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<p>The PVA/S/PPy organogel has been prepared from Polyvinyl alcohol (PVA), sorbitol (S) and polypyrrole (PPy) as raw material. This organogel exhibits excellent tensile properties, with an elongation rate of up to 716% and a maximum tensile strength of 1682&#xa0;kPa, allowing it to easily lift a 1700&#xa0;g reaction kettle. It also shows outstanding adhesion; it can adhere to various hydrophobic and hydrophilic substrates as well as skin surfaces and can be recognised by a smartphone screen as a stylus. A flexible supercapacitor prepared using PVA/S/PPy demonstrates high ionic conductivity (22.7 mS cm<sup>−1</sup>), excellent specific capacitance (107 F g<sup>−1</sup>), and outstanding cycling stability, reaching a capacitance retention rate of 84.1% after 1000 cycles. Moreover, it maintains a superior specific capacitance retention rate even at − 20&#xa0;°C.</p>

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Multi-functional low-temperature-resistant dual-network organogels for flexible supercapacitors

  • 期刊论文

  • 发表日期：

    2025年3月18日

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  • Jiuzhi Wei,
  • Yuehua Liang,
  • Juan Zhang,
  • Yanyan Li,
  • Caiyuan Guo,
  • Tingting Zhang,
  • Haizhen Yuan,
  • Enke Feng,
  • Xinxian Ma,
  • Xinning Han

摘要

The PVA/S/PPy organogel has been prepared from Polyvinyl alcohol (PVA), sorbitol (S) and polypyrrole (PPy) as raw material. This organogel exhibits excellent tensile properties, with an elongation rate of up to 716% and a maximum tensile strength of 1682 kPa, allowing it to easily lift a 1700 g reaction kettle. It also shows outstanding adhesion; it can adhere to various hydrophobic and hydrophilic substrates as well as skin surfaces and can be recognised by a smartphone screen as a stylus. A flexible supercapacitor prepared using PVA/S/PPy demonstrates high ionic conductivity (22.7 mS cm−1), excellent specific capacitance (107 F g−1), and outstanding cycling stability, reaching a capacitance retention rate of 84.1% after 1000 cycles. Moreover, it maintains a superior specific capacitance retention rate even at − 20 °C.