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Molecule‑Level Multiscale Design of Nonflammable Gel Polymer Electrolyte to Build Stable SEI/CEI for Lithium Metal Battery

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Nano-Micro Letters 2025年第1期17卷 404-423页

作者： Qiqi Sun Zelong Gong tao Zhang jiafeng Li Xianli Zhu Ruixiao Zhu Lingxu Wang Leyuan Ma Xuehui Li Miaofa Yuan Zhiwei Zhang Luyuan Zhang Zhao Qian Longwei Yin Rajeev Ahuja Chengxiang Wang Key Laboratory for Liquid‑Solid Structural Evolution and Processing of Materials(Ministry of Education) School of Materials Science and EngineeringShandong UniversityJinan 250061People’s Republic of China Condensed Matter Theory Department of Physics and AstronomyUppsala UniversityUppsala 75120Sweden

The risk of flammability is an unavoidable issue for gel polymer electrolytes(GPEs).Usually,flameretardant solvents are necessary to be used,but most of them would react with anode/cathode easily and cause serious interfacial instability,which is a big challenge for design and application of nonflammable ***,a nonflammable GPE(SGPE)is developed by in situ polymerizing trifluoroethyl methacrylate(TFMA)monomers with flame-retardant triethyl phosphate(TEP)solvents and LiTFSI–LiDFOB dual lithium *** is strongly anchored to PTFMA matrix via polarity interaction between-P=O and-CH_(2)CF_(3).It reduces free TEP molecules,which obviously mitigates interfacial reactions,and enhances flame-retardant performance of TEP *** TEP molecules are also inhibited in solvation of Li^(+),leading to anion-dominated solvation sheath,which creates inorganic-rich solid electrolyte interface/cathode electrolyte interface *** coordination structure changes Li^(+)transport from sluggish vehicular to fast structural transport,raising ionic conductivity to 1.03 mS cm^(-1) and transfer number to 0.41 at 30℃.The Li|SGPE|Li cell presents highly reversible Li stripping/plating performance for over 1000 h at 0.1 mA cm^(−2),and 4.2 V LiCoO_(2)|SGPE|Li battery delivers high average specific capacity>120 mAh g^(−1) over 200 *** study paves a new way to make nonflammable GPE that is compatible with Li metal anode.

关键词： Anchoring effect Nonflammable gel electrolyte In situ cross-linked Electrode-electrolyte interface Li metal battery

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Construction of hollow mesoporous ZnMn2O4/C microspheres with carbon nanotubes embedded in shells for high-performance aqueous zinc ions batteries

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Nano Research 2023年第1期16卷 1726-1732页

作者： Feiran Chen Qinru Wang Xiaofeng Yang Chao Wang Hu zang Yingwen Tang tao Li Baoyou Geng College of Chemistry and Materials Science the Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education InstitutesAnhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage MaterialsAnhui Normal UniversityWuhu 241002China College of Physics and Information Engineering Minnan Normal UniversityZhangzhou 363000China Shanghai Institute of Technical Physics Chinese Academy of SciencesShanghai 100029China Institute of Energy Hefei Comprehensive National Science CenterHefei 230031China

Recently,rechargeable zinc-ion batteries have been considered as the future development direction of large-scale energy storage due to their low price,safety,environmental friendliness,and excellent electrochemical ***,highcapacity,long-cycle stable cathode materials that can meet the demand are still to be ***,the hollow mesoporous ZnMn2O4/C microsphere cathode material with carbon nanotubes embedded in the shell was prepared by spray pyrolysis for the first *** capacity remained at 209.71 mAh·g−1 after 150 cycles at a rate of 0.5 A·g−1,and still maintained a specific capacity of 100.06 mAh·g−1 at a rate of 1 A·g−1 after 1,000 *** outstanding performance is attributed to the hollow structure that can effectively buffer large volume changes caused by ion intercalation and deintercalation,excellent porosity,cationic defects,and high electrical conductivity of carbon nanotubes and its strong adsorption to ZnMn2O4 nanoparticles.

关键词： mesoporous hollow microspheres carbon nanotubes zinc-ion battery ZnMn2O4

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U-Pb Ages of the Late Early Cretaceous Magmatic Rocks in the Zhalantun Area of Inner Mongolia

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Acta Geologica Sinica(English Edition) 2019年第1期93卷 233-235页

作者： QIN tao LI Linchuan QIAN Cheng SUN Wei MA Yongfei zang Yanqing Shenyang Geological Survey Center China Geological Survey College of Geoscience Jilin University

A great deal of early-to-mid Early Cretaceous magmatic activities have been recorded in the Zhalantun area of Inner Mongolia,while the late Early to Late Cretaceous magmatic rocks have been barely reported(Guo et al.,2018;Zhang Xiangxin et al.,2017).At present,only a few Late Cretaceous magmatic activities were reported in the Arongqi area,such as volcanic rocks of the Gushanzhen ***,the Gushanzhen Formation lacks accurate isotopic age,and contemporaneous intrusive rocks has not been reported *** this work,we collected the volcanic rocks from the Gushanzhen Formation and contemporaneous intrusive rocks in the Zhanlantun and nearby,and aim to figure out the formation ages of volcanic rocks of the Gushanzhen Formation and accompanied intrusive rocks by analyzing zircon U-Pb isotopes(Fig.1).

关键词： U-Pb Mongolia Cretaceous

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ROBUST DESIGN OF A TWO DEGREE FREEDOM *** TO THE PARAMETER UNCERTAINTY

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Chinese Journal of Mechanical Engineering 2008年第6期21卷 30-35页

作者： zang Chaoping College of Energy and Power Nanjing University of Aeronautics and Astronautics Nanjing 210016 China

A method based on the robust design optimization is presented to handle the structural uncertainty problems. The variations caused in dynamic performance can be expressed by the mean response and the standard deviation of the performance. The robust optimization approach, based on a multi-objective and non-deterministic method, attempts to both optimize the mean performance and minimize the variance of the performance simultaneously. The best possible design optimization is chosen by a trade-off decision. An example of robust design of a two degree freedom system is used to effectively illustrate the application in dynamics. The mass and stiffness uncertainty in the main system as well as the uncertainty of the mass, stiffness and damping in the absorber are considered all together in order to minimize the displacement response of the main system within a wide band of excitation frequencies. The robust optimization results show a significant improvement in performance compared with the conventional solution recommended from vibration textbooks. It is indicated that robust design methods have great potential for application in structural dynamics to deal with uncertainty problems.

关键词： Robust design Optimization Dynamics

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Effect of Surface Texture on Tensile Shear Strength of 1060Al-PET Welding Joints

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Chinese Journal of Mechanical Engineering 2021年第5期34卷 306-321页

作者： jia Liu Yuchi Dai Yan Shi Wenfu Cui tao jiang School of Electromechanical Engineering Changchun University of Science and TechnologyChangchun 130022China Engineering Research Center of Laser Processing for Universities of Jilin Province Changchun 130022China National Base of International Science and Technology Cooperation in Optics Changchun 130022China

Joining metal to plastic can lighten weight of products to reduce energy ***,it is difficult to achieve high-strength welding between metal and *** address this problem,the methods of surface texture pretreatment and laser irradiation welding was proposed to achieve the high-strength connection of metal and *** this study,with different parameters of laser power and texture morphology,1060 Al with surface texture treatment was joined to polyethylene terephthalate(PET)by laser irradiation welding from metal *** showed that as the laser power increased,the tensile shear strength of joints increased first,and decreased *** shear tests demonstrated that the mechanical force of joint was strengthened contributed to mechanical anchorage formed by surface *** depth-width ratio of the texture grooves affected the tensile shear process of the *** to the result of temperature simulation,the existence of texture grooves reduced the heat transfer efficiency,and the heat dissipation at interface was also impeded in course of laser ***,the maximum tensile strength of 1060Al-PET joint reached 48.4 MPa,which was close to the strength of PET *** bonding mechanism of the 1060Al-PET joints was composed of mechanical bonding and chemical *** study proposes an effective method to join metal to plastic which achieved high-strength connection between metal and plastic.

关键词： 1060Al-PET Surface texture Tensile shear strength Depth/width ratio Mechanical anchoring effect

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Successive MISOCP Algorithm for Islanded Distribution Networks with Soft Open Points

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CSEE Journal of Power and Energy Systems 2023年第1期9卷 209-220页

作者： tao Zhang Yunfei Mu Hongjie jia Xinying Wang Tianjiao Pu Key Laboratory of Smart Grid of Ministry of Education Key Laboratory of Smart Energy&Information Technology of Tianjin MunicipalityTianjin UniversityTianjin 300072China e China Electric Power Research Institute Beijing 100192China

An optimal operation scheme is of great significance in islanded distribution networks to restore critical loads and has recently attracted considerable *** this paper,an optimal power flow(OPF)model for islanded distribution networks equipped with soft open points(SOPs)is *** in the grid-connected mode,the adequacy of local power generation in distribution networks is critical for islanded *** proposed approach utilizes the power output of local distributed generations(DGs)and the benefits of reactive power compensation provided by SOPs to allow maximum *** exploit the available resources,an optimal secondary droop control strategy is introduced for the islanded distribution networks,thereby minimizing load *** formulated OPF problem is essentially a mixed-integer nonlinear programming(MINLP)*** guarantee the computation efficiency and accuracy.A successive mixed-integer second-order cone programming(SMISOCP)algorithm is proposed for handling the nonlinear islanded power flow *** case studies,incorporating a modified IEEE 33-bus system and IEEE 123-bus system,are performed to test the effectiveness of the proposed approach.

关键词： Distribution network islanded operation second-order cone programming soft open points successive approximation

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Numerical Simulation and Experimental Verification of Laser Multi‑Section Welding

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Chinese Journal of Mechanical Engineering 2022年第6期35卷 219-233页

作者： jia Liu tao jiang Yan Shi Hongyin Zhu Yuchi Dai School of Electromechanical Engineering Changchun University of Science and TechnologyChangchun 130022China Engineering Research Center of Laser Processing for Universities of Jilin Province Changchun 130022China National Base of International Science and Technology Cooperation in Optics Changchun 130022China

To address the problems of large welding deformation and splashing in the resistance spot welding of the lubricating oil cooler plate,the laser spot welding was employed,instead of the resistance spot welding,and a novel laser spot welding was proposed,i.e.,laser multi-section *** major processes involved in this study referred to a finite element model of pulsed laser lap welding built by adopting SYSWELD simulation software,as well as the laser welding of various welding *** effect of different welding methods on the welding quality was studied,the parameters of the average power and the duty cycle were optimized in line with the comparative analysis of the experimentally achieved results and the numerical *** indicated from the experimentally achieved results,when the new 6-sections welding method was adopted,the resulting welded joint achieved the most uniform heat input and the largest welding fusion area,and the tensile properties exhibited by the welded joints were significantly enhanced,whereas some pores *** altering the duty cycle,pores could be eliminated to further improve the quality of the *** mentioned process method could tackle down the problems facing conventional resistance spot ***,it was capable of improving the uneven heat input of the laser spot welding.

关键词： Laser multi-section welding SYSWELD Finite element analysis Mechanical properties

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Study on Transient Gap Resonance with Consideration of the Motion of Floating Body

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China Ocean Engineering 2022年第6期36卷 994-1006页

作者： GAO Jun-liang LYU Jing WANG Jing-hua ZHANG jian LIU Qian zang Jun ZOU tao School of Naval Architecture and Ocean Engineering Jiangsu University of Science and TechnologyZhenjiang 212100China Key Laboratory of Port Waterway and Sedimentation Engineering of MOTNanjing Hydraulic Research InstituteNanjing 210029China Department of Civil and Environmental Engineering the Hong Kong Polytechnic UniversityHong KongChina Centre for Infrastructure Geotechnical and Water Engineering(IGWE)Department of Architecture and Civil EngineeringUniversity of BathBA27AYU.K Shandong Provincial Key Laboratory of Ocean Engineering Qingdao 266100China

In this paper, the transient fluid resonance phenomenon inside a narrow gap between two adjacent boxes excited by the incident focused waves with various spectral peak periods and focused wave amplitudes is simulated by utilizing the open-sourced computational fluid dynamics software, Open FOAM. The weather-side box is allowed to heave freely under the action of waves, and the lee-side box keeps fixed. This paper mainly focuses on how both the spectral peak period and the focused wave amplitude affect the free-surface amplification inside the gap, the motion of the weather-side box, and the wave loads(including the vertical and the horizontal wave forces) acting on both *** comparison, another two-box system with both boxes fixed is also considered as a control group. It is found that the motion of the weather-side box significantly changes the characteristics of the transient gap resonance, and it would cause that the fluid resonant period becomes 1.4-1.6 times that of the two-box system with both boxes *** the concerned physical quantities(i.e., the free-surface amplification in the gap, the motion of the weather-side box, the wave loads) are found to closely depend on both the spectral peak period and the focused wave amplitude.

关键词： transient gap resonance focused waves free-surface amplification wave loads heave motion OpenFOAM

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Triple signal amplification electrochemical sensing platform for Hg^(2+) in water without direct modification of the working electrode

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Frontiers of Environmental Science & Engineering 2024年第7期18卷 157-167页

作者： Liuyin Hu jiahua Cui tao Lu Yalin Wang Jinping jia School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240China International Copper Association Ltd.Shanghai 200020China

An ultrasensitive electrochemical biosensor to detect trace Hg^(2+)in environmental samples was developed utilizing nanogold-decorated magnetic reduced graphene oxide(MrGO-AuNPs),exonuclease III-assisted target cycle(Exo Ⅲ-ATC)and hybridization chain reaction(HCR)synergistic triple signal *** MrGO-AuNPs is a superior carrier for capture DNA(cDNA)and acts as magnetic media for automatic separation and *** innovative utilization of the magnetism and improved sensing efficiency obviates the need for direct modification and repeated polishing of the working ***,the three DNA hairpins(cDNA,methylene blue(MB)labeled HP1 and HP2)further contribute to biosensor specificity and *** cDNA captures Hgt,it activates Exo Ⅲ-ATC due to the formation of a sticky end in the DNA stem via thymine-Hig-thymidine(T-Hg^(2+)-T),this leads to the hydrolysis of self-folded DNA by Exo Ⅲ-ATC to form"key"DNA(kDNA).The kDNA subsequently initiates HCR,resulting in massive super-sandwich structures(kDNA-[HP1/HP2])carrying signaling molecules on MrGO-AuNPs,and this overall structure serves as a signal probe(SP).Leveraging magnetic adsorption,the SP was automatically adsorbed onto the magneto-glass carbon electrode(MGCE),generating an amplified *** biosensor's detection limit(LOD)was 3.14 pmol/L,far below the limit of 10 nmol/L for mercury in drinking water set by the US *** biosensor also showed excellent selectivity when challenged by interfering ions,and the results of its application in actual samples indicate that it has good potential for practical applications in environmental monitoring.

关键词： Electrochemical sensing Hg^(2+) Amplification Graphene Hybridization chain reaction Exonuclease Ⅲ

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Mechanism of diamond-to-graphite transformation at diamond-stable conditions

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Chinese Science Bulletin 2009年第14期54卷 2535-2538页

作者： zang ChuangYi CHEN XiaoZhou HU Qiang MA HongAn jia XiaoPeng Institute of Materials Science and Engineering Henan Polytechnic University Jiaozuo 454000 China State Key Laboratory of Superhard Materials Jilin University Changchun 130012 China

The diamond-to-graphite transformation at diamond-stable conditions is studied by temperature gradient method (TGM) under high pressure and high temperature (HPHT), although it is unreasonable from the view of thermodynamic considerations. It is found that, at diamond-stable conditions, for example, at 5.5 GPa and 1550 K, with fine diamond grits as carbon source and NiMnCo alloy as metal solvent assisted, not only large diamond crystals, but metastable regrown graphite crystals would be grown by layer growth mechanism, and the abundance of carbon source in the higher temperature region is indispensable for the presence of metastable regrown graphite crystals. From this transformation, it is concluded that, with metal solvent assisted, although the mechanism of crystal growth could be understood by the macro-mechanism of solubility difference between diamond and graphite in metal solvents, from the point of micro-mechanism, the minimum growth units for diamond or graphite crystals should be at atomic level and unrelated to the kinds of carbon source (diamond or graphite), which could be accumulated free-selectively on the graphite with sp2π or diamond crystals with sp3 bond structure.

关键词：宏观调控机制金刚石晶体石墨晶体钻石晶体稳定转化温度梯度法 NiMnCo

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