Article
Chemistry, Multidisciplinary
Xiangru Si, Ruijie Zhu, Yang Yang, Huijun Yang, Nan Sheng, Chunyu Zhu
Summary: The addition of freeze-drying treatment to the cathode preparation process allows the obtainment of MnO2 cathodes with hierarchically porous structures, leading to enhanced charge/discharge performance in aqueous Zn-MnO2 batteries.
Article
Physics, Fluids & Plasmas
Serveh Kamrava, Hossein Mirzaee
Summary: This paper presents a method to build 3D models of complex materials using 2D images, enabling more accurate characterization and physical evaluations. The proposed framework can generate 3D images and reproduce important structural properties effectively, as shown in the results.
Article
Chemistry, Physical
Sida Zhou, Xinhua Liu, Yang Hua, Xinan Zhou, Shichun Yang
Summary: This article introduces a coupled hybrid adaptive particle swarm optimization-hybrid simulated annealing algorithm for precise parameter identification, which is validated on three different types of batteries and shows excellent consistency between simulation results and experimental data.
JOURNAL OF POWER SOURCES
(2021)
Article
Electrochemistry
Sajedeh Haghi, Josef Keilhofer, Nico Schwarz, Pengdan He, Rudiger Daub
Summary: Battery cell production plays a crucial role in achieving a net-zero future. Understanding the interdependencies of various process steps is vital for accelerating commercialization and optimizing production processes. This article presents a comprehensive methodology that combines design of experiments, data-driven models, and explainable machine learning methods to uncover the relationships between production parameters and the characteristics of lithium-ion electrode batteries.
BATTERIES & SUPERCAPS
(2023)
Article
Multidisciplinary Sciences
Zhengyu Ju, Steven T. King, Xiao Xu, Xiao Zhang, Kasun U. Raigama, Kenneth J. Takeuchi, Amy C. Marschilok, Lei Wang, Esther S. Takeuchi, Guihua Yu
Summary: In this article, a method for preparing low-tortuosity, high-density, and high-toughness thick electrodes through controlled nanosheet self-assembly is proposed. The electrode exhibits high volumetric and areal capacities, providing a potentially universal approach for designing high-performance battery electrodes with versatile anisotropic properties.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Materials Science, Multidisciplinary
Benedikt Prifling, Marten Ademmer, Fabian Single, Oleg Benevolenski, Andre Hilger, Markus Osenberg, Ingo Manke, Volker Schmidt
Summary: The paper introduces a novel parametric stochastic 3D microstructure model based on random fields for optimizing electrode morphology and studying electrochemical properties. The microstructure-property relationships are derived and validated by combining virtual materials testing and computer simulations, with a specific focus on local heterogeneity of battery electrodes.
COMPUTATIONAL MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Venkatesh Kabra, Brennan Birn, Ishita Kamboj, Veronica Augustyn, Partha P. Mukherjee
Summary: In this study, a machine learning approach is proposed to rapidly characterize the effective properties of electrode microstructures. Utilizing a comprehensive dataset and 3D mesoscale simulations, this approach accurately estimates the effective properties of electrodes, providing effective technical support for the development of next-generation high-energy density batteries.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Zhengyu Ju, Xiao Zhang, Jingyi Wu, Steven T. King, Chung-Chueh Chang, Shan Yan, Yuan Xue, Kenneth J. Takeuchi, Amy C. Marschilok, Lei Wang, Esther S. Takeuchi, Guihua Yu
Summary: This study focuses on electrode-level tortuosity engineering design to improve charge storage kinetics in high-energy electrodes. Quantitative investigation of electrochemical properties in electrodes with various architectures was conducted by correlating characteristic time with tortuosity. The study also delved into lithium-ion transport kinetics regulated by electrode architectures through visualization and simulation.
Article
Thermodynamics
Weizhuo Li, Qing Du, Guannan Guo, Chengru Wu, Kui Jiao
Summary: To eliminate endurance anxiety, lithium-ion batteries need to continuously improve energy densities by developing ultrathick electrodes that compress the proportion of inactive components. This study introduces two variants of oriented pore structures for fast ion transport and uses a quasi-3D electrochemical-thermal coupled model to investigate their behavior. The results show significant improvements in energy density and more uniform ion distribution, with reduced heat generation rate in high discharge rate conditions.
APPLIED THERMAL ENGINEERING
(2023)
Article
Chemistry, Physical
Andrew Cannon, Emily M. Ryan
Summary: This study investigates the impact of battery separator microstructure on mass transport and lithium dendrite growth using pore-scale computational modeling. The findings suggest that the local variation of properties in the separator can lead to nonuniform diffusion and problematic dendritic growth, which are not adequately captured by experimental relations. Neglecting these aspects may affect the performance and lifetime of lithium batteries.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Jimin Lee, Sanghyuk Park, Seongdeock Jeong, Jangho Park, Wooseok Kim, Gyeongbin Ko, Kwangho Park, Hong-In Kim, Kyungjung Kwon
Summary: Saline discharge is a crucial step to prevent explosion risks in spent Li-ion batteries. The impact of residual NaCl impurities from saline discharge on the structural and electrochemical properties of resynthesized cathode materials needs to be examined.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Jung-Min Oh, Su Bin Choi, Taeheon Kim, Jikwang Chae, Hyeonsu Lim, Jae-Won Lim, In-Seok Seo, Jong-Woong Kim
Summary: This study developed a novel annealing approach using Ca as a reducing agent to remove both F and O groups from the surface of multilayered MXene powder. The proposed treatment effectively removed F and O, increased interlayer spacing, and enhanced the hydrophilic and adsorption properties of the MXene. The specific surface area increased, and the oxidation resistance temperature in air improved. The benefits of this novel technology were demonstrated by the improved cyclic charge-discharge characteristics of a lithium-ion battery with a Ca-treated MXene electrode.
ADVANCES IN NANO RESEARCH
(2023)
Article
Computer Science, Interdisciplinary Applications
Zhenchuan Ma, Xiaohai He, Pengcheng Yan, Fan Zhang, Qizhi Teng
Summary: Microstructural analyses of porous media are important for studying macroscopic properties, and the accurate reconstruction of a digital microstructure model is crucial. A fast and flexible deep learning algorithm based on an improved simulated annealing framework is proposed, which utilizes structural information and feature distribution to guide the network design and optimization. The algorithm is capable of completing training and reconstruction in a short time.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Energy & Fuels
Jens Sandherr, Max-Jonathan Kleefoot, Sara Nester, Christian Weisenberger, Anjali K. M. DeSilva, Dominik Michel, Sarah Reeb, Mathias Fingerle, Harald Riegel, Volker Knoblauch
Summary: This paper proposes a novel approach of micro embossing for improving the performance of graphite-based anodes in lithium-ion batteries. The method enhances the hole structure, reduces the resistance, and increases the charging speed. Compared to laser processing, micro embossing results in better hole geometry and less loss of active material, leading to improved capacity retention.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Electrochemistry
Tuan-Tu Nguyen, Bruno Delobel, Arnaud Demortiere, Charles Delacourt
Summary: This paper discusses the use of two physics-based models to analyze the discharge performance of high-energy-density electrodes. The analysis reveals a significant discrepancy between the actual discharge performance and the results predicted by the regular Newman pseudo-2D model, which does not consider particle agglomeration effects. By introducing an extension of the Newman model that accounts for agglomeration effects, the discharge rate capabilities of industry-grade electrodes with different electrolytes can be validated. The simulation results indicate that mitigating agglomeration effects can greatly improve the rate performance of high-energy electrodes at high C-rates.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Thermodynamics
Weixiong Wu, Wei Wu, Shuangfeng Wang
ENERGY CONVERSION AND MANAGEMENT
(2017)
Article
Thermodynamics
Yanchu Liu, Wanchun Sun, Wei Wu, Shuangfeng Wang
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2017)
Article
Thermodynamics
Tingyu Wang, Shuangfeng Wang, Wei Wu
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2017)
Article
Thermodynamics
Wei Wu, Suling Zhang, Shuangfeng Wang
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2017)
Article
Thermodynamics
Weixiong Wu, Wei Wu, Shuangfeng Wang
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2018)
Article
Thermodynamics
Suling Zhang, Wei Wu, Shuangfeng Wang
Article
Energy & Fuels
Weixiong Wu, Wei Wu, Xianghui Qiu, Shuangfeng Wang
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2019)
Article
Energy & Fuels
Weixiong Wu, Wei Wu, Shuangfeng Wang
Review
Thermodynamics
Weixiong Wu, Shuangfeng Wang, Wei Wu, Kai Chen, Sihui Hong, Yongxin Lai
ENERGY CONVERSION AND MANAGEMENT
(2019)
Article
Electrochemistry
Ninghua Zhan, Wei Wu, Shuangfeng Wang
ELECTROCHIMICA ACTA
(2019)
Article
Thermodynamics
Bo Yang, Wei Wu, Maodong Li, Wei Zhai
JOURNAL OF THERMAL SCIENCE
(2020)
Article
Thermodynamics
Kai Chen, Junsheng Hou, Mengxuan Song, Shuangfeng Wang, Wei Wu, Yanlai Zhang
Summary: This paper investigates the performance of battery thermal management system with PCM and HP, finding that PCM can effectively reduce the temperature difference in the battery pack. Numerical methods show that increasing environmental convective heat transfer coefficient and PCM thickness can lower the maximum temperature in the battery pack while raising the temperature difference.
APPLIED THERMAL ENGINEERING
(2021)
Article
Chemistry, Physical
Fangju Li, Wei Wu, Shuangfeng Wang
Summary: The wettability modification of gas diffusion layer significantly affects water management and oxygen transport in proton exchange membrane fuel cells. Different hydrophilicity configurations influence liquid water and oxygen transport in gas diffusion layer, and an optimal hydrophilic pore fraction leads to minimum liquid water saturation and maximum limiting current density. Furthermore, oxygen transport is not only related to total liquid water saturation, but also depends on water distribution, with uniform water distribution in the through-plane direction being beneficial for oxygen transport.
JOURNAL OF POWER SOURCES
(2021)
Review
Energy & Fuels
Kangning Xiong, Wei Wu, Shuangfeng Wang, Lin Zhang
Summary: Bipolar plate plays a crucial role in proton exchange membrane fuel cells, and the pursuit of superior bipolar plates has become a technical challenge and future trend. Research shows that the three-dimensional, steady-state, multi-phase, computational fluid dynamics model is the most popular method for evaluating flow field design, with influencing factors such as channel-land dimensions and flow channel shape.
Article
Thermodynamics
Tengqing Liu, Wentao Yan, Wei Wu, Shuangfeng Wang
Summary: A novel design of thin vapor chamber was proposed with superhydrophilic microstructure to enhance thermal performance. Increasing the laser-etching area ratio resulted in a significant decrease in thermal resistance and an increase in maximum heat transfer capacity of the vapor chambers.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Shuai Zhang, Shuye Zhang, Hongzhi Zhou, Kyung-Wook Paik, Tianran Ding, Weimin Long, Sujuan Zhong, Peng He
Summary: Microwave Hybrid Heating (MHH) is a promising method for material joining, allowing for selective and uniform heating. This experimental study focused on investigating the characteristics and reliability of joints made using nano-Sn-3.0Ag-0.5Cu soldering paste and MHH technique. The research findings showed that the shear strength of the joints reached its peak value under specific microwave power and exposure time, but decreased after thermal shock tests.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Peibin Ma, Mingyang Wang, Aiying Chen, Lijian Gu, Zhiyi Ding, Xiaogui Wang, Bin Gan
Summary: Nano-twinned boundaries in high-temperature alloys play a crucial role in regulating the distribution of nano-precipitates and enhancing mechanical properties.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Jiachen Zhang, Fan Lu, Xinxin Liu, Taiwen Huang, Rui Li, Changsheng Tan, Guojun Zhang, Lin Liu
Summary: This study investigates the effects of Re and Ta interactions on the precipitation of the TCP phase in experimental alloys under long-term thermal exposure. The study finds that microstructure segregation is not fully eliminated even with standard heat treatment, and the interaction between Re and Ta enhances the formation of the TCP phase. Thermodynamic calculations and first-principles analysis reveal that Re significantly improves the driving force of TCP phase precipitation. The study also observes a phase transition from the sigma-phase to the P-phase, with Ni playing a crucial role in the diffusion process.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Ronit Roy, Adil Shaik, Matthew Topping, Fei Long, Mark R. Daymond
Summary: This study demonstrates the improvements in characterizing localized dislocation distribution using the HR-EBSD method compared to the conventional approach. Two extreme examples of deformation conditions were investigated to show the efficacy of HR-EBSD in identifying dislocations and subtle features. The direct correlation between slip bands and HR-EBSD estimated GNDs is also presented, enhancing the scope of this approach in identifying individual slip bands.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Wenshan Guo, Hui Zhang, Qingjun Zhou, Guangchun Xiao, Ning Guo, Wei Zhao, Gang Wang
Summary: The microstructures and corrosion resistance of TC11 components were significantly improved using a high-power, high-speed laser metal deposition (LMD) process and subsequent post-heat treatment, with greater improvements observed in the deposition direction. The significant improvement of corrosion resistance in the deposition direction is mainly due to the weakening of the charged galvanic corrosion effect between the non-interlayer zone and interlayer zone.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Shuai Xu, Rui Cao, Junheng Gao, Yu Zhang, Haitao Zhao, Shuize Wang, Yuhe Huang, Guilin Wu, Honghui Wu, Chaolei Zhang, Xinping Mao
Summary: In this study, the microstructures and mechanical properties of interphase precipitation strengthening micro-alloyed steels were investigated. The addition of Cr was found to increase the yield strength without significant decrease of ductility. Thermodynamics analysis revealed that the addition of Cr led to grain refinement and decrease of sheet spacing of nanoprecipitates. Calculations showed that the decrease of interphase-precipitated carbides sheet spacing and the refinement of grain size were responsible for the strength enhancement of Cr microalloyed steel.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Zhaoxin Zhong, Biao Zhang, Yuhan Ren, Jian Ye, Jiawei Zhang, Feng Ye
Summary: In this study, bioinspired web-liked multiphase composites were successfully constructed using boron-modified polysilazane polymer. The composites consisted of long TiB nanowires as 'web' and hybrid TiC and Ti3Si particles as 'nodes'. The enhanced strength of these composites was attributed to the synergistic load transfer of the hybrid reinforcements. This study provides a promising design approach for developing high-performance composites with high reinforcement content, utilizing polymer instead of traditional ceramic powder.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Geng Liu, Linran Yu, Jie Su, Ran Ding, Min Xiong, Qi Gao
Summary: In this study, a flash austenitization heat treatment approach was used to achieve a dual-phase microstructure consisting of retained austenite and fine-grained ferrite in low-carbon TRIP steel. Phase-field simulations revealed the acceleration of ferrite transition kinetics in the Mn-depleted region and the influence of chemical heterogeneity of C and Mn on the stabilization of austenite.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Zhichao Yang, Dehui Zheng, Zhen Wang, Tingbin Liang, Shuangbao Wang
Summary: In this study, the configurations, formation process, and properties of the Cu-rich layer formed during TJE of Al alloys were revealed using aberration-corrected scanning TEM (STEM), STEM image simulations, and first-principles calculations. The results showed a new orientation relationship between the Cu-rich layer and Al matrix, and provided insights into the formation mechanisms of the Cu-rich layer and Cu diffusion zone.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Shuai Chen, Ruyu Tian, Jiayue Wen, Yanhong Tian
Summary: In this study, the interfacial microstructure evolution and reliability of Cu/Sn-3.0Ag-0.5Cu (SAC305)/Ni and Cu/Sn-3.0Ag-0.5Cu-0.05TiO2 (SAC305-0.05TiO2)/Ni interconnections under thermal shock were investigated. The results showed that the addition of TiO2 nanoparticles can suppress the growth of interfacial IMCs and improve the reliability of the connections.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Yunbin Lu, Yangju Feng, Wei Wang, Wenke Wang, Jianlei Yang, Wenzhen Chen, Guorong Cui, Dongdong Zhuang, Hongyang Cao
Summary: In order to improve the wear resistance of titanium alloy, titanium matrix composites with network distributed TiBw were fabricated. The results showed that the wear rate of the composites decreased by 17.2% at room temperature and 38.4% at high temperature compared to the TA15 alloy. The TiBw in the composites enhanced work hardening, improved thermal conductivity, and effectively hindered dislocation movement and promoted dynamic recrystallization during high-temperature wear.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Jubert Pasco, Lu Jiang, Thomas Dorin, Ali Keshavarzkermani, Youliang He, Clodualdo Aranas Jr
Summary: The unique structure and solute distribution of CoCrMo alloys produced using Laser Powder Bed Fusion technique require custom heat-treating processes to achieve the targeted phase distribution and mechanical properties. This study investigates the phase transformation behavior and precipitate distribution of CoCrMo samples after aging heat treatment. The results show differences in phase fraction and nucleation sites between directly aged and solution heat-treated samples.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Zipeng Ma, Meng Zhou, Baohong Tian, Yi Zhang, Heng Li, Xu Li, Jin Zou, Haoyan Hu, Ke Jing, Yong Liu, Alex A. Volinsky
Summary: In this study, two electrical contact composites were prepared using the vacuum hot pressing sintering endo-oxidation method. The addition of Y2O3 had no negative effects on the electrical conductivity and hardness of the composites. Moreover, it reduced the welding force and arc energy, and improved the stability of the contacts.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Wei Sun, Ning Cui, Shuling Zhang, Tiewei Xu, Xiaopeng Wang, Fantao Kong
Summary: A laminated composite was successfully fabricated and its microstructure and mechanical properties were investigated. The composite exhibited high bonding strength, improved flexural strength and fracture toughness, and superior tensile properties compared to the monolithic alloy.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Zih-You Wu, Yin-Ku Lee, Su-Yueh Tsai, Po-Yu Chen, Jenq-Gong Duh
Summary: With the development of the artificial intelligence (AI) industries, electronic packaging is advancing towards high density, high efficiency, and multi-functionality. The application of microbumps is necessary to achieve high density and small-scale interconnection. In this study, three types of full intermetallic compounds (IMCs) bumps were fabricated, and the mechanical and thermal properties of IMCs were analyzed. The results showed that the full IMCs bumps with added Ni and Zn exhibited consistent structure and excellent thermal stability, providing a reliable microstructure for application.
MATERIALS CHARACTERIZATION
(2024)