Scholarlink

<p>A high-performance polymer composite electrolyte with enhanced electrochemical performance was developed by incorporating tungsten oxide (WO₃) nanoparticles into a poly (propylene carbonate) (PPC) and poly (vinylidene fluoride) (PVdF) matrix, with lithium bis(oxalato)borate (Li BOB) as the lithium salt. This is the first demonstration of using WO₃ as a functional nanofiller in a PPC–PVdF system, aimed at overcoming the limitations of conventional polymer electrolytes. The polymer composite electrolyte was synthesized via a solution casting method, enabling uniform WO₃ dispersion. Optimization identified 7.5 wt% WO₃ as the ideal weight%, yielding a room-temperature ionic conductivity of 4.99 × 10⁻³ S cm⁻¹ and an electrochemical stability window of 4.3&#xa0;V. Thermogravimetric analysis confirmed excellent thermal stability up to 215&#xa0;°C. XRD and FTIR results confirmed strong interfacial interactions between WO₃ and the host polymer, while SEM and AFM analyses revealed uniform nanoparticle dispersion and increased surface roughness facilitating improved electrolyte uptake and ion transport. These synergistic effects of the WO₃ nanofiller not only enhanced ion conduction and thermal robustness but also ensured mechanical integrity, making the PPC–PVdF–WO₃ composite a promising candidate for high-performance energy storage devices.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Enhancement of PPC-PVdF blend electrolyte properties via incorporation of WO3 nanoparticles for advanced energy storage applications

  • 期刊论文

  • 发表日期：

    2025年6月23日

查看全文
  • Sashmitha k,
  • Usha Rani M

摘要

A high-performance polymer composite electrolyte with enhanced electrochemical performance was developed by incorporating tungsten oxide (WO₃) nanoparticles into a poly (propylene carbonate) (PPC) and poly (vinylidene fluoride) (PVdF) matrix, with lithium bis(oxalato)borate (Li BOB) as the lithium salt. This is the first demonstration of using WO₃ as a functional nanofiller in a PPC–PVdF system, aimed at overcoming the limitations of conventional polymer electrolytes. The polymer composite electrolyte was synthesized via a solution casting method, enabling uniform WO₃ dispersion. Optimization identified 7.5 wt% WO₃ as the ideal weight%, yielding a room-temperature ionic conductivity of 4.99 × 10⁻³ S cm⁻¹ and an electrochemical stability window of 4.3 V. Thermogravimetric analysis confirmed excellent thermal stability up to 215 °C. XRD and FTIR results confirmed strong interfacial interactions between WO₃ and the host polymer, while SEM and AFM analyses revealed uniform nanoparticle dispersion and increased surface roughness facilitating improved electrolyte uptake and ion transport. These synergistic effects of the WO₃ nanofiller not only enhanced ion conduction and thermal robustness but also ensured mechanical integrity, making the PPC–PVdF–WO₃ composite a promising candidate for high-performance energy storage devices.