Article
Chemistry, Physical
Xinlei Cao, Yongjun Lu, Zhipeng Chen, Kai Zhang, Fenghui Wang
Summary: In this study, the chemo-mechanical dynamic fracture phenomenon in large-deformed ductile electrode materials is investigated using the thermodynamically consistent phase-field method. The results show that the crack propagation velocity controlled by multiple factors will determine whether crack propagation or branching occurs. Furthermore, a safety limit for fracture and specific failure modes have been identified, providing insights for the design and evaluation of next-generation lithium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Dawei Li, Hongfei Wan, Huibing Liu, Yikai Wang, Junqian Zhang
Summary: This study optimized an in situ method for measuring the mechanical behavior and properties of silicon-based electrodes during electrochemical cycling. The research found that the swell strain and partial molar volume of Si electrodes increase with the Li concentration, while the elastic modulus generally decreases. The in-plain stress transforms from tensile stress to compressive stress during lithiation and shows an increasing tendency, but reverses during delithiation. These findings provide input parameters for battery modeling and help understand capacity fading of Si electrodes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Energy & Fuels
Kausthubharam, Poornesh K. Koorata, Satyam Panchal, Roydon Fraser, Michael Fowler
Summary: This article investigates the stress states of an electrode particle during lithiation, considering both intrinsic and extrinsic factors. The influence of concentration dependent properties, external constraints, and charging rate on stress magnitude and concentration gradient is explored. It is found that the behavior of the electrode particle differs under constrained and unconstrained expansion, and the charging rate affects both stress and concentration gradient.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Tao Zhang, Marc Kamlah
Summary: A chemo-mechanical phase-field model is developed to capture the complex phase segregation processes in NaxFePO4 (0 < x < 1), along with the structural changes during charging/discharging. The model constructs a multi-well potential for NaxFePO4 for the first time and investigates the microstructure evolution during sodiation and desodiation processes. Results suggest that the formation of an intermediate phase can reduce stress and improve mechanical stability, leading to better battery performance.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Hong Lv, Haijian Huang, Cheng Huang, Qiang Gao, Zeheng Yang, Weixin Zhang
Summary: This study presents a green and comprehensive recycling method based on DC electric field driven de-lithiation, which can effectively recover lithium ions with simultaneous H-2 production. The de-lithiated electrode materials exhibit remarkable electrocatalytic activity and can be applied in the oxygen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Ze Wen, Cuiying Dai, Jiaping Tang, Mei Yang, Hongbin Gao, Weiguo Mao, Zhuo Wang, Junan Pan, Yong Pan
Summary: In this study, a SnO2@graphite@CNT composite was synthesized using an acoustic chemistry method and annealing treatment. The composite exhibited high capacity and cycling stability as an anode material for lithium-ion batteries. The deformation behavior of the composite was monitored and analyzed, and the contributions of mechanical and electrochemical factors to the stress were discussed. These results provide valuable insights into the deformation behavior and failure mechanism of SnO2-based electrodes for lithium-ion batteries.
SOLID STATE IONICS
(2023)
Article
Chemistry, Physical
Congcheng Wang, Timothy Chen, Yuhgene Liu, Dae Hoon Kang, Diptarka Majumdar, Rajesh Gopalaswamy, Matthew T. McDowell
Summary: Metal foils, especially aluminum alloys, show potential as anode materials in lithium-ion batteries due to their high lithium storage capacity and the avoidance of slurry coating. However, the cyclability of aluminum foil anodes is usually poor. This study investigates the composition and microstructure effects on the cycling performance of aluminum alloy foils, and finds that the addition of alloy components can improve their cycle life by up to two times. The understanding gained from this research provides possible strategies for enhancing the performance of metal foil anodes in lithium batteries.
ACS ENERGY LETTERS
(2023)
Article
Computer Science, Interdisciplinary Applications
Jiacheng Xu, Dan Hu, Han Zhou
Summary: Boundary tracking is a challenging numerical problem in elastic mechanics, and this work proposes a method using phase-field variables and second-order compact finite difference schemes to accurately solve this problem.
JOURNAL OF COMPUTATIONAL PHYSICS
(2022)
Article
Mechanics
Kai Zhang, Yong Li, Bailin Zheng, Fuqian Yang
Summary: Based on physically based constitutive models, this study investigates the plastic flow in thin-walled silicon anodes and obtains analytical solutions of stress fields. The results show that stresses and free volume decrease with the increase in charging and discharging, and the stress variations in thin-walled nanoparticles and nanotubes are similar. The study also suggests that circumferential surface cracks are likely to occur first due to the larger stress in the hoop direction. Furthermore, the resistance to plastic flow weakens with the increase in the charging rate.
Review
Biochemistry & Molecular Biology
Xiangzhong Kong, Ziyang Xi, Linqing Wang, Yuheng Zhou, Yong Liu, Lihua Wang, Shi Li, Xi Chen, Zhongmin Wan
Summary: Silicon is considered as a promising anode material for lithium-ion batteries due to its high capacity and abundance. However, issues such as volume changes, unstable solid electrolyte interphase formation, and low conductivity hinder its practical applications. Various modification strategies have been developed to enhance its lithium storage properties, including structural design, oxide complexing, and Si alloys. Other factors such as pre-lithiation and surface engineering are also discussed. Challenges and future prospects of Si-based anode materials are highlighted.
Article
Chemistry, Physical
Ikcheon Na, Hwiho Kim, Sebastian Kunze, Chihyun Nam, Sugeun Jo, Hanbi Choi, Sumin Oh, Eugene Choi, Yong Bae Song, Yoon Seok Jung, Yun Seog Lee, Jongwoo Lim
Summary: Surface-treated thin silicon wafers can function as monolithic, additive-free, electrolyte-free, and void-free electrodes to achieve high areal capacity at room temperature. Grooved silicon wafer electrodes showed reversible (de)lithiation and stable interfacial resistance, enabling homogeneous alloying/dealloying processes during cycling.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Analytical
Zhiying Chen, Kongqiang Ye, Minglin Li, Shuai Zhao, Jing Luo, Bo Wu
Summary: Tungsten-based materials show promise as anode materials for lithium-ion batteries, with the transformation between intercalation and conversion reactions depending on the number of inserted lithium atoms. Excellent stability of battery capacity was found in shallow charge-discharge, but not in deep charge-discharge.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Environmental
Ki-Hun Nam, Keun Hwa Chae, Jeong-Hee Choi, Ki-Joon Jeon, Cheol-Min Park
Summary: By utilizing a two-step strategy of amorphization and pre-lithiation/sodiation, superior carbon black has been successfully designed as a high-performance conducting additive for Li-ion batteries and Na-ion batteries, showing high reversible capacities and stable cycling behavior.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Huibo Wang, De Ning, Litong Wang, Heng Li, Qingyuan Li, Mingzheng Ge, Junyan Zou, Shi Chen, Huaiyu Shao, Yuekun Lai, Yanyan Zhang, Guichuan Xing, Wei Kong Pang, Yuxin Tang
Summary: This review highlights the recent advances in the real-time investigation of lithium-ion batteries using neutron techniques. Neutron scattering, with its unique advantages, provides valuable insights into the battery mechanisms. Various neutron-based techniques have been applied in different scales and battery components.
Article
Mechanics
Bao Qin, Zheng Zhong
Summary: This paper presents a coupled diffusion-reaction-deformation model for simulating the lithiation process of silicon electrodes in lithium ion batteries, which can describe the formation of the two-phase interface and the mechanical behaviors of Si electrodes during lithiation process.
ARCHIVE OF APPLIED MECHANICS
(2021)
Article
Engineering, Mechanical
Yong Li, Jian Zhang, Kai Zhang, Bailin Zheng, Fuqian Yang
INTERNATIONAL JOURNAL OF PLASTICITY
(2019)
Article
Physics, Applied
Kai Zhang, Yong Li, Feng Wang, Bailin Zheng, Fuqian Yang
APPLIED PHYSICS EXPRESS
(2019)
Article
Physics, Applied
Yong Li, Wenya Mao, Kai Zhang, Yun-Fei Jia, Fuqian Yang
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2019)
Article
Mechanics
Yong Li, Wenya Mao, Kai Zhang, Fuqian Yang
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2019)
Article
Materials Science, Multidisciplinary
Kai Zhang, Jie Chen, Yong Li, Dashun Liu, Bailin Zheng, Yue Kai
RESULTS IN PHYSICS
(2020)
Article
Chemistry, Physical
Yong Li, Qi Zhang, Kai Zhang, Fuqian Yang
JOURNAL OF POWER SOURCES
(2020)
Article
Mechanics
Kai Zhang, Yong Li, Feng Wang, Bailin Zheng, Fuqian Yang, Dong Lu
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2020)
Article
Energy & Fuels
Kai Zhang, Yuwei Zhang, Junwu Zhou, Yong Li, Bailin Zheng, Fuqian Yang, Yue Kai
JOURNAL OF ENERGY STORAGE
(2020)
Article
Mechanics
Kai Zhang, Yong Li, Bailin Zheng, Fuqian Yang
Summary: Based on physically based constitutive models, this study investigates the plastic flow in thin-walled silicon anodes and obtains analytical solutions of stress fields. The results show that stresses and free volume decrease with the increase in charging and discharging, and the stress variations in thin-walled nanoparticles and nanotubes are similar. The study also suggests that circumferential surface cracks are likely to occur first due to the larger stress in the hoop direction. Furthermore, the resistance to plastic flow weakens with the increase in the charging rate.
Article
Engineering, Multidisciplinary
Fuqian Yang, Yong Li, Kai Zhang
Summary: Understanding the evolution of lithium concentration and stresses in electrode materials during electrochemical cycling is crucial for studying the degradation mechanisms of lithiated electrode materials. This study analyzes the diffusion-induced volume expansion by the change rate of the host material's volume and establishes an exponential relationship between volume expansion, concentration of solute atoms, and coefficient of linear expansion. The constitutive relation for diffusion-induced finite deformation of elastic materials is derived using the principle of multiplicative decomposition. The spatial distributions of lithium concentration and stresses in a spherical silicon electrode are found to exhibit similar trends to those calculated from linear elasticity theory and nonlinear characteristics.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2023)
Article
Engineering, Mechanical
Kai Zhang, Junwu Zhou, Tian Tian, Yue Kai, Yong Li, Bailin Zheng, Fuqian Yang
Summary: Currently, there is a lack of analysis methods to quantitatively study the effects of cycling-induced damage on the stress evolution and capacity loss in silicon-based batteries. We propose a comprehensive model to address this issue, which is validated through comparisons with experimental results. Contrary to common belief, we suggest a concept of training batteries by introducing sufficient damage to improve retention performance, and its effectiveness is experimentally confirmed. Optimization of the training method is also discussed.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Chemistry, Physical
Yuan Xue, Yong Li, Kai Zhang, Fuqian Yang
Summary: This paper introduces a method for solving diffusion-induced stress problems using a physics-inspired neural network to solve stress problems caused by diffusion in an elastic sphere. By inputting time-space coordinates and outputting displacement and solute concentration, the spatiotemporal evolution of displacement and solute concentration can be obtained. The numerical results of this method have been validated.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Electrochemistry
Yong Li, Wenya Mao, Qi Zhang, Kai Zhang, Fuqian Yang
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Physics, Multidisciplinary
Peng Ying-Zha, Li Yong, Zheng Bai-Lin, Zhang Kai, Xu Yong-Chuan
ACTA PHYSICA SINICA
(2018)
