Preparation and Performance of PVDF-HFP/PAN-Based Gel Polymer Electrolytes DOI Creative Commons
Xueli Yao,

Lingxiao Lan,

Qiankun Hun

et al.

Gels, Journal Year: 2025, Volume and Issue: 11(5), P. 317 - 317

Published: April 24, 2025

Solid-state electrolytes are widely expected to enhance the performance of lithium-ion batteries, providing higher energy density and improved safety. However, challenges still need be solved in their practical application due low ionic conductivity high interfacial resistance at room temperature. In this study, we successfully developed a high-performance gel polymer electrolyte (GPEs) by blending poly(vinylidene fluoride-co-hexafluoropropylene)(PVDF-HFP) polyacrylonitrile (PAN) through UV curing, cross-linking with ethoxylated trimethylolpropane triacrylate (ETPTA), incorporating Li6.4La3Zr1.4Ta0.6O12 (LLZTO). At temperature, GPEs was 2.8 × 10−4 S/cm, transference number 0.6. Moreover, during lithium plating/stripping tests, assembled Li/PPEL/Li symmetric cell exhibited stable cycling for up 600 h current 0.1 mA/cm2. Notably, enabled LiFePO4/GPEs/Li battery achieve excellent performance, delivering discharge capacities temperature (164.3 mAh g−1 C 88.8 1 C), capacity retention 89.4% after 200 cycles 0.5 C. Therefore, solid-state batteries using exhibit including adequate stability.

Language: Английский

Preparation and Performance of PVDF-HFP/PAN-Based Gel Polymer Electrolytes DOI Creative Commons
Xueli Yao,

Lingxiao Lan,

Qiankun Hun

et al.

Gels, Journal Year: 2025, Volume and Issue: 11(5), P. 317 - 317

Published: April 24, 2025

Solid-state electrolytes are widely expected to enhance the performance of lithium-ion batteries, providing higher energy density and improved safety. However, challenges still need be solved in their practical application due low ionic conductivity high interfacial resistance at room temperature. In this study, we successfully developed a high-performance gel polymer electrolyte (GPEs) by blending poly(vinylidene fluoride-co-hexafluoropropylene)(PVDF-HFP) polyacrylonitrile (PAN) through UV curing, cross-linking with ethoxylated trimethylolpropane triacrylate (ETPTA), incorporating Li6.4La3Zr1.4Ta0.6O12 (LLZTO). At temperature, GPEs was 2.8 × 10−4 S/cm, transference number 0.6. Moreover, during lithium plating/stripping tests, assembled Li/PPEL/Li symmetric cell exhibited stable cycling for up 600 h current 0.1 mA/cm2. Notably, enabled LiFePO4/GPEs/Li battery achieve excellent performance, delivering discharge capacities temperature (164.3 mAh g−1 C 88.8 1 C), capacity retention 89.4% after 200 cycles 0.5 C. Therefore, solid-state batteries using exhibit including adequate stability.

Language: Английский

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