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Enhancing solid-state lithium metal battery performance via indium-based modification of electrolytes and lithium metal surfaces:mechanistic insights and optimization

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Science China Chemistry 2025年第3期68卷 1144-1158页

作者： Zhongkai Wu Chen Liu Ziling Jiang Lin Li Siwu Li Chaochao Wei Qiyue Luo Xia Chen Long Zhang Shijie Cheng Chuang Yu State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China School of Chemistry and Chemical Engineering Huazhong University of Science and TechnologyWuhan 430074China Interdisciplinary Research Center of Smart Sensors Academy of Advanced Interdisciplinary ResearchXidian UniversityXi’an 710126China College of Physics and Energy Fujian Normal UniversityFuzhou 350117China

Argyrodite-based solid-state lithium metal batteries exhibit significant potential as next-generation energy storage ***,their practical applications are constrained by the intrinsic poor stability of argyrodite towards Li metal and exposure to air/***,an indium-involved modification strategy is employed to address these *** optimized doping yields a high Li-ion conductivity of 7.5 mS cm^(-1)for Li_(5.54)In_(0.02)PS_(4.47)O_(0.03)Cl_(1.5)electrolyte,accompanied by enhanced endurance against air/moisture and bare Li *** retains 92.0%of its original conductivity after exposure to air at a low dew point of-60℃in dry ***,a composite layer comprising Li-In alloy and Li F phases is generated on the surface of lithium metal anode via the reaction between InF_(3)and molten *** layer effectively mitigates Li dendrite growth by creating a physical barrier from the robust LiF phase,while the Li-In alloy induces uniform Li-ion deposition and accelerates Li transport dynamics across the interphase between the solid electrolyte/Li ***,the In-doped electrolyte facilitates the in-situ generation of Li-In alloy within its voids,reducing local current density and further inhibiting lithium dendrite ***,the combination of the Li_(5.54)In_(0.02)PS_(4.47)O_(0.03)Cl_(1.5)electrolyte and the InF_(3)@Li anode provides exceptional electrochemical performances in both symmetric cells and solid-state lithium metal batteries across different operating ***,the LiNbO_(3)@LiNi_(0.7)Co_(0.2)Mn_(0.1)O_(2)/Li_(5.54)In_(0.02)PS_(4.47)O_(0.03)Cl_(1.5)/InF_(3)@Li cell delivers a high discharge capacity of 167.8 mAh g^(-1)at 0.5 C under 25℃and retains 80.0%of its initial value after 400 *** work offers a viable strategy for designing functional interfaces with enhanced stability for sulfide-based solid-state lithium batteries.

关键词： Li_(5.5)PS_(4.5)Cl_(1.5)solid electrolyte In_(2)O_(3)dual-doping InF_(3)surface-modification chemical/electrochemical stability electrochemical performance

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Efficiency Estimates of Integrated Two-Speed e-Powertrain System under WLTP Driving Cycle for Electric Vehicle 26

Efficiency Estimates of Integrated Two-Speed e-Powertrain Sy...

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26th International Conference on Electrical Machines and Systems, ICEMS 2023

作者： Feng, Shun Qu, Ronghai Huazhong University of Science and Technology State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic Engineering Wuhan China

ISBN: (纸本)9798350317589

Efficiency is always one of key metrics for electric powertrain system to make the most of battery stored energy and boost electric vehicle's range. This paper presents a systematic method to estimate efficiency capability for an integrated two-speed e-Powertrain system. Overall system is modelled in MATLAB/Simulink. Inverter power, voltage and current requirements are defined from system specifications. Inverter losses, efficiencies and thermal conditions are investigated at switching frequencies of SkHz and 12kHz. With both traction motor and gearbox efficiency maps, 93.2% system peak efficiency and 90.2% Worldwide Harmonized Light Vehicle Test Procedure (WLTP) Class 3b driving cycle efficiency are obtained to verify that design targets are met in simulations. A prototype is built to validate system efficiency performance in the thermal chamber during tests. © 2023 IEEE.

关键词： Traction motors

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Si-doped Li_(6)PS_(5)I with enhanced conductivity enables superior performance for all-solid-state lithium batteries

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Chinese Chemical Letters 2024年第10期35卷 479-484页

作者： Liang Ming Dan Liu Qiyue Luo Chaochao Wei Chen Liu Ziling Jiang Zhongkai Wu Lin Li Long Zhang Shijie Cheng Chuang Yu State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Scienceand TechnologyWuhan430074China School of Chemistry and Chemical Engineering Huazhong University of Science and TechnologyWuhan 430074China State Grid Hubei Electric Power Research Institute Wuhan 430077China College of Physics and Energy Fujian Normal UniversityFuzhou 350117China

Lithium argyrodites Li_(6)PS_(5)X(X=Cl,Br,I)show great potential as solid electrolytes for solid-state lithium batteries due to their high Li-ion conductivities and excellent electrode ***,the relatively low conductivity of Li_(6)PS_(5)I(10^(-6)m S/cm)compared to the other two compositions limits its ***,Si-doped Li_(6.5)P_(0.5)Si_(0.5)S_(5)I electrolyte is designed and synthesized with superior high conductivity of 3.6 mS/*** characterization proves the increase due to the anion disorder and volume expansion caused by ***,the poor interfacial stability between layered oxide cathode Li Ni_(0.6)Co_(0.2)Mn_(0.2)O_(2)and Li_(6.5)P_(0.5)Si_(0.5)S_(5)I inhibits its battery *** introducing Li_(3)InCl6electrolyte in the configuration,the corresponding battery delivers high initial discharge capacity of 150.2m Ah/g and superior cyclability during 250 cycles at 0.5 *** work offers design strategy to obtain Li_(6)PS_(5)I-based electrolytes for high performance solid-state batteries.

关键词： Argyrodite electrolyte Li_(6.5)P_(0.5)Si_(0.5)S_(5)I All-solid-state lithiumbatteries Stability Electrochemical performance

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Influence of Grounded Shield on Cable Broadband Impedance Spectroscopy Measurement 9

Influence of Grounded Shield on Cable Broadband Impedance Sp...

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9th International Conference on Electrical engineering, Control and Robotics, EECR 2023

作者： Ye, Xuebin Zhang, Dandan Mo, Shi School of Electrical and Electronic Engineering State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Key Laboratory of Pulsed Power Technology Ministry of Education Wuhan China

ISBN: (纸本)9781665491204

Fast and accurate cable fault detection is the key to reduce economic losses and improve electrical system reliability. Broadband impedance spectroscopy (BIS) is a new type of cable fault location technology, but the application of BIS technology in the actual field is still less. In particular, the grounding of cable shield in actual operation is lack of consideration is one of the reasons. In view of the grounding situation which widely occurs in the actual cable, this paper analyzes the influence of the cable shield grounding on the measuring circuit, and carries out the measurement experiments of different grounding conditions under the open and short circuit faults at the terminal of the cable. The results show that the grounding of the cable shield does not affect the accuracy of the BIS data. This simplifies the operation and reduces the risk of electric shock during the measurement, which has positive significance for the application of BIS technology in practice. © 2023 IEEE.

关键词： Cables

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DC Overvoltage Analysis of GFM-controlled Wind Farm Connected via MMC-HVDC System Caused by Receiving-end AC Faults 10

DC Overvoltage Analysis of GFM-controlled Wind Farm Connecte...

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10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia

作者： Chen, Siying Cheng, Min Li, Yingbiao Yu, Jiawei Zhu, Yihua Wu, Mingkang Hu, Jiabing Yan, Jianan Huazhong University of Science and Technology State Key Laboratory of Advanced Electromagnetic Technology School of Electrical and Electronic Engineering China Yunnan Power Grid China China

ISBN: (纸本)9798350351330

DC overvoltage occurs when short circuit fault exists at the receiving-end and is harmful to the safety of the system where wind farms are connected to the grid through high-voltage direct current (HVDC) transmission based on the modular multilevel converter (MMC). To address this issue, this paper first analyzed the mechanism of the DC overvoltage and innovatively proposed a strategy in which grid-forming-controlled wind farms are integrated into the AC grid through MMC-HVDC, whose sending-end applies grid-following control and constant DC voltage control. However, secondary DC overvoltage appears during the fault recovery stage and is mainly caused by the saturation of the PI controller of constant active power control. Simulations are carried out on a test with MATLAB/Simulink, and results verify the efficacy of the proposed methods in suppressing DC overvoltage that appeared during receiving-end faults and their recovery stage. © 2024 IEEE.

关键词： MATLAB

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Analysis of Three-Phase Short-Circuit Electromotive Force on Six Vacuum-Break Parallel-Type Generator Outlet Circuit Breakers 11th

Analysis of Three-Phase Short-Circuit Electromotive Force on...

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11th Frontier Academic Forum of Electrical engineering, FAFEE 2024

作者： Sun, Likang Chen, Lixue He, Yinghui Zou, Xinyang Li, Yingzhuo State Key Laboratory of Advanced Electromagnetic Technology Huazhong University of Science and Technology Wuhan430074 China Key Laboratory of Pulsed Power Technology Ministry of Education School of Electrical and Electronic Engineering Huazhong University of Science and Technology Wuhan430074 China

ISBN: (纸本)9789819787791

Currently, vacuum type generator outlet circuit breaker dominates the large-capacity generator circuit breaker. However, due to the large short-circuit current at the generator outlet end, the generator outlet circuit breaker needs to bear a great short-circuit electromotive force, thus affecting its dynamic stability. In this paper, COMSOL is used to construct a model of a six vacuum break parallel type outlet circuit breaker for the protection of a megawatt-level generator. Based on Maxwell's electromagnetic theory, the transient calculation of three-phase short-circuit electromotive force under different phases is carried out for the generator outlet vacuum circuit breaker, and the great values of short-circuit electromotive force under different phases are obtained for each phase. The results show that the main component of the short-circuit electromotive force is the electromotive force in the y-direction. And based on the maximum transient electromotive force, the influence of the material on the short-circuit electromotive force is studied, which provides theoretical support for the analysis of the short-circuit electromotive force of the generator outlet circuit breaker and the optimized design of the shell. © Beijing Paike Culture Commu. Co., Ltd. 2025.

关键词： Electric shielding

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Rejuvenating LiNi_(0.5)Co_(0.2)Mn_(0.3)O_(2) cathode directly from battery scraps

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eScience 2023年第2期3卷 112-122页

作者： Yaqing Guo Chi Guo Pengjie Huang Qigao Han Fuhe Wang Hao Zhang Honghao Liu Yuan-Cheng Cao Yonggang Yao Yunhui Huang State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan430074 China State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China Key Laboratory of Optoelectronic Chemical Materials and Devices Ministry of EducationSchool of Optoelectronic Materials&TechnologyJianghan UniversityWuhan 430056China

Battery recycling is indispensable for alleviating critical material shortages and enabling sustainable battery ***,current methods mostly focus on spent batteries,which not only require sophisticated disassembly and material extraction but also have unknown chemistries and states of health,resulting in high costs and extreme challenges to achieve ***,we propose the direct recycling and effective regeneration of air-degraded LiNi_(0.5)Co_(0.2)Mn_(0.3)O_(2)(NCM523)cathode directly from battery scraps generated during battery *** NCM523 shows surface degradation only a few nanometers deep and accordingly can be regenerated without adding Li,achieving restored properties(170 mAh g^(-1) at 0.1 C,92.7%retention after 1000 cycles)similar to those of fresh commercial *** analysis shows that scrap recycling has a profit of$1.984 kg^(-1),which is~10 times higher than conventional recycling,making it practical and economical to rejuvenate slightly degraded electrode materials for sustainable battery manufacturing.

关键词： Battery scrap Battery recycling Air degradation Cathode regeneration Techno-economic analysis

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Design of multifunctional tunable dual-layer metalens based on deep learning

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Optics Express 2025年第10期33卷 21979-21998页

作者： Wang, Yu Wang, Yue Yang, Guohui Zhang, Kuang Yang, Xing Wang, Chunhui Zhang, Yu National Key Laboratory of Laser Spatial Information Harbin Institute of Technology Heilongjiang Harbin150001 China School of Electronic and Information Engineering Harbin Institute of Technology Heilongjiang Harbin150001 China State Key Laboratory of Pulsed Power Laser Technology Advanced Laser Technology Laboratory of Anhui Province Electronic Engineering Institute National University of Defense Technology Hefei230037 China Jianghuai Advance Technology Center Hefei230037 China

To address the challenges of complex control in individually tunable meta-atoms and the limited modulation performance of single-layer holistic tunable metalenses, we propose a dual-layer tunable multifunctional metalens that utilizes holistic modulation based on the tunable BaTiO3 (BTO) material. This design enables rapid switching between different functionalities to be achieved by varying the voltage across the top and bottom layers. To accelerate the device design process, we employ a deep learning algorithm based on the transformer structure and incorporate a band embedding method that aids in predicting the high-frequency response. This approach enables accurate and rapid prediction of the transmittance and phase of meta-atoms in different voltage states, and can generate 100,000 arbitrary geometric meta-atoms in less than 1 s. Detailed simulation results demonstrate that the designed metalens can achieve near-perfect switching between dual-functionality and quadruple-functionality within the visible light range. The switchable functionalities include focal length, focal position, beam deflection angle, beam splitting, and the transitions between these different functionalities. Furthermore, to enhance the manufacturability of the designed metalens, we replace arbitrary geometric meta-atoms with simple geometric meta-atoms to design the structure of the overall metalens, which can also achieve the dual-function switchable effect with minimal performance degradation. © 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.

关键词： Geometry

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The state-of-the-art of atmospheric pressure plasma for transdermal drug delivery

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Plasma Science and technology 2024年第4期26卷 9-26页

作者：聂兰兰刘大伟程鹤赵峰卢新培 State key laboratory of advanced electromagnetic engineering and technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074People’s Republic of China School of Chemistry and Chemical Engineering Nanjing University of Science and TechnologyNanjing 210094People’s Republic of China Department of Thoracic Surgery Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022People’s Republic of China

Plasma-enhanced transdermal drug delivery(TDD) presents advantages over traditional methods,including painless application, minimal skin damage, and rapid recovery of permeability. To harness its clinical potential, factors related to plasma’s unique properties, such as reactive species and electric fields, must be carefully *** review provides a concise summary of conventional TDD methods and subsequently offers a comprehensive examination of the current state-of-the-art in plasma-enhanced TDD. This includes an analysis of the impact of plasma on HaCaT human keratinocyte cells, ex vivo/in vivo studies, and clinical research on plasma-assisted TDD. Moreover, the review explores the effects of plasma on skin physical characteristics such as microhole formation, transepidermal water loss(TEWL), molecular structure of the stratum corneum(SC), and skin resistance. Additionally, it discusses the involvement of various reactive agents in plasma-enhanced TDD, encompassing electric fields,charged particles, UV/VUV radiation, heat, and reactive species. Lastly, the review briefly addresses the temporal behavior of the skin after plasma treatment, safety considerations, and potential risks associated with plasma-enhanced TDD.

关键词： plasma transdermal drug delivery skin physical characteristics reactive agents

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Activation methods and underlying performance boosting mechanisms within fuel cell catalyst layer

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eScience 2024年第6期4卷 22-44页

作者： Miao Ma Lixiao Shen Zigang Zhao Pan Guo Jing Liu Bin Xu Ziyu Zhang Yunlong Zhang Lei Zhao Zhenbo Wang MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage State Key Laboratory of Space Power-SourcesSchool of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001China Shenzhen Key Laboratory of Special Functional Materials Shenzhen Engineering Laboratory for Advance Technology of CeramicsGuangdong Research Center for Interfacial Engineering of Functional MaterialsCollege of Materials Science and EngineeringShenzhen UniversityShenzhen 518060China Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education Department of Materials Science and EngineeringHarbin Engineering UniversityHarbin 150001China Unipower Hydrogen Technology(Jiangsu)Corporation No.625Wujin East AvenueWujin DistrictChangzhou 213176China

Proton exchange membrane fuel cells(PEMFCs)have been widely acknowledged as a significant advancement in achieving sustainable energy ***,the activation of newly established Pt-ionomer interfaces in the catalyst layer of PEMFCs can be a time-consuming and costly process to ensure proper coupling and *** order to gain valuable insights into this crucial activation process,we have conducted a comprehensive analysis and comparison of the commonly employed on-line(such as current or voltage control activation,short-circuiting activation,and air interruption activation)and off-line(including boiling or steaming,acidtreatment,and ultrasonic-treatment)activation *** findings shed light on the underlying mechanisms that contribute to enhanced performance within the catalyst layer,such as the reduction of Pt oxides and hydroxides,improved proton transport,and the reduction of“dead”***,this review emphasizes the significant challenges and future opportunities that lie in further enhancing the performance within the catalyst layer through the activation process.

关键词： Activation methods Pt,Pt-alloy,and Pt-free catalysts Pt-ionomer interface Proton exchange membrane fuel cells

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