用于稳定锌金属阳极的三维导电疏水层

SusMat Pub Date : 2024-05-15 DOI:10.1002/sus2.197
Yang Mei, Jiahui Zhou, Botao Zhang, Li Li, Feng Wu, Yongxin Huang, Renjie Chen
{"title":"用于稳定锌金属阳极的三维导电疏水层","authors":"Yang Mei, Jiahui Zhou, Botao Zhang, Li Li, Feng Wu, Yongxin Huang, Renjie Chen","doi":"10.1002/sus2.197","DOIUrl":null,"url":null,"abstract":"The interrelated side reactions and dendrites growth severely destabilize the electrode/electrolyte interfaces, resulting in the difficult application of aqueous Zn ion batteries (AZIBs). Hydrophobic protective layer possesses natural inhibition ability for side reactions. However, the conventional protective layer with plane structure is difficult to attain joint regulation of side reaction and Zn nucleation. Herein, a novel three‐dimensional (3D) electrically conductive and hydrophobic (3DECH) interface is elaborated to enable stable Zn anode. The as‐prepared 3DECH interface presents a uniform 3D morphology with hydrophobic property, large specific surface area, abundant zincophilic sites, and excellent electroconductivity. Therefore, the 3DECH interface achieves uniform nucleation and dendrite‐free deposition from synergetic benefits: (1) increased nucleation sites and reduced local current density through the special 3D structure and (2) uniform electric potential distribution and rapid Zn2+ transport due to the electroconductive alloy chemistry, thus coupling the hydrophobic property to obtain a highly reversible Zn anode. Consequently, the modified anode achieves a superior coulombic efficiency of 99.88% over 3500 cycles, and the pouch cells using modified anode and LiMn2O4 (LMO) cathode retain a capacity of 84 mAh g−1 after 700 cycles at a reasonable depth discharge of 36%, without dendrite piercing and “dead Zn.”","PeriodicalId":506315,"journal":{"name":"SusMat","volume":"61 32","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Three‐dimensional electrically conductive–hydrophobic layer for stable Zn metal anodes\",\"authors\":\"Yang Mei, Jiahui Zhou, Botao Zhang, Li Li, Feng Wu, Yongxin Huang, Renjie Chen\",\"doi\":\"10.1002/sus2.197\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The interrelated side reactions and dendrites growth severely destabilize the electrode/electrolyte interfaces, resulting in the difficult application of aqueous Zn ion batteries (AZIBs). Hydrophobic protective layer possesses natural inhibition ability for side reactions. However, the conventional protective layer with plane structure is difficult to attain joint regulation of side reaction and Zn nucleation. Herein, a novel three‐dimensional (3D) electrically conductive and hydrophobic (3DECH) interface is elaborated to enable stable Zn anode. The as‐prepared 3DECH interface presents a uniform 3D morphology with hydrophobic property, large specific surface area, abundant zincophilic sites, and excellent electroconductivity. Therefore, the 3DECH interface achieves uniform nucleation and dendrite‐free deposition from synergetic benefits: (1) increased nucleation sites and reduced local current density through the special 3D structure and (2) uniform electric potential distribution and rapid Zn2+ transport due to the electroconductive alloy chemistry, thus coupling the hydrophobic property to obtain a highly reversible Zn anode. Consequently, the modified anode achieves a superior coulombic efficiency of 99.88% over 3500 cycles, and the pouch cells using modified anode and LiMn2O4 (LMO) cathode retain a capacity of 84 mAh g−1 after 700 cycles at a reasonable depth discharge of 36%, without dendrite piercing and “dead Zn.”\",\"PeriodicalId\":506315,\"journal\":{\"name\":\"SusMat\",\"volume\":\"61 32\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-05-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"SusMat\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1002/sus2.197\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"SusMat","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/sus2.197","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

相互关联的副反应和树枝状突起严重破坏了电极/电解质界面的稳定性,导致锌离子水电池(AZIB)难以应用。疏水保护层对副反应具有天然的抑制能力。然而,传统的平面结构保护层难以实现对副反应和锌成核的联合调控。本文阐述了一种新型三维(3D)导电疏水(3DECH)界面,以实现稳定的锌阳极。制备的三维疏水界面呈现出均匀的三维形态,具有疏水特性、较大的比表面积、丰富的亲锌位点和优异的导电性。因此,3DECH 界面实现了均匀成核和无树枝状沉积的协同效益:(1)特殊的三维结构增加了成核位点,降低了局部电流密度;(2)电导合金化学性质带来了均匀的电动势分布和快速的 Zn2+ 传输,从而耦合了疏水特性,获得了高可逆性的锌阳极。因此,经过改良的阳极在 3500 次循环中实现了 99.88% 的优异库仑效率,而使用改良阳极和锰酸锂(LMO)阴极的袋式电池在 36% 的合理深度放电条件下经过 700 次循环后仍能保持 84 mAh g-1 的容量,且不会出现枝晶穿孔和 "死锌 "现象。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Three‐dimensional electrically conductive–hydrophobic layer for stable Zn metal anodes
The interrelated side reactions and dendrites growth severely destabilize the electrode/electrolyte interfaces, resulting in the difficult application of aqueous Zn ion batteries (AZIBs). Hydrophobic protective layer possesses natural inhibition ability for side reactions. However, the conventional protective layer with plane structure is difficult to attain joint regulation of side reaction and Zn nucleation. Herein, a novel three‐dimensional (3D) electrically conductive and hydrophobic (3DECH) interface is elaborated to enable stable Zn anode. The as‐prepared 3DECH interface presents a uniform 3D morphology with hydrophobic property, large specific surface area, abundant zincophilic sites, and excellent electroconductivity. Therefore, the 3DECH interface achieves uniform nucleation and dendrite‐free deposition from synergetic benefits: (1) increased nucleation sites and reduced local current density through the special 3D structure and (2) uniform electric potential distribution and rapid Zn2+ transport due to the electroconductive alloy chemistry, thus coupling the hydrophobic property to obtain a highly reversible Zn anode. Consequently, the modified anode achieves a superior coulombic efficiency of 99.88% over 3500 cycles, and the pouch cells using modified anode and LiMn2O4 (LMO) cathode retain a capacity of 84 mAh g−1 after 700 cycles at a reasonable depth discharge of 36%, without dendrite piercing and “dead Zn.”
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信