Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 15, 2025

Abstract The unstable zinc anode hinders the practical application of aqueous zinc‐ion batteries, primarily due to two interconnected issues: dendrite formation induced by kinetic‐controlled plating model and side reactions resulting from thermodynamic‐driven hydrogen evolution. Herein, a multifunctional interface, composed Cr‐doped ZnO (CZO) nanoparticles integrated with polyvinylidene difluoride (PVDF), stabilizes (CZO@Zn). Introducing ferroelectricity into CZO through Cr doping ensures uniform electric field distribution, promoting thermodynamic‐favored epitaxial growth. zincophilicity increases nucleation sites, while its hydrophobicity effectively suppresses reactions. By optimizing both thermodynamics kinetics, “concrete‐slab”‐like deposition is achieved even under high areal capacity rate conditions. layer enables reversibility (99.97%), long‐term stability (2400 h), utilization (80%). CZO‐modified separator exhibits an exceptionally lifespan 2800 h. This approach can be extended design V‐doped interface. ferroelectric–zincophilic interlayer offers distinct advantages over traditional ferroelectric materials pure ZnO, making it promising alternative for stabilizing anode.

Язык: Английский