NH4 +-Modulated Cathodic Interfacial Spatial Charge Redistribution for High-Performance Dual-Ion Capacitors
Highlights Hierarchical Zn2+/NH4 + solvation structure induces cathodic interfacial Helmholtz plane reconfiguration to enhance spatial charge density and capacity storage. Hydrated NH4 + ions afford high-kinetics and ultrastable C‧‧‧H charge storage due to a much lower desolvation energy barrier com...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-01-01
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| Series: | Nano-Micro Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s40820-025-01660-0 |
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| Summary: | Highlights Hierarchical Zn2+/NH4 + solvation structure induces cathodic interfacial Helmholtz plane reconfiguration to enhance spatial charge density and capacity storage. Hydrated NH4 + ions afford high-kinetics and ultrastable C‧‧‧H charge storage due to a much lower desolvation energy barrier compared with large-sized Zn(H2O)6 2+ (5.81 vs. 14.90 eV). Interfacial Zn2+/NH4 + co-storage endow the hybrid capacitor with high capacity (240 mAh g−1), large-current tolerance (50 A g−1) and ultralong lifespan (400,000 cycles). |
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| ISSN: | 2311-6706 2150-5551 |