摘要：
Diffusion study of the Ni-Si-V system is significant for the establishment of kinetic database of Ni-based alloys. In this work, the diffusion couple experiment combined with the numerical inverse method was adopted to evaluate the diffusivities and atomic mobilities for the Ni-Si-V fcc phase with high throughput. We prepared 12 fcc Ni-Si-V diffusion couples, which were annealed at 1273, 1373 and 1473 K, and their composition profiles after annealing were then measured by EPMA (Electron Probe Microanalysis). Subsequently, inputting the measured composition profiles as well as the available thermodynamic descriptions into the numerical inverse method incorporated in the CALTPP (CALculation of ThermoPhysical Properties) software, the composition- and temperature-dependent diffusivities and atomic mobilities for the Ni-Si-V fcc phase were simultaneously evaluated. In order to verify the reliability of the present evaluations, the CALTPP-simulated diffusion behaviors such as composition profiles and diffusion paths were compared with the measured ones, demonstrating reasonable agreements with each other. Meanwhile, the high-throughput determinations of diffusivities were confirmed by the ones obtained by the Matano-Kirkaldy method. Furthermore, applying the presently obtained diffusivities and atomic mobilities in combination with thermodynamic descriptions of the Ni-Si-V fcc phase, their diffusion flux, two-dimensional composition profile, activation energy and pre-frequency factor were predicted. It is expected that the presently obtained diffusivities and atomic mobilities of the Ni-Si-V fcc phase can contribute to the establishment of kinetic database of Ni-based alloys for their high-efficiency material design.
摘要：
Vanadium redox flow batteries (VRFBs) are promising energy storage systems with the potential to bridge the gap between intermittent renewable electricity generation and continuous supply of reliable electricity. The electrodes found in VRFB cells affect their energy efficiency (EE) and power density. It is important to fabricate electrodes with intriguing properties to enable VRFBs to have high performance. Herein, the abundant and cost-effective lignin is employed as the precursor to produce amorphous carbon particles after undergoing thermal decomposition treatment. The carbon particles cover the surface of carbon felt (CF). The resulting CF modified by lignin-derived carbon particles (Lignin-CF) with increased active sites and improved hydrophilicity displays superior electrochemical activity towards the VO(2)(+)/VO(2+) pair than both the pristine CF and the heated bare CF. Remarkably, the VRFB consisting of Lignin-CF which acts as the positive electrode shows high performance in terms of the average EE (83.3%) and average voltage efficiency (VE) (85.0%) over 1000 cycles (long cycling life) for more than 16days at 100mAcm(-2), and high power density of 1053.2 mW cm(-2). It is noted that the EE and VE are comparable to the highest reported value of CF modified by carbon-based materials, aside having evidently longer cycling life. This study provides a feasible strategy for fabricating an affordable electrode for high-performance VRFBs.
摘要：
Stiff discontinuities have a significant influence on deep hard rock engineering disasters. To study the influence of these discontinuities on the deformation and failure mechanisms of deep hard rock during excavation, true triaxial tests are carried out on marble samples with natural stiff discontinuities; samples with different discontinuity inclination angles and thicknesses are tested under different true triaxial stress conditions. The experimental results show that the post-peak deformation and failure characteristics of a sample are significantly influenced by the inclination angle, thickness, and stress state of the stiff discontinuity. Under the conditions of a relatively high minimum principal stress, small intermediate principal stress, thick stiff discontinuity, and inclination angle close to the failure angle of the intact sample at the same stress level, the propagation and penetration of microcracks inside the sample are mainly controlled by the stiff discontinuity, and the sample is more prone to sudden and violent tensile failure along the stiff discontinuity. Based on these experiments, a sudden and violent failure tendency index of deep hard rock with a stiff discontinuity (psi) is proposed to evaluate the impact of stiff discontinuities on surrounding rock failure in deep engineering, and the characteristics of psi under typical stress levels are summarized. This research can provide a reference for the prevention and control of sudden disasters caused by stiff discontinuities in deep engineering.
摘要：
In this study, metakaolin (MK)–ground granulated blast furnace slag (GGBFS) was used to prepare geopolymer mortar, and concrete was prepared using prismatic-shaped basalt or aged cement mortar block as coarse aggregate. The pore structure characterization of the mortar, chloride binding capacity of the corresponding paste and the micro dimension of the interfacial transition zone (ITZ) in concrete were analysed by using a mercury intrusion porosimeter, the chloride adsorption equilibrium method and scanning electron microscopy-energy dispersive spectroscopy, respectively. The medium transmission properties of the concrete and corresponding mortar were analysed through a moisture diffusion test, chloride migration test, and chloride natural diffusion test. On this basis, the permeability resistance of the ITZ in geopolymer concrete was studied by manipulating the parameters for the basalt aggregate. The result shows that the geopolymer mortar exhibits higher porosity compared to cement mortar with similar strength, while the most probable pore size is significantly smaller, with more than 80% of the pores showing a pore size of less than 50 nm. The chloride binding mechanism for geopolymer paste primarily involves physical adsorption, and shows a greater binding capacity than cement paste at a chloride ion concentration greater than 1 mol/L. The medium transmission coefficient for geopolymer concrete is found to be 55.1–79.0% of that of cement concrete for the same parameters of the coarse aggregate. The impermeability of geopolymer concrete and its ITZ is found to be always better than that of cement concrete for varying parameters of the coarse aggregate.
摘要：
In this study, the axial compressive behaviors of steel reinforced ternary composite geopolymer recycled fireclay brick aggregates concrete columns were investigated. The ternary binder material used in this study was produced by the combination of industrial by-products (i.e., granulated blast furnace slag (GGBS), recycled fireclay brick powder (RFBP), and fly ash (FA)) and alkali-activated solution. A total of 60 square steel reinforced composite columns (with a 200-mm side length and 600-mm height) were tested under axial compression. The tested variables included the mix proportion of ternary composite geopolymer concrete with recycled aggregates containing recycled fireclay brick aggregates (GRA-RFBAC), the recycled coarse aggregate replacement ratios (0%, 30%, 50%, 70%, 100%), the longitudinal reinforcement ratios (1.13%, 2.01%), and the hoop stirrup reinforcement ratios (0.81%, 1.62%). Each group contained three identical samples. The ductility, failure mode, and axial load-bearing capacity of the columns were recorded and analyzed. The experimental results revealed that the damage progression and patterns of steel reinforced GRA-RFBAC columns were similar to those of ordinary Portland cement based recycled concrete columns. The ultimate bearing capacity of steel reinforced GRARFBAC columns decreased with an increasing replacement ratio of recycled coarse aggregate and increased with an increasing reinforcement ratio of longitudinal and hoop stirrups. Meanwhile, the stress-strain model of steel reinforced GRA-RFBAC columns under axial compression was proposed based on the experimental results. The present study suggests an efficient and environmental-friendly compression member.
摘要：
Bacteria colonized on solid electrode developing electroactive biofilm (EAB) has been shown to promote the contaminants biodegradation. Regulating electrode potential can improve the stability of extracellular electron transfer (EET), but how the electrode potential regulating the extracellular polymer secretion and the tetracycline (TC) removal has not been fully studied. Here, EAB cultured at 0 V was used to study the degradation mechanism of TC at different electrode potentials. Results showed that −0.1 V was the optimized electrode potential for TC biodegradation compared with 0.1 V, 0 V and −0.3 V, which was 28 % higher than that without electric field. Stimulation of electric field can retain proper extracellular polymer (EPS) to relieve the poison of TC, while excessive extracellular polysaccharide (PS) at 0 V have hindered the contact between microorganisms and TC, thus limited electron transfer and reduced the TC biodegradation efficiency. Excessively negative potential (−0.3 V) will restrict the electron transfer which was not conducive to the biodegradation of organic pollutants. Microbial community analysis revealed that TC addition have refreshed the EAB structure, Dokdonella and Norank_f_Rikenellaceae replaced Geobacter as the dominant species in EAB to promote TC biodegradation. The variation of metabolic pathway was suggested that the up-regulation of pyruvate metabolism and ubiquinone synthesis at −0.1 V have promoted the TC removal. This study has provided theoretical support for the electrode potential regulating the extracellular polymer secretion and promoting the pollution bioremediation.
摘要：
The paper develops an adaptive constrained tracking control technique for a class of 2 × 2 hyperbolic partial differential equation (PDE) systems with boundary actuator dynamics, which are described by a set of ordinary differential equations (ODEs) in the presence of unknown parametric nonlinearities. Since the control input only appears in the uncertain ODE subsystem rather than directly on the boundary of PDE subsystem, the control task becomes quite difficult and the existing direct boundary control approaches are ineffective. Moreover, in this paper, a more challenging problem is considered such that the controlled output and the states of ODE actuators are constrained. To this end, by utilizing finite and infinite dimensional backstepping techniques, barrier Lyapunov functions (BLFs) and adaptive methods, a novel adaptive tracking control approach is proposed. It is the first time that such a constrained tracking control problem is addressed for the PDE-ODE coupled systems considered in this paper. On the basis of the presented method, the rigorous theoretical proof is provided to show that the PDE controlled output and all the states of the ODE actuator stay within the predefined compact sets. Finally, the results are illustrated via a comparative numerical simulation.
摘要：
Zero-valent iron (ZVI) reduction represents a promising methodology for water remediation, but its broad application is limited by two critical challenges (i.e., aggregation and passivation). Here, we report a hybrid strategy of photochemical-promoted ZVI reduction with high efficiency and reduction capacity for removing coexisting refractory pollutants in water. A composite material with Pd/Fe bimetallic nanoparticles supported onto semiconducting metal oxide (Pd/Fe@WO(3)-GO) was prepared and subsequently used as the model catalyst. By using the developed strategy with visible light as light source, this catalyst showed a remarkable catalytic performance for simultaneously eliminating 4-chlorophenol (4-CP) and Cr(VI), with dehalogenation rate as high as 0.43min(-1), outperforming the reported ZVI-based catalysts. A synergistic interaction of photocatalysis and ZVI reduction occurred in this strategy, where the interfacial electron transfer on particles surface were greatly strengthened with light irradiation. The activation was attributed to the dual functions of semiconducting material as support to disperse Pd/Fe nanoparticles and as (photoexcited) electron donor to directly trigger reduction reactions and/or indirectly inhibit the formation of oxides passivation layer. Both direct electron transfer and H*-mediated indirect electron transfer mechanisms were confirmed to participate in the reduction of pollutants, while the later was quantitatively demonstrated as the predominant reaction route. Importantly, this strategy showed a wide pH applicability, long-term durability and excellent catalytic performance in different real-water systems. This work provides new insights into ZVI reduction and advances its applications for the removal of combined organic and inorganic pollutants. The developed photochemical-promoted ZVI reduction strategy holds a great potential for practical applications.
关键词：
PV direct driven air conditioner (PVAC);Zero energy buildings;Load flexibility;Building design
摘要：
The energy matching of PV driven air conditioners is influenced by building load demand and PV generation. Merely increasing energy performance of building or PV capacity separately may improve the energy balance on a large time resolution, the real-time energy mismatching problem is still serious. In this study, a coordinated optimization method of PV capacity, building design, and load flexibility is proposed for improving the real-time energy matching of PVAC system. Then, a methodology integrating data mining method (XG Boost) and parametric simulation was developed to identify the determinant parameters of PV system and building design, exploring feature importance and correlations. The results of XG Boost indicate that the PV capacity, shape factor, and SHGC are the most critical factors. Finally, based on the optimized building design, the PCM layer was applied to improve the real time energy matching. To achieve a goal of 90 % ZEP, the PCM capacity can be decreased by 50.4 % and 62.8 % in Guangzhou and Shanghai in the optimized building. Moreover, the PV capacity can be reduced by 23 % in Guangzhou. The findings of this study provide practical guidance for designing PVAC system coupling with building design and energy storage devices.
作者机构：
[Li, Chuanchang; Li, Yaxi; Li, Mu; Xie, Baoshan; Peng, Meicheng; Li, CC] Changsha Univ Sci & Technol, Sch Energy & Power Engn, Key Lab Renewable Energy Elect Technol Hunan Prov, Changsha 410114, Peoples R China.
通讯机构：
[Li, CC ] C;Changsha Univ Sci & Technol, Sch Energy & Power Engn, Key Lab Renewable Energy Elect Technol Hunan Prov, Changsha 410114, Peoples R China.
关键词：
Refrigerated transportation;Sodium carbonate decahydrate;Phase change materials;Cold energy storage
摘要：
The technology of cold energy storage with phase change materials (PCMs) can effectively reduce carbon emissions compared with the traditional refrigerated transportation mode, so it has attracted increasing attention. Using sodium carbonate decahydrate (SCD) as the cold energy carrier, and improving its performance through additives, the SCD composite PCM for refrigerated transportation of fresh fruits was successfully prepared. Its melting temperature was 9.3 degrees C, melting latent heat was 90.7 J/g, and the degree of supercooling was 5 degrees C. The phase and microstructure of the prepared PCMs were investigated by XRD and SEM respectively, which proved the materials had good compatibility. The application experiment showed that the cold storage plate filled with prepared PCM could storage cold energy at an ambient temperature of 2 degrees C, and the prepared PCM could significantly prolong the preservation time of fruits.
摘要：
Improved depth is of fundamental importance for earth-filled foundations with dynamic compaction (DC) and is closely relevant to the mechanical characteristics of earth fillers under impact load. This study carried out numerical DC tests on fine-grained soil to estimate the improved depth more easily and accurately. The filler's multiscale responses, including crater depth and porosity, were evaluated. Results showed that a heavier tamper weight with a lower drop distance was relatively more efficient in densifying soil fillers, although the tamping energy (MH1.0) and tamping momentum (MH0.5) were the same; however, contrary results were observed under the same value of MH0.2. In addition, three different combinations of M and H led to similar soil responses under the same value of MH0.3, which is thus recommended as the new index to estimate the improved depth and densification efficiency of DC. A mechanistic analysis found that M contributes more than H to compact soil fillers, which can be quantified by contribution ratio alpha. Moreover, large-scale field DC tests confirmed the findings.
摘要：
This study conducted a series of trapdoor tests to investigate the soil arching effect in cohesive soils, which are commonly encountered in engineering practice but have not been previously investigated in the existing literature. A detailed discussion was proposed to explore the transformations of soil arching, particle movements, and stress redistribution occurring over the trapdoor. Comprehensive parametric studies were conducted, with a particular focus on trapdoor widths and filling heights, to analyze the effects of different influential factors on soil arching. An advanced digital image correlation (DIC) technique was employed to monitor the displacement field during the test. Through the combination of high-precision displacement nephograms and earth pressure values, the entire evolution process of soil arching was comprehensively revealed, including its initial appearance, gradual development, and stabilization. Typical fracture surfaces were observed in the tests, resulting in a significant discrepancy compared to the trapdoor tests conducted in cohesionless soils. The aforementioned research not only provides a deeper insight into how soil arching will evolve with varying influential factors but will also help engineers to better use the soil arching effect of cohesive soils in the design phase.
作者机构：
[Xu, Zhuye; Zhang, Renshuai; Tang, Xiao; Xu, ZY] Lanzhou Jiaotong Univ, Sch New Energy & Power Engn, Lanzhou 730070, Peoples R China.;[Xu, Zhuye; Xu, ZY] Changsha Univ Sci & Technol, Natl Engn Res Ctr Highway Maintenance Technol, Changsha 410114, Hunan, Peoples R China.;[Xu, Zhuye; Zhang, Renshuai; Tang, Xiao; Xu, ZY] Lanzhou Jiaotong Univ, Sch New Energy & Power Engn, Intelligent Bldg & Bldg Automat Lab, Lanzhou 730070, Peoples R China.;[Ma, Changxi] Lanzhou Jiaotong Univ, Sch Transportat, Lanzhou 730070, Peoples R China.
通讯机构：
[Xu, ZY ] L;Lanzhou Jiaotong Univ, Sch New Energy & Power Engn, Lanzhou 730070, Peoples R China.;Changsha Univ Sci & Technol, Natl Engn Res Ctr Highway Maintenance Technol, Changsha 410114, Hunan, Peoples R China.;Lanzhou Jiaotong Univ, Sch New Energy & Power Engn, Intelligent Bldg & Bldg Automat Lab, Lanzhou 730070, Peoples R China.
关键词：
Automobiles;Predictive models;Convolutional neural networks;Real-time systems;Gray-scale;Urban areas;Image edge detection;Deep learning;Key words deep learning;parking space detection;image processing;convolutional neural network;long short-term memory neural network
摘要：
With the continuous acceleration of urbanization, the parking problem is becoming increasingly serious. How to better manage parking resources has become an urgent problem to be solved in urban development. In this context, according to the historical data and real-time video data collected by the parking camera, this paper proposes an algorithm for parking space detection and state recognition. Through image preprocessing, region of interest selection, Hough line detection, and parking information recognition of the input test image, an intelligent parking space detection model is constructed, which improves the utilization rate of parking space and reduces the management cost. On this basis, according to the free parking space data obtained by the detection algorithm, a short-term demand prediction algorithm for on-road parking based on Convolutional Neural Network (CNN) and Long Short-Term Memory Neural Network (LSTM) was proposed. Through the preprocessing of input parking space data, time vector transformation, data separation, model training, and prediction, the parking demand data is predicted and analyzed. By comparing the prediction results of multiple models, it was found that the CNN-LSTM prediction model had the best model stability and goodness of fit, the lowest Mean Error (MAE) and Root Mean Square Error (RMSE), the errors of working days were 13.301 and 21.156, and the errors of rest days were 12.573 and 20.739, respectively. It shows that CNN-LSTM can effectively capture the time and spatial feature information of parking lot free parking space data, and the prediction accuracy is good, which can be used to predict the number of free parking spaces in parking lots.
通讯机构：
[Yao, Y ] C;Changsha Univ Sci & Technol, Sch Hydraul & Environm Engn, Changsha 410114, Peoples R China.
关键词：
Acoustic wave propagation;Multi-fluids;Weak-form meshfree method;Penalty function method;Continuity condition
摘要：
In this work, we focus on the derivation of the weak-form for meshfree methods in analyzing the time-domain acoustic wave propagation in multi-fluids. Due to the employment of meshfree shape functions not restricted to a local background cell, the continuity condition for acoustic particle velocity cannot be spontaneously satisfied, leading to inaccurate simulations of acoustic wave upon the interface. Thus, the penalty function method is utilized here in the weak-form for meshfree methods in order to cure this discontinuity issue without introducing any addition degrees of freedom. By conducting a number of numerical analyses, the numerical results obtained from a radial point interpolation meshfree method are in accord with the analytical solutions and the numerical results of bilinear and quadratic finite elements, validating the effectiveness of the weak-form derived for meshfree methods. Moreover, the numerical accuracy of the used meshfree method can surpass those of bilinear and quadratic finite elements when the same sets of nodes are employed, especially for relatively high frequencies.
摘要：
Electroencephalography (EEG) is commonly used for measuring brain activity information due to its high temporal resolution. However, it severely suffers from noises produced by non-brain sources, called EEG artifacts. Ocular, muscle, and power line artifacts are the most common ones. In this paper, a novel two-stage automatic artifact removal method is proposed to handle different artifacts under miscellaneous EEG applications. Empirical wavelet transform (EWT), canonical correlation analysis (CCA), and an outlier detection algorithm, isolation forest constitute the pipeline. In the first stage, EEG data are decomposed by CCA and preliminary purified by isolation forest. In the second stage, a further decomposition of the EEG data is conducted using EWT and CCA, followed by removal of irrelevant components using isolation forest. We thoroughly evaluate the qualitative and quantitative performance of the proposed method on multiple datasets. Experiment results show that the proposed method can effectively remove artifacts under complex conditions and different signal-to-noise ratios. Ablation studies and comparison results demonstrate the significance of the two-stage combination, which outperforms single-stage methods and state-of-the-art methods. This paper explores the potential for a fully data-driven and adaptive way for robust artifact removal in various EEG applications.
摘要：
Retrogradation of fresh rice noodles (FRNs) is detrimental to the customers’ acceptance of these rice products. In this study, combined experimental analysis and molecular dynamics simulation were used to explore the mechanism underlying soybean protein isolate (SPI, 0–12%) inhibiting the retrogradation of FRNs. The FRNs showed fast retrogradation and hardening at the 1st day, whereas the aging rate was slowed down in the presence of SPI during the 5-day storage. This was due to that SPI increased the water-holding capacity and buffered the acidity of the system. Differential scanning calorimetry showed that SPI prevented the formation of ordered starch structures during retrogradation. From the results of molecular dynamics simulation, it was found that 7S of SPI could reduce the deformation degree of starch to a lower extent than 11S in the gelatinization process at 95 °C. However, 11S elicited stronger non-covalent interactions with starch than 7S during retrogradation at 4 °C, thus stabilizing starch structures and inhibiting retrogradation of FRNs. Our study illustrated a facile approach to inhibit the retrogradation of FRNs, which would properly broaden the application scenarios of traditional products with enhanced shelf life and taste attributes.
作者：
Wang, Ziwei;Hu, Lin;Wang, Fang;Lin, Miao;Wu, Ning
期刊：
Sustainability,2024年16(5) ISSN：2071-1050
通讯作者：
Hu, L
作者机构：
[Hu, Lin; Wang, Ziwei; Hu, L; Wang, Fang] Changsha Univ Sci & Technol, Sch Automot & Mech Engn, Changsha 410114, Peoples R China.;[Lin, Miao] China Automobile Technol Res Ctr Co Ltd, Tianjin 300300, Peoples R China.;[Wu, Ning] Ruhr Univ, Inst Traff Engn & Management, D-44801 Bochum, Germany.
通讯机构：
[Hu, L ] C;Changsha Univ Sci & Technol, Sch Automot & Mech Engn, Changsha 410114, Peoples R China.
关键词：
traffic safety;injury severity;intersection;random parameters logit model
摘要：
Examining 1192 intersection car and two-wheeled vehicle collision accidents from the China In-Depth Accident Study (CIDAS) database, this study employs population density heat maps for precise assessment of surrounding population densities at accident sites. The K-Medoid clustering algorithm and silhouette coefficient were used to classify accidents into two distinct groups based on population density. Subsequent application of the random parameter logit model revealed key contributing factors to these accidents in varying population densities. The results show notable differences in factors such as collision direction of two-wheeled vehicles, types of accident conflict, road conditions, and traffic flow, depending on the population density. Based on these conclusions, the research can inform differentiated risk prediction for two-wheeled vehicle accidents at intersections and provide insights for intersection design in various population density scenarios.
摘要：
Corrosion caused by salt-spray and fatigue failure resulting from cyclic sea wave and strong storm are common degradation problem in offshore structural steels, and their interaction would accelerate service failure of these steels. In this work, therefore, FeCoNiCrMn high-entropy alloy (HEA) coatings were first prepared on 321 steels to simultaneously improve their corrosion and fatigue resistance. Then the pre-corrosion in salt-spray environment and subsequent high-cycle fatigue (HCF) tests were conducted on both coated and uncoated steel. The same HCF tests were also performed on the uncorroded steel specimens to reveal the influence of pre-corrosion on their fatigue resistance. The results showed that the corrosion and fatigue resistance of coated steel were both improved, which should be attributed to the higher strength, dislocation motivity and formation rate of corrosion film of the HEA coating. Moreover, pre-corrosion would decrease the mechanical properties and depth of the HEA coating, leading to significant damage to the fatigue resistance of coated steel. However, after pre-corrosion, the fatigue life of uncoated and coated steel was decreased by 18.2 %–38.8 % and 34.4 %–42.6 % at different stress amplitudes, respectively, showing the significant protective effect of HEA coatings against the pre-corrosion damage to fatigue life of offshore 321 steel.
作者机构：
[Weng, Zheng; Zhou, Jiang; Li, Jiaqi; Chen, Gen; Qin, Zuosu; Chen, G; Zhang, Ning; Zhou, J] Cent South Univ, Sch Mat Sci & Engn, Key Lab Elect Packaging & Adv Funct Mat Hunan Prov, Changsha 410083, Peoples R China.;[Zhang, Ying; Liu, Xiaohe] Zhengzhou Univ, Zhongyuan Crit Met Lab, Zhengzhou 450001, Peoples R China.;[Jia, Chuankun] Changsha Univ Sci & Technol, Coll Mat Sci & Engn, Changsha 410114, Peoples R China.
通讯机构：
[Chen, G; Zhou, J ] C;Cent South Univ, Sch Mat Sci & Engn, Key Lab Elect Packaging & Adv Funct Mat Hunan Prov, Changsha 410083, Peoples R China.
关键词：
metal-organic frameworks;lithium metal battery;separator;electrolyte
摘要：
In view of novel materials in the field of lithium metal batteries (LMBs), metal-organic frameworks (MOFs) have attracted extensive research interest owing to their controllable pore size, unsaturated metal sites and multifunctional organic groups. A variety of MOFs have been elaborately calculated and synthesized to be applied as separator coating, electrolyte modulators and solid-state electrolyte fillers in LMBs. In this mini-review, we summarize the mechanism of MOFs to limit the migration of anions, improve the Li-ion transference number and prolong the lifespan of LMBs. Suitable pore structure of MOFs can physically restrict the movement of Li+. Unsaturated metal sites can adsorb anions by electrostatic interaction. In addition, multifunctional organic functional groups that limit the migration of anions are discussed. Finally, the key challenges and perspectives in the development direction of MOFs-based separators and electrolytes are further elaborated.
