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Thermal safety of dendritic lithium against non-aqueous electrolyte in pouch-type lithium metal batteries

Journal of Energy Chemistry 2022年第9期31卷 158-165,I0005页

作者： Feng-Ni Jiang Shi-Jie Yang Xin-Bing Cheng Peng Shi Jun-Fan Ding Xiang Chen Hong Yuan Lei Liu Jia-Qi Huang Qiang Zhang College of Chemistry and Chemical Engineering Taiyuan University of TechnologyTaiyuan 030024ShanxiChina Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy and EnvironmentSoutheast UniversityNanjing 211189JiangsuChina Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China

A quantitative relationship between safety issues and dendritic lithium(Li) has been rarely investigated yet. Herein the thermal stability of Li deposits with distinct surface area against non-aqueous electrolyte in pouch-type Li metal batteries is probed. The thermal runaway temperatures of Li metal batteries obtained by accelerating rate calorimeter are reduced from 211 ℃ for Li foil to 111 ℃ for cycled *** initial exothermic temperature is reduced from 194 ℃ for routine Li foil to 142 ℃ for 49.5 m~2g^(-1) dendrite. Li with different specific surface areas can regulate the reaction routes during the temperature range from 50 to 300 ℃. The mass percent of Li foil and highly dendritic Li reacting with ethylene carbonate is higher than that of moderately dendritic Li. This contribution can strengthen the understanding of the thermal runaway mechanism and shed fresh light on the rational design of safe Li metal batteries.

关键词： Pouch-type cell Battery safety Lithium metal anode Lithium dendrite growth Thermal runaway

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Antagonistic interaction between caffeine and ketamine in zebrafish: Implications for aquatic toxicity

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Environmental science and Ecotechnology 2024年第5期21卷 350-360页

作者： Zhenglu Wang Jindong Xu Wei Du West China School of Public Health and West China Fourth Hospital Sichuan UniversityChengdu610041PR China College of Oceanography Hohai UniversityNanjing210098PR China Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control Faculty of Environmental Science&EngineeringKunming University of Science&TechnologyKunming650500PR China

The coexistence of caffeine(CF)and ketamine(KET)in surface waters across Asia has been widely *** studies have implied that CF and KET may share a mechanism of ***,the combined toxicity of these two chemicals on aquatic organisms remains unclear at environmental levels,and the underlying mechanisms are not well *** we demonstrate that KET antagonizes the adverse effects of CF on zebrafish larvae by modulating the gamma-aminobutyric acid(GABA)ergic synapse ***,KET(10e250 ng L^(-1))ameliorates the locomotor hyperactivity and impaired circadian rhythms in zebrafish larvae induced by 2 mg L^(-1) of CF,showing a dose-dependent ***,the developmental abnormalities in zebrafish larvae exposed to CF are mitigated by KET,with an incidence rate reduced from 26.7%to 6.7%.The competition between CF and KET for binding sites on the GABA-A receptor(in situ and in silico)elucidates the antagonistic interactions between the two *** a seven-day recovery period,the adverse outcomes of CF exposure persist in the fish,whereas the changes observed in the CFþKET groups are significantly alleviated,especially with KET at 10 ng L^(-1).Based on these results,it is imperative to further assess the environmental risks associated with CF and KET *** pilot study underscores the utility of systems toxicology approaches in estimating the combined toxicity of environmental chemicals on aquatic ***,the nighttime behavioral functions of fish could serve as a sensitive biomarker for evaluating the toxicity of psychoactive substances.

关键词： Caffeine Ketamine Systems toxicology Antagonistic effect GABAergic synapse

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Adaptive fuzzy security control of uncertain semi-Markov jump cyber-physical systems with stochastic perturbation

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Cyber-Physical Systems 2025年

作者： Xun, Tengteng Liu, Zhen Jiang, Baoping School of Automation Shandong Key Laboratory of Industrial Control Technology Qingdao University Qingdao China School of Electronic and Information Engineering Suzhou University of Science and Technology Suzhou China

A novel adaptive secure control strategy is proposed for uncertain stochastic semi-Markov jump cyber-physical systems utilizing fuzzy sliding mode control (FSMC) technology, where the studied plants are affected by actuator attacks (AAs), actuator failures (AFs), stochastic perturbations and unknown transition rates. This strategy not only constrains the state trajectory to the constructed sliding mode surface (SMS) during limited period, but also ensures that the uncertain system operates with control requirements against unknown AAs and AFs, and the stochastic stability condition is derived by integrating SMS reachability with stochastic control theory. Finally, simulation results exhibit the feasibility of the proposed algorithm. © 2025 Informa UK Limited, trading as Taylor & Francis Group.

关键词： Markov processes

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Microwave heating as a universal method to transform confined molecules into armchair graphene nanoribbons

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Nano Research 2023年第7期16卷 10644-10651页

作者： Haoyuan Zhang Yingzhi Chen Kunpeng Tang Ziheng Lin Xuan Li Hongwei Zhang Yifan Zhang Chi Ho Wong Chi Wah Leung Chee Leung Mak Yuan Hu Weili Cui Kecheng Cao Lei Shi State Key Laboratory of Optoelectronic Materials and Technologies Nanotechnology Research CenterGuangdong Province Key Lab of Display Material and TechnologySchool of Materials Science and EngineeringSun Yat-sen UniversityGuangzhou 510275China Huzhou Key Laboratory of Environmental Functional Materials and Pollution Control School of EngineeringHuzhou UniversityHuzhou 313000China Department of Industrial and Systems Engineering Research Institute for Advanced ManufacturingThe Hong Kong Polytechnic UniversityHong Kong 999077China Department of Applied Physics The Hong Kong Polytechnic UniversityHong Kong 999077China Shanghai Key Laboratory of High-resolution Electron Microscopy ShanghaiTech UniversityShanghai 201210China

Armchair graphene nanoribbons(AGNRs)with sub-nanometer width are potential materials for the fabrication of novel nanodevices thanks to their moderate direct band *** are usually synthesized by polymerizing precursor molecules on substrate ***,it is time-consuming and not suitable for large-scale *** can also be grown by transforming precursor molecules inside single-walled carbon nanotubes(SWCNTs)via furnace annealing,but the obtained AGNRs are normally *** this work,microwave heating is applied for transforming precursor molecules into *** fast heating process allows synthesizing the AGNRs in *** different molecules were successfully transformed into AGNRs,suggesting that it is a universal *** importantly,as demonstrated by Raman spectroscopy,aberrationcorrected high-resolution transmission electron microscopy and theoretical calculations,less twisted AGNRs are synthesized by the microwave heating than the furnace *** results reveal a route for rapid production of AGNRs in large scale,which would benefit future applications in novel AGNRs-based semiconductor devices.

关键词： armchair graphene nanoribbons(AGNRs) microwave heating single-walled carbon nanotubes(SWCNTs) Raman spectroscopy

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Unlocking the potential of silicon anodes in lithium-ion batteries:A claw-inspired binder with synergistic interface bonding

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escience 2024年第3期4卷 127-133页

作者： Jun Shen Shilin Zhang Haoli Wang Renxin Wang Yingying Hu Yiyang Mao Ruilin Wang Huihui Zhang Yumeng Du Yameng Fan Yingtang Zhou Zaiping Guo Baofeng Wang Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power Shanghai University of Electric PowerShanghai200090China School of Chemical Engineering The University of AdelaideAdelaide 5000Australia Institute for Superconducting&Electronic Materials University of WollongongWollongong2500Australia Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control National Engineering Research Center for Marine AquacultureMarine Science and Technology CollegeZhejiang Ocean UniversityZhoushan 316004China

Binders play a crucial role in enhancing the cycling stability of silicon anodes in next-generation Li-ion ***,traditional linear polymer binders have difficulty withstanding the volume expansion of silicon during ***,inspired by the fact that animals’claws can grasp objects firmly,a claw-like taurine-grafted-poly(acrylic acid)binder(Tau-g-PAA)is designed to improve the electrochemical performance of silicon *** synergistic effects of different polar groups(sulfo and carboxyl)in Tau-g-PAA facilitate the formation of multidimensional interactions with silicon nanoparticles and the diffusion of Li ions,thereby greatly improving the stability and rate performance of silicon anodes,which aligns with results from density functional theory(DFT)*** expected,a Tau-g-PAA/Si electrode exhibits excellent cycling performance with a high specific capacity of 1003mAhg−1at 1C(1C=4200mAhg−1)after 300 cycles,and a high rate *** design strategy of using polar small molecule-grafted polymers to create claw-like structures could inspire the development of better binders for silicon-based anodes.

关键词： Si electrode Taurine-g-poly(acrylic acid) Claw-inspired binder High ionic conductivity

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Molecular signatures of soil-derived dissolved organic matter constrained by mineral weathering

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Fundamental Research 2023年第3期3卷 377-383页

作者： Ying-Hui Wang Peng Zhang Chen He Jian-Chun Yu Quan Shi Randy A.Dahlgren Robert G.M.Spencer Zhi-Bing Yang Jun-Jian Wang State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan UniversityWuhan 430072China State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing 102249China Shanghai Engineering Research Center of Hadal Science and Technology College of Marine SciencesShanghai Ocean UniversityShanghai 201306China Department of Land Air and Water ResourcesUniversity of California DavisDavis 95616United States Department of Earth Ocean and Atmospheric ScienceFlorida State UniversityTallahassee 32306United States

Dissolved organic matter(DOM)in soils drives biogeochemical cycling and soil functions in different directions depending on its molecular ***,there is a distinct paucity of information concerning how the molecular signatures of soil DOM vary with different degrees of weathering across wide geographic ***,we resolved the DOM molecular signatures from 22 diverse Chinese reference soils and linked them with soil organic matter and weathering-related mineralogical *** mixed-effects models revealed that the yields of DOM were determined by soil organic carbon content,whereas the molecular signature of DOM was primarily constrained by the weathering-related *** soil weathering index showed a positive effect on the lability and a negative effect on the aromaticity of ***,DOM in highly weathered acidic soils featured more amino sugars,carbohydrates,and aliphatics,as well as less O-rich polyphenols and condensed aromatics,thereby conferring a higher DOM biolability and lower DOM *** study highlights the dominance of the weathering-related dimension in constraining the molecular signatures and potential functions of DOM in soils across a wide geographic scale.

关键词： Soil organic matter Dissolved organic matter Chemical composition Molecular signature Mineral weathering

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New insights into the formation of ammonium nitrate from a physical and chemical level perspective

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Frontiers of Environmental science & engineering 2023年第11期17卷 209-221页

作者： Yuting Wei Xiao Tian Junbo Huang Zaihua Wang Bo Huang Jinxing Liu Jie Gao Danni Liang Haofei Yu Yinchang Feng Guoliang Shi State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control Tianjin Key Laboratory of Urban Transport Emission ResearchCollege of Environmental Science and EngineeringNankai UniversityTianjin 300350China CMA-NKU Cooperative Laboratory for Atmospheric Environment-Health Research(CLAER) College of Environmental Science and EngineeringNankai UniversityTianjin 300350China Institute of Resources Utilization and Rare Earth Development Guangdong Academy of SciencesGuangzhou 510650China Guangzhou Hexin Instrument Co.Ltd. Guangzhou 510530China State Key Laboratory of Precision Measuring Technology and Instruments Tianjin Key Laboratory of Air pollutants Monitoring TechnologySchool of Precision Instrument and Opto-electronics EngineeringTianjin UniversityTianjin 300072China Gigantic Technology(Tianjin)Co.Ltd. Tianjin 300384China Department of Civil Environmental and Construction EngineeringUniversity of Central FloridaOrlandoFL32816USA

High levels of fine particulate matter(PM_(2.5))is linked to poor air quality and premature deaths,so haze pollution deserves the attention of the *** abundant inorganic components in PM_(2.5),ammonium nitrate(NH_(4)NO_(3))formation includes two processes,the diffusion process(molecule of ammonia and nitric acid move from gas phase to liquid phase)and the ionization process(subsequent dissociation to form ions).In this study,we discuss the impact of meteorological factors,emission sources,and gaseous precursors on NH4NO3 formation based on thermodynamic theory,and identify the dominant factors during clean periods and haze *** show that aerosol liquid water content has a more significant effect on ammonium nitrate formation regardless of the severity of *** dust source is dominant emission source in clean periods;while a combination of coal combustion and vehicle exhaust sources is more important in haze *** the control of ammonia emission is more effective in reducing the formation of ammonium *** findings of this work inform the design of effective strategies to control particulate matter pollution.

关键词： Ammonium nitrate formation Thermodynamic theory Aerosol liquid water content Source apportionment

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Discrete element simulation of effects of multicontact loading on single particle crushing

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Particuology 2022年第10期20卷 49-60页

作者： Chuanfeng Fang Zhihong Nie Jian Gong Bo Li Wei Hu Ashiru Mohammed School of Civil Engineering Central South UniversityChangsha 410075China College of Civil of Engineering and Architecture Guangxi UniversityNanning530004China College of Architecture and Civil Engineering Wenzhou UniversityWenzhou 325035China Hunan Province Key Laboratory of Geotechnical Engineering Stability Control and Health Monitoring Hunan University of Science and TechnologyXiangtan411201China

Particle crushing commonly occurs in granular materials and affects their structures and mechanical *** idealized particles in experimental single particle crushing tests with two loading points,natural particles are crushed under multicontact *** date,the criteria and patterns of par-ticle crushing under multicontact conditions are not fully *** using the three-dimensional discrete element method,this report explores the effect of multicontact loading on the crushing criterion of a single particle,the crushing pattern,and the relationship between the particle crushing strength and loading *** particles are modelled as aggregates of glued Voronoi *** numer-ical results indicate that the logarithm of the mean principal stress has a good linear correlation with the coordination *** a specific coordination number,the number of child particles presents a significant normal *** a specific number of child particles,the volumes of child particles can be statistically described as normal or gamma *** typical models are proposed to qual-itatively analyse the relationship between the loading distribution and crushing *** relevant conclusions can be helpful in engineering practice and in further studies on crushable granular materials via the discrete element method.

关键词： DEM Multiple contacts Particle crushing Crushing criterion Crushing pattern Loading distribution

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A Pulsed eddy current testing method for crack defects in lead-sealed joints of high-voltage cables

A Pulsed eddy current testing method for crack defects in le...

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第34届中国过程控制会议

作者： Ning Wang Peijun Shangguan Junping Cao Yunqi Cao Dibo Hou Pingjie Huang State Key Laboratory of Industrial Control Technology College of Control Science and EngineeringZhejiang University State Grid Zhejiang Electric Power Research Institute

This paper presents a classification method for pulse eddy current detection of defects in high-voltage cable leadsealed *** detection experiments were conducted with pulsed eddy current for three morphologies(smooth area,concaveconvex area and defective area) of high-voltage cable lead-sealed joints in actual *** the experiments,a multi-indicator fusion feature extraction method based on auto-encoder reconstruction is proposed,which combines three mathematical features,Frechet distance,Pearson correlation coefficient and auto-encoder reconstruction error,as a new feature *** feature is fed into a classifier combined by a Support Vector Machine(SVM) and a Long short-term memory(LSTM) network to classify and identify the three cases of lead-sealed joint *** results show that the proposed method in this paper has a good performance in the qualitative discrimination of smooth areas,concave-convex areas and defective areas,which provides support for subsequent quantitative evaluation.

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Fixed- Time Adaptive Neural Pitch Angle control for Variable-Speed Wind Turbines

Fixed- Time Adaptive Neural Pitch Angle Control for Variable...

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Data Driven control and Learning Systems (DDCLS)

作者： Shuzong Xie Qinmin Yang Qingyi Li Shaodong Wang Jun Yang State Key Laboratory of Industrial Control Technology College of Control Science and Engineering Zhejiang University Hangzhou China Zhejiang Provincial Energy Group Company Ltd. Jia Xing China

ISBN: (数字)9798350361674

ISBN: (纸本)9798350361681

This paper mainly focuses on the challenging problem of fixed-time adaptive neural pitch angle control for variable-speed wind turbines. Firstly, a switching continuous fixed-time sliding mode variable is adopted to avoid the singularity problem. Then, an adaptive sigmoid function neural network is introduced to approximate the unknown nonlinear function of wind tur-bines. On this basis, a fixed-time adaptive neural pitch angle controller is systematically developed, such that the tracking error can converge to a small neighborhood of the origin in fixed-time, thereby improving the power generation efficiency of wind turbines. Finally, the fixed-time stability of the whole closed-loop system is analyzed with rigorous theoretical proof, and the effectiveness of the proposed scheme is verified through a 1.5-MW three-blade wind turbine in Matlab/Simulink.

关键词： Adaptive systems Wind speed Simulation Neural networks Switches Wind power generation Stability analysis

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