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An in-situ cross-linked network PMMA-based gel polymer electrolyte with excellent lithium storage performance

Journal of Materials Science & technology 2024年第32期199卷 197-205页

作者： Shaopan Qin Min Wu Hongshun Zhao Jianbin Li Maoyin Yan Yurong Ren Yanli Qi School of Materials Science and Engineering Jiangsu Province Engineering Research Center of Intelligent Manufacturing Technology for the New Energy Vehicle Power BatteryChangzhou Key Laboratory of Intelligent Manufacturing and Advanced Technology for Power BatteryChangzhou UniversityChangzhou 213164China

Gel polymer electrolytes(GPEs)effectively combine the advantages of high ionic conductivity and re-duce the risk of leakage associated with *** this study,a chemically cross-linked gel polymer electrolyte was prepared by in-situ polymerization using polymethyl methacrylate(PMMA)as a matrix and neopentyl glycol diacrylate(NPGDA)as cross-linking *** cross-linked structure of the GPE was preliminarily investigated,as well as the influence of the degree of cross-linking on its phys-ical *** GPE exhibited a superior conductivity of 1.391 mS cm^(-1) at 25℃.Herein,the Li|GPE|LiNi_(0.8) Co_(0.1) Mn_(0.1) O_(2) cell has an excellent capacity retention rate of 80.7%after 150 cycles at 0.5 C in addition to a high discharge specific capacity of 203 mAh g^(-1).The structure of the cathode ma-terial is shielded from the production of byproducts during the charging and discharging of lithium-ion batteries by the cross-linked PMMA GPE.

关键词： Lithium-ion batteries In-suit polymerization Gel polymer electrolyte Polymethyl methacrylate Cross-linked network

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15.13%Sr-doped CsPbI_(3) quantum dots with near-unity quantum yield via surface ligand compensation

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Nano Research 2025年第4期18卷 534-543页

作者： Yi Peng Wanzhong Gu Yuhui Dong Yucong Ji Danni Yan Ziyun Lin Li Zhang Yousheng Zou Haibo Zeng MIIT Key Laboratory of Advanced Display Materials and Devices Jiangsu Province Engineering Research Center of Quantum Dot DisplaySchool of Materials Science and EngineeringInstitute of Optoelectronics and NanomaterialsNanjing University of Science and TechnologyNanjing 210094China

Sr-doping of perovskite quantum dots(QDs)is a promising strategy to reduce Pb content and improve optical performance and ***,excessive Sr introduces new defects that degrade photoluminescence quantum yield(PLQY).Therefore,it is a challenge to balance high optical performance with high doping concentration for the preparation of environmentally friendly perovskite *** this study,we report the highest Sr/Pb ratios Sr-doped CsPbI_(3) QDs(15.13%)with a near-unity *** balance between high PLQY and high Sr-doping rate is achieved through the introduction of oleylammonium iodide(OAmI)ligand compensation during the anti-solvent purification process,which can form an iodine-enriched environment and effectively passivates the surface defects of QDs caused by excessive ***,the Sr-doped CsPbI_(3) QDs exhibit superior stability in environments with high temperature and humidity or direct contact with *** strategy provides a novel approach for the preparation of lead-less and lead-free QDs with superior optical performance and stability,offering a potential solution for environmentally friendly applications.

关键词： CsPbI_(3)quantum dots Sr-doping ligand compensation photoluminescence quantum yield environmental stability

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Hybrid 3D printed three-axis force sensor aided by machine learning decoupling

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International Journal of Smart and Nano Materials 2024年第2期15卷 261-278页

作者： Guotao Liu Peishi Yu Yin Tao Tao Liu Hezun Liu Junhua Zhao Jiangnan Key Laboratory of Advanced Food Manufacturing Equipment and Technology School of Mechanical EngineeringJiangnan UniversityWuxiPR China Jiangsu Province Engineering Research Center of Micro-Nano Additive and Subtractive Manufacturing Institute of Advanced TechnologyJiangnan UniversityWuxiPR China

Identification of magnitude and orientation for spatially applied loading is highly desired in the fields of not only the machinery components but also human-machine *** the fact that the 3-axis force sensor with different structures has been proposed to measure the spatial force,there are still some common limitations including the multi-step manufacturing-assembly processes and complicated testing of decoupling ***,we propose a rapid fabrication strategy with low-cost to achieve high-precision 3-axis force *** sensor is designed to compose of structural Maltese cross base and sensing *** is directly fabricated within one step by a hybrid 3D printing technology combining deposition modeling(FDM)with direct-ink-writing(DIW).In particular,a machine learning(ML)model is used to convert the strain signal to the force *** of a mount of calibration tests,this ML model is trained by sufficient simulation data based on programmed batch finite element *** sensor is capable of continuously identifying a spatial force with varying magnitude and orientation,which successfully quantify the applied force of traditional Chinese medicine physiotherapy including Gua Sha and *** work provides insight for design and rapid fabrication of multi-axis force sensors,as well as potential applications.

关键词： Hybrid 3D printing 3-axis force sensor machine learning nonlinear decoupling

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Effect of removing Al and Ti elements on peak flow stress of nickel-based heat-resistant alloy 617

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Journal of Iron and Steel Research International 2023年第2期30卷 384-391页

作者： Chen Dong Zheng-zong Chen Zheng-dong Liu Han-sheng Bao Zhen Liu Zheng-jun Wang Faculty of Mechanical and Material Engineering Huaiyin Institute of TechnologyHuaian223003JiangsuChina Jiangsu Key Laboratory of Advanced Manufacturing Technology Huaiyin Institute of TechnologyHuaian223003JiangsuChina Institute for Special Steels Central Iron and Steel Research Institute Co.Ltd.Beijing100081China

The hot deformation behavior and the microstructure characteristics of alloy 617 and alloy C-HRA-2 were compared and *** removal of Al and Ti elements has a significant change in the hot deformation of the alloy,and there are two opposite effects on the flow stress before and after *** results show that the removal of Al and Ti elements increases the flow stress of the alloy under high temperature or low strain rate deformation *** is mainly due to the increase in the stacking fault energy of the alloy so that the alloy contains a higher twin boundary fraction after dynamic recrystallization(DRX).However,before DRX occurs,that is,at low temperature and high strain rate,the flow stress of this alloy is relatively *** is due to the reduction in Peierls-Nabarro stress,making the alloy more prone to dislocation slip.

关键词： Peak flow stress Nickel-based heat-resistant alloy Slip band Stacking fault energy

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Dual-Functional Organotelluride Additive for Highly Efficient Sulfur Redox Kinetics and Lithium Regulation in Lithium–Sulfur Batteries

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Energy & Environmental Materials 2023年第3期6卷 126-133页

作者： Wei Zhang Fenfen Ma Qiang Wu Ziqi Zeng Wei Zhong Shijie Cheng Xin Chen Jia Xie State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China GuSu Laboratory of Materials SuzhouJiangsu 215123China State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China

High energy density and low cost made lithium–sulfur(Li–S)batteries appealing for the next-generation energy storage ***,their commercial viability is seriously challenged by serious polysulfide shuttle effect,sluggish sulfur kinetics,and uncontrollable dendritic Li ***,a dual-functional electrolyte additive,diphenyl ditelluride(DPDTe)is reported for Li–S *** sulfur cathodes,DPDTe works as a redox mediator to accelerate redox kinetics of sulfur,in which Te radical-mediated catalytic cycle at the solid–liquid interface contributes significantly to the whole *** lithium anodes,DPDTe can react with lithium metal to form a smooth and stable organic–inorganic hybrid solid-electrolyte interphase(SEI),enabling homogeneous lithium deposition for suppressing dendrite ***,the Li–S battery with DPDTe exhibits remarkable cycling stability and superb rate capability,with a high capacity up to 1227.3 mAh g^(-1)and stable cycling over 300 ***,a Li–S pouch cell with DPDTe is evaluated as the proof of *** work demonstrates that organotelluride compounds can be used as functional electrolyte additives and offers new insights and opportunities for practical Li–S batteries.

关键词： electrolyte additive Li anode Li2 S deposition Li–S battery sulfur kinetics

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Recent advances of high performance SiO_(x)(0

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Materials Reports(Energy) 2024年第2期4卷 23-33页

作者： Wenwen Deng Ying Zhou Naiqi Hu Shaocong Ni Weihang Zhang Chang Ming Li School of Material Science and Engineering Suzhou University of Science and TechnologySuzhou215009PR China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin300071PR China State Key Laboratory of Coordination Chemistry MOE Key Laboratory of Mesoscopic ChemistryMOE Key Laboratory of High Performance Polymer Materials and TechnologyJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry&Chemical EngineeringNanjing UniversityNanjing210023PR China

SiOx is attractive as an anode material for lithium-ion batteries(LIBs)due to its high capacity,low cost,and relatively higher cyclic stability than Si ***,the intrinsic low electronic conductivity,low initial coulombic efficiency(ICE),and volume expansion during cycles hinder its *** this review,we summarize advances in high performance SiOx anodes,mainly from two aspects:active material and *** future perspective is investigated at the end of this *** review provides strategical guidance for developing high performance SiOx anodes.

关键词： SiOx Anode High-performance Active material Binders

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A Stability-Enhanced Intelligent Absorbent Pad by Tannic Acid Co-pigmentation for Pork Freshness Monitoring

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Food and Bioprocess technology 2025年 1-17页

作者： Wu, Qiong Yin, Cheng Fan, Xiaofen Qian, Jing Wang, Liqiang Packaging Engineering Department School of Mechanical Engineering Jiangnan University No. 1800 Lihu Avenue Jiangsu Wuxi214122 China Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology School of Mechanical Engineering Jiangnan University Jiangsu Wuxi214122 China

In order to improve the stability of anthocyanins in freshness indicator packaging, this study initially co-pigmented blueberry anthocyanins (BA) with tannic acid (TA). Subsequently, fiber absorbent pads were soaked in the treated solutions to create stable freshness indicator pads. By investigating the effects of TA addition on both the BA solution and the pads properties, the results revealed that TA significantly enhanced the light stability, thermal stability, and pH stability of the BA solution. Fourier transform infrared spectroscopy and X-ray diffraction also showed that co-pigmentation could promote the molecular interaction between BA and TA to form a more stable structure. Furthermore, the antioxidant properties and swelling capabilities of the pads were significantly improved by varying levels of TA, with the BA-0.5TA group exhibiting 12.20% and 66.88% higher values, respectively, compared to the pure BA group. Notably, the pads containing TA demonstrated excellent color responsiveness to different pH buffer and volatile amines (with 2 min). Meanwhile, the hydrogen bond formed between TA and BA and van der Waals forces effectively improved the storage stability of BA pad. During storage, the BA-0.5TA also changed from bright red to blue-white when pork deterioration was monitored. These results suggest that the BA-TA high stability pad holds promising potential as an intelligent freshness indicator package. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2025.

关键词： Fourier transform infrared spectroscopy

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Water-Driven Malleable,Weldable and Eco-Friendly Recyclable Carbon Fiber Reinforced Dynamic Composites

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Chinese Journal of Chemistry 2024年第5期42卷 516-522页

作者： Ping Yu Qirui Huang Yi Wang Wan Peng Zichen Jia Haiyue Wang Juanjuan Ma Chunyu Wang Xuzhou Yan School of Environmental and Chemical Engineering Jiangsu Key Laboratory of Function Control Technology for Advanced MaterialsJiangsu Ocean UniversityLianyungangJiangsu222005 China School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative MoleculesShanghai Jiao Tong UniversityShanghai200240 China

Traditional carbon fiber-reinforced polymers based on thermoset matrix have been extensively used in the fields of wind turbine blades,automotive sector,and aerospace,among many ***,there is still a major challenge of recycling those polymers due to the high cost and adverse impacts on the *** this work,we apply a polyimine network as matrix,which possess considerable tensile and thermal properties,to prepare the carbon fiber reinforced polyimine materials with trifluoromethyl diphenoxybenzene units(CFRFP)using a prepreg-based compression molding *** CFRFP can be reshaped or reprocessed by heat or with water rapidly,and exhibited multifunction,including welding,chemical recycling,*** unique findings gained from our study will facilitate the manufacturing capability and enrich the types of fiber-reinforced composites.

关键词： Dynamic chemistry Green chemistry Fiber-reinforced composites Fluoropolyimine Welding Reshaping Recycling Renewable resources

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Analysis and Optimization of Unbalanced Magnetic Pull for Eccentric Doubly-Fed Induction Motor

Analysis and Optimization of Unbalanced Magnetic Pull for Ec...

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2024 International Conference on Electrical Machines, ICEM 2024

作者： Kang, Haoyu Wang, Jin Liu, Liyang Sun, Lu Li, Zequan Zhou, Libing Huazhong University of Science and Technology State Key Laboratory of Advanced Electromagnetic Technology Wuhan China Robotics and Autonomous Systems Thrust Guangzhou China

ISBN: (纸本)9798350370607

Due to the frequent switching of working conditions, the large doubly-fed induction motors (DFIMs) utilized in variable speed pumping units are subjected to intense hydraulic shock, thereby significantly increasing the risk of rotor eccentricity fault and posing a substantial threat to the safe operation of the motor. This paper proposes a method for suppressing the unbalanced magnetic force in DFIMs caused by eccentricity, through the injection of excitation compensation current in groups. Firstly, the air gap magnetic field of DFIMs with eccentricity is modeled using the subdomain method. Then, the optimal compensation current is efficiently calculated using the eccentric subdomain model in conjunction with the particle swarm optimization algorithm. Finally, the proposed method is implemented on a 10MW DFIM. By injecting the optimal compensation current, the unbalanced magnetic pulling force caused by eccentricity is effectively suppressed. The comparison with the finite element simulation results showed that the unbalanced magnetic pulling force is reduced by 81.6%. © 2024 IEEE.

关键词： Particle swarm optimization (PSO)

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High recorded color rendering performance of single-structured Ce,Mn:Y_(3)(Al,Sc)_(2)Al_(3)O_(12)phosphor ceramics for high-power white LEDs/LDs

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Journal of advanced Ceramics 2024年第6期13卷 810-820页

作者： Xuanchu Liu Congcong Yang Yanbin Li Chang Min Jian Kang Tianyuan Zhou Chunming Zhou Chaofan Shi Cen Shao Bingheng Sun Wieslaw Strek Hao Chen Le Zhang Jiangsu Key Laboratory of Advanced Laser Materials and Devices School of Physics and Electronics EngineeringJiangsu Normal UniversityXuzhou 221116China Jiangsu Xiyi Advanced Materials Research Institute of Industrial Technology Xuzhou 221400China Xuzhou EAGLED Technology Co. Ltd.Xuzhou 221116China Xuzhou Kangna Advanced Materials Technology Co. Ltd.Xuzhou 221116China Shanghai Institute of Optics Fine Mechanics Chinese Academy of SciencesShanghai 201800China Institute of Low Temperature and Structure Research Polish Academy of SciencesWroclaw 50-422Poland State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China

Achieving a high color rendering index(CRI)and luminous stability in single-structured Ce:Y_(3)Al_(5)O_(12)(Ce:YAG)phosphor ceramics(PCs)is crucial for high-power white light-emitting diodes or laser diodes(LEDs/LDs).However,cyan valleys and insufficient amounts of the red component in the Ce:YAG emission spectra significantly limit their real *** this work,a series of Ce,Mn:Y_(3)(Al,Sc)_(2)Al_(3)O_(12)(Ce,Mn:YSAG)PCs were fabricated by vacuum sintering,and efficient spectral regulation was realized for full-color *** cyan valley was filled by the blueshifted emission peak of Ce^(3+)via Sc^(3+)*** orange‒red emission at approximately 580 nm was effectively supplemented via Mn^(2+)*** particular,CRI of Ce,Mn:YSAG increased from 56.4 to 85.8,a 52%increase compared with that of Ce:YAG under high-power LED excitation,and the operating temperature was stable at approximately 50℃for long working ***,CRI of 80.9 could still be obtained for PC-based white *** results indicated that Ce,Mn:YSAG PC,which has excellent CRI and luminous stability,is an extremely promising color convertor for high-power white LEDs/LDs.

关键词： color rendering index(CRI) color converter Ce:Y_(3)Al_(5)O_(12)(Ce:YAG)phosphor ceramics(PCs) high-power white light-emitting diodes or laser diodes(LEDs/LDs) luminous stability

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