Kai Zheng , Bin Yu , Wensheng Ma , Xiangyu Fei , Guanhua Cheng , Meijia Song , Zhonghua Zhang
{"title":"用于可充电镁离子电池的去合金化诱导多孔生物阳极","authors":"Kai Zheng , Bin Yu , Wensheng Ma , Xiangyu Fei , Guanhua Cheng , Meijia Song , Zhonghua Zhang","doi":"10.1016/j.jpowsour.2024.234943","DOIUrl":null,"url":null,"abstract":"<div><p>Alloy-type anodes have attracted extensive attention in magnesium-ion batteries (MIBs) due to their low reaction potentials and high theoretical specific capacities. However, the kinetically sluggish Mg insertion/extraction and diffusion in electrode materials, as well as the huge volume changes resulting in the capacity decay limit their further development. Herein, a series of porous-Bi (P-Bi<sub>x</sub>) anodes are fabricated through a facile dealloying strategy based on the Sn<sub>100-x</sub>Bi<sub>x</sub> (x = 1, 5, 10, 43, at.%) precursor alloys. Among them, the P–Bi<sub>10</sub> anode delivers a high discharge specific capacity (376.0 mAh g<sup>−1</sup> at 500 mA g<sup>−1</sup>), greatly improved rate capability (363.3 mAh g<sup>−1</sup> at 1000 mA g<sup>−1</sup>) and good cycling stability even at 2000 mA g<sup>−1</sup> (104.0 mAh g<sup>−1</sup> after 1000 cycles). Furthermore, operando X-ray diffraction (XRD) is performed to unveil the magnesiation/demagnesiation mechanisms of the P–Bi<sub>5</sub> and P–Bi<sub>10</sub> anodes, indicating a simple two-phase reaction process. Additionally, the P–Bi<sub>10</sub> anode displays good compatibility with conventional Mg salt electrolytes such as Mg(TFSI)<sub>2</sub>. Our findings could provide useful information on design of high-performance alloy-type anode materials for MIBs.</p></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":null,"pages":null},"PeriodicalIF":8.1000,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dealloying induced Porous Bi anodes for rechargeable magnesium-ion batteries\",\"authors\":\"Kai Zheng , Bin Yu , Wensheng Ma , Xiangyu Fei , Guanhua Cheng , Meijia Song , Zhonghua Zhang\",\"doi\":\"10.1016/j.jpowsour.2024.234943\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Alloy-type anodes have attracted extensive attention in magnesium-ion batteries (MIBs) due to their low reaction potentials and high theoretical specific capacities. However, the kinetically sluggish Mg insertion/extraction and diffusion in electrode materials, as well as the huge volume changes resulting in the capacity decay limit their further development. Herein, a series of porous-Bi (P-Bi<sub>x</sub>) anodes are fabricated through a facile dealloying strategy based on the Sn<sub>100-x</sub>Bi<sub>x</sub> (x = 1, 5, 10, 43, at.%) precursor alloys. Among them, the P–Bi<sub>10</sub> anode delivers a high discharge specific capacity (376.0 mAh g<sup>−1</sup> at 500 mA g<sup>−1</sup>), greatly improved rate capability (363.3 mAh g<sup>−1</sup> at 1000 mA g<sup>−1</sup>) and good cycling stability even at 2000 mA g<sup>−1</sup> (104.0 mAh g<sup>−1</sup> after 1000 cycles). Furthermore, operando X-ray diffraction (XRD) is performed to unveil the magnesiation/demagnesiation mechanisms of the P–Bi<sub>5</sub> and P–Bi<sub>10</sub> anodes, indicating a simple two-phase reaction process. Additionally, the P–Bi<sub>10</sub> anode displays good compatibility with conventional Mg salt electrolytes such as Mg(TFSI)<sub>2</sub>. Our findings could provide useful information on design of high-performance alloy-type anode materials for MIBs.</p></div>\",\"PeriodicalId\":377,\"journal\":{\"name\":\"Journal of Power Sources\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.1000,\"publicationDate\":\"2024-06-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Power Sources\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0378775324008954\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Power Sources","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0378775324008954","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
摘要
合金型阳极因其反应电位低、理论比容量高而在镁离子电池(MIB)中受到广泛关注。然而,镁在电极材料中缓慢的插入/萃取和扩散,以及导致容量衰减的巨大体积变化限制了它们的进一步发展。本文以 Sn100-xBix(x = 1、5、10、43、at.%)前驱体合金为基础,通过简便的脱合金策略制造了一系列多孔铋(P-Bix)阳极。其中,P-Bi10 阳极具有较高的放电比容量(500 mA g-1 时为 376.0 mAh g-1),大大提高了速率能力(1000 mA g-1 时为 363.3 mAh g-1),即使在 2000 mA g-1 时也具有良好的循环稳定性(1000 次循环后为 104.0 mAh g-1)。此外,还进行了操作性 X 射线衍射 (XRD),以揭示 P-Bi5 和 P-Bi10 阳极的镁化/脱镁机制,表明这是一个简单的两相反应过程。此外,P-Bi10 阳极与传统的镁盐电解质(如 Mg(TFSI)2)具有良好的兼容性。我们的研究结果可为设计用于 MIB 的高性能合金型阳极材料提供有用信息。
Dealloying induced Porous Bi anodes for rechargeable magnesium-ion batteries
Alloy-type anodes have attracted extensive attention in magnesium-ion batteries (MIBs) due to their low reaction potentials and high theoretical specific capacities. However, the kinetically sluggish Mg insertion/extraction and diffusion in electrode materials, as well as the huge volume changes resulting in the capacity decay limit their further development. Herein, a series of porous-Bi (P-Bix) anodes are fabricated through a facile dealloying strategy based on the Sn100-xBix (x = 1, 5, 10, 43, at.%) precursor alloys. Among them, the P–Bi10 anode delivers a high discharge specific capacity (376.0 mAh g−1 at 500 mA g−1), greatly improved rate capability (363.3 mAh g−1 at 1000 mA g−1) and good cycling stability even at 2000 mA g−1 (104.0 mAh g−1 after 1000 cycles). Furthermore, operando X-ray diffraction (XRD) is performed to unveil the magnesiation/demagnesiation mechanisms of the P–Bi5 and P–Bi10 anodes, indicating a simple two-phase reaction process. Additionally, the P–Bi10 anode displays good compatibility with conventional Mg salt electrolytes such as Mg(TFSI)2. Our findings could provide useful information on design of high-performance alloy-type anode materials for MIBs.
期刊介绍:
The Journal of Power Sources is a publication catering to researchers and technologists interested in various aspects of the science, technology, and applications of electrochemical power sources. It covers original research and reviews on primary and secondary batteries, fuel cells, supercapacitors, and photo-electrochemical cells.
Topics considered include the research, development and applications of nanomaterials and novel componentry for these devices. Examples of applications of these electrochemical power sources include:
• Portable electronics
• Electric and Hybrid Electric Vehicles
• Uninterruptible Power Supply (UPS) systems
• Storage of renewable energy
• Satellites and deep space probes
• Boats and ships, drones and aircrafts
• Wearable energy storage systems