Anion-Cation Synergy Enables Reversible Seven-Electron Redox Chemistry for Energetic Aqueous Zinc-Iodine Batteries

IF 16.8 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy Pub Date : 2025-03-18 DOI:10.1016/j.nanoen.2025.110884

Xixian Li, Wenyu Xu, Jianze Feng, Ziqiang Liu, Na Jiang, Lihang Ye, Yuliang Gao, Yi Ma, Zui Tao, Yanting Duan, Xinliang Li, Qi Yang, Jieshan Qiu

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引用次数: 0

Abstract

Aqueous zinc-iodine batteries have drawn intensive attention from battery community due to the high theoretical capacity and low cost. However, the traditional two-electron-transfer and four-electron-transfer mechanisms suffer from low capacity and inferior stability due to the sluggish kinetics and low I^– utilization. Herein, we design a seven-electron-transfer Zn||I₂ battery via the anion-cation synergistic electrode reaction in layered BiI₃. The three-electron-transfer of Bi⁰/Bi³⁺, together with the four-electron-transfer of I^–/I⁺, endows Zn||BiI₃ battery with high capacity (~370 mAh g^–1 at 1 A g^–1) and high energy density. The chemical confinement of I^– by Bi³⁺ and the effective conversion of I^– in BiI₃ eradicate side reactions and enable I^– with high utilization rate. Zn||BiI₃ battery delivers a good cycling stability (10,000 cycles) and a high coulomb efficiency. This work presents an anion-cation synergy method for stabilizing Zn||I₂ batteries and other conversion-type batteries such as Zn||Br₂, Li||I₂, and Li||Br₂.

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来源期刊

Nano Energy CHEMISTRY, PHYSICAL-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

30.30

自引率

7.40%

发文量

1207

审稿时长

23 days

期刊介绍： Nano Energy is a multidisciplinary, rapid-publication forum of original peer-reviewed contributions on the science and engineering of nanomaterials and nanodevices used in all forms of energy harvesting, conversion, storage, utilization and policy. Through its mixture of articles, reviews, communications, research news, and information on key developments, Nano Energy provides a comprehensive coverage of this exciting and dynamic field which joins nanoscience and nanotechnology with energy science. The journal is relevant to all those who are interested in nanomaterials solutions to the energy problem. Nano Energy publishes original experimental and theoretical research on all aspects of energy-related research which utilizes nanomaterials and nanotechnology. Manuscripts of four types are considered: review articles which inform readers of the latest research and advances in energy science; rapid communications which feature exciting research breakthroughs in the field; full-length articles which report comprehensive research developments; and news and opinions which comment on topical issues or express views on the developments in related fields.