Roll-to-roll fabrication of integrated cathodes enabled by asymmetric dual-atom catalysts for bipolar stacking ampere-hour-scale Zn-air batteries.

ABSTRACT: Zn-air batteries (ZABs) represent a highly promising electrochemical energy storage technology, yet their practical deployment remains constrained by several fundamental challenges, including sluggish oxygen reaction kinetics at the cathode, limited power output and capacity in conventional device architectures. Herein, we demonstrate an efficiently integrated strategy to systematically address these issues. First, a metal-semimetal dual-atom catalyst consisting of Fe-Se dual-atom sites (FeSe-NC) is synthesized, whose unique electronic structure and metal-semimetal synergistic effects significantly enhanced oxygen electrocatalytic activity, achieving a half-wave potential of 0.920 V and a turnover frequency of 0.77 e^- site^-1 s^-1. Furthermore, a scalable rol

SUBMITTER: Wei Y 

PROVIDER: S-EPMC12707393 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature