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Advance Warning Prior to Capacity Plunge of Liquid Metal Battery Using Data-driven Methods

IEEE Transactions on Industry Applications 2025年第3期61卷 4147-4154页

作者： Shi, Qionglin Zhou, Min Li, Haomiao Wang, Kangli Jiang, Kai Ministry of Education Huazhong University of Science and Technology State Key Laboratory of Advanced Electromagnetic Technology School of Electrical and Electronic Engineering School of Electrical and Electronic Engineering Engineering Research Center of Power Safety and Efficiency Wuhan China

The liquid metal battery (LMB) has gained attention as a novel energy storage technology due to its exceptional safety and long lifespan. Analyzing the aging trajectory, particularly capacity plunge process, is crucial for understanding its aging mechanism and enabling effective health diagnosis. However, it often lacks clear warning signs prior to the capacity plunge, hindering accurate capacity prediction and proactive measures in real-world applications. To address this challenge, this study proposes a data-driven method that effectively quantifies the capacity various in LMBs, enabling advance warning before the occurrence of a capacity plunge. Firstly, the Empirical Mode Decomposition method decomposes the capacity data into several components, representing different characteristics of LMBs. Subsequently, a Gaussian mixture model is applied to construct the feature distribution for each component, which exhibits a hump-shaped pattern. Finally, The Jensen-Shannon divergence is used to quantify the divergence of these humps, offering a concrete measure of LMB health and aging progression. The proposed method integrating both aging analysis and data-driven insights provides an advance warning of the capacity plunge, offering a reliable foundation for future lifespan prediction and fault diagnosis of LMBs. © 2025 IEEE.

关键词： Network security

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AtomGAN:unsupervised deep learning for fast and accurate defect detection of 2D materials at the atomic scale

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Science China(Information Sciences) 2023年第6期66卷 102-114页

作者： Danpeng CHENG Wuxin SHA Zuo XU Shide LI Zhigao YIN Yuling LANG Shun TANG Yuan-Cheng CAO State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and Technology School of Computer Science and Technology Huazhong University of Science and Technology CITIC Dicastal Co. Ltd.

The extraction of atomic-level material features from electron microscope images is crucial for studying structure-property relationships and discovering new materials. However, traditional electron microscope analyses rely on time-consuming and complex human operations; thus, they are only applicable to images with a small number of atoms. In addition, the analysis results vary due to observers' individual deviations. Although efforts to introduce automated methods have been performed previously, many of these methods lack sufficient labeled data or require various conditions in the detection process that can only be applied to the target material. Thus, in this study, we developed AtomGAN, which is a robust, unsupervised learning method, that segments defects in classical 2D material systems and the heterostructures of MoS2/WS2automatically. To solve the data scarcity problem, the proposed model is trained on unpaired simulated data that contain point and line defects for MoS2/WS2. The proposed AtomGAN was evaluated on both simulated and real electron microscope images. The results demonstrate that the segmented point defects and line defects are presented perfectly in the resulting figures, with a measurement precision of 96.9%. In addition, the cycled structure of AtomGAN can quickly generate a large number of simulated electron microscope images.

关键词： deep learning generative adversarial network defect detection atomic resolution 2D materials

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A novel flexible plasma array for large-area uniform treatment of an irregular surface

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Plasma Science and technology 2022年第3期24卷 130-137页

作者： Baowang LIU Fei QI Dejiang ZHOU Lanlan NIE Yubin XIAN Xinpei LU State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and TechnologyWuhan 430074People's Republic

In this work,we demonstrate a flexible multi-pin plasma generator with movable electrodes,which can change the shape of the electrode array freely,and then provide a large-area uniform plasma for the treatment of surfaces of different *** characteristics including U-I waveforms and discharge images and sterilization performance under three different electrode configurations(flat-flat,flat-curve,curve-curve)are *** similar results are acquired between the flat-flat configuration and the curve-curve configuration,which is much better than that under flat-curve *** flexible multi-pin plasma generator offers a simple method to treat different irregularly shaped surfaces uniformly with a single ***,this device provides a foundation for developing a self-adaption large-scale uniform plasma generator by further introducing automatic adjustment of the position of every electrode driven by motors with discharge current feedback in the following *** it will promote the applications of atmospheric-pressure cold plasmas significantly.

关键词： flexible multi-pin electrode large-area uniform plasma sterilization

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Realisation of the reconfigurable pulsed high magnetic field facility and its scientific application at Wuhan National Pulsed High Magnetic Field Centre

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High Voltage 2023年第5期8卷 898-906页

作者： Jianfeng Xie Shaozhe Zhang Jiangtao Shi Junfeng Wang Liang Li Xiaotao Han Wuhan National High Magnetic Field Center Huazhong University of Science and TechnologyWuhanChina State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and TechnologyWuhanChina

To generate arbitrary shape magnetic field waveforms for advanced scientific research,a reconfigurable pulsed high magnetic field facility(PHMFF)was developed at Wuhan National Pulsed High Magnetic Field Centre(WHMFC).First,the basic elements of PHMFF are introduced,and a ternary physical model composed of energy storage unit,magnet,transmission circuits and other auxiliary units is summarised to describe various magnetic field ***,in order to realise the reconfiguration of magnetic field systems based on detailed elements,the control system with the ability of dynamic construction and control sequence reconfiguration is *** this basis,the PHMFF has been realised and various magnetic field systems are constructed to produce arbitrary shape magnetic field waveforms,such as half‐sine,ultra‐high,flat‐top and repetitive field pulses,which not only enhances the capability and efficiency of PHMFF,but also makes more scientific research possible in pulsed magnetic *** far,a peak magnetic field of 94.8 T,a flat‐top magnetic field of 64 T/10 ms and a repetitive magnetic field waveform of 20 T/60 Hz have been achieved,and some experiments and studies on the physical properties of materials have been carried out at WHMFC.

关键词： magnetic field pulsed

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Loosely coordinating diluted highly concentrated electrolyte toward -60℃ Li metal batteries

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Journal of Energy Chemistry 2024年第3期90卷 380-387,I0009页

作者： Han Zhang Ziqi Zeng Qiang Wu Xinlan Wang Mingsheng Qin Sheng Lei Shijie Cheng Jia Xie State Key Laboratory of Advanced Electromagnetic Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074HubeiChina State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074HubeiChina

Lithium metal batteries(LMBs) promise energy density over 400 Wh kg^(-1).However,they suffer severe electrochemical performance deterioration at sub-zero *** failure behavior highly correlates to inferior lithium metal anode(LMA) compatibility and sluggish Li^(+) ***,we demonstrate that cyclopentylmethyl ether(CPME) based diluted high-concentration electrolyte(DHCE)enables-60℃ LMBs *** leveraging the loose coordination between Li^(+) and CPME,such developed electrolyte boosts the formation of ion clusters to derive anion-dominant interfacial chemistry for enhancing LMA compatibility and greatly accelerates Li^(+) desolvation *** resulting electrolyte demonstrates high Coulombic efficiencies(CE),providing over 99.5%,99.1%,98.5% and 95% at 25,-20,-40,and-60℃*** assembled Li-S battery exhibits remarkable cyclic stability in-20,and-40℃ at 0.2 C charging and 0.5 C *** at-60℃,Li-S cell with this designed electrolyte retains> 70% of the initial capacity over 170 ***,lithium metal coin cell and pouch cell with10 mg cm^(-2) high S cathode loading exhibit cycling stability at-20℃.This work offers an opportunity for rational designing electrolytes toward low temperature LMBs.

关键词： Lithium metal batteries -60℃operation Lithium metal anode compatibility Li^(+) desolvation kinetics

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Deep learning-enhanced NIR-II fluorescence volumetric microscopy for dynamic 3D vascular imaging

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Journal of Innovative Optical Health Sciences 2025年第3期18卷 154-164页

作者： Shiyi Peng Yuhuang Zhang Xuanjie Mou Tianxiang Wu Mingxi Zhang Jun Qian State Key Laboratory of Extreme Photonics and Instrumentation International Research Center for Advanced PhotonicsCentre for Optical and Electromagnetic ResearchCollege of Optical Science and EngineeringZhejiang UniversityHangzhou 310058P.R.China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070P.R.China

Three-dimensional (3D) visualization of dynamic biological processes in deep tissue remains challenging due to the trade-off between temporal resolution and imaging depth. Here, we present a novel near-infrared-II (NIR-II, 900–1880nm) fluorescence volumetric microscopic imaging method that combines an electrically tunable lens (ETL) with deep learning approaches for rapid 3D imaging. The technology achieves volumetric imaging at 4.2 frames per second (fps) across a 200 μm depth range in live mouse brain vasculature. Two specialized neural networks are utilized: a scale-recurrent network (SRN) for image enhancement and a cerebral vessel interpolation (CVI) network that enables 16-fold axial upsampling. The SRN, trained on two-photon fluorescence microscopic data, improves both lateral and axial resolution of NIR-II fluorescence wide-field microscopic images. The CVI network, adapted from video interpolation techniques, generates intermediate frames between acquired axial planes, resulting in smooth and continuous 3D vessel reconstructions. Using this integrated system, we visualize and quantify blood flow dynamics in individual vessels and are capable of measuring blood velocity at different depths. This approach maintains high lateral resolution while achieving rapid volumetric imaging, and is particularly suitable for studying dynamic vascular processes in deep tissue. Our method demonstrates the potential of combining optical engineering with artificial intelligence to advance biological imaging capabilities.

关键词： NIR-II fluorescence bioimaging volumetric microscopy deep learning reconstruction dynamic vascular imaging

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1,3,5-Trifluorobenzene endorsed EC-free electrolyte for high-voltage and wide-temperature lithium-ion batteries

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Journal of Energy Chemistry 2023年第10期85卷 49-57,I0003页

作者： Mingsheng Qin Ziqi Zeng Qiang Wu Xiaowei Liu Qijun Liu Shijie Cheng Jia Xie State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074HubeiChina State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074HubeiChina State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina

Ethylene carbonate(EC)is susceptible to the aggressive chemistry of nickel-rich cathodes,making it undesirable for high-voltage lithium-ion batteries(LIBs).The arbitrary elimination of EC leads to better oxidative tolerance but always incurs interfacial degradation and electrolyte ***,an EC-free electrolyte is deliberately developed based on gradient solvation by pairing solvation-protection agent(1,3,5-trifluorobenzene,F_(3)B)with propylene carbonate(PC)/methyl ethyl carbonate(EMC)formulation.F_(3)B keeps out of inner coordination shell but decomposes preferentially to construct robust interphase,inhibiting solvent decomposition and electrode ***,the optimized electrolyte(1.1 M)with wide liquid range(-70–77℃)conveys decent interfacial compatibility and high-voltage stability(4.6 V for LiNi_(0.6)Mn_(0.2)Co_(0.2)O_(2),NCM622),qualifying reliable operation of practical NCM/graphite pouch cell(81.1%capacity retention over 600 cycles at 0.5 C).The solvation preservation and interface protection from F_(3)B blaze a new avenue for developing high-voltage electrolytes in next-generation LIBs.

关键词： Lithium-ion batteries Solvation structure High-voltage electrolyte Wide-temperature range Interfacial chemistry

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Facile synthesis of the Mn_(3)O_(4)polyhedron grown on N-doped honeycomb carbon as high-performance negative material for lithium-ion batteries

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International Journal of Minerals,Metallurgy and Materials 2023年第6期30卷 1152-1161页

作者： Dan Zhang Chunyan Zhang Xuan Zheng Yizhuo Zhao Xinyu Shi Baomin Luo Yuzhu Li Guangyin Liu Xiaodi Liu Chuang Yu College of Chemistry and Pharmaceutical Engineering Nanyang Normal UniversityNanyang 473061China State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China

Because of their large volume variation and inferior electrical conductivity,Mn_(3)O_(4)-based oxide anode materials have short cyclic lives and poor rate capability,which obstructs their *** this study,we successfully prepared a Mn_(3)O_(4)/N-doped honeycomb carbon composite using a smart and facile synthetic *** Mn_(3)O_(4)nanopolyhedra are grown on N-doped honeycomb carbon,which evidently mitigates the volume change in the charging and discharging processes but also improves the electrochemical reaction *** importantly,the Mn-O-C bond in the Mn_(3)O_(4)/N-doped honeycomb carbon composite benefits electrochemical *** features of the Mn_(3)O_(4)/N-doped honeycomb carbon(NHC)composite are responsible for its superior electrochemical *** used for Li-ion batteries,the Mn_(3)O_(4)/N-doped honeycomb carbon anode exhibits a high reversible capacity of 598 mAh·g^(−1)after 350 cycles at 1 A·g^(−1).Even at 2 A·g^(−1),the Mn_(3)O_(4)/NHC anode still delivers a high capacity of 472 mAh·g^(−1).This work provides a new prospect for synthesizing and developing manganese-based oxide materials for energy storage.

关键词： Mn_(3)O_(4) polyhedron nitrogen-doped honeycomb carbon anode lithium-ion battery

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Dynamic Modeling and Operations of a Heat-power Station System Based on Renewable Energy

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CSEE Journal of Power and Energy Systems 2022年第4期8卷 1110-1121页

作者： Zhenxing Li Jianyu Zhou Jinyu Wen Xia Chen State Key Laboratory of Advanced Electromagnetic Engineering and Technology and School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China

The coexistence of pollution from coal-fired heating and inefficient utilization of renewable resources in northern China has raised great *** studies on heat-power systems are primarily focused on traditional combined heat and power(CHP)systems and are limited to static energy flow analysis or the dynamic characteristics of a single system ***,it is difficult to make full use of the complementary potential of electrical energy and heat *** paper proposes a heat-power station(HPS)system based on renewable energy for the purpose of utilizing the surplus renewable energy to generate heat and meet heating *** overall architecture of the HPS system is established and its operational principle and dynamic characteristics of both the electrical and heating components in the system are analyzed and dynamic mathematical models are also *** addition,a coordinated electro-thermal control method based on system characteristics is designed to ensure the normal operation of a *** results verify the effectiveness of the model and control in the case of renewables fuctuation and heat load variations.

关键词： Coordinated control dynamic model and simulation heat-power station renewable energy

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An Environment‑Tolerant Ion‑Conducting Double‑Network Composite Hydrogel for High‑Performance Flexible Electronic Devices

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Nano-Micro Letters 2024年第5期16卷 352-369页

作者： Wenchao Zhao Haifeng Zhou Wenkang Li Manlin Chen Min Zhou Long Zhao State Key Laboratory of Advanced Electromagnetic Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074People’s Republic of China School of Chemistry and Chemical Engineering Huazhong University of Science and TechnologyWuhan 430074People’s Republic of China

High-performance ion-conducting hydrogels(ICHs)are vital for developing flexible electronic ***,the robustness and ion-conducting behavior of ICHs deteriorate at extreme tempera-tures,hampering their use in soft *** resolve these issues,a method involving freeze–thawing and ionizing radiation technology is reported herein for synthesizing a novel double-network(DN)ICH based on a poly(ionic liquid)/MXene/poly(vinyl alcohol)(PMP DN ICH)*** well-designed ICH exhibits outstanding ionic conductivity(63.89 mS cm^(-1) at 25℃),excellent temperature resistance(-60–80℃),prolonged stability(30 d at ambient temperature),high oxidation resist-ance,remarkable antibacterial activity,decent mechanical performance,and ***,the ICH performs effectively in a flexible wireless strain sensor,thermal sensor,all-solid-state supercapacitor,and single-electrode triboelectric nanogenerator,thereby highlighting its viability in constructing soft electronic *** highly integrated gel structure endows these flexible electronic devices with stable,reliable signal output *** particular,the all-solid-state supercapacitor containing the PMP DN ICH electrolyte exhibits a high areal specific capacitance of 253.38 mF cm^(-2)(current density,1 mA cm^(-2))and excellent environmental *** study paves the way for the design and fabrication of high-performance mul-tifunctional/flexible ICHs for wearable sensing,energy-storage,and energy-harvesting applications.

关键词： Ionic liquids Double-network hydrogels Temperature tolerance Multifunctionality Flexible electronic devices

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