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regulating zinc ion transport behavior and solvated structure towards stable aqueous Zn metal batteries

Journal of Energy Chemistry 2024年第6期93卷 609-626,I0015页

作者： Qiang Ma Aoen Ma Shanguang Lv Bowen Qin Yali Xu Xianxiang Zeng wei Ling Yuan liu Xiongwei Wu College of Materials engineering Henan International Joint Laboratory of Rare Earth Composite MaterialsHenan University of EngineeringZhengzhou 451191HenanChina Nanozyme Medical Center School of Basic Medical SciencesZhengzhou UniversityZhengzhou 450001HenanChina school of Chemistry and Materials Science Hunan Agricultural UniversityChangsha 410125HunanChina College of electrical and Information engineering Hunan UniversityChangsha 410082HunanChina Hunan province Yin Feng New Energy Co.Ltd. Changsha 410019HunanChina

Aqueous Zn metal batteries(AZMBs)with intrinsic safety,high energy density and low cost have been regarded as promising electrochemical energy storage ***,the parasitic reaction on metallic Zn anode and the incompatibility between electrode and electrolytes lead to the deterioration of electrochemical performance of AZMBs during the *** critical point to achieve the stable cycling of AZMBs is to properly regulate the zinc ion solvated structure and transfer behavior between metallic Zn anode and *** recent years,numerous achievements have been made to resolve the formation of Zn dendrite and interface incompatible issues faced by AZMBs via optimizing the sheath structure and transport capability of zinc ions at electrode-electrolyte *** this review,the challenges for metallic Zn anode and electrode-electrolyte interface in AZMBs including dendrite formation and interface characteristics are *** the influences of different strategies involving designing advanced electrode structu re,artificial solid electrolyte interphase(SEI)on Zn anode and electrolyte engineering to regulate zinc ion solvated sheath structure and transport behavior are summarized and ***,the perspectives for the future development of design strategies for dendrite-free Zn metal anode and long lifespan AZMBs are also given.

关键词： aqueous Zn metal batteries Zn metal anode Transport behavior Solvated structure Dendrite-free

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Highly Integrated perovskite Solar Cells-Based photorechargeable System with Excellent photoelectric Conversion and Energy Storage Ability

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Energy & Environmental Materials 2024年第5期7卷 336-344页

作者： Jinxin Bi Shaoyin Li Dongtao liu Bowei Li Kai Yang Ming Xu Chaopeng Fu Yunlong Zhao wei Zhang Advanced Technology Institute University of Surrey school of Materials Science and engineering Shanghai Jiao Tong University Dyson school of Design engineering Imperial College London National physical Laboratory

perovskite solar cells have emerged as a promising technology for renewable energy generation. However, the successful integration of perovskite solar cells with energy storage devices to establish high-efficiency and long-term stable photorechargeable systems remains a persistent challenge. Issues such as electrical mismatch and restricted integration levels contribute to elevated internal resistance, leading to suboptimal overall efficiency (ηoverall) within photorechargeable systems. Additionally, the compatibility of perovskite solar cells with electrolytes from energy storage devices poses another significant concern regarding their stability. To address these limitations, we demonstrate a highly integrated photorechargeable system that combines perovskite solar cells with a solid-state zinc-ion hybrid capacitor using a streamlined process. Our study employs a novel ultraviolet-cured ionogel electrolyte to prevent moisture-induced degradation of the perovskite layer in integrated photorechargeable system, enabling perovskite solar cells to achieve maximum power conversion efficiencies and facilitating the monolithic design of the system with minimal energy loss. By precisely matching voltages between the two modules and leveraging the superior energy storage efficiency, our integrated photorechargeable system achieves a remarkable ηoverallof 10.01%while maintaining excellent cycling stability.

关键词： ionogel electrolyte perovskite solar cells photorechargeable system self-powered electronics zinc-ion hybrid capacitor

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renewable conversion of coal gangue to 13-X molecular sieve for Cd^(2.)-containing wastewater adsorption performance

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rare Metals 2024年第2期43卷 702-710页

作者： Le Kang Si-Fan liu Da-wei Yi Kai Wang Hui-Ling Du Hao-Qi Huang peng Chen College of Materials Science and engineering Xi’an University of Science and TechnologyXi’an710054China school of electrical {2. Weihai Innovation Research InstituteQingdao UniversityQingdao266000China school of Metallurgy Northeastern UniversityShenyang110819China school of Materials and Chemical engineering Tongren UniversityTongren554300China

Using coal gangue(CG)as raw material,a new type of all solid-waste-based 13-X molecular sieve material was controllably prepared by alkali fusion-hydrothermal *** synthetic molecular sieve was used as a solid adsorbent to treat Cd^(2.)-containing wastewater,and its adsorption behavior on Cd^(2.)in aqueous solution was studied and *** microstructure and morphology of the molecular sieve were investigated by X-ray diffraction(XrD),field emission scanning electron microscopy(FESEM)and specific surface area *** results show that the synthesized 13-X molecular sieve has higher Brunauer–Emmett–Teller(BET)specific surface area with higher crystallinity and higher adsorption capacity for the heavy metal Cd^(2.).The adsorption process of Cd^(2.)by molecular sieve conforms to the Langmuir isotherm adsorption equation and Lagergren pseudo-second-order rate *** with thermodynamic calculation,it can be concluded that the adsorption process is physically monolayer,spontaneous and *** this study,a low-cost and naturally available synthesis method of 13-X molecular sieve is *** with its adsorption mechanism for Cd^(2.),it provides a feasible and general method for removing heavy metal ions from coal gangue and also provides a new way for the utilization of coal gangue with high added value.

关键词： Coal gangue Hydrothermal synthesis 13-X molecular sieve Adsorption Wastewater containing Cd^(2.)

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poly(3-hexylthio) thiophene Field-effect Transistor Device performance: Impact of the Content of Hexylthio Side Chain on Backbone

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Chinese Journal of polymer Science 2024年第1期42卷 14-23,I0005页

作者： Hao-Yu liu Lian-He Han Ling-wei Kong Li-ping Zhu Xiao-Lan Qiao Mei-Fang Zhu State Key Laboratory for Modification of Chemical Fibers and polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China school of Electronic Information and electrical {2. Shanghai Jiao Tong UniversityShanghai 200240China

regioregular poly(3-hexylthio)thiopene(p3HTT) has emerged tremendous potential in organic electronic applications due to the strong noncovalent interactions from the sulfur atom linked to thiophene. However, p3HTT generally exhibits low charge mobility mostly due to poor solution processability attributed to dense arrangement of hexylthio side chain in polymer, which led to strong noncovalent interactions among sulfur atoms. To balance the nonvalent interaction and aggregation for p3HTT, herein, we systematically study the effect of hexylthio side chain content in polymer backbone on the structure and properties. A series of regioregular p3HTT-based homopolymers(p3HTT, p3HTT-50,p3HTT-33 and p3HTT-2.) were prepared via Kumada catalyst transfer polycondensation method from a set of mono-, bi-, ter-and quarterthiophenes containing different contents of hexylthio side chain. The DFT calculation shows the planarity of polymers backbone could be improved through reducing the density of hexylthio side chain in polymer mainchain. And significant changes in their crystallinity, aggregation and optical properties were observed with the content of hexylthio side chain reducing. The p3HTT-33 displayed the highest field-effect transistor hole mobility of 2.83×10^(-2. cm^(2.·V^(-1)·s^(-1) resulting from a balance between the crystallinity and planarity. This study demonstrates modulating the content of hexylthio side chain in p3HTT is an effective strategy to optimize the opto-electronic properties of polymer obtaining excellent semiconductor device performance.

关键词： Conjugated polymer polythiophene Noncovalent interaction Molecular aggregation Organic field-effect transistor

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Si-doped Li_(6)pS_(5)I with enhanced conductivity enables superior performance for all-solid-state lithium batteries

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Chinese Chemical Letters 2024年第10期35卷 479-484页

作者： Liang Ming Dan liu Qiyue Luo Chaochao wei Chen liu Ziling Jiang Zhongkai Wu Lin Li Long Zhang Shijie Cheng Chuang Yu State Key Laboratory of Advanced Electromagnetic engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Scienceand TechnologyWuhan430074China school of Chemistry and Chemical engineering Huazhong University of Science and TechnologyWuhan 430074China State Grid Hubei Electric power research Institute Wuhan 430077China College of physics and Energy Fujian Normal UniversityFuzhou 350117China

Lithium argyrodites Li_(6)pS_(5)X(X=Cl,Br,I)show great potential as solid electrolytes for solid-state lithium batteries due to their high Li-ion conductivities and excellent electrode ***,the relatively low conductivity of Li_(6)pS_(5)I(10^(-6)m S/cm)compared to the other two compositions limits its ***,Si-doped Li_(6.5)p_(0.5)Si_(0.5)S_(5)I electrolyte is designed and synthesized with superior high conductivity of 3.6 mS/*** characterization proves the increase due to the anion disorder and volume expansion caused by ***,the poor interfacial stability between layered oxide cathode Li Ni_(0.6)Co_(0.2.Mn_(0.2.O_(2.and Li_(6.5)p_(0.5)Si_(0.5)S_(5)I inhibits its battery *** introducing Li_(3)InCl6electrolyte in the configuration,the corresponding battery delivers high initial discharge capacity of 150.2. Ah/g and superior cyclability during 2.0 cycles at 0.5 *** work offers design strategy to obtain Li_(6)pS_(5)I-based electrolytes for high performance solid-state batteries.

关键词： Argyrodite electrolyte Li_(6.5)p_(0.5)Si_(0.5)S_(5)I All-solid-state lithiumbatteries Stability Electrochemical performance

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Local quantum Fisher information and quantum correlation in the mixed-spin Heisenberg XXZ chain

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Frontiers of physics 2024年第2期19卷 235-245页

作者： peng-Fei wei Qi Luo Huang-Qiu-Chen Wang Shao-Jie Xiong Bo liu Zhe Sun school of physics Hangzhou Normal UniversityHangzhou 310036China Zhejiang Institute of Modern physics and school of physics Zhejiang UniversityHangzhou 310027China school of Information and electrical {2. Hangzhou City UniversityHangzhou 310015China Zhejiang provincial Key Laboratory of Urban Wetlands and regional Change Hangzhou 311121China

We study the local quantum Fisher information(LQFI)in the mixed-spin Heisenberg XXZ *** the maximal and minimal LQFI are studied and the former is essential to determine the accuracy of the quantum parameter estimation,the latter can be well used to characterize the discord-type quantum *** investigate the effects of the temperature and the anisotropy parameter on the maximal LQFI and thus on the accuracy of the parameter *** we make use of the minimal LQFI to study the discord-type correlations of different site *** dimensions of the subsystems cause different values of the minimal LQFI which reflects the asymmetry of the discord-type *** addition,the site pairs at different positions of the spin chains have different minimal LQFI,which reveals the influence of the surrounding spins on the bipartite quantum *** results show that the LQFI obtained through a simple calculation process provides a convenient way to investigate the discord-type correlation in high-dimensional systems.

关键词： local quantum Fisher information quantum correlation mixed-spin Heisenberg XXZ chain

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reliability evaluation of IGBT power module on electric vehicle using big data

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Journal of Semiconductors 2024年第5期45卷 50-60页

作者： Li liu Lei Tang Huaping Jiang Fanyi wei Zonghua Li Changhong Du Qianlei peng Guocheng Lu The school of electrical {2. Chongqing UniversityChongqing 400044China The Deepal Automobile Technology Co. Ltd.Chongqing 400023China

There are challenges to the reliability evaluation for insulated gate bipolar transistors(IGBT)on electric vehicles,such as junction temperature measurement,computational and storage *** this paper,a junction temperature estimation approach based on neural network without additional cost is proposed and the lifetime calculation for IGBT using electric vehicle big data is *** direct current(DC)voltage,operation current,switching frequency,negative thermal coefficient thermistor(NTC)temperature and IGBT lifetime are *** the junction temperature(T_(j))is *** the rain flow counting method,the classified irregular temperatures are brought into the life model for the failure *** fatigue accumulation method is then used to calculate the IGBT *** solve the limited computational and storage resources of electric vehicle controllers,the operation of IGBT lifetime calculation is running on a big data *** lifetime is then transmitted wirelessly to electric vehicles as input for neural *** the junction temperature of IGBT under long-term operating conditions can be accurately estimated.A test platform of the motor controller combined with the vehicle big data server is built for the IGBT accelerated aging ***,the IGBT lifetime predictions are derived from the junction temperature estimation by the neural network method and the thermal network *** experiment shows that the lifetime prediction based on a neural network with big data demonstrates a higher accuracy than that of the thermal network,which improves the reliability evaluation of system.

关键词： IGBT junction temperature neural network electric vehicles big data

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pattern Analysis on DC Breakdown phenomenon of polyethylene Films

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Transactions of Tianjin university 2006年第5期12卷 325-329页

作者：杜伯学刘勇刘弘景 school of electrical {2. and automation Tianjin University

pattern analysis method was used to study DC breakdown characteristics of low-density polyethylene （LDpE） film and high-density polyethylene （HDpE） film, with particular attention paid to the breakdown phenomenon identification. The breakdown pattern （Bp） was recorded by a monocular-video-zoom microscope. The records showed that the effective area of Bp was almost identical to the types of electrodes. The effective area od. The diameter was obtained by a mathematical was calculated by a mathematical integral methstatistic method. The study revealed that the DC breakdown voltage of LDpE was lower than that of HDpE. The diameter and effective area of LDpE were smaller than those of HDpE, but it is opposite for the condition of the needle-plane electrode with plane electrode grounded. As for the needle-plane electrode, the diameter and effective area with the films near the needle electrode were smaller than those near the plane electrode, and those in the middle of air gap were between them. As for the sphere-plane electrode, the diameter and effective area with the films near the plane electrode were smaller than those near the sphere electrode, and those in the middle of air gap were between them.

关键词： polyethylene thin films insulation breakdown pattern analysis

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Cyclic pulsating pressure Enhanced Segregating Structuration of Ultra-High Molecular weight polyethylene/Graphene Composites as High-performance Light-weight EMI Shields

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Chinese Journal of polymer Science 2024年第7期42卷 958-967,I0008页

作者： Yun-Zhi Huang Xiao-Xiao liu Lan-wei Li Guang-Ming Huang Zhao-Xia Huang Jin-ping Qu National engineering research Center of Novel Equipment for polymer processing Key Laboratory of Polymer Processing EngineeringMinistry of EducationGuangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced ManufacturingSchool of Mechanical and Automotive EngineeringSouth China University of TechnologyGuangzhou 510641China school of Advanced Manufacturing Technology Guangdong Mechanical&Electrical PolytechnicGuangzhou 510550China

Currently,the enhancement in electromagnetic interference(EMI)performance of polymeric composite generally relies on either improving electrical conductivity(σ)for stronger electromagnetic(EM)reflections or tailoring structure for higher EM ***,we proposed a novel technique called cyclic pulsating pressure enhanced segregating structuration(Cpp-SS),which can reinforce these two factors *** structural information was supplied by optical microscopy(OM)and scanning electron microscopy(SEM),both of which confirmed the formation and evolution of segregate structured ultra-high molecular weight polyethylene(UHMWpE)/graphene ***,the result showed that Cpp-SS can significantly improve theσof ***,advanced specific EMI shielding efficiency of 31.1 d B/mm was achieved for UHMWpE/graphene composite at 1-mm thickness and a low graphene loading of 5 wt%.Meanwhile,it also confirmed that the intrinsic disadvantage of poor mechanical properties of conventional segregated structure composites can be *** work is believed to provide a fundamental understanding of the structural and performance evolutions of segregated structured composites prepared under CppSS,and to bring us a simple and efficient approach for fabricating high-performance,strong and light-weight polymeric EMI shields.

关键词： Cyclic pulsating pressure Segregated structure Ultra-high molecular weight polyethylene Graphene Electromagnetic interface

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Guest Editorial for Special Issue on Human-centered Intelligent robots:Issues and Challenges

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IEEE/CAA Journal of Automatica Sinica 2017年第4期4卷 599-601页

作者： Zhijun Li C.L.philip Chen wei He IEEE College of automation Science and engineering South China University of Technology Department of Computer and Information Science Faculty of Science and Technology University of Macao school of automation and {2. engineering University of Science and Technology Beijing

The special issue aims to address a broad spectrum of topics ranging from human-centered intelligent robots acting as a servant,secretary,or companion to intelligent robotic *** special issue publishes original papers of innovative ideas and concepts,new discoveries,and novel applications and business models relevant to the field of human-centered intelligent *** this special issue,modeling,intelligent control,

关键词： In Guest Editorial for Special Issue on Human-centered Intelligent robots:Issues and Challenges

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