Synthesis of rod‐like Sb2Se3@MWCNT as Conductive‐additive free Anode for Sodium‐ion Batteries

IF 5.1 4区材料科学 Q2 ELECTROCHEMISTRY

Batteries & Supercaps Pub Date : 2024-08-01 DOI:10.1002/batt.202400378

Taejung Jung, Youngho Jin, Joon Ha Moon, Honggyu Seong, Geongil Kim, hyerin yoo, Seunghui Lee, Seung-Ryong Kwon, Sung Kuk Kim, Jaewon Choi

{"title":"Synthesis of rod‐like Sb2Se3@MWCNT as Conductive‐additive free Anode for Sodium‐ion Batteries","authors":"Taejung Jung, Youngho Jin, Joon Ha Moon, Honggyu Seong, Geongil Kim, hyerin yoo, Seunghui Lee, Seung-Ryong Kwon, Sung Kuk Kim, Jaewon Choi","doi":"10.1002/batt.202400378","DOIUrl":null,"url":null,"abstract":"Antimony selenide (Sb2Se3) is a promising electrode material for sodium‐ion batteries (SIBs) due to its high theoretical capacity. However, volume expansion during sodiation/desodiation and the low conductivity of Sb2Se3 reduce the electrochemical performance. Herein, we synthesized Sb2Se3 nanorods (NRs) and combined them with multi‐walled carbon nanotubes (MWCNTs) using one‐step composite process to address these issues. MWCNTs can accommodate volume expansion and provide high conductivity. The fabricated Sb2Se3 NRs@MWCNT electrode exhibits improved cycle performance and cyclic stability without additional conductive carbons. The Sb2Se3 NRs@MWCNT electrode showed an enhanced specific capacity of 440 mAhg‐1 at a current density of 0.1 Ag‐1, compared to 220 mAhg‐1 for Sb2Se3 NRs electrode. Additionally, it exhibited good stability at high current density. The in‐situ electrochemical impedance spectroscope (EIS) and Galvanostatic intermittent titration technique (GITT) were used to estimate the electrochemical properties and kinetics of Sb2Se3 NRs@MWCNT. These results showed that Sb2Se3 NRs@MWCNT have the potential for conductive‐free anode material in SIBs.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"100 1","pages":""},"PeriodicalIF":5.1000,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Batteries & Supercaps","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1002/batt.202400378","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}

引用次数: 0

Abstract

Antimony selenide (Sb2Se3) is a promising electrode material for sodium‐ion batteries (SIBs) due to its high theoretical capacity. However, volume expansion during sodiation/desodiation and the low conductivity of Sb2Se3 reduce the electrochemical performance. Herein, we synthesized Sb2Se3 nanorods (NRs) and combined them with multi‐walled carbon nanotubes (MWCNTs) using one‐step composite process to address these issues. MWCNTs can accommodate volume expansion and provide high conductivity. The fabricated Sb2Se3 NRs@MWCNT electrode exhibits improved cycle performance and cyclic stability without additional conductive carbons. The Sb2Se3 NRs@MWCNT electrode showed an enhanced specific capacity of 440 mAhg‐1 at a current density of 0.1 Ag‐1, compared to 220 mAhg‐1 for Sb2Se3 NRs electrode. Additionally, it exhibited good stability at high current density. The in‐situ electrochemical impedance spectroscope (EIS) and Galvanostatic intermittent titration technique (GITT) were used to estimate the electrochemical properties and kinetics of Sb2Se3 NRs@MWCNT. These results showed that Sb2Se3 NRs@MWCNT have the potential for conductive‐free anode material in SIBs.

查看原文本刊更多论文

合成棒状 Sb2Se3@MWCNT 作为钠离子电池的无导电添加阳极

硒化锑（Sb2Se3）具有很高的理论容量，是钠离子电池（SIB）的理想电极材料。然而，Sb2Se3 在钠化/解钠过程中的体积膨胀和低电导率降低了其电化学性能。在此，我们合成了 Sb2Se3 纳米棒（NRs），并采用一步法复合工艺将其与多壁碳纳米管（MWCNTs）相结合，以解决这些问题。MWCNTs 可适应体积膨胀并提供高导电性。制作的 Sb2Se3 NRs@MWCNT 电极无需额外的导电碳就能提高循环性能和循环稳定性。与 Sb2Se3 NRs 电极的 220 mAhg-1 相比，Sb2Se3 NRs@MWCNT 电极在电流密度为 0.1 Ag-1 时的比容量提高到了 440 mAhg-1。此外，它在高电流密度下表现出良好的稳定性。研究人员利用原位电化学阻抗谱（EIS）和静电间歇滴定技术（GITT）估算了 Sb2Se3 NRs@MWCNT 的电化学特性和动力学。这些结果表明，Sb2Se3 NRs@MWCNT 有潜力成为 SIB 中的无导电阳极材料。

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

Batteries & Supercaps Multiple-

CiteScore

8.60

自引率

5.30%

发文量

223

期刊介绍： Electrochemical energy storage devices play a transformative role in our societies. They have allowed the emergence of portable electronics devices, have triggered the resurgence of electric transportation and constitute key components in smart power grids. Batteries & Supercaps publishes international high-impact experimental and theoretical research on the fundamentals and applications of electrochemical energy storage. We support the scientific community to advance energy efficiency and sustainability.