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- W2909307097 abstract "A green physical route for producing novel multifunctional polyvinyl alcohol/kappa-carrageenan alkaline gel polymer electrolyte is developed, which is based on double-network physical cross-linked hydrogel. The alkaline gel polymer electrolyte has excellent tensile stress (2.22 MPa), stretchability (12.43 mm/mm) and ionic conductivity (0.21 S/cm). In this study, KOH is served as not only ionic donator but also cross-linking agent. A supercapacitor is assembled from polyvinyl alcohol/kappa-carrageenan alkaline gel polymer electrolyte and activated carbon electrodes, which exhibits ideal electrochemistry behavior. The electrode specific capacitance is 470 F/g at 0.5 A/g, and retains above 95% after 2000 charge/discharge cycles. Additionally, the electrochemical performance of supercapacitor under different tensile deformations (≤200%), bending angles (0–230°) and temperatures (≥-40 °C) displays a slightly reduction, indicating that the supercapacitor possesses good flexibility and low temperature resistance. These findings are desirable for applications in supercapacitor devices of flexibility or low working temperature." @default.
- W2909307097 created "2019-01-25" @default.
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- W2909307097 date "2019-02-01" @default.
- W2909307097 modified "2023-10-14" @default.
- W2909307097 title "Flexible and low temperature resistant double network alkaline gel polymer electrolyte with dual-role KOH for supercapacitor" @default.
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- W2909307097 doi "https://doi.org/10.1016/j.jpowsour.2019.01.006" @default.
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