DataVXAdvanced Sustainable SystemsPaper
journal article·2025-12

Dual‐Function High‐Entropy Alloy Nanocatalysts Enable Long‐Life Aqueous Zinc–Iodine Batteries

Tianyu Yin, Maoxin Chen, Zhijie Yan, Feifei Wang, Zengyu Luo, Sundus Umer, Zihui Chen, Ning Yue, Wei Lv, Chunpeng Yang

Advanced Sustainable Systems· Volume 9· Issue 12
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Source abstract

Abstract

Abstract Aqueous zinc–iodine (Zn–I 2 ) batteries are considered a promising sustainable energy storage system due to their high energy density, cost‐effectiveness, and environmental friendliness. However, polyiodide shuttling leads to severe capacity loss and poor cycle stability. Herein, FeCoNiCrMn high‐entropy alloy (HEA) nanocatalysts are introduced, leveraging their inherent multi‐elemental synergy and abundant active sites for both exceptional polyiodide adsorption and accelerated redox kinetics. As a result, the Zn–I 2 batteries with HEA nanocatalysts deliver a remarkable specific capacity of 220.23 mAh g −1 at 1 A g −1 (≈100% iodine utilization) and exhibit minimal capacity decay (0.0014% per cycle) over 25 000 cycles at 5 A g −1 . Furthermore, Zn–I 2 pouch cells (5×5 cm 2 , 7.5 mg cm −2 iodine loading) with HEA catalysts enable high capacity retention (17.0 mAh after 2000 cycles at 4 mA cm −2 ). This work demonstrates the high‐entropy catalysis as a powerful strategy for designing high‐performance, durable Zn–I 2 batteries.
Source: crossref · Quality: baseline

Research context

Energy storageMetals & alloysNanomaterialsCatalysis & surfaces

OpenAlex topics: Advanced battery technologies research · Advancements in Battery Materials · Electrocatalysts for Energy Conversion

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Shenzhen Key Laboratory for Graphene‐based Materials Engineering Laboratory for Functionalized Carbon Materials Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen 518055 China

Nanoyang Group Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage School of Chemical Engineering and Technology and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin University Tianjin 300350 China

Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China

Max Planck Institute for Microstructure Physics D‐06120 Halle (Saale) Germany

Funding

National Natural Science Foundation of China · Fundamental Research Funds for the Central Universities

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