Facile and scalable synthesis of bismuth oxyhalide nanosheets anodes for fast and durable sodium-ion storage

IF 6.8 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Science China Materials Pub Date : 2024-11-18 DOI:10.1007/s40843-024-3175-3

Shenghui Zhou (, ), Zhefei Sun (, ), Zilong Zhuang (, ), Sifan Wen (, ), Haoyu Chen (, ), Quanzhi Yin (, ), Jianhai Pan (, ), Xingqi Chen (, ), Jijian Xu (, ), Qiaobao Zhang (, )

{"title":"Facile and scalable synthesis of bismuth oxyhalide nanosheets anodes for fast and durable sodium-ion storage","authors":"Shenghui Zhou \n (, ), Zhefei Sun \n (, ), Zilong Zhuang \n (, ), Sifan Wen \n (, ), Haoyu Chen \n (, ), Quanzhi Yin \n (, ), Jianhai Pan \n (, ), Xingqi Chen \n (, ), Jijian Xu \n (, ), Qiaobao Zhang \n (, )","doi":"10.1007/s40843-024-3175-3","DOIUrl":null,"url":null,"abstract":"<div><p>Bismuth oxyhalide (BiOCl) holds promising potential as the anode for sodium-ion batteries (SIBs) due to its high theoretical capacity and unique layered structure. However, its practical applications are hindered by challenges such as large volume variations during cycling, the ambiguous Na<sup>+</sup>-storage mechanism, and complex synthesis methods. Here, we present a facile and scalable strategy to fabricate a high-performance BiOCl nanosheets anode for SIBs. Through comprehensive <i>in-situ</i> and <i>ex-situ</i> microscopic characterizations and electrochemical analysis, we reveal that the sodiation/desodiation process of the BiOCl nanosheets anode leads to the formation of metallic Bi and Na<sub>3</sub>OCl. The metallic Bi acts as an active material for Na<sup>+</sup> storage in subsequent cycles, while the formed Na<sub>3</sub>OCl enhances the stability of the solid-electrolyte interphase (SEI) layer and facilitates Na<sup>+</sup> transport. Additionally, the metallic Bi gradually transforms into a nanoporous structure during cycling, improving Na<sup>+</sup> transport and mitigating volume variations. As a result, the BiOCl nanosheets anode exhibits outstanding electrochemical performance, with impressive rate capability and cycling stability. Furthermore, full cells paired with the Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> (NVP) cathode and pre-cycled BiOCl nanosheets anode also demonstrate a superior rate and cycling performance. This work offers valuable insight into the development of high-performance anodes for advanced SIBs.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 3","pages":"868 - 878"},"PeriodicalIF":6.8000,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science China Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s40843-024-3175-3","RegionNum":2,"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

Bismuth oxyhalide (BiOCl) holds promising potential as the anode for sodium-ion batteries (SIBs) due to its high theoretical capacity and unique layered structure. However, its practical applications are hindered by challenges such as large volume variations during cycling, the ambiguous Na⁺-storage mechanism, and complex synthesis methods. Here, we present a facile and scalable strategy to fabricate a high-performance BiOCl nanosheets anode for SIBs. Through comprehensive in-situ and ex-situ microscopic characterizations and electrochemical analysis, we reveal that the sodiation/desodiation process of the BiOCl nanosheets anode leads to the formation of metallic Bi and Na₃OCl. The metallic Bi acts as an active material for Na⁺ storage in subsequent cycles, while the formed Na₃OCl enhances the stability of the solid-electrolyte interphase (SEI) layer and facilitates Na⁺ transport. Additionally, the metallic Bi gradually transforms into a nanoporous structure during cycling, improving Na⁺ transport and mitigating volume variations. As a result, the BiOCl nanosheets anode exhibits outstanding electrochemical performance, with impressive rate capability and cycling stability. Furthermore, full cells paired with the Na₃V₂(PO₄)₃ (NVP) cathode and pre-cycled BiOCl nanosheets anode also demonstrate a superior rate and cycling performance. This work offers valuable insight into the development of high-performance anodes for advanced SIBs.

查看原文本刊更多论文

用于快速和持久钠离子存储的氧化卤化铋纳米片阳极的简单和可扩展合成

氧化卤化铋（BiOCl）具有较高的理论容量和独特的层状结构，作为钠离子电池（sib）的阳极具有广阔的应用前景。然而，它的实际应用受到诸如循环过程中体积变化大、Na+存储机制不明确以及复杂的合成方法等挑战的阻碍。在这里，我们提出了一个简单的和可扩展的策略来制造高性能BiOCl纳米片阳极的sib。通过全面的原位和非原位微观表征以及电化学分析，我们揭示了BiOCl纳米片阳极的钠化/脱钠过程导致金属Bi和Na3OCl的形成。金属Bi在随后的循环中充当Na+存储的活性材料，而形成的Na3OCl增强了固体电解质间相（SEI）层的稳定性，促进了Na+的运输。此外，金属铋在循环过程中逐渐转变为纳米孔结构，改善了Na+的运输并减轻了体积变化。因此，BiOCl纳米片阳极表现出出色的电化学性能，具有令人印象深刻的速率能力和循环稳定性。此外，与Na3V2(PO4)3 （NVP）阴极和预循环BiOCl纳米片阳极配对的全电池也表现出优异的倍率和循环性能。这项工作为高级sib高性能阳极的开发提供了有价值的见解。

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

Science China Materials Materials Science-General Materials Science

CiteScore

11.40

自引率

7.40%

发文量

949

期刊介绍： Science China Materials (SCM) is a globally peer-reviewed journal that covers all facets of materials science. It is supervised by the Chinese Academy of Sciences and co-sponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China. The journal is jointly published monthly in both printed and electronic forms by Science China Press and Springer. The aim of SCM is to encourage communication of high-quality, innovative research results at the cutting-edge interface of materials science with chemistry, physics, biology, and engineering. It focuses on breakthroughs from around the world and aims to become a world-leading academic journal for materials science.