{"title":"壳聚糖构建锌离子电池电荷离域多阳离子保护层的研究","authors":"Binbin Ren, , , Yifan Pan, , , Yanchun Xie, , , Yucong Jiao*, , and , Peiyi Wu*, ","doi":"10.1021/acsmaterialslett.5c00839","DOIUrl":null,"url":null,"abstract":"<p >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<sup>+</sup>) structure in chitosan for high-performance protective layers. The protective layer for Zn metal with chitosan connected by IM<sup>+</sup> (ZCIM) owns low entanglement characteristics to facilitate the ion transport channel construction, thus significantly promoting rapid Zn<sup>2+</sup> migration kinetics. Moreover, the IM<sup>+</sup> renders charge delocalization, thereby improving the electric field distribution on the Zn surface to accelerate stable Zn<sup>2+</sup> deposition kinetics. Consequently, the symmetrical Zn battery with ZCIM remains stable at a high depth of discharge of 93.2%, and the Zn/I<sub>2</sub> battery with ZCIM demonstrates a high-capacity retention rate of over 89% at a low N/P ratio of 2.6.</p>","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":"{\"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\":\"<p >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<sup>+</sup>) structure in chitosan for high-performance protective layers. The protective layer for Zn metal with chitosan connected by IM<sup>+</sup> (ZCIM) owns low entanglement characteristics to facilitate the ion transport channel construction, thus significantly promoting rapid Zn<sup>2+</sup> migration kinetics. Moreover, the IM<sup>+</sup> renders charge delocalization, thereby improving the electric field distribution on the Zn surface to accelerate stable Zn<sup>2+</sup> deposition kinetics. Consequently, the symmetrical Zn battery with ZCIM remains stable at a high depth of discharge of 93.2%, and the Zn/I<sub>2</sub> battery with ZCIM demonstrates a high-capacity retention rate of over 89% at a low N/P ratio of 2.6.</p>\",\"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}","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}
Constructing Charge-Delocalized Polycationic Protective Layer by Chitosan for Zinc-Ion Batteries
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.
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.
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