A Multifunctional Binder for Current-Collector-Free Zn Powder Anodes.

ABSTRACT: Compared with commonly used Zn foil anodes, Zn powder (ZP) anodes offer superior versatility and processability. However, in aqueous electrolytes, dendrite growth and side reactions, such as corrosion and hydrogen evolution, become more severe in ZP anodes than those in Zn foil anodes because of the rough surfaces and high surface areas of ZP, leading to poor reversibility and limitations in high-loading mass cathodes. In this study, a diisocyanate-polytetrahydrofuran-dihydrazide polymer (DDP) binder is developed, inspired by protein structures. The strong Zn²⁺ adsorption capability of the binder effectively regulates Zn²⁺ flux, while its unique hydrogen-bond arrays facilitate the formation of a free-standing ZP anode and inhibit side reactions. The binder exhibits su

SUBMITTER: Wang Y 

PROVIDER: S-EPMC12631518 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature