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Binder-free CuCo2O4@Polypyrrole core-shell nanoarrays with redox-additive electrolyte for high-performance asymmetric supercapacitor devices
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DOI：10.1016/j.jpowsour.2026.241082.png)
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Abstract
En 中文
• CuCo2O4@PPy core–shell nanoarrays coupled with a K3Fe(CN)6 redox electrolyte. • Areal capacitance rises from 1005 to 3607 mF cm−2, a ∼3.5-fold enhancement. • Redox mediator shuttles electrons beyond surface-limited pseudocapacitance. • Reduced charge-transfer resistance; 97.4% retention after 5000 cycles. • Solid-state ASC delivers 29 Wh kg−1 at 800 W kg−1 with PVA–KOH–K3Fe(CN)6 gel.
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