Constructing Charge-Delocalized Polycationic Protective Layer by Chitosan for Zinc-Ion Batteries

IF 8.7 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Materials Letters Pub Date : 2025-09-08 DOI:10.1021/acsmaterialslett.5c00839

Binbin Ren, , , Yifan Pan, , , Yanchun Xie, , , Yucong Jiao*, , and , Peiyi Wu*,

{"title":"Constructing Charge-Delocalized Polycationic Protective Layer by Chitosan for Zinc-Ion Batteries","authors":"Binbin Ren, , , Yifan Pan, , , Yanchun Xie, , , Yucong Jiao*, , and , Peiyi Wu*, ","doi":"10.1021/acsmaterialslett.5c00839","DOIUrl":null,"url":null,"abstract":"Engineering a polymer-based protective layer on a Zn metal surface can alleviate the side reactions for high Zn reversibility, yet the chain entanglement of the polymer may prolong the pathway and hinder the ion transport for poor battery performance. Here, the Debus-Radziszewski reaction was employed to form an imidazolium cation (IM+) structure in chitosan for high-performance protective layers. The protective layer for Zn metal with chitosan connected by IM+ (ZCIM) owns low entanglement characteristics to facilitate the ion transport channel construction, thus significantly promoting rapid Zn2+ migration kinetics. Moreover, the IM+ renders charge delocalization, thereby improving the electric field distribution on the Zn surface to accelerate stable Zn2+ deposition kinetics. Consequently, the symmetrical Zn battery with ZCIM remains stable at a high depth of discharge of 93.2%, and the Zn/I2 battery with ZCIM demonstrates a high-capacity retention rate of over 89% at a low N/P ratio of 2.6.","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":"7 10","pages":"3394–3402"},"PeriodicalIF":8.7000,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Materials Letters","FirstCategoryId":"92","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsmaterialslett.5c00839","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Engineering a polymer-based protective layer on a Zn metal surface can alleviate the side reactions for high Zn reversibility, yet the chain entanglement of the polymer may prolong the pathway and hinder the ion transport for poor battery performance. Here, the Debus-Radziszewski reaction was employed to form an imidazolium cation (IM⁺) structure in chitosan for high-performance protective layers. The protective layer for Zn metal with chitosan connected by IM⁺ (ZCIM) owns low entanglement characteristics to facilitate the ion transport channel construction, thus significantly promoting rapid Zn²⁺ migration kinetics. Moreover, the IM⁺ renders charge delocalization, thereby improving the electric field distribution on the Zn surface to accelerate stable Zn²⁺ deposition kinetics. Consequently, the symmetrical Zn battery with ZCIM remains stable at a high depth of discharge of 93.2%, and the Zn/I₂ battery with ZCIM demonstrates a high-capacity retention rate of over 89% at a low N/P ratio of 2.6.

Abstract Image

查看原文本刊更多论文

壳聚糖构建锌离子电池电荷离域多阳离子保护层的研究

在锌金属表面设计基于聚合物的保护层可以缓解高锌可逆性的副反应，但聚合物的链缠结可能会延长途径并阻碍离子传输，从而导致电池性能不佳。本研究采用Debus-Radziszewski反应在壳聚糖中形成咪唑阳离子（IM+）结构，用于高性能保护层。通过IM+ (ZCIM)连接壳聚糖的金属锌保护层具有低纠缠特性，有利于离子传输通道的构建，从而显著促进Zn2+的快速迁移动力学。此外，IM+使电荷离域，从而改善Zn表面的电场分布，加速稳定的Zn2+沉积动力学。结果表明，在高放电深度为93.2%的情况下，对称锌电池保持稳定；在低N/P比为2.6的情况下，对称锌电池的容量保持率达到89%以上。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.