A Sustainable and Scalable Approach for In-Situ Induction of Gradient Nucleation Sites in Biomass-Derived Interface Layers for Ultra-Stable Aqueous Zinc Metal Batteries

IF 16.1 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Angewandte Chemie International Edition Pub Date : 2025-03-25 DOI:10.1002/anie.202504613

Xin Liu, Jia-Wei Qian, Jing-Wei Chen, Yun-Kai Xu, Wei-Yi Wang, Wei-Xu Dong, Wei Hu, Guo-Rui Cai, Jun Lu, Shu-Hong Yu, Li-Feng Chen

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引用次数: 0

Abstract

Aqueous zinc metal batteries are promising candidates for large-grid energy storage due to their safety, cost-effectiveness, and durability. However, challenges like dendrite growth, corrosion, and the hydrogen evolution reaction (HER) on the zinc anode hinder their performance. Herein, we propose a sustainable and scalable approach to form a copper gluconate@carboxymethyl chitosan@kaolin (CuCK) interface layer, inducing gradient nucleation sites via in-situ galvanic and galvanostatic processes. The biomass-based CuCK coating features a gradient CuxZny alloy structure that homogenizes interfacial electric field distribution and enhances electrochemical stability. Furthermore, the incorporated Cu2+-loaded kaolin and carboxymethyl chitosan regulate Zn2+ flux, accelerate Zn2+ desolvation, and suppress HER. The resulting Zn@CuCK anode achieves a high cumulative capacity of 5500 mAh cm−2 in symmetrical cells, exhibits excellent durability in Zn@CuCK//NaV3O8·1.5H2O full cells across a wide temperature range (−30 to 60 °C), and endows the assembly of pouch cells with high energy density.

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在生物质界面层中原位诱导梯度成核点的可持续和可扩展方法，用于制造超稳定水性锌金属电池

锌金属水电池因其安全性、成本效益和耐用性而成为大电网储能的理想选择。然而，锌阳极上的枝晶生长、腐蚀和氢进化反应（HER）等挑战阻碍了它们的性能。在此，我们提出了一种可持续、可扩展的方法来形成葡萄糖酸铜@羧甲基壳聚糖@高岭土（CuCK）界面层，通过原位电化学和电静电过程诱导梯度成核点。生物质基 CuCK 涂层具有梯度 CuxZny 合金结构，可均匀界面电场分布并增强电化学稳定性。此外，掺入 Cu2+ 的高岭土和羧甲基壳聚糖可调节 Zn2+ 通量，加速 Zn2+ 脱溶，抑制 HER。由此产生的 Zn@CuCK 阳极在对称电池中实现了 5500 mAh cm-2 的高累积容量，在 Zn@CuCK//NaV3O8-1.5H2O 完整电池的宽温度范围（-30 至 60 °C）内表现出卓越的耐久性，并使组装的袋式电池具有高能量密度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Angewandte Chemie International Edition 化学-化学综合

CiteScore

26.60

自引率

6.60%

发文量

3549

审稿时长

1.5 months

期刊介绍： Angewandte Chemie, a journal of the German Chemical Society (GDCh), maintains a leading position among scholarly journals in general chemistry with an impressive Impact Factor of 16.6 (2022 Journal Citation Reports, Clarivate, 2023). Published weekly in a reader-friendly format, it features new articles almost every day. Established in 1887, Angewandte Chemie is a prominent chemistry journal, offering a dynamic blend of Review-type articles, Highlights, Communications, and Research Articles on a weekly basis, making it unique in the field.