 0.15 mA·cm−2, and Li//LiFePO4 full cells showed a high capacity retention of 91.6% after 300 cycles at 0.5 C, with coulombic efficiency consistently exceeding 99.9% throughout cycling. [ABSTRACT FROM AUTHOR]
Copyright of Chinese Journal of Polymer Science (Springer Science & Business Media B.V.) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 191810085
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  Data: Solid polymer electrolytes (SPEs) are considered promising candidates for all-solid-state lithium metal batteries because of their easy preparation and good compatibility with lithium metal. However, their applications are restricted by their low ionic conductivity and poor mechanical properties. In this study, a composite solid polymer electrolyte composed of poly(ethylene oxide) (PEO), poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP), plasticizer succinonitrile (SN), and polytetrafluoroethylene (PTFE) fibrous porous membranes was prepared. The PTFE fibrous membrane significantly enhanced the mechanical strength of the electrolyte as a supporting framework. SN reduced the crystalline regions of PEO and facilitated rapid lithium-ion transport. PVDF-HFP promoted lithium salt dissolution and improved the electrochemical stability of the electrolyte. Accordingly, the optimized PTFE/PEO/PVDF-HFP/SN polymer electrolyte exhibited a tensile strength of 3.31 MPa at 352% elongation and demonstrated an ionic conductivity of 7.6×10−4 S·cm−1 at 60 °C. Lithium symmetric cells maintained stable cycling for over 2500 h at 0.15 mA·cm−2, and Li//LiFePO4 full cells showed a high capacity retention of 91.6% after 300 cycles at 0.5 C, with coulombic efficiency consistently exceeding 99.9% throughout cycling. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Chinese Journal of Polymer Science (Springer Science & Business Media B.V.) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10118-025-3515-3
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      – SubjectFull: Polymers
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      – SubjectFull: Electrolytes
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      – SubjectFull: Lithium cells
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      – SubjectFull: Plasticizers
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      – SubjectFull: Tensile strength
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      – TitleFull: High Ionic Conductive, Mechanical Robust Solid Polymer Composite Electrolyte Achieved by Succinonitrile and Polytetrafluoroethylene Porous Fibrous Membrane for Lithium Metal Batteries.
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              Text: Feb2026
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              Y: 2026
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