A Synchronous Strategy to Zn-Iodine Battery by Polycationic Long-Chain Molecules

Highlights A long chain polycation (Pah⁺) is propos ed to simultaneously regulate Zn anode deposition , mitigate side reactions and stabilize iodine cathode chemistry. The iodophilic and low diffusivity nature of Pah enables effective polyiodide immobilization, suppressing the shuttle effect and ens...

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Bibliographic Details
Main Authors: Da-Qian Cai, Hengyue Xu, Tong Xue, Jin-Lin Yang, Hong Jin Fan
Format: Article
Language:English
Published: SpringerOpen 2025-07-01
Series:Nano-Micro Letters
Subjects:
Online Access:https://doi.org/10.1007/s40820-025-01854-6
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Summary:Highlights A long chain polycation (Pah⁺) is propos ed to simultaneously regulate Zn anode deposition , mitigate side reactions and stabilize iodine cathode chemistry. The iodophilic and low diffusivity nature of Pah enables effective polyiodide immobilization, suppressing the shuttle effect and ensuring a stable redox environment. The Zn iodine battery delivers high areal capacity (~4 mAh cm−2 at 1 C) and excellent durability, with 95% capacity retained over 1000 cycles.
ISSN:2311-6706
2150-5551