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Advances in sodium-ion batteries at low-temperature: Challenges and strategies

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Journal of Energy Chemistry 2024年第3期90卷 518-539,I0012页

作者： Haoran Bai Xiaohui Zhu Huaisheng Ao Guangyu He Hai Xiao Yinjuan Chen Key Laboratory of advanced Catalytic Materials and Technology Advanced Catalysis and Green Manufacturing Collaborative Innovation CenterChangzhou UniversityChangzhou 213164JiangsuChina department of Chemistry Tsinghua UniversityBeijing 100084China

With the continuing boost in the demand for energy storage,there is an increasing requirement for batteries to be capable of operation in extreme environmental ***-ion batteries(SIBs) have emerged as a highly promising energy storage solution due to their promising performance over a wide range of temperatures and the abundance of sodium resources in the earth's *** to lithiumion batteries(LIBs),although sodium ions possess a larger ionic radius,they are more easily desolvated than lithium *** rthermore,SIBs have a smaller Stokes radius than lithium ions,resulting in improved sodium-ion mobility in the ***,SIBs demonstrate a significant decrease in performance at low temperatures(LT),which constrains their operation in harsh weather *** the increasing interest in SIBs,there is a notable scarcity of research focusing specifically on their mechanism under LT *** review explores recent research that considers the thermal tolerance of SIBs from an inner chemistry process perspective,spanning a wide temperature spectrum(-70 to100℃),particularly at LT *** addition,the enhancement of electrochemical performance in LT SIBs is based on improvements in reaction kinetics and cycling stability achieved through the utilization of effective electrode materials and electrolyte ***,the safety concerns associated with SIBs are addressed and effective strategies are proposed for mitigating these ***,prospects conducted to extend the environmental frontiers of commercial SIBs are discussed mainly from three viewpoints including innovations in materials,development and research of relevant theoretical mechanisms,and intelligent safety management system establishment for larger-scale energy storage SIBs.

关键词： Low-temperature Sodium-ion batteries Reaction kinetics Cycle stability Safety concerns of Sodium-ion batteries

Formation of intermetallic compound at interface between rare earth elements and ferritic-martensitic steel by fuel cladding chemical interaction

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Journal of Rare Earths 2012年第6期30卷 599-603页

作者： Jun Hwan Kim Byoung Oon Lee Chan Bock Lee Seung Hyun Jee Young Soo Yoon advanced fuel development Division Korea Atomic Energy Research InstituteP.O.Box 105YuseongDaejeon305-600Republic of Korea department of Mate-rials Science and Engineering Yonsei University134 Sinchon DongSeoul120-749Republic of Korea

The intermetallic compounds formation at interface between rare earth elements and clad material were investigated to demonstrate the effects of rare earth elements on fuel-cladding chemical interaction （FCCI） behavior. Mischmetal （70Ce-30La） and Nd were prepared as rare earth elements. Diffusion couple testing was performed on the rare earth elements and cladding （9Cr2W steel） near the operation temperature of （sodium-cooled fast reactor） SFR fuel. The performance of a diffusion barrier consisting of Zr and V metallic foil against the rare earth elements was also evaluated. Our results showed that Ce and Nd in the rare earth elements and Fe in the clad material interdiffused and reacted to form intermetallic species according to the parabolic rate law, describing the migration of the rare earth element. The diffusion of Fe limited the reaction progress such that the entire process was governed by the cubic rate law. Rare earth materials could be used as a surrogate for high burnup metallic fuels, and the performance of the barrier material was demonstrated to be effective.

关键词： intermetallic compound sodium-cooled fast reactor (SFR) metallic fuel fuel-cladding chemical interaction (FCCI) rare earths Barrier

Chaotic state as an output of vacuum state evolving in diffusion channel and generation of displaced chaotic state for quantum controlling

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Chinese Physics B 2020年第12期29卷 238-243页

作者： Feng Chen Wei Xiong Bao-Long Fang Hong-Yi Fan Institute of advanced manufacturing Engineering Hefei UniversityHefei 230022China department of Material Science and Engineering University of Science and Technology of ChinaHefei 230026China

We show that chaotic state can be produced as an output of vacuum state evolving in diffusion channel,while displaced chaotic state is output of a coherent state evolving in diffusion *** also introduce the thermo vaccum state for the displaced chaotic state and evaluate the average photon *** displaced chaotic state may be used exhibiting quantum controlling.

关键词： displaced chaotic state quantum controlling

Indirect approach for predicting cutting force coefficients and power consumption in milling process

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Advances in manufacturing 2022年第1期10卷 101-113页

作者： Kai-Ning Shi Ning Liu Cong-Le Liu Jun-Xue Ren Shan-Shan Yang Wei Chit Tan Key Laboratory of High Performance manufacturing for Aero Engine Department of Mechanical EngineeringMinistry of Industry and Information TechnologyNorthwestern Polytechnical UniversityXi’an 710072People’s Republic of China Engineering Research Centre of advanced manufacturing Technology for Aero Engine Department of Mechanical EngineeringMinistry of EducationNorthwestern Polytechnical UniversityXi’an 710072People’s Republic of China Virtual manufacturing Group Smart Manufacturing DivisionAdvanced Remanufacturing and Technology Centre3 Cleantech Loop#01-01CleanTech TwoSingapore 637143Singapore

Accurate energy consumption modeling is an essential prerequisite for sustainable ***,cutting-power-based models have garnered significant attention,as they can provide more comprehensive information regarding the machining energy consumption ***,their implementation is challenging because new cutting force coefficients are typically required to address new workpiece ***,cutting force coefficients are calculated at a high operation cost as a dynamometer must be ***,a novel indirect approach for estimating the cutting force coefficients of a new tool-workpiece pair is proposed *** key idea is to convert the cutting force coefficient calculation problem into an optimization problem,whose solution can be effectively obtained using the proposed simulated annealing ***,the cutting force coefficients for a new tool-workpiece pair can be estimated from a pre-calibrated energy consumption *** experiments performed using different machine tools clearly demonstrate the effectiveness of the developed *** studies with measured cutting force coefficients reveal the decent accuracy of the approach in terms of both energy consumption prediction and instantaneous cutting force *** proposed approach can provide an accurate and reliable estimation of cutting force coefficients for new workpiece materials while avoiding operational or economic problems encountered in traditional force monitoring methods involving ***,this study may significantly advance the development of sustainable manufacturing.

关键词： Sustainable manufacturing Cutting force coefficients Energy consumption Machining processSimulated annealing

Recent progress in solution assembly of 2D materials for wearable energy storage applications

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Journal of Energy Chemistry 2021年第11期30卷 27-42,I0002页

作者： Dong Zhou Liang Zhao Bo Li department of Mechanical Engineering Villanova UniversityVillanovaPA 19085USA Hybrid Nano-Architectures and advanced manufacturing Laboratory Villanova UniversityVillanovaPA 19085USA

Wearable energy storage devices are desirable to boost the rapid development of flexible and stretchable electronics. Two-dimensional (2D) materials, e.g., graphene, transition metal dichalcogenides and oxides, and MXenes, have attracted intensive attention for flexible energy storage applications because of their ultrathin 2D structures, high surface-to-volume ratio, and unique physical/chemical properties. To achieve commercialization of 2D material-based wearable energy storage devices (2DM-WESDs), scalable and cost-efficient manufacturing is a critical challenge. Among existing manufacturing technologies, solution-based assembly strategies show strong potential to achieve low-cost and scalable production. A timely review of the recent progress in solution-based assembly strategies and the resultant 2DM-WESDs will be meaningful to guide the future development of 2DM-WESDs. In this review, first, a brief introduction of exfoliation and solution preparation of 2D material species from bulk materials is discussed. Then, the solution-based assembly strategies are summarized, and the advantages and disadvantages of each method are compared. After that, two major categories of 2DM-WESDs, supercapacitor and battery, are discussed, emphasizing their state-of-the-art energy storage performances and flexibilities. Finally, insights and perspectives on current challenges and future opportunities regarding the solution assembly of 2DM-WESDs are discussed.

关键词： 2D materials Solution assembly Wearable Energy storage

Study on laser welded heat-affected zone in new ultralow carbon bainitic steel

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Journal of University of Science and Technology Beijing 2007年第2期14卷 136-140页

作者： Lin Zhao Wuzhu Chen Xudong Zhang Jiguo Shan department of Mechanical Engineering Tsinghua University Beijing 100084 China Key Laboratory for advanced manufacturing by Materials Processing Technology Ministry of Education Beijing 100084 China

800 MPa grade ultralow carbon bainitic （NULCB） steel is the recently developed new generation steel, which was produced by thermo mechanical controlled processing ＆ relaxation-precipitation controlling transformation （TMCP＆RPC） tech- nique. The microstructure and the mechanical properties of the heat-affected zone （HAZ） in NULCB steel under laser welding conditions were investigated by using a Gleeble-1500 thermal simulator. The experimental results indicate that the simplex microstructure in the HAZ is granular bainite that consists of bainite-ferrite （BF） lath and M-A constituent when the cooling time from 800 to 500℃ （t8/5） is 0.3-30 s, and the M-A constituent consists of twinned martensite and residual austenite. As t8/5 increases, the hardness and tensile strength of HAZ decreases, but they are higher than that of the base metal, indicating the absence of softened zone after laser welding. The impact toughness of HAZ increases at first and then decreases when t8/5 increases. The impact energy of HAZ is much higher than that of the base metal when t8/5 is between 3 and 15 s. It indicates that excellent low temperature toughness can be obtained under appropriate laser welding conditions.

关键词： ultralow carbon bainitic steel laser welding heat-affected zone microstructure mechanical properties

Aerosol jet printed capacitive strain gauge for soft structural materials

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npj Flexible Electronics 2020年第1期4卷 279-287页

作者： Kiyo T.Fujimoto Jennifer K.Watkins Timothy Phero Doug Litteken Kevin Tsai Takoda Bingham Kshama Lakshmi Ranganatha Benjamin C.Johnson Zhangxian Deng Brian Jaques David Estrada Center for advanced Energy Studies Boise State UniversityIdaho FallsIDUSA Micron School of Materials Science and Engineering Boise State UniversityBoiseIDUSA Measurement Sciences department Idaho National LaboratoryIdaho FallsIDUSA department of advanced fuel manufacturing and development Idaho National LaboratoryIdaho FallsIDUSA NASA Johnson Space Center HoustonTXUSA department of Mechanical and Biomedical Engineering Boise State UniversityBoiseIDUSA department of Electrical and Computer Engineering Boise State UniversityBoiseIDUSA

Soft structural textiles,or softgoods,are used within the space industry for inflatable habitats,parachutes and decelerator *** the safety and structural integrity of these systems occurs through structural health monitoring systems(SHM),which integrate non-invasive/non-destructive testing methods to detect,diagnose,and locate ***/load monitoring of these systems is limited while utilizing traditional strain gauges as these gauges are typically stiff,operate at low temperatures,and fail when subjected to high strain that is a result of high loading classifying them as unsuitable for SHM of soft structural *** this work,a capacitance based strain gauge(CSG)was fabricated via aerosol jet printing(AJP)using silver nanoparticle ink on a flexible polymer *** strain gauges were then compared to a commercially available high elongation resistance-based strain gauge(HE-RSG)for their ability to monitor strained Kevlar straps having a 26.7 kN(6 klbf)***,static and cyclic loads were used to characterize both types of strain monitoring *** CSGs demonstrated superior performance for high elongation strain measurements when compared to commonly used HE-RSGs,and were observed to operate with a gauge factor of 5.2 when the electrode arrangement was perpendicular to the direction of strain.

关键词： strain gauge structural

Design and Optimization of Interior Permanent Magnet(IPM)Motor for Electric Vehicle Applications

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CES Transactions on Electrical Machines and Systems 2023年第2期7卷 202-209页

作者： Lavanya Balasubramanian Nurul Azim Bhuiyan Asad Javied Ashraf A.Fahmy Fawzi Belblidia Johann Sienz the advanced Sustainable manufacturing Technologies(ASTUTE 2020)operation Swansea UniversityUK the department of Electrical Power and Machines Helwan UniversityHelwan 11795Egypt

This paper explores some design parameters of an interior permanent magnet synchronous motor that contribute to enhancing motor *** geometry parameters such as magnet dimension,machine diameter,stator teeth height,and number of poles are analyzed to compare overall torque,power,and torque ripples in order to select the best design parameters and their ***,an open-source software,is used to design and optimize the motor for electric vehicle *** optimization with Non-dominated Sorting Genetic Algorithm(NSGA-Ⅱ),two designs A and B were obtained for two objective functions and the corresponding torque ripples values of the design A and B were later reduced by 32%and 77%.Additionally,the impact of different magnet grades on the output performances is analyzed.

关键词： Electric vehicles IPM motor Magnet grade Optimization Permanent magnet motor Torque ripple

Modeling corrosion behavior of gas tungsten arc welded titanium alloy

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中国有色金属学会会刊：英文版 2007年第4期17卷 676-680页

作者： M. Balasubramanian V. Jay abalan V. Balasubramanian department of Mechanical Engineering Maamallan Institute of Technology Anna University department of manufacturing Engineering Anna University department of manufacturing Engineering Annamalai University

The pitting corrosion characteristics of pulse TIG welded Ti-6Al-4V titanium alloy in marine environment were explained. Besides the rapid advance of titanium metallurgy, this is also due to the successful solution of problems associated with the development of titanium alloy welding. The preferred welding process of titanium alloy is frequently gas tungsten arc(GTA) welding due to its comparatively easier applicability and better economy. In the case of single pass GTA welding of thinner section of this alloy, the pulsed current has been found beneficial due to its advantages over the conventional continuous current process. The benefit of the process is utilized to obtain better quality titanium weldments. Four factors, five levels, central composite, rotatable design matrix are used to optimize the required number of experiments. The mathematical models have been developed by response surface method(RSM). The results reveal that the titanium alloy can form a protective scale in marine environment and is resistant to pitting corrosion. Experimental results are provided to illustrate the proposed approach.

关键词：钛合金脉冲电流钨电极惰性气体保护焊腐蚀行为