Hydroxyl-Rich Hyperbranched Polyglycerol Additive for Low-Temperature Aqueous Zinc Batteries: Sustained and Efficient Dehydration and High-Conductivity.

ABSTRACT: The development of aqueous Zn-ion batteries operable at subzero temperatures is impeded by a number of design problems, including slow ion transport and interfacial instability. Drawing inspiration from marine fish adapted to polar waters, a bioinspired supramolecular additive hyperbranched polyglycerol, CDhPG is developed, that integrates dual biomimetic functions, thus overcoming the design limitations of Zn-ion batteries. Specifically, CDhPG mimics the ice-binding behavior of antifreeze proteins and the dehydration microenvironment of potassium ion channels, enabling simultaneous inhibition of ice growth and acceleration of Zn²⁺ desolvation. The hydroxyl-rich architecture facilitates strong hydrogen bonding with ice surfaces, while its internal cavities promote selective Zn

SUBMITTER: Li X 

PROVIDER: S-EPMC12866746 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature