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Stabilization of flake zn powder anodes via designing functional additives in electrolytes for aqueous zn ion batteries

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Journal of Energy Chemistry 2024年第12期99卷 139-148页

作者： Hang Liu Penghui Cao Ying Chen Can Chen Sicheng Fan Chuanchang Li Huali Zhu MengDi Wu Juan Yang College of Energy and Power Engineering Changsha University of Science&TechnologyChangsha 41114HunanChina State Key Laboratory of Disaster Prevention&Reduction for Power Grid Changsha University of Science&TechnologyChangsha 410114HunanChina School of Metallurgy and Environment Central South UniversityChangsha 410083HunanChina College of Materials Xiamen UniversityXiamen 361005FujianChina

zn powder anodes have attracted much attention in aqueous zn ion battery applications due to advantages such as low cost and ***,the high-activity zn powder anode faces problems such as side reactions,hydrogen evolution,and dendrites,which limit the cycling stability of the *** this work,the high activity of zn powder is weakened by introducing low-cost erythritol as a functional additive in the znSO_(4) electrolyte to improve the cycle life of the *** theoretical calculations and empirical evidence demonstrate that the incorporation of erythritol alters the coordination sphere of zn^(2+)and modifies the local molecular architecture of the *** modification serves to diminish the reactivity of water molecules,thereby efficaciously suppressing dendrite formation and deleterious ancillary reactions on the zinc powder anode ***,erythritol functions as an interfacial cationic captor,enhancing reaction dynamics and facilitating the development of a favorable protective layer throughout the zinc plating/stripping ***,the symmetric cell paired with an erythritol-containing electrolyte manifests stable cycling performance for an extended duration of 850 h at a current density of 0.288 mA cm^(-2)and areal capacity of 0.144 mAh cm^(-2).Notably,it maintains a cycling life of 400 h even under intensified conditions (2.88 mA cm^(-2)/1.44 mA h cm^(-2)).Furthermore,the constructed Na_(2)V_(6)O_(16)·3H_(2)O full cell illustrated remarkable capacity retention of 155.8 mA h g^(-1)following 800 cycles at a high rate of 5 A g^(-1).

关键词： aqueous zn ion batteries zn powder anode Electrolyte Erythritol

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Covalent Organic Framework with 3D Ordered Channel and Multi-Functional Groups Endows zn Anode with Superior Stability

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Nano-Micro Letters 2024年第4期16卷 350-363页

作者： Bin Li Pengchao Ruan Xieyu Xu Zhangxing He Xinyan Zhu Liang Pan Ziyu Peng Yangyang Liu Peng Zhou Bingan Lu Lei Dai Jiang Zhou School of Chemical Engineering North China University of Science and TechnologyTangshan 063009People’s Republic of China School of Materials Science and Engineering Central South UniversityChangsha 410083People’s Republic of China State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an 710049People’s Republic of China Hunan Provincial Key Defense Laboratory of High Temperature Wear‑Resisting Materials and Preparation Technology Hunan University of Science and TechnologyXiangtan 411201People’s Republic of China School of Physics and Electronics Hunan UniversityChangsha 410082People’s Republic of China

Achieving a highly robust zinc(zn)metal anode is extremely important for improving the performance of aqueous zn-ion batteries(AZIBs)for advancing“carbon neutrality”society,which is hampered by the uncontrollable growth of zn dendrite and severe side reactions including hydrogen evolution reaction,corrosion,and passivation,***,an interlayer containing fluorinated zincophilic covalent organic framework with sulfonic acid groups(COF-S-F)is developed on zn metal(zn@COF-S-F)as the artificial solid electrolyte interface(SEI).Sulfonic acid group(-SO_(3)H)in COF-S-F can effectively ameliorate the desolvation process of hydrated zn ions,and the three-dimensional channel with fluoride group(-F)can provide interconnected channels for the favorable transport of zn ions with ion-confinement effects,endowing zn@COF-S-F with dendrite-free morphology and suppressed side ***,zn@COF-S-F symmetric cell can stably cycle for 1,000 h with low average hysteresis voltage(50.5 m V)at the current density of 1.5 m A cm^(-2).zn@COF-S-F|Mn O_(2)cell delivers the discharge specific capacity of 206.8 m Ah g^(-1)at the current density of 1.2 A g^(-1)after 800 cycles with high-capacity retention(87.9%).Enlightening,building artificial SEI on metallic zn surface with targeted design has been proved as the effective strategy to foster the practical application of high-performance AZIBs.

关键词： aqueous zn ion batteries Covalent organic framework Interfacial modification zn ion flux regulation Desolvation effect

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Flat zn deposition at battery anode via an ultrathin robust interlayer

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Nano Research 2024年第9期17卷 8104-8111页

作者： Yizhou Wang Jianyu Chen Zibo Chen Qian He Zhengnan Tian Jin Zhao Yanwen Ma Husam N.Alshareef Materials Science and Engineering King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia State Key Laboratory of Organic Electronics and Information Displays(KLOEID)and Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Nanjing University of Posts and TelecommunicationsNanjing 210023China Suzhou Vocational Institute of Industrial Technology Suzhou 215104China

Rechargeable aqueous zinc(zn)ion batteries(AZIBs)using low-cost and safe zn metal anodes are considered promising candidates for future grid-scale energy storage systems,but the zn dendrite problem severely hinders the further prospects of *** zn depositing behaviors toward horizontal alignment is highly effective and thus has received huge ***,such a strategy is usually based on previous substrate engineering,which requires complex preparation or expensive ***,it is essential to develop a novel solution that can realize horizontally aligned zn flake deposition via easy operation and low ***,we report an ultrathin and robust Kevlar membrane as the interlayer to mechanically suppress zn dendrite *** to the randomly distributed flaky dendrites in the control group,the deposited zn sheets would grow into parallel alignment with the existence of such *** the dendrites are effectively suppressed,zn||Cu asymmetric,zn||zn symmetric,and zn||MnO_(2)full batteries using Kevlar interlayer deliver significantly improved cycling ***,the zn||MnO_(2)pouch cell using a Kevlar interlayer delivers stable cycling performance and shows stable operation during multi-angle *** believe this work provides a new possibility for regulating zn deposition from a crystallographic perspective.

关键词： zn metal anodes zn dendrites aqueous zn ion batteries dendrite suppression (002)crystal plane

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Recent developments in three-dimensional zn metal anodes for battery applications

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InfoMat 2024年第1期6卷 1-30页

作者： Jianyu Chen Yizhou Wang Zhengnan Tian Jin Zhao Yanwen Ma Husam N.Alshareef State Key Laboratory of Organic Electronics and Information Displays(KLOEID)and Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Nanjing University of Posts&Telecommunications(NUPT)Nanjingthe People's Republic of China Materials Science and Engineering King Abdullah University of Science and Technology(KAUST)ThuwalSaudi Arabia Suzhou Vocational Institute of Industrial Technology Suzhouthe People's Republic of China

aqueous zinc(zn)ion batteries(AZIBs)are regarded as one of the promising candidates for next-generation electrochemical energy storage systems due to their low cost,high safety,and environmental ***,the commercialization of AZIBs has been severely restricted by the growth of dendrite at the zn metal *** the planar-structured zn anodes into threedimensional(3D)structures has proven to be an effective way to modulate the plating/stripping behavior of zn anodes,resulting in the suppression of dendrite *** review provides an up-to-date review of 3D structured zn metal anodes,including working principles,design,current status,and future *** aim to give the readers a comprehensive understanding of 3D-structured zn anodes and their effective usage to enhance AZIB performance.

关键词： 3D metal anodes aqueous zn ion batteries dendrite suppression zn dendrite zn metal anodes

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