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Cu nanowire array with designed interphases enabling high performance Si anode toward flexible lithium-ion battery

Nano Research 2024年第3期17卷 1516-1524页

作者： Pengfei Su Ziqi Zhang Linshan Luo Zhiyong Zhang Chaofei Lan Yahui Li Shaowen Xu Shanpeng Pei Guangyang Lin Cheng Li Xiang Han Wei Huang Songyan Chen Fujian Provincial Key Laboratory of Semico.ductors and Applications Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient DevicesDepartment of PhysicsXiamen UniversityXiamen 361005China co.lege of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037China Science and technology on Analog Integrated Circuit Laboratory Chongqing 400060China Shandong Electric Power Engineering co.sulting Institute co. Ltd.Jinan 250013China

To meet the growing demand for wearable smart electronic devices,the development of flexible lithium-ion batteries(LIBs)is *** is an ideal candidate for the anode material of flexible lithium-ion batteries due to its high specific capacity,low working potential,and earth *** largest challenge in developing a flexible silico. anode is how to maintain structural integrity and ensure stable electrochemical reactions during external *** this work,we propose a novel design for fabricating co.e–shell electrodes based on a co.per nanowire(CuNW)array co.e and magnetron sputtered Si/C *** nanowire array structure has characteristics of bending under longitudinal stress and twisting under transverse stress,which helps to maintain the mechanical stability of the structure during electrode bending and *** low-temperature annealing generates a small amount of Cu3Si alloy,which enhances the co.nection strength between Si and the co.ductive network and solves the poor co.ductivity problem of Si,which is known as a semico.ductor *** unique co.figuration design of CuNW@Si@C-400℃ leads to stable long cycle performance of 1109 mAh∙g^(-1) after 1000 cycles and excellent rate performance of 500 mAh∙g^(-1) at a current density of 10 A∙g^(-1).Furthermore,the CuNW@Si@C-400℃||LiFePO_(4)(LFP)full battery demonstrates excellent flexibility,with a capacity retention of more than 96%after 100 *** study provides a promising strategy for the development of flexible lithium-ion batteries.

关键词： flexible lithium-ion battery silico. anode magnetron sputtering co.e–shell electrode Cu nanowire array

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Nano-Au-deco.ated hierarchical porous co.alt sulfide derived from ZIF-67 toward optimized oxygen evolution catalysis:Important roles of microstructures and electronic modulation

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Carbon Energy 2024年第5期6卷 1-14页

作者： Hongyu Gong Guanliang Sun Wenhua Shi Dongwei Li Xiangjun Zheng Huan Shi Xiu Liang Ruizhi Yang Changzhou Yuan Department of New Energy Materials School of Environmental and Chemical EngineeringJiangsu University of Science and TechnologyZhenjiangJiangsuChina Advanced Materials Institute Qilu University of Technology(Shandong Academy of Sciences)JinanShandongChina Shandong Saikesaisi Hydrogen Energy co. Ltd.JinanShandongChina Department of Materials Science and Engineering School of Materials Science&EngineeringUniversity of JinanJinanShandongChina Department of New Energy Science and Engineering College of EnergySoochow Institute for Energy and Materials InnovationsSoochow UniversitySuzhouJiangsuChina

Enhancing both the number of active sites available and the intrinsic activity of co.based electrocatalysts simultaneously is a desirable ***,a ZIF-67-derived hierarchical porous co.alt sulfide deco.ated by Au nanoparticles(NPs)(denoted as HP-Au@co.Sy@ZIF-67)hybrid is synthesized by low-temperature sulfuration *** well-defined macroporous-mesoporous-microporous structure is obtained based on the co.bination of polystyrene spheres,as-formed co.Sy nanosheets,and ZIF-67 *** novel three-dimensional hierarchical structure significantly enlarges the three-phase interfaces,accelerating the mass transfer and exposing the active centers for oxygen evolution *** electronic structure of co.is modulated by Au through charge transfer,and a series of experiments,together with theoretical analysis,is performed to ascertain the electronic modulation of co.by ***,HP-Au@co.Sy@ZIF-67 catalysts with different amounts of Au were synthesized,wherein Au and NaBH4 reductant result in an interesting“co.petition effect”to regulate the relative ratio of co.(2+)/co.(3+),and moderate Au assists the electrochemical performance to reach the highest ***,the optimized HP-Au@co.Sy@ZIF-67 exhibits a low overpotential of 340 mV at 10 mA cm^(-2)and a Tafel slope of 42 mV dec-1 for OER in 0.1 M aqueous KOH,enabling efficient water splitting and Zn-air battery *** work here highlights the pivotal roles of both microstructural and electronic modulation in enhancing electrocatalytic activity and presents a feasible strategy for designing and optimizing advanced electrocatalysts.

关键词： Au nanoparticles co.alt sulfide electronic modulation hierarchical porous structure oxygen evolution reaction

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合理设计多电子转移机制实现更好的水系锌-有机电池

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Science China Materials 2024年第5期67卷 1367-1378页

作者： Kovan Khasraw Abdalla 王越洋 Kozhi Khasraw Abdalla 熊嘉伟李琦王斌孙晓明赵逸 State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical TechnologyBeijing100029China Department of Biomedical Science Komar University of Science and TechnologySulaimaniyahIraq co.lege of Education University of GeorgiaAthensGA30605USA Minmetals Exploration&Development co. LTDBeijing100010China Advanced technology Research Institute Beijing Institute of TechnologyJinan250300China

由于环境相容性好、分子结构可定制和有机物资源丰富等优势,水系锌-有机物电池(AZOBs)成为构建新一代大规模储能系统的关键技术.然而,电导率差、有机物溶解和单一活性基团等问题严重限制了有机物正极材料的倍率性能、稳定性和比容量.因... 详细信息

由于环境相容性好、分子结构可定制和有机物资源丰富等优势,水系锌-有机物电池(AZOBs)成为构建新一代大规模储能系统的关键技术.然而,电导率差、有机物溶解和单一活性基团等问题严重限制了有机物正极材料的倍率性能、稳定性和比容量.因此,具备多氧化还原中心和稳定骨架的有机物正极材料对于实现高性能有机物正极材料至关重要.这些多官能团有机物可协同作用并激发基于多电子转移的氧化还原反应,进而促进H^(+)/Zn^(2+)共嵌以显著提升电池性能.本文探索了多官能团有机物电极的分子结构与其氧化还原反应机理之间的构效关系.本文综述了多官能团有机正极材料在提高氧化还原电位、比容量、动力学以及稳定性等方面面临的挑战和解决策略,为进一步开发先进AZOBs的关键正极材料提供了重要基础.

关键词： aqueous zinc organic battery multifunctional organic cathodes energy storage mechanism molecular structure optimization high performance

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Research on Scheduling Strategy of Flexible Interco.nection Distribution Network co.sidering Distributed Photovoltaic and Hydrogen Energy Storage

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Energy Engineering 2024年第5期121卷 1263-1289页

作者： Yang Li Jianjun Zhao Xiaolong Yang He Wang Yuyan Wang co.lege of Electrical Engineering Northeast Electric Power UniversityJilin132011China Smart Distribution Network Center State Grid Jibei Electric Power Co.Ltd.Qinhuangdao066000China

Distributed photovoltaic(PV)is one of the important power sources for building a new power system with new energy as the main *** rapid development of distributed PV has brought new challenges to the operation of distribution *** order to improve the absorption ability of large-scale distributed PV access to the distribution network,the AC/DC hybrid distribution network is co.structed based on flexible interco.nection technology,and a co.rdinated scheduling strategy model of hydrogen energy storage(HS)and distributed PV is ***,the mathematical model of distributed PV and HS system is established,and a co.prehensive energy storage system co.bining seasonal hydrogen energy storage(SHS)and battery(BT)is ***,a flexible interco.nected distribution network scheduling optimization model is established to minimize the total active power loss,voltage deviation and system operating ***,simulation analysis is carried out on the improved IEEE33 node,the NSGA-II algorithm is used to solve specific examples,and the optimal scheduling results of the co.prehensive eco.omy and power quality of the distribution network are *** with the method that does not co.sider HS and flexible interco.nection technology,the network loss and voltage deviation of this method are lower,and the total system co.t can be reduced by 3.55%,which verifies the effectiveness of the proposed method.

关键词： Seasonal hydrogen storage flexible interco.nection AC/DC distribution network photovoltaic absorption scheduling strategy

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Urea-induced interfacial engineering enabling highly reversible aqueous zinc-ion battery

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Rare Metals 2024年第4期43卷 1599-1609页

作者： Bin-Rui Xu Quan-An Li Yong Liu Guang-Bin Wang Zi-He Zhang Feng-Zhang Ren School of Material Science and Engineering Henan University of Science and TechnologyLuoyang471023China School of Information Engineering Henan University of Science and TechnologyLuoyang471023China Longmen Laboratory Luoyang471023China Provincial and Ministerial co.co.struction of co.laborative Innovation Center for Non-Ferrous Metal New Materials and Advanced Processing technology Luoyang471023China

Aqueous zinc-ion batteries(AZIBs)have been regarded as prospective rechargeable energy storage devices because of the high theoretical capacity and low redox potential of Zn ***,the unco.trollable formation of dendrites and the water-induced side reactions at the Zn/electrolyte interface,and the poor reversibility under a high current density(>2 mA·cm^(-2))and large area capacity(>2 mAh·cm^(-2))still limit the practical applications of ***,a strategy that can overco.e these difficulties is urgently ***,we introduce an environmentally friendly and low-co.t additive,namely urea,to the electrolyte of AZIBs to induce uniform Zn deposition and suppress the side *** of the adsorption behavior,electrochemical characterization,and observations of the morphology revealed the interfacial modification induced by urea on the Zn/electrolyte interface,demonstrating its huge potential in ***,the long-term cycling stability(over2100 h)of a Zn/Zn symmetric cell under a high current density of 5 mA·cm^(-2)and a capacity of 5 mAh·cm^(-2)was achieved with a 1 mol·L^(-1)ZnSO_(4)electrolyte with the urea ***,the assembled Zn/NH_4V_4O_(10)full cell with urea exhibited excellent cycling performance and an outstanding average co.lombic efficiency of 99.98%.These results indicate that this is a low-co.t and effective additive strategy for realizing highly reversible AZIBs.

关键词： Zn anode Urea additive Interface engineering Dendrite growth Side reaction

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Fluorophosphates and fluorosulfates cathode materials: Progress towards high energy density sodium-ion battery

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Nano Research 2024年第3期17卷 1427-1440页

作者： Mohammed Hadouchi Jingrong Hou Toshinari Koketsu Abdelilah Lahmar Jiwei Ma Laboratoire de Chimie Appliquée des Matériaux Centre des Sciences des MatériauxFaculty of ScienceMohammed V University in RabatAvenue Ibn BattoutaBP 1014RabatMorocco Shanghai Key Laboratory for R&D and Application of Metallic Functional Materials Institute of New Energy for VehiclesSchool of Materials Science and EngineeringTongji UniversityShanghai 201804China battery Materials Development Section Business Creation Sector R&D CenterMitsui Mining&Smelting Co.Ltd.362-0021 SaitamaJapan Laboratoiry of co.densed Matter Physics University of Picardie Jules Verne33 Rue Saint-Leu 80039AmiensFrance

The rapid diffusion of renewable energy boosts the wide deployment of large-scale energy storage *** the low co.t and high crustal abundance,sodium-ion battery(SIB)technology is expected to beco.e a dominant technology in that area in the *** the practical application,novel cathode materials are urged to develop that show high energy density without sacrificing their co.t and benignity to the *** the years of many studies,this still remains a huge challenge to battery *** this review,we discuss recent breakthroughs in SIB cathode materials with high energy density,namely fluorphosphates and *** design of materials,the crystal structure,the electrochemical performance,and the underlaying intercalation mechanism are systematically *** strategies and research directions are also provided to advance future high-energy,low-co.t,and eco.riendly cathode materials for next generation SIB.

关键词： fluorophosphates fluorosulfates crystal structure intercalation mechanism high energy density sodium-ion battery

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Heterostructured nickel-co.alt metal alloy and metal oxide nanoparticles as a polysulfide mediator for stable lithium-sulfur full batteries with lean electrolyte

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Carbon Energy 2024年第7期6卷 163-177页

作者： Hyeona Park Suyeong Lee Hyerim Kim Hyunyoung Park Hun Kim Jongsoon Kim Marco.Agostini Yang-Kook Sun Jang-Yeon Hwang Department of Energy Engineering Hanyang UniversitySeoulRepublic of Korea LG Energy Solution LtdCTOLG Science ParkSeoulRepublic of Korea Department of Energy Science Sungkyunkwan UniversitySuwonRepublic of Korea SKKU Institute of Energy Science and technology(SIEST) Sungkyunkwan UniversitySuwonRepublic of Korea Dipartimento di Chimica e Tecnologia del Farmaco Universitàdi Roma La SapienzaRomaItaly Department of battery Engineering Hanyang UniversitySeoulRepublic of Korea

Batteries that utilize low-co.t elemental sulfur and light metallic lithium as electrodes have great potential in achieving high energy ***,building a lithium-sulfur(Li-S)full battery by co.trolling the electrolyte volume generally produces low practical energy because of the limited electrochemical Li-S ***,the high energy/high performance of a Li-S full battery with practical sulfur loading and minimum electrolyte volume is reported.A unique hybrid architecture co.figured with Ni-co.metal alloy(Nico.and metal oxide(Nico._(2))nanoparticles heterogeneously anchored in carbon nanotube-embedded selfstanding carbon matrix is fabricated as a host for *** work demonstrates the co.siderable improvement that the hybrid structure's high co.ductivity and satisfactory porosity promote the transport of electrons and lithium ions in Li-S *** experimental and theoretical validations,the function of Nico.and Nico._(2) nanoparticles as an efficient polysulfide mediator is *** particles afford polysulfide anchoring and catalytic sites for Li-S redox reaction,thus improving the redox co.version *** at high sulfur loading,the nanostructured Ni-co.metal alloy and metal oxide enable to have stable cycling performance under lean electrolyte co.ditions both in half-cell and full-cell batteries using a graphite anode.

关键词： full cell high energy lean electrolyte Li-S batteries polysulfide mediator

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In-situ co.ting and surface partial protonation co.promoting performance of single-crystal nickel-rich cathode in all-solid-state batteries

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Journal of Energy Chemistry 2024年第2期89卷 137-143,I0005页

作者： Maoyi Yi Jie Li Mengran Wang Xinming Fan Bo Hong Zhian Zhang Aonan Wang Yanqing Lai School of Metallurgy and Environment Central South UniversityChangsha 410083HunanChina Engineering Research Centre of Advanced battery Materials The Ministry of EducationChangsha 410083HunanChina Hunan Province Key Laboratory of Nonferrous Value-Added Metallurgy Central South UniversityChangsha 410083HunanChina

The poor electrochemical performance of all-solid-state batteries(ASSBs),which is assemblied by Ni-rich cathode and poly(ethylene oxide)(PEO)-based electrolytes,can be attributed to unstable cathodic interface and poor crystal structure stability of Ni-rich *** co.ting strategies are previously employed to enhance the stability of the cathodic interface and crystal structure for Ni-rich ***,these methods can hardly achieve simplicity and high efficiency *** this work,polyacrylic acid(PAA)replaced traditional PVDF as a binder for cathode,which can achieve a uniform PAA-Li(LixPAA(0co.ting layer on the surface of single-crystal LiNi_(0.83)co.(0.12)Mn_(0.05)O_(2)(SC-NCM83)due to H^(+)/Li^(+)exchange reaction during the initial charging-discharging *** formation of PAA-Li co.ting layer on cathode can promote interfacial Li^(+)transport and enhance the stability of the cathodic ***,the partially-protonated surface of SC-NCM83 casued by H^(+)/Li^(+)exchange reaction can restrict Ni ions transport to enhance the crystal structure *** proposed SC-NCM83-PAA exhibits superior cycling performance with a retention of 92%co.pared with that(57.3%)of SC-NCM83-polyvinylidene difluoride(PVDF)after 200 *** work provides a practical strategy to co.struct high-performance cathodes for ASSBs.

关键词： Single-crystal LiNi_(0.83)co.(0.12)Mn_(0.05)O_(2) In-situ co.ting PAA-Li Partial protonation

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Effect of transformation pH on performance of nano-scale β-Ni(OH)_2

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中国有色金属学会会刊：英文版 2007年第3期17卷 558-563页

作者：赵力王守军盛军韩喜江 Department of Applied Chemistry Harbin Institute of Technology Department of Product DLG Battery (Shenzhen) Co. Ltd

The influence of transformation pH value on the performance of nano-scale Ni(OH)2 was analyzed. The measurement results of XRD and TEM indicate that the samples are co.posed of β-Ni(OH)2 with crystal size of 20-50 nm, and the crystal lattice parameters of nano-scale Ni(OH)2 prepared at different transformation pH values are different. With the increase of transformation pH value, the agglomeration of nano-scale Ni(OH)2 beco.es obvious. Cyclic voltammograms(CV) and electrochemical impedance spectrosco.y(EIS) measurement results show that transformation pH value affects the proton diffusion co.fficient(D) and charge-transfer resistance(Rct) of the material. The specific capacity is up to 327.8 mA·h/g, and the discharge performance of electrodes depends on both D and Rct, so the kinetic characteristics that electrodes reaction is co.trolled by both mass-transfer step and charge-transfer step was put forward.

关键词：纳米材料氢氧化镍生产性能电极电池能量转换

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水系合成δ相甲脒铅碘钙钛矿粉末

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Science China Materials 2024年第5期67卷 1621-1630页

作者：潘逸宁王镛皓邓明欣曾强李林鸿廖响张茗珺王伟谢锋刘芳洋 School of Metallurgy and Environment Central South UniversityChangsha410083China School of Naval Architecture Ocean and Energy Power EngineeringWuhan University of TechnologyWuhan430070China Department of Research and Development Zhejiang Yitai Technology Co.Ltd.Changsha410205China Advanced battery Materials Engineering Research Center of the Ministry of Education Changsha410083China School of Metallurgy Northeastern UniversityShenyang110819China National Energy Metal Resources and New Materials Key Laboratory Changsha410083China

近年来,甲脒基钙钛矿太阳能电池的光电转换效率取得了显著进展,其商业化前景日益明朗.随着钙钛矿电池商业化的快速发展,对于环境友好、成本低廉的钙钛矿前驱体的需求不断增长.甲脒铅碘钙钛矿材料遇水易分解,因此传统钙钛矿粉末合成方法... 详细信息

近年来,甲脒基钙钛矿太阳能电池的光电转换效率取得了显著进展,其商业化前景日益明朗.随着钙钛矿电池商业化的快速发展,对于环境友好、成本低廉的钙钛矿前驱体的需求不断增长.甲脒铅碘钙钛矿材料遇水易分解,因此传统钙钛矿粉末合成方法依赖于有机溶剂和惰性气氛手套箱,不具备成本优势.在此背景下,本文提出了一种经济高效的水系合成高纯度δ相甲脒铅碘(δ-FAPbI_(3))粉末的策略.在水溶液中加入过量氢碘酸,碘离子可使不溶性PbI_(2)转化为可溶性[PbI_(2)+n]n-络合物,将FAPbI_(3)的遇水分解转化为溶解,从而使水系合成成为可能.水系合成的甲脒铅碘粉末具有高纯度、低成本优势,可作为钙钛矿薄膜前驱体材料.与以PbI_(2)和FAI的混合物作为前驱体制备的钙钛矿薄膜相比,以水系合成的δ-FAPbI_(3)粉末为前驱体制备的钙钛矿薄膜具有良好的结晶性,降低了缺陷密度,并有效抑制了有害的离子输运和降解过程,从而增强了载流子传输性能和电池稳定性.在环境空气中以合成粉末为前驱体制备的钙钛矿太阳能电池,最高转化效率可达23.24%.

关键词： perovskite microcrystal powder aqueous synthesis perovskite solar cells

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