As demand for safe, low-cost and grid-scale storage keeps climbing, aqueous Zn–I 2 batteries attract intense attention yet are dogged by polyiodide shuttling and sluggish iodine conversion. Now, researchers from Beijing University of Chemical Technology and Beijing Institute of Technology, led by Prof. Yi Zhao, present a catalytic cathode that finally tames these twin problems. Their three-dimensional carboxyl-carbon-nanotube-wrapped polyaniline (C-PANI) realises a direct I⁰/I⁻ redox, delivering 420 mAh g -1 and an ultra-long lifespan over 40 000 cycles.
Why C-PANI Matters
Innovative Design & Features
Applications & Outlook
This work offers a scalable organocatalyst pathway to long-life, high-rate Zn–I 2 batteries and provides new insight into proton-involved energy chemistry. Stay tuned for more advances from Prof. Yi Zhao’s group!
Nano-Micro Letters
Experimental study
“Proton‑Iodine” Regulation of Protonated Polyaniline Catalyst for High‑Performance Electrolytic Zn‑I2 Batteries
1-Nov-2025