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- W4296311663 endingPage "167153" @default.
- W4296311663 startingPage "167153" @default.
- W4296311663 abstract "To meet the higher requirements for green energy, high-performance renewable energy technology based on earth‑abundant materials is essential. Aqueous zinc-ion hybrid supercapacitors (ZSC) have been regarded as an attractive candidate for sustainable electrochemical energy storage device combining the advantages of batteries and supercapacitors, but their unsatisfactory cycling stability and low energy density remain a problem to be solved. Herein, nitrogen-doped MnO2 (N-MnO2) nanowalls were synthesized by in situ deposition, which provides rich ion transport pathway and accelerates the extraction/insertion of zinc ions. As a result, N-MnO2 anode can be assembled to an aqueous zinc-ion hybrid capacitor with AC cathodes, presenting a high energy density of 712.5 μWh cm−2 at a power density of 1000 μW cm−2 (1 mA cm−2) and excellent cycle stability with a capacity retention rate of 92.9 % in 25,000 charge-discharge cycles. In addition, the flexible hybrid supercapacitor exhibits excellent mechanical flexibility, and the electrochemical performance remains stable under different bending angles. This work shows that ZSC device based on N-MnO2 nanowalls hold great potential for new energy storage devices." @default.
- W4296311663 created "2022-09-20" @default.
- W4296311663 creator A5018221573 @default.
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- W4296311663 date "2022-12-01" @default.
- W4296311663 modified "2023-10-07" @default.
- W4296311663 title "Flexible Zn-ion hybrid supercapacitor enabled by N-Doped MnO2 cathode with high energy density and ultra-long cycle life" @default.
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- W4296311663 doi "https://doi.org/10.1016/j.jallcom.2022.167153" @default.
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