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Design Strategies for Aqueous Zinc Metal Batteries with High Zinc Utilization: From Metal Anodes to Anode-Free Structures

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Nano-Micro Letters 2024年第4期16卷 305-349页

作者： Xianfu Zhang Long Zhang Xinyuan Jia Wen Song Yongchang Liu School of Materials Science and Engineering University of Science and Technology Beijing30 College RoadBeijing 100083People’s Republic of China Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and TechnologyState Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijing 100083People’s Republic of China

Aqueous zinc metal batteries(AZMBs)are promising candidates for next-generation energy storage due to the excellent safety, environmental friendliness, natural abundance, high theoretical specific capacity, and low redox potential of zinc(Zn) metal. However,several issues such as dendrite formation, hydrogen evolution, corrosion, and passivation of Zn metal anodes cause irreversible loss of the active materials. To solve these issues, researchers often use large amounts of excess Zn to ensure a continuous supply of active materials for Zn anodes. This leads to the ultralow utilization of Zn anodes and squanders the high energy density of AZMBs. Herein, the design strategies for AZMBs with high Zn utilization are discussed in depth, from utilizing thinner Zn foils to constructing anode-free structures with theoretical Zn utilization of 100%, which provides comprehensive guidelines for further research. Representative methods for calculating the depth of discharge of Zn anodes with different structures are first summarized. The reasonable modification strategies of Zn foil anodes, current collectors with pre-deposited Zn, and anode-free aqueous Zn metal batteries(AF-AZMBs) to improve Zn utilization are then detailed. In particular, the working mechanism of AF-AZMBs is systematically introduced. Finally, the challenges and perspectives for constructing high-utilization Zn anodes are presented.

关键词： Aqueous zinc metal batteries Zinc anodes High zinc utilization depth of discharge Anode-free structures

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Highly stable lithium anode enabled by self-assembled monolayer of dihexadecanoalkyl phosphate

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Nano Research 2020年第5期13卷 1324-1331页

作者： Lei Zheng Feng Guo Tuo Kang Jin Yang Ya Liu Wei Gu Yanfei Zhao Hongzhen Lin Yanbin Shen Wei Lu Liwei Chen School of Nano Technology and Nano Bionics University of Science and Technology of ChinaHefei 230026China i-Lab CAS Center for Excellence in NanoscienceSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China Vacuum Interconnected Nanotech Workstation(Nano-X) Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinses Academy of Science(CAS)Suzhou 215123China In-situ Center for Physical Sciences School of Chemistry and Chemical EngineeringShanghai Jiaotong UniversityShanghai 200240China

Li has been considered as the ultimate anode material for high energy density secondary Li ***,its practical application has been limited due to its low Coulombic efficiency(CE)and the formation of lithium ***,we have developed a microspherical Li-carbon nanotube(Li-CNT)composite material passivated with octadecylphosphonic acid(OPA)self-assembled monolayer(SAM)exhibiting suppressed lithium dendrite formation and improved environmental/electrochemical *** this work,we demonstrated the significantly enhanced passivation effects of a SAM using dihexadecanoalkyl phosphate(DHP),a molecule that is comprised of double hydrophobic alkyl chains and forms a denser SAM on surfaces with large *** a result,the DHP SAM delivers superior environmental and electrochemical stability to the OPA passivated Li-CNT *** specific,the DHP passivated Li-CNT composite(DHP-Li-CNT)delivers a high CE of 99.25%under a 33.3%depth of discharge(DOD)at 1 C,when it is paired with a LiFePO4 *** evolution of the SAM during cycling and the effects of DOD and current density on the CE of the DHP-Li-CNT anode have also been *** improved SAM passivation constitutes an important step in achieving the goal of practically applicable Li anodes.

关键词： Li metal anode Li-CNT self-assembled monolayer depth of discharge Coulombic efficiency

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Low-temperature replacement construction of three-dimensional corrosion-resistant interface for deeply rechargeable Zn metal batteries

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Nano Materials Science 2024年第3期6卷 329-336页

作者： Jinze Li Daniel Rohrens Gianluca Dalfollo Xiaochao Wu Ziheng Lu Qiang Gao Bo Han Ruimin Sun Chenggang Zhou Jindi Wang Zhao Cai Faculty of Materials Science and Chemistry China University of GeosciencesWuhan430074China Institute of Inorganic Chemistry RWTH Aachen UniversityAachen52074Germany Microsoft Research AI4Science Beijing10080China Institute of New Energy on Chemical Storage and Power Sources College of Applied Chemistry and Environmental EngineeringYancheng Teachers UniversityYancheng224000China

Aqueous Zn batteries are promising candidates for grid-scale renewable energy *** electrodes have been widely investigated and applied as anode materials for aqueous Zn batteries,however,they suffer from limited surface area and severe interfacial issues including metallic dendrites and corrosion side reactions,limiting the depth of discharge(DOD)of the foil electrode ***,a low-temperature replacement reaction is utilized to in-situ construct a three-dimensional(3D)corrosion-resistant interface for deeply rechargeable Zn foil ***,the deliberate low-temperature environment controlled the replacement rate between polycrystalline Zn metal and oxalic acid,producing a Zn foil electrode with distinct 3D corrosion-resistant interface(3DCI-Zn),which differed from conventional two-dimensional(2D)protective structure and showed an order of magnitude higher surface ***,the 3DCI-Zn electrode exhibited dendrite-free and anticorrosion properties,and achieved stable plating/stripping performance for 1000 h at 10 mA cm^(-2)and 10 mAh cm^(-2)with a remarkable DOD of 79%.After pairing with a MnO2cathode with a high areal capacity of 4.2 mAh cm^(-2),the pouch cells delivered 168 Wh L^(-1)and a capacity retention of 89.7%after 100 cycles with a low negative/positive(N/P)ratio of 3:1.

关键词： Aqueous batteries Foil electrodes depth of discharge Dendrites Corrosion side reactions

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Multi-objective Chance-constrained Optimal Day-ahead Scheduling Considering BESS Degradation

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CSEE Journal of Power and Energy Systems 2018年第3期4卷 316-325页

作者： Yan Xu Tianyang Zhao Shuqiang Zhao Jianhua Zhang Yang Wang State Key Laboratory of Alternate Power System with Renewable Energy Resources North China Electric Power UniversityBeijing 102206China Energy Research Institute@Nanyang Technological University(ERI@N) Singapore State Grid Corporation of China Beijing 100031China

As battery technology matures,the battery energy storage system(BESS)becomes a promising candidate for addressing renewable energy *** degradation is one of key factors in BESS operations,which is usually considered in the planning ***,BESS degradations are directly affected by the depth of discharge(DoD),which is closely related to the BESS daily ***,the BESS life losses may be different when providing the same amount of energy under a distinct ***,it is necessary to develop a model to consider the effect of daily discharge on BESS *** this paper,a model quantifying the nonlinear impact of DoD on BESS life loss is *** adopting the chance-constrained goal programming,the degradation in day-ahead unit commitment is formulated as a multi-objective optimization *** facilitate an efficient solution,the model is converted into a mixed integer linear programming *** effectiveness of the proposed method is verified in a modified IEEE 39-bus system.

关键词： BESS degradation chance constraints depth of discharge

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