68. Zincophilic Porous Carbon Interface with Dendrite-Free Zinc Deposition via Selective Ion Regulation for Aqueous Zinc Ion Batteries
- Journal
- Small
- Page
- e73286
- Date
- (2026.04), JCR: 7.49%, IF: 12.1
- Year
- 2026
- Link
- http://doi.org/10.1002/smll.73286 4500회 연결
The development of a protective layer that not only blocks parasitic reactions but also actively regulates Zn2+ transport and nucleation behavior is critical for the advancement of aqueous zinc ion batteries (AZIBs). In this study, we propose a novel interfacial engineering strategy based on a zincophilic porous carbon (ZPC) coating, which provides selective Zn2+ adsorption and directional Zn2+ flux regulation. The ZPC layer composed of poly (acrylic acid) (PAA)-grafted carboxymethyl cellulose (CMC) (CLP) and activated carbon (AC) synergistically integrates zincophilic functional groups and a porous structure. This design enables rapid Zn2+ desolvation and effectively suppresses dendrite formation. The selective Zn2+ affinity of the ZPC layer minimize hydrogen evolution reaction (HER) and corrosion, while promoting preferential Zn deposition along the (002) crystallographic plane. As a result, ZPC@Zn exhibits an extended lifespan exceeding 3,600 hours at 4 mA cm-2 and stable Zn plating/stripping at a high depth of discharge (43%). Full cells paired with an iodine cathode demonstrates excellent rate capability and outstanding cycle stability, maintaining approximately 90% capacity retention over 5,000 cycles at 10 C. This work establishes a new paradigm in interfacial layer design and paves the way for dendrite-free, high-performance AZIBs.

