{"title":"多层涂层SiO2@NC@TiN碳纳米纤维作为阳极，具有优异的循环稳定性","authors":"Shiwen Zhang, Taoming Yu, Zhuoran Sun, Wenjing Song, Lili Li, Shujun Dong","doi":"10.1007/s10008-024-06082-3","DOIUrl":null,"url":null,"abstract":"<div><p>Nanostructure engineering and carbon incorporation can effectively achieve superior lithium storage performance of SiO<sub>2</sub> anode. However, the working operation at high rates and extreme temperatures remains a challenge for SiO<sub>2</sub>-based anode. Here, SiO<sub>2</sub>@N-doped carbon (SiO<sub>2</sub>@NC) nanospheres encapsulated in the TiN/C nanofibers (SiO<sub>2</sub>@NC@TiN/C) were fabricated via coaxial electrospinning. The SiO<sub>2</sub>@NC@TiN/C with a robust structure and conductive shells exhibited excellent cycling stability and fast Li<sup>+</sup> diffusion kinetics. The SiO<sub>2</sub>@NC@TiN/C electrode delivered a superior rate performance (317.9 mAh g<sup>−1</sup>) and ultra-long cycle life (284.5 mAh g<sup>−1</sup> after 3200 cycles) at 10 A g<sup>−1</sup>. Furthermore, the SiO<sub>2</sub>@NC@TiN/C electrode maintained an excellent cycling stability at 65 ℃ (420.6 mAh g<sup>−1</sup> after 300 cycles at 1 A g<sup>−1</sup>). This research offered an ingenious design way to create a multilayer coated anode, which could exhibit good electrochemical performance under harsh conditions.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 2","pages":"595 - 604"},"PeriodicalIF":2.6000,"publicationDate":"2024-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Multilayer coated SiO2@NC@TiN carbon nanofibers as anode with exceptional cycling stability\",\"authors\":\"Shiwen Zhang, Taoming Yu, Zhuoran Sun, Wenjing Song, Lili Li, Shujun Dong\",\"doi\":\"10.1007/s10008-024-06082-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Nanostructure engineering and carbon incorporation can effectively achieve superior lithium storage performance of SiO<sub>2</sub> anode. However, the working operation at high rates and extreme temperatures remains a challenge for SiO<sub>2</sub>-based anode. Here, SiO<sub>2</sub>@N-doped carbon (SiO<sub>2</sub>@NC) nanospheres encapsulated in the TiN/C nanofibers (SiO<sub>2</sub>@NC@TiN/C) were fabricated via coaxial electrospinning. The SiO<sub>2</sub>@NC@TiN/C with a robust structure and conductive shells exhibited excellent cycling stability and fast Li<sup>+</sup> diffusion kinetics. The SiO<sub>2</sub>@NC@TiN/C electrode delivered a superior rate performance (317.9 mAh g<sup>−1</sup>) and ultra-long cycle life (284.5 mAh g<sup>−1</sup> after 3200 cycles) at 10 A g<sup>−1</sup>. Furthermore, the SiO<sub>2</sub>@NC@TiN/C electrode maintained an excellent cycling stability at 65 ℃ (420.6 mAh g<sup>−1</sup> after 300 cycles at 1 A g<sup>−1</sup>). This research offered an ingenious design way to create a multilayer coated anode, which could exhibit good electrochemical performance under harsh conditions.</p></div>\",\"PeriodicalId\":665,\"journal\":{\"name\":\"Journal of Solid State Electrochemistry\",\"volume\":\"29 2\",\"pages\":\"595 - 604\"},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2024-09-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Solid State Electrochemistry\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10008-024-06082-3\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ELECTROCHEMISTRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Solid State Electrochemistry","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10008-024-06082-3","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
引用次数: 0
摘要
纳米结构工程和碳掺入可以有效地实现SiO2阳极优异的储锂性能。然而，在高速率和极端温度下的工作仍然是sio2基阳极的一个挑战。本文采用同轴静电纺丝的方法制备了包裹在TiN/C纳米纤维（SiO2@NC@TiN/C）中的SiO2@N-doped碳纳米球（SiO2@NC）。SiO2@NC@TiN/C具有坚固的结构和导电壳，具有良好的循环稳定性和快速的Li+扩散动力学。SiO2@NC@TiN/C电极在10 a g - 1下具有优异的倍率性能（317.9 mAh g - 1）和超长的循环寿命（3200次循环后284.5 mAh g - 1）。此外，SiO2@NC@TiN/C电极在65℃下保持了良好的循环稳定性（在1 A g−1下循环300次后保持420.6 mAh g−1）。该研究提供了一种巧妙的设计方法来制造多层涂层阳极，该阳极在恶劣条件下也能表现出良好的电化学性能。
Multilayer coated SiO2@NC@TiN carbon nanofibers as anode with exceptional cycling stability
Nanostructure engineering and carbon incorporation can effectively achieve superior lithium storage performance of SiO2 anode. However, the working operation at high rates and extreme temperatures remains a challenge for SiO2-based anode. Here, SiO2@N-doped carbon (SiO2@NC) nanospheres encapsulated in the TiN/C nanofibers (SiO2@NC@TiN/C) were fabricated via coaxial electrospinning. The SiO2@NC@TiN/C with a robust structure and conductive shells exhibited excellent cycling stability and fast Li+ diffusion kinetics. The SiO2@NC@TiN/C electrode delivered a superior rate performance (317.9 mAh g−1) and ultra-long cycle life (284.5 mAh g−1 after 3200 cycles) at 10 A g−1. Furthermore, the SiO2@NC@TiN/C electrode maintained an excellent cycling stability at 65 ℃ (420.6 mAh g−1 after 300 cycles at 1 A g−1). This research offered an ingenious design way to create a multilayer coated anode, which could exhibit good electrochemical performance under harsh conditions.
期刊介绍：
The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry.
The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces.
The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis.
The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.
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