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Frontiers of Chemical Science and Engineering 2018年第3期12卷 339-345页

作者： Huaping Zhao Long Liu Yaoguo Fang Ranjith Vellacheri Yong Lei Institute of Physics and IMN MacroNano Ilmenau University of Technology Ilmenau 98693 Germany

In this work, nickel nanopore arrays with a highly-oriented nanoporous structure inherited from por- ous alumina membranes were used as nanostructured current collectors for constructing ultrahigh rate solid-state supercapacitors. A thin layer of poly（3,4-ethylenediox- ythiophene）（PEDOT） as electroactive materials was conformally coated onto nickel nanopores to form heterostructured electrodes. The as-prepared electrodes have a large specific surface area to ensure a high capacity, and the highly-oriented nanoporous structure of nickel nanopores reduces the ion transport resistance, allowing the ions in the solid-state electrolytes to quickly access the PEDOT surface during the fast charge-discharge process. As a result, the assembled solid-state supercapacitor in a symmetric configuration exhibits an ideal capacitive behavior and a superior rate capability even at an ultrahigh scan rate of 50 V· s^-1.

关键词： supercapacitor ultrahigh rate metallic nanopore arrays current collectors PEDOT

Laser irradiation of graphite foils as robust current collectors for high-mass loaded electrodes of supercapacitors

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Rare Metals 2022年第12期41卷 4094-4103页

作者： Xi-Tong Sun Yi Wan Bin Wang Qian Xu Xiao-Ling Teng Hai-Yan Liu Yu-Juan Wang Shi-Wei Guo Cheng-Hao Wu Han Hu Ming-Bo Wu State Key Laboratory of Heavy Oil Processing Institute of New EnergyCollege of Chemistry and Chemical EngineeringChina University of Petroleum(East China)Qingdao 266580China School of Chemistry Lancaster University New Energy Division Shandong Energy Group Co.LtdZoucheng 273500China

Conductive substrates with low cost,lightweight,and chemical stability have been highly recognized as alternative current collectors for energy storage *** foil is promising to fulfill these requests,whereas the inert surface chemistry denies its possibility as the carrier with high-mass loading active ***,we report a facile yet efficient laser-mediated strategy to fast regulate graphite foils for robustly loading active *** smooth and hydrophobic graphite foil surface turned to be a rough,super-hydrophilic one containing oxygen-rich clusters after *** reconstructed surface affords anchors for active species,such as nanostruetured MnO_(2),FeOOH,and Fe_(2)O_(3),with the highest loading mass of 20 mg·cm^(-2).The high-mass loading MnO_(2)electrode offers an areal capacitance of 3933 mF·cm^(-2)at 1 mA·cm^(-2).Then,the asymmetric supercapacitor,fabricated by MnO_(2)and Fe_(2)O_(3)deposited laser-irradiated graphite foils,exhibits improved performance with high energy density,large power capability,and long-term *** strategy suggests a reliable way to produce alternative current collectors for robust energy storage devices.

关键词： Laser irradiation Graphite foils High-mass loading current collectors Supercapacitors

Surface-roughened current collectors for anode-free all-solid-state batteries

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Journal of Energy Chemistry 2022年第7期31卷 248-257,I0007页

作者： Donghee Gu Hyoungchul Kim Jong-Ho Lee Sangbaek Park Energy Materials Research Center Korea Institute of Science and Technology(KIST)Seoul 02792.Republic of Korea School of Civil Environmental and Architectural EngineeringKorea University.Seoul 02841.Republic of Korea Division of Nanoscience and Technology University of Science and Technology(UST)Seoul02792.Republicof Korea Department of Materials Science and Engineering Chungnam National UniversityDaejeon 34134.Republic of Korea

Anode-free all-solid-state batteries(AFASSBs), composed of a fully lithiated cathode and a bare current collector(CC) that eliminates excess lithium, can maximize the energy density(because of a compact cell configuration) and improve the safety of solid-state systems. Although significant progress has been made by modifying CCs in liquid-based anode-free batteries, the role of CCs and the mechanism of Li formation on CCs in AFASSBs are still unexplored. Here, we systematically investigate the effect of the surface roughness of the CCs on the Li plating/stripping behavior in AFASSBs. The results show that the moderately roughened CC substantially improves the Coulombic efficiency and cycle stability of AFASSBs owing to the increased contact points between the solid electrolyte and the roughened CC. In contrast, the excessively roughened CC deteriorates the performance owing to the contact ***, an ex situ interface analysis reveals that the roughened surface of the CC could suppress the interfacial degradation during the Li ion extraction from a sulfide solid electrolyte to a CC. This provides an indication to the origin that hinders the electrochemical performance of AFASSBs. These findings show the potential for the application of surface-engineered CCs in AFASSBs and provide guidelines for designing advanced CCs.

关键词： Anode-free Solid-state batteries current collectors Surface roughness Li formation

Status and Opportunities of Zinc Ion Hybrid Capacitors: Focus on Carbon Materials, current collectors, and Separators

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Nano-Micro Letters 2023年第6期15卷 73-111页

作者： Yanyan Wang Shirong Sun Xiaoliang Wu Hanfeng Liang Wenli Zhang College of Chemistry Chemical Engineering and Resource UtilizationNortheast Forestry University26 Hexing RoadHarbin 150040People’s Republic of China Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light IndustryGuangdong University of Technology(GDUT)100 Waihuan Xi RoadPanyu DistrictGuangzhou 510006People’s Republic of China State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005People’s Republic of China Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory(Rongjiang Laboratory) Jieyang 515200People’s Republic of China School of Advanced Manufacturing Guangdong University of Technology(GDUT)Jieyang 522000People’s Republic of China

Zinc ion hybrid capacitors(ZIHCs), which integrate the features of the high power of supercapacitors and the high energy of zinc ion batteries, are promising competitors in future electrochemical energy storage applications. Carbon-based materials are deemed the competitive candidates for cathodes of ZIHC due to their cost-effectiveness, high electronic conductivity, chemical inertness, controllable surface states, and tunable pore architectures. In recent years, great research efforts have been devoted to further improving the energy density and cycling stability of ZIHCs. Reasonable modification and optimization of carbon-based materials offer a remedy for these challenges. In this review, the structural design, and electrochemical properties of carbon-based cathode materials with different dimensions, as well as the selection of compatible, robust current collectors and separators for ZIHCs are discussed. The challenges and prospects of ZIHCs are showcased to guide the innovative development of carbon-based cathode materials and the development of novel ZIHCs.

关键词： Zinc ion hybrid capacitors Carbon materials Carbon cathode current collectors Separators

Recent Advances in Structural Optimization and Surface Modification on current collectors for High‑Performance Zinc Anode:Principles,Strategies,and Challenges

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Nano-Micro Letters 2023年第11期15卷 317-348页

作者： Yuxin Gong Bo Wang Huaizheng Ren Deyu Li Dianlong Wang Huakun Liu Shixue Dou MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage State Key Laboratory of Urban Water Resource and EnvironmentSchool of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangPeople’s Republic of China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071People’s Republic of China Institute of Energy Material Science University of Shanghai for Science and TechnologyShanghai 200093People’s Republic of China

The last several years have witnessed the prosperous development of zinc-ion batteries(ZIBs),which are considered as a promising competitor of energy storage systems thanks to their low cost and high ***,the reversibility and availability of this system are blighted by problems such as uncontrollable dendritic growth,hydrogen evolution,and corrosion passivation on anode side.A functionally and structurally well-designed anode current collectors(CCs)is believed as a viable solution for those problems,with a lack of summarization according to its working ***,this review focuses on the challenges of zinc anode and the mechanisms of modified anode CCs,which can be divided into zincophilic modification,structural design,and steering the preferred crystal facet *** possible prospects and directions on zinc anode research and design are proposed at the end to hopefully promote the practical application of ZIBs.

关键词： Zinc anodes current collectors Surface modification Structural design Crystal facet orientation

Recent Advances in Carbon-Based current Col lectors/Hosts for Alkali Metal Anodes

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Energy & Environmental Materials 2023年第5期6卷 112-141页

作者： Guanyao Wang Chan Song Jiaqi Huang Ho Seok Park School of Chemical Engineering Sungkyunkwan University2066SeoburoJangan-guSuwon 440-746Korea School of Chemistry and Molecular Engineering Nanjing Tech UniversityNanjing 211816China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Department of Health Sciences and Technology Samsung Advanced Institute for Health Sciences and Technology(SAIHST)Sungkyunkwan University2066SeoburoJangan-guSuwon 440-746Korea SKKU Advanced Institute of Nano Technology(SAINT) Sungkyunkwan University2066SeoburoJangan-guSuwon 440-746Korea

The urgent demand for high-energy-density storage systems evokes the research upsurge on the alkali metal batteries with high theoretical ***,the utilization of alkali metal anodes,including Li,Na,and K,is significantly hindered by notorious dendrite growth,undesirable corrosion,and unstable solid electrolyte *** order to resolve these issues,the carbon materials for the rational design of current collector/host that can regulate the plating/stripping behavior of alkali metal have been *** carbon-based current collectors/hosts are featured with many pivotal advantages,including mechanical integrity to accommodate the volume change,superior electronic/ionic conductivity,large available surface area,and rich functionalization chemistries to increase the affinity to alkali *** this review,the recent progress on various dimensional carbon-based current collectors/hosts with different chemical components in stabilizing the alkali metal anodes through the regulation of initial deposition and subsequent growth behavior during plating/stripping process is *** nanostructured carbon scaffolds with self-affinity to alkali metals,as well as the carbon frameworks with internal/external affinitive sites to alkali metals,catalogued by various dimensions,are discussed in this ***,these appealing strategies based on the carbon-based current collectors/hosts can provide a paradigm for the realization of high-energy-density alkali metal batteries.

关键词： carbon-based materials current collectors energy density hosts metal anodes

Ag-integrated mixed metallic Co-Fe-Ni-Mn hydroxide composite as advanced electrode for high-performance hybrid supercapacitors

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Journal of Energy Chemistry 2024年第1期88卷 579-591,I0013页

作者： Anki Reddy Mule Bhimanaboina Ramulu Shaik Junied Arbaz Anand Kurakula Jae Su Yu Department of Electronics and Information Convergence Engineering Institute for Wearable Convergence ElectronicsKyung Hee UniversityYongin-siGyeonggi-do 17104Republic of Korea

Direct growth of redox-active noble metals and rational design of multifunctional electrochemical active materials play crucial roles in developing novel electrode materials for energy storage *** this regard,silver(Ag)has attracted great attention in the design of efficient *** by the house/building process,which means electing the right land,it lays a strong foundation and building essential columns for a complex ***,we report the construction of multifaceted heterostructure cobalt-iron hydroxide(CFOH)nanowires(NWs)@nickel cobalt manganese hydroxides and/or hydrate(NCMOH)nanosheets(NSs)on the Ag-deposited nickel foam and carbon cloth(i.e.,Ag/NF and Ag/CC)***,the formation and charge storage mechanism of Ag are described,and these contribute to good conductive and redox chemistry *** switching architectural integrity of metal and redox materials on metallic frames may significantly boost charge storage and rate performance with noticeable drop in *** as-fabricated Ag@CFOH@NCMOH/NF electrode delivered superior areal capacity value of 2081.9μA h cm^(-2)at 5 mA cm^(-2).Moreover,as-assembled hybrid cell based on NF(HC/NF)device exhibited remarkable areal capacity value of 1.82 mA h cm^(-2)at 5 mA cm^(-2)with excellent rate capability of 74.77%even at 70 mA cm^(-2)Furthermore,HC/NF device achieved maximum energy and power densities of 1.39 mW h cm^(-2)and 42.35 mW cm^(-2),*** verify practical applicability,both devices were also tested to serve as a self-charging station for various portable electronic devices.

关键词： current collectors Redox-active silver Transition metal-hydroxides Electrochemical performance Hybrid supercapacitor

Li-current collector interface in lithium metal batteries

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Nano Research 2024年第10期17卷 8706-8728页

作者： Tian-Yu Wang Dingyi Zhao Keyue Liang Yuzhang Li Department of Chemical and Biomolecular Engineering University of CaliforniaLos AngelesLos AngelesCalifornia 90095USA

Interfaces within batteries,such as the widely studied solid electrolyte interface(SEI),profoundly influence battery *** these interfaces,the solid-solid interface between electrode materials and current collectors is crucial to battery performance but has received less discussion and *** review highlights the latest research advancements on the solid-solid interface between lithium metal(the next-generation anode)and current collectors(typically copper),focusing on factors affecting the Li-current collector interface and improvement strategies from perspectives of current collector substrate(lithiophilicity,crystal facets,mechanical properties,and topological structure),electrolyte chemistry,current density,stacking pressure,SEI,electric field and temperature,and provides a future directions and opportunities on this topic.

关键词： lithium metal anode current collectors Li-current collector interface solid-solid interface improvement strategies

Lithiophilic Cu-Li_(2)O matrix on a Cu Collector to Stabilize Lithium Deposition for Lithium Metal Batteries

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Energy & Environmental Materials 2022年第4期5卷 1270-1277页

作者： Zhe Gong Cheng Lian Pengfei Wang Kai Huang Kai Zhu Ke Ye Jun Yan Guiling Wang Dianxue Cao Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education College of Materials Science and Chemical EngineeringHarbin Engineering UniversityHarbin 150001China State Key Laboratory of Chemical Engineering School of Chemical EngineeringEast China University of Science and TechnologyShanghai 200237China

Lithium metal anode is the most ideal candidate for next-generation energy storage ***,the uncontrolled dendrite growth,infinite volume expansion,and undesired side reactions lead to serious safety issues and hinder their potential ***,a pre-lithiation strategy is proposed to construct a high-lithiophilic Cu-Li_(2)O matrix on commercial Cu *** in situ-generated Li_(2)O promises adequate nucleation sites and strengthens solid electrolyte interphase and lateral lithium ***,the existence of 3D matrix reduces the local current *** synergy effect of Li_(2)O and Cu suppresses the growth of lithium *** a result,Cu-Li_(2)O matrix reveals an enhanced lithium plating/stripping behavior with Coulombic efficiency of 98.46%after 270 *** symmetrical cell assembled by Li-plated electrodes displays a prolonged lifespan of 1400 *** work demonstrates a scalable and effective approach for modified current collectors toward stable Li metal anode.

关键词： Cu-Li_(2)O matrix current collectors Li metal anodes SEI film

Improving the cycling stability of lithium metal anodes using Cu_(3)N-modified Cu foil as a current collector

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Science China Materials 2022年第9期65卷 2385-2392页

作者： Danlei Tang Lixia Yuan Yaqi Liao Wenxuan Jin Jie Chen Zexiao Cheng Xiang Li Bin He Zhen Li Yunhui Huang State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China

Lithium(Li)metal anodes have the potential to stimulate the development of secondary batteries due to their high theoretical specific capacities and low redox potentials among all possible solid secondary anode ***,the growth of Li dendrites during repeated Li stripping/plating processes leads to low coulombic efficiencies(CEs)and safety hazards,which significantly hinders their practical *** this work,commercial Cu foil was modified in situ by Cu_(3)N nanowires(Cu_(3)N NWs/Cu)and used as the current collector for a Li *** addition to decreasing the true current density of the anode and alleviating the volume change during the cycles,Cu_(3)N reacted with Li during the initial cycle(3Li+Cu_(3)N→Li_(3)N+3Cu),which enabled the formation of a Li_(3)N-rich solid electrolyte interphase(SEI).This Li_(3)N-rich SEI with a high ionic conductivity not only boosted Li ion transport but also promoted the homogeneous deposition of Li via increased Li nucleation *** improvements in both mass transport and deposition dynamics restrained dendrite *** a result,the Cu_(3)N NWs/Cu anode had stable Li plating/stripping over 270 cycles with a high average CE of 98.6% at 1 mA cm^(-2),with Li capacities of 1 mA h cm^(-2).A long cycling lifespan of 430 cycles was achieved using a full cell with a high-load LiFePO_(4) cathode(mass loading:10 mg cm^(-2))and a Cu_(3)N NWs/Cu-Li anode(N/P=2.35),demonstrating the effectiveness and practicality of the Cu_(3)N NWs/Cu current collector in stabilizing the Li anode.

关键词： Cu_(3)N nanowires current collectors lithium anode lithium metal batteries