{"title":"Concentrated perchlorate-based electrolyte facilitates Zn anode-compatible in situ solid electrolyte interphase","authors":"Yin-Sheng Li, Li-Shan Geng, Bo-Mian Zhang, Zi-He Wei, Hao Fan, Jing-Hao Li, Wen-Cong Feng, Liang Zhou","doi":"10.1007/s12598-024-02972-7","DOIUrl":null,"url":null,"abstract":"<div><p>Zinc perchlorate (Zn(ClO<sub>4</sub>)<sub>2</sub>) electrolytes have demonstrated favorable low-temperature performance in aqueous zinc-ion batteries (AZIBs). However, the Zn anode encounters serious dendrite formation and parasitic reactions in zinc perchlorate electrolytes, which is caused by the fast corrosive kinetics at room temperature. Herein, a concentrated perchlorate-based electrolyte consisting of 4.0 M Zn(ClO<sub>4</sub>)<sub>2</sub> and saturated NaClO<sub>4</sub> solution is developed to achieve dendrite-free and stable AZIBs at room temperature. The ClO<sub>4</sub><sup>−</sup> participates in the primary solvation sheath of Zn<sup>2+</sup>, facilitating the in situ formation of Zn<sub>5</sub>(OH)<sub>8</sub>Cl<sub>2</sub>·H<sub>2</sub>O-rich solid electrolyte interphase (SEI) to suppress the corrosion effect of ClO<sub>4</sub><sup>−</sup>. The Zn anode protected by the SEI achieves stable Zn plating/stripping over 3000 h. Furthermore, the MnO<sub>2</sub>||Zn full cells manifest a stable specific capacity of 200 mAh·g<sup>−1</sup> at 28 °C and 101 mAh·g<sup>−1</sup> at − 20 °C. This work introduces a promising approach for boosting the room-temperature performance of perchlorate-based electrolytes for AZIBs.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 2","pages":"950 - 960"},"PeriodicalIF":9.6000,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Rare Metals","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12598-024-02972-7","RegionNum":1,"RegionCategory":"材料科学","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
Zinc perchlorate (Zn(ClO4)2) electrolytes have demonstrated favorable low-temperature performance in aqueous zinc-ion batteries (AZIBs). However, the Zn anode encounters serious dendrite formation and parasitic reactions in zinc perchlorate electrolytes, which is caused by the fast corrosive kinetics at room temperature. Herein, a concentrated perchlorate-based electrolyte consisting of 4.0 M Zn(ClO4)2 and saturated NaClO4 solution is developed to achieve dendrite-free and stable AZIBs at room temperature. The ClO4− participates in the primary solvation sheath of Zn2+, facilitating the in situ formation of Zn5(OH)8Cl2·H2O-rich solid electrolyte interphase (SEI) to suppress the corrosion effect of ClO4−. The Zn anode protected by the SEI achieves stable Zn plating/stripping over 3000 h. Furthermore, the MnO2||Zn full cells manifest a stable specific capacity of 200 mAh·g−1 at 28 °C and 101 mAh·g−1 at − 20 °C. This work introduces a promising approach for boosting the room-temperature performance of perchlorate-based electrolytes for AZIBs.
期刊介绍：
Rare Metals is a monthly peer-reviewed journal published by the Nonferrous Metals Society of China. It serves as a platform for engineers and scientists to communicate and disseminate original research articles in the field of rare metals. The journal focuses on a wide range of topics including metallurgy, processing, and determination of rare metals. Additionally, it showcases the application of rare metals in advanced materials such as superconductors, semiconductors, composites, and ceramics.
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