Article
Chemistry, Physical
Stanislav Bogdanov, Sergei Parsegov, Christina Schubert, Federico Martin Ibanez, Karl-Heinz Pettinger, Mikhail Pugach
Summary: In this work, a two-stage parameter identification algorithm is proposed for the zero-dimensional model of VRFB based on experimental data fitting. The algorithm can assess the degree of degradation of battery components and capture the effects of crossover and mass transfer limitations. The algorithm is validated with three experimental VRFB systems and shows good agreement with experimental data.
JOURNAL OF POWER SOURCES
(2023)
Article
Energy & Fuels
Yifeng Li, Longgang Sun, Liuyue Cao, Jie Bao, Maria Skyllas-Kazacos
Summary: A model-based approach was developed to determine the membrane permeability properties for the vanadium redox flow battery (VRB) system, estimating vanadium ion and water transfer coefficients through nonlinear optimization with measured half-cell potentials. Experimental studies were conducted to validate the effectiveness of the proposed method using two different membranes as examples. This simplified approach is useful for predicting battery capacity decay and scheduling regular maintenance activities such as electrolyte rebalancing.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Energy & Fuels
Fan Yang, Luyan Fan, Yuwei Chai, Yating Zheng, Dawei Qu
Summary: A suitable flow field structure can enhance the mass transfer in VRFBs. By establishing a 3D model, it is found that the double spiral flow field improves the discharge performance and pressure drop of VRFBs compared to other flow fields, as well as increases energy efficiency.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Hyebin Kim, Jung S. Yi, Doohwan Lee
Summary: The study investigates the marked electrocatalytic effects of two-step B and O atomic doping of graphite-felt electrodes for vanadium redox reactions in a vanadium redox flow battery. By controlling the doping sequence and temperature via thermochemical reactions, the kinetic significance of the B and O surface centers for the reactions is identified, leading to improved catalytic activity and specific charge-discharge capacity of the electrodes. With a two-step O and B doping configuration, the B/O-GF electrode shows significantly higher voltage efficiency compared to pristine-GF, demonstrating the potential for enhanced performance in VRFB applications.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Electrochemistry
Alexandros Pasadakis-Kavounis, Funda Arslan, Mads Radmer Almind, David Aili, Johan Hjelm
Summary: In this study, a series of polybenzimidazole-polyvinylchloride polymer blends decorated with different quaternary ammonium groups were investigated. The blend with 90% polybenzimidazole content and decorated with DABCO showed superior performance, including low polarization resistance, low swelling, and high stability in acidic media. This suggests that quaternary ammonium functionalized polybenzimidazole-polyvinylchloride systems are excellent candidates for modification or fabrication of thinner membranes to reduce membrane resistance without compromising vanadium blocking properties.
BATTERIES & SUPERCAPS
(2023)
Article
Energy & Fuels
Nawin Ra, Ankur Bhattacharjee
Summary: This paper demonstrates the prediction of overall power loss of a Vanadium Redox Flow Battery (VRFB) system using different machine learning algorithms. The AdaBoost algorithm outperforms linear regression and support vector regression algorithms in predicting VRFB system loss with high accuracy.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Hyebin Kim, Jihun Paick, Jung S. Yi, Doohwan Lee
Summary: Heteroatom doping can enhance the electrokinetics of vanadium redox reactions in flow batteries, but this study found that the enhancements observed by p-type and n-type doping are primarily due to surface lattice defects. However, p-n type boron-nitrogen co-doping shows exceptional catalytic activity and significantly improves the efficiency and energy storage capacity of vanadium redox flow batteries.
JOURNAL OF POWER SOURCES
(2023)
Review
Energy & Fuels
Zebo Huang, Anle Mu
Summary: Vanadium redox flow batteries (VRFBs) are increasingly utilized in renewable energy storage and microgrid systems, offering a solution to the intermittent nature of renewable energy sources. This research emphasizes on enhancing the overall performance of VRFBs without the need for new component materials.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Energy & Fuels
Wen-Jiang Zou, Young-Bae Kim, Seunghun Jung
Summary: This paper proposes a dynamic prediction model for capacity fade in vanadium redox flow batteries (VRFBs). The model accurately predicts changes in electrolyte volume and capacity fade, enhancing the competitiveness of VRFBs in energy storage applications.
Article
Energy & Fuels
Marco Cecchetti, Francesco Toja, Andrea Casalegno, Matteo Zago
Summary: In this study, a new and comprehensive approach is proposed to investigate vanadium cross-over. By using charge-discharge cycles with fixed exchanged capacity and measuring the self-discharge of the single electrolyte solutions through-plate reference electrodes, the involved physics in different operating conditions can be accurately described. A 1D physically-based model of the battery operation is developed and calibrated on electrolyte imbalance data to investigate the main vanadium transport mechanisms and evaluate the influence of current density on vanadium crossover fluxes and self-discharge rate of the electrolyte.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Y. Lei, B. W. Zhang, B. F. Bai, X. Chen, T. S. Zhao
Summary: The study introduces a transient model of VRFB with a bipolar membrane, which improves the Poisson equation to describe the Donnan effect between the two layers for a full description of charge and ion transport. Numerical results demonstrate that bipolar membranes with thin anion exchange layers exhibit higher energy efficiency at large current densities.
JOURNAL OF POWER SOURCES
(2021)
Article
Energy & Fuels
Ram Kishore Sankaralingam, Satyanarayanan Seshadri, Jaka Sunarso
Summary: Renewable energy utilisation is crucial for achieving carbon-zero goals, and efficient storage is necessary for stable energy supply. Vanadium redox flow batteries (VRFB) are promising for grid storage, but face challenges in round-trip efficiency compared to lithium-ion batteries. Optimising physical and chemical parameters can maximise VRFB efficiency.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Deokhyun Hwang, Jong-Wook Ha, Young Soo
Summary: This study demonstrates a simple one-pot process for the preparation of V3.5+ electrolytes from V2O5 using hydrazine monohydrate as a residue-free reducing agent and molybdenum as a homogeneous catalyst. The developed process exhibits scalability and high reproducibility, contributing to the wide application of VRFBs as large-scale and long-term energy storage systems.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Energy & Fuels
Z. H. Zhang, L. Wei, M. C. Wu, B. F. Bai, T. S. Zhao
Summary: Utilizing chloride ions as additives in electrolytes can enhance the performance of vanadium redox flow batteries, especially with the optimum concentration. Adding chloride ions can improve the energy efficiency, rate capability, and cycle life of the batteries.
Article
Thermodynamics
Prathak Jienkulsawad, Tossaporn Jirabovornwisut, Yong-Song Chen, Amornchai Arpornwichanop
Summary: An electrolyte imbalance in a vanadium redox flow battery (VRFB) can lead to degradation in performance and capacity during long-term operation. Through systematic analysis of VRFB, involving different electrode materials and membranes, factors such as carbon felt structures, cation- and anion-exchange membranes are considered. A dynamic model of VRFB is used to study the impact of electrolyte imbalance on battery performance and gas evolution/self-discharge side reactions. It is found that the rate of capacity loss depends on the material and operating conditions, with vanadium ion variation influenced by gassing and self-discharge side reactions. High energy efficiency is observed in VRFB using Type 3 electrodes and an AMV membrane. Battery operating time, current density, temperature, and total vanadium concentration are found to impact capacity degradation rate. Changes in electrolyte flow rate do not improve battery capacity due to electrolyte imbalance-induced state of charge reduction.
Article
Energy & Fuels
Zhongbao Wei, Jian Hu, Yang Li, Hongwen He, Weihan Li, Dirk Uwe Sauer
Summary: This paper proposes a hierarchical soft measurement framework for accurate estimation of SOC and load current in electric vehicles, even without using current measurements. Simulation and experimental results show that the framework can achieve high-fidelity co-estimation even in scenarios of noise corruption and current sensor malfunction.
Article
Automation & Control Systems
Jianwei Li, Fang Yao, Qingqing Yang, Zhongbao Wei, Hongwen He
Summary: This paper proposes a new variable voltage control within a semiactive battery SC hybrid scheme for FFR service, aiming to improve the SC use ratio while reducing the converter's cost.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Automation & Control Systems
Zhongbao Wei, Jian Hu, Hongwen He, Yifei Yu, James Marco
Summary: This article proposes a thermal-model-based method for multistate joint observation in lithium-ion battery management. By embedding distributed temperature sensors, a novel smart battery design enables real-time monitoring of internal and surface temperatures, as well as state parameters with high space resolution.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Automation & Control Systems
Jian Hu, Hongwen He, Zhongbao Wei, Yang Li
Summary: This article proposes a novel ISC diagnostic method that utilizes polarization dynamics instead of conventional charge depletion. The method demonstrates high robustness to measurement disturbances and battery aging. The recursive total least squares method is used to mitigate the adverse effect of measurement disturbances and achieve unbiased estimation of the ISC resistance. The proposed method is validated theoretically and experimentally for high diagnostic accuracy and strong robustness to battery degradation and disturbance.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Thermodynamics
Jiaqiang Tian, Xinghua Liu, Siqi Li, Zhongbao Wei, Xu Zhang, Gaoxi Xiao, Peng Wang
Summary: This study proposes a state-of-health (SOH) attenuation model considering driving mileage and seasonal temperature for battery health estimation, which is significant for battery pack management and maintenance. The variable forgetting factor recursive least square (VFFRLS) algorithm is used for battery model parameter identification and the extended Kalman-particle filter (EPF) algorithm is proposed for online capacity estimation. The proposed model and algorithm are verified using actual vehicle data over nine months. The experimental results demonstrate the accurate estimation of model parameters and capacity through the proposed algorithm, and the decrease in average capacity of the battery module with total mileage. The compensation of monthly driving mileage and ambient temperature factors effectively improves the accuracy of the SOH model.
Article
Automation & Control Systems
Haoyong Cui, Zhongbao Wei, Hongwen He, Jianwei Li
Summary: This article proposes a dual-scale hierarchical equalization scheme enabled by a novel four-switch reconfigurable topology, aiming to address the issue of cell imbalance in lithium-ion batteries. The proposed scheme offers flexible reconfigurability, moderate complexity, and high fault tolerance, ensuring all-cell flexibility and maximum capacity utilization.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Jianwei Li, Weitao Zou, Qingqing Yang, Zhongbao Wei, Hongwen He
Summary: Fuel cell based combined heat and power (FC-CHP) system is a promising distributed energy solution in south of China to meet the high power demand without central heating. A dynamic heat/power switching strategy and a new energy management strategy are proposed to improve system efficiency and maximize stakeholder benefits. This research reduces fuel cell degradation and achieves energy consumption economy in a practical example in Jiangsu province.
IEEE TRANSACTIONS ON SMART GRID
(2023)
Article
Chemistry, Physical
Zhongbao Wei, Xiaofeng Yang, Yang Li, Hongwen He, Weihan Li, Dirk Uwe Sauer
Summary: This paper proposes a machine learning-based fast charging strategy for lithium-ion batteries. By using a reduced-order electrochemical-thermal model in the cloud, the soft actor-critic deep reinforcement learning algorithm is exploited to train the strategy. Hardware-in-Loop tests and experiments show that the proposed strategy effectively mitigates risks and improves the safety and longevity of batteries during fast charging. Compared to the commonly-used empirical protocol, the proposed approach extends the battery cycle life by about 75%.
ENERGY STORAGE MATERIALS
(2023)
Article
Energy & Fuels
Wei Feng, Chen Xuebing, Cao Shuyu, Soh Chew Beng, Cai Zhiqiang, Tseng King Jet, D. Mahinda Vilathgamuwa
Summary: Battery energy storage power stations (BESPS) are proposed to replace static Var compensators (SVC) for power flow regulation in large-scaled micro-grids, saving costs. An additional controller, energy storage coordination controller (ESCC), is needed to support DVR control and coordinate individual battery energy storage system units. However, communication delay and difficulty in measuring micro-grid (MG) bus voltage by ESCC need to be considered to ensure micro-grid operation. This paper investigates model predictive control (MPC), Smith Predictor, and PI-based control schemes to address the communication delay issue, and uses a Kalman Filter based observer as a feedback signal for ESCC.
IEEE TRANSACTIONS ON ENERGY CONVERSION
(2023)
Article
Automation & Control Systems
Jianwei Li, Shucheng He, Qingqing Yang, Tianyi Ma, Zhongbao Wei
Summary: This article proposes a multi-objective sizing method that integrates retired batteries and photovoltaic solar energy in electric vehicle charging stations to address uncertainty in charging demand. The method utilizes the non-dominated sorting genetic algorithm II (NSGA-II) to minimize renewable energy waste, energy purchased from the grid, and the cost over a 20-year period. The article also predicts the remaining life of retired batteries using a calendar-life degradation model and incorporates different charging patterns to model charging demand uncertainty in different EVCS scenarios. Case studies using real-world data demonstrate a 29.4% cost reduction in long-term operation with the proposed sizing method and retired batteries.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2023)
Article
Engineering, Electrical & Electronic
Qingqing Yang, Jun Shen, Jianwei Li, Hongwen He, Zhongbao Wei, Petar Igic
Summary: This article proposes an improved adaptive predictive control method for multiterminal HVdc systems, which addresses the challenges of system stability caused by the decreasing system inertia due to the increasing penetration of renewables and integration of power electronic devices. The proposed method coordinates the key parameters, including dc voltage, ac frequency, and power-sharing among terminals, by optimizing a multiobjective fitness function. The method achieves adaptive control by combining trust-region and particle swarm optimization. The proposed method is validated on a four-terminal HVdc system within the IEEE 30-bus ac system, demonstrating its robustness and efficiency.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Wanke Cao, Mengchao Yang, Zhongbao Wei, Jun Wang, Xiaoguang Yang
Summary: A new method for analyzing multi-hop loop delay and a hierarchical cyber-physical control scheme for the autonomous emergency braking (AEB) system are proposed to mitigate the adverse effects of road adhesion saturation and communication delays. The upper layer adopts a mu-adaptive TTC planning strategy to consider road adhesion saturation and generate desired acceleration for collision risk avoidance. The lower layer designs an H-infinity-based LQR for acceleration tracking with strong robustness to cyber system uncertainties.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Rui Wang, Junda Li, Qiuye Sun, Huaguang Zhang, Zhongbao Wei, Peng Wang
Summary: This paper proposes a DC-DC converter using virtual power based model predictive control (VP-MPC), which can provide energy mutual aid function between two electric vehicles. The bidirectional full bridge series resonant DC-DC converter (BDB-SRC) is applied to meet the demand for high voltage gain and high power density. VP-MPC is proposed to solve the problem of variable parameters in different types of electric vehicles. Experimental results verify the high performance of the proposed energy transfer converter between two electric vehicles.
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS
(2023)
Article
Automation & Control Systems
Xuyang Zhao, Hongwen He, Jianwei Li, Zhongbao Wei, Ruchen Huang, Man Shi
Summary: This article proposes a computer vision-based method to accurately estimate battery capacity degradation. The method constructs battery multidimensional aging features as key images and establishes a mapping relationship between the images and capacity degradation using specific charging data segments. The proposed method greatly simplifies the network structure in computer vision models and improves estimation accuracy and efficiency.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2023)
Article
Engineering, Electrical & Electronic
Haokai Ruan, Hongwen He, Zhongbao Wei, Zhongyi Quan, Yunwei Li
Summary: This article proposes a novel state of health (SOH) estimator using partial constant-voltage (CV) charging data. Thorough analysis is performed to determine the most informative and robust health indicators (HIs), with CV capacity found to be the most suitable for SOH estimation. To address the challenge of partial CV charging, a novel CV phase reconstruction method combining Q - V modeling and open-circuit voltage (OCV) estimation is proposed to accurately predict the CV capacity based on available partial CV data. The proposed method is validated with long-term degradation experiments, demonstrating high accuracy, low charging completeness requirement, and robustness to cell inconsistency.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2023)
Article
Chemistry, Physical
Tianyu Chen, Zhibin Lu, Guangjin Zeng, Yongmin Xie, Jie Xiao, Zhifeng Xu
Summary: The study introduces a high-performance LSGM electrolyte-supported tubular DC-SOFC stack for portable applications, which shows great potential in developing into high-performing, efficient, and environmentally friendly portable power sources for distributed applications.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Wenbin Tong, Yili Chen, Shijie Gong, Shaokun Zhu, Jie Tian, Jiaqian Qin, Wenyong Chen, Shuanghong Chen
Summary: In this study, a three-dimensional porous NiO interface layer with enhanced anode dynamics is fabricated, forming a Schottky contact with the zinc substrate, allowing rapid and uniform zinc plating both inside and below the interface layer. The resulting NiO@Zn exhibits exceptional stability and high capacity retention.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yafeng Bai, Kaidi Li, Liying Wang, Yang Gao, Xuesong Li, Xijia Yang, Wei Lu
Summary: In this study, a flexible zinc ion supercapacitor with gel electrolytes, porous alpha-MnO2@reduced graphene oxide cathode, and activated carbon/carbon cloth anode was developed. The device exhibits excellent electrochemical performance and stability, even at low temperatures, with a high cycle retention rate after 5000 cycles.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Anmol Jnawali, Matt D. R. Kok, Francesco Iacoviello, Daniel J. L. Brett, Paul R. Shearing
Summary: This article presents the results of a systematic study on the electrochemical performance and mechanical changes in two types of commercial batteries with different anode chemistry. The study reveals that the swelling of anode layers in batteries with silicon-based components causes deformations in the jelly roll structure, but the presence of a small percentage of silicon does not significantly impact the cycling performance of the cells within the relevant state-of-health range for electric vehicles (EVs). The research suggests that there is room for improving the cell capacities by increasing the silicon loading in composite anodes to meet the increasing demands on EVs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yohandys A. Zulueta, My Phuong Pham-Ho, Minh Tho Nguyen
Summary: Advanced atomistic simulations were used to study ion transport in the Na- and K-doped lithium disilicate Li2Si2O5. The results showed that Na and K doping significantly enhanced Li ion diffusion and conduction in the material.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Zongying Han, Hui Dong, Yanru Yang, Hao Yu, Zhibin Yang
Summary: An efficient phase inversion-impregnation approach is developed to fabricate BaO-decorated Ni8 mol% YSZ anode-supported tubular solid oxide fuel cells (SOFCs) with anti-coking properties. BaO nanoislands are successfully introduced inside the Ni-YSZ anode, leading to higher peak power densities and improved stability in methane fuel. Density functional theory calculations suggest that the loading of BaO nanoislands facilitates carbon elimination by capturing and dissociating H2O molecules to generate OH.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Suresh Mamidi, Dan Na, Baeksang Yoon, Henu Sharma, Anil D. Pathak, Kisor Kumar Sahu, Dae Young Lee, Cheul-Ro Lee, Inseok Seo
Summary: Li-CO2 batteries, which utilize CO2 and have a high energy density, are hindered in practical applications due to slow kinetics and safety hazards. This study introduces a stable and highly conductive ceramic-based solid electrolyte and a metal-organic framework catalyst to improve the safety and performance of Li-CO2 batteries. The optimized Li-CO2 cell shows outstanding specific capacity and cycle life, and the post-cycling analysis reveals the degradation mechanism of the electrodes. First-principles calculations based on density functional theory are also performed to understand the interactions between the catalyst and the host electrode. This research demonstrates the potential of MOF cathode catalyst for stable operation in Li-CO2 batteries.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Ganghua Xiang, Zhihuan Qiu, Huilong Fei, Zhigang Liu, Shuangfeng Yin, Yuen Wu
Summary: In this study, a CeFeOx-supported Pt single atoms and subnanometric clusters catalyst was developed, which exhibits enhanced catalytic activity and stability for the preferential oxidation of CO in H2-rich stream through synergistic effect.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Dimitrios Chatzogiannakis, Marcus Fehse, Maria Angeles Cabanero, Natalia Romano, Ashley Black, Damien Saurel, M. Rosa Palacin, Montse Casas-Cabanas
Summary: By coupling electrochemical testing to operando synchrotron based X-ray absorption and powder diffraction experiments, blended positive electrodes consisting of LiMn2O4 spinel (LMO) and layered LiNi0.5Mn0.3Co0.2O2 (NMC) were studied to understand their redox mechanism. It was found that blending NMC with LMO can enhance energy density at high rates, with the blend containing 25% LMO showing the best performance. Testing with a special electrochemical setup revealed that the effective current load on each blend component can vary significantly from the nominal rate and also changes with SoC. Operando studies allowed monitoring of the oxidation state evolution and changes in crystal structure, in line with the expected behavior of individual components considering their electrochemical current loads.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Chiara Cementon, Daniel Dewar, Thrinathreddy Ramireddy, Michael Brennan, Alexey M. Glushenkov
Summary: This Perspective discusses the specific power and power density of lithium-ion capacitors, highlighting the fact that their power characteristics are often underestimated. Through analysis, it is found that lithium-ion capacitors can usually achieve power densities superior to electrochemical supercapacitors, making them excellent alternatives to supercapacitors.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Weihao Wang, Hao Yu, Li Ma, Youquan Zhang, Yuejiao Chen, Libao Chen, Guichao Kuang, Liangjun Zhou, Weifeng Wei
Summary: This study achieved an improved electrolyte with excellent low-temperature and high-voltage performance by regulating the Li+ solvation structure and highly concentrating it. The electrolyte exhibited outstanding oxidation potential and high ionic conductivity under low temperature and high voltage conditions, providing a promising approach for the practical application of high-voltage LIBs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Martin Bures, Dan Gotz, Jiri Charvat, Milos Svoboda, Jaromir Pocedic, Juraj Kosek, Alexandr Zubov, Petr Mazur
Summary: Vanadium redox flow battery is a promising energy storage solution with long-term durability, non-flammability, and high overall efficiency. Researchers have developed a mathematical model to simulate the charge-discharge cycling of the battery, and found that hydraulic connection of electrolyte tanks is the most effective strategy to reduce capacity losses, achieving a 69% reduction.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
M. Rodriguez-Gomez, J. Campo, A. Orera, F. de La Fuente, J. Valenciano, H. Fricke, D. S. Hussey, Y. Chen, D. Yu, K. An, A. Larrea
Summary: In this study, we analysed the operando performance of industrial lead cells using neutron diffraction experiments. The experiments revealed the evolution of different phases in the positive electrode, showed significant inhomogeneity of phase distribution inside the electrode, and estimated the energy efficiency of the cells.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Jiawei Liu, Chenpeng Wang, Yue Yao, Hao Ye, Yinglong Liu, Yingli Liu, Xiaoru Xu, Zhicong Chen, Huazheng Yang, Gang Wu, Libin Lei, Chao Wang, Bo Liang
Summary: The study focuses on utilizing double conductive Ni-pads as anode collectors in micro-tubular solid oxide fuel cells. The simulation results show excellent performance and stability of DCNPs, and also highlight the potential applications in various fields.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yang Wang, Kangjie Zhou, Lang Cui, Jiabing Mei, Shengnan Li, Le Li, Wei Fan, Longsheng Zhang, Tianxi Liu
Summary: This study presents a polyimide sandwiched separator (s-PIF) for improving the cycling stability of Li-metal batteries. The s-PIF separator exhibits superior mechanical property, electrolyte adsorption/retention and ion conductivity, and enables dendrite-free Li plating/stripping process.
JOURNAL OF POWER SOURCES
(2024)
