Article
Energy & Fuels
Xukun Zhang, Fancheng Meng, Linquan Sun, Zhaowu Zhu, Desheng Chen, Lina Wang
Summary: Choosing suitable stability additives is an effective approach to improve the operational stability of electrolytes in vanadium redox flow battery technology. This study investigated the effects of five phosphate containing additives on the thermal stability and electrochemical performance of the positive electrolyte. Most of the selected additives improved the thermal stability and enhanced the electrochemical activity of the electrolyte. The study provides a new approach to improve the stability of the positive electrolyte for vanadium redox flow battery.
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
Chemistry, Analytical
Jusong Wi, Songhyok Jon, Gukhyon Pae, Yongok Kim, Sangmo Jon
Summary: In this study, a digital imaging method was proposed to analyze the concentrations of V(IV) and V(III) in vanadium electrolyte. The blue channel exhibited the best sensitivity and linearity. The method showed high precision and good agreement with potentiometric titration.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Electrochemistry
Chao Hu, Yuming Dong, Wei Zhang, Hongling Zhang, Peng Zhou, Hongbin Xu
Summary: This report suggests that the addition of sodium phosphate (Na3PO4) into the electrolyte of vanadium redox flow battery (VRFB) can effectively enhance the thermal stability of the electrolyte and significantly improve the discharge capacity at high temperatures. The introduction of Na3PO4 enables the positive electrolytes with 2 M vanadium ions to maintain stability at 50℃ for over 7 days, while the electrolytes without Na3PO4 show significant precipitation on the first day. In addition, a cell containing 0.3 M Na3PO4 exhibits a capacity retention of 83.02% after undergoing 100 cycles, which is nearly 13.2% higher than the pristine cell. After investigating the electrochemical performance of a cell containing 0.3 M Na3PO4 at 50℃, it is discovered that the energy efficiency of 80% can be maintained at 150 mA cm-2. Additionally, the capacity retention rate of the cell after 100 cycles is 28.47% higher than that of the pristine cell. Therefore, Na3PO4 is a potentially effective additive for VRFB in long-term thermal stability and capacity retention, thereby reducing the thermal management cost of energy storage systems and providing a broad prospect for the application of VRFB.
ELECTROCHIMICA ACTA
(2023)
Article
Energy & Fuels
Ivan Kuzmin, Alexey Loskutov, Evgeny Osetrov, Andrey Kurkin
Summary: The article discusses the urgent task of developing and mass producing energy storage systems, specifically focusing on flow batteries and uninterruptible power systems. Flow batteries are seen as an efficient solution for long-term energy storage, with vanadium redox flow batteries being of particular interest due to their long service life. The key elements of a flow battery are the stack and the electrolyte, which determine the power, efficiency, energy capacity, and service life of the battery.
Article
Green & Sustainable Science & Technology
Ning-Yih Hsu, Nitika Devi, Yu- Lin, Yi-Hsin Hu, Hung-Hsien Ku, Amornchai Arpornwichanop, Yong-Song Chen
Summary: This study investigates the performance of hydrogen-vanadium redox flow batteries under various conditions, finding that platinum loading and positive electrolyte flow rate significantly impact battery performance, with the best performance achieved at a catalyst loading of 0.3 mg Pt cm(-2) and a positive electrolyte flow rate of around 2 L h(-1). The HVRFB demonstrates an energy efficiency of around 88% when operated at a current density of 80 mA cm(-2) for 200 cycles.
Review
Chemistry, Multidisciplinary
Yun Guo, Jie Huang, Jun-Kai Feng
Summary: All-vanadium redox flow battery (VRFB) has attracted great attention from scholars at home and abroad as a large energy storage battery. The electrolyte, as the active material of VRFB, has been the focus of research. This work reviews the preparation methods of VRFB electrolyte, with emphasis on chemical reduction, electrolysis, solvent extraction, and ion exchange resin. The principles, technological processes, advantages, and disadvantages of each method are briefly described. The effects of different additives on high concentration electrolyte are also introduced. Finally, the development of vanadium electrolyte preparation technology is prospected.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
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
Energy & Fuels
Kyu Heon Rho, Sang Jun Yoon, Jaiyoung Ryu, Sung Min Cho, Min Soo Kim, Dong Kyu Kim
Summary: This study investigates the temperature distribution of vanadium redox flow batteries and identifies the factors that influence temperature through experiments and theoretical analysis. The results show that the temperature of the electrodes varies during charge and discharge processes, with differences compared to the outside temperature. The operating conditions, including current density, flow rate, and cell design, significantly affect the minimum temperature. An empirical equation is developed to determine the proper operating conditions for preventing precipitation in cold climates.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
X. Michel Myures, S. Suresh
Summary: In this study, nitrogen-doped reduced graphene oxide (N-rGO) was synthesized as an electro-catalyst for the positive half-cell in VRFB. The nanofluidic electrolyte based on N-rGO exhibited better electrochemical reversibility and improved performance in terms of current density, overpotential, and charge transfer resistance compared to the base electrolyte. The enhanced electrochemical performance was attributed to the increased electrochemical surface area, electrical conductivity of N-rGO, and improved hydrophilicity of the nanofluid.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Hee Seo Kim, Yong Jae Suh, Dae Woo Kim, Pham Tan Thong, Ho-Young Jung, Ho-Seok Jeon, In-Su Park, Hye-Jin Hong
Summary: The vanadium redox flow battery has gained extensive attention due to the growing need for safe energy storage systems. The direct recovery of VO(OH)2 from vanadium leaching solution through a reduction-precipitation process simplifies the preparation of a vanadium electrolyte and demonstrates high efficiency in battery performance.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Physical
Chao Hu, Yuming Dong, Wei Zhang, Hongling Zhang, Peng Zhou, Hongbin Xu
Summary: This study proposes a simple, green and low-cost method to prepare mixed valent vanadium electrolyte for vanadium redox flow batteries (VRFB). By using clean hydrogen as the reducing agent and Pt/C as the catalyst, the impurity-free mixed valent vanadium electrolyte is obtained, exhibiting excellent battery performance. Additionally, a catalytic reactor is designed and used for continuous production of the electrolyte. Cost analysis shows that the proposed catalytic hydrogen reduction process can significantly reduce manufacturing costs.
JOURNAL OF POWER SOURCES
(2023)
Article
Energy & Fuels
Hao Wang, S. Ali Pourmousavi, Wen L. Soong, Xinan Zhang, Nesimi Ertugrul, Bingyu Xiong
Summary: In this paper, a model-based nonlinear dynamic optimisation (MNDO) method is proposed and implemented to study the optimal flow rate under constant current (CC) and constant current-constant voltage (CC-CV) charging methods for a vanadium redox flow battery (VRFB) system. The proposed method enhances the overall VRFB system efficiency under different charging methods, with the CC-CV method being more energy-efficient but requiring more charging time. The results also highlight the merits of the CC-CV charging method in saving energy and reducing system imbalance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Pavel Loktionov, Dmitry Konev, Roman Pichugov, Mikhail Petrov, Anatoly Antipov
Summary: An operando coulometric analysis method for assessing vanadium redox flow battery (VRFB) electrolyte is proposed, which detects the overall vanadium content and average oxidation state (AOS), and performs stably under imbalance conditions.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Multidisciplinary
Felix Behnisch, Carl-Christoph Hoehne, Lukas Manas, Philipp Rosenberg, Frank Henning
Summary: Epoxy resins are widely used in aircraft composite materials, but are hard to recycle; on the other hand, polyurethane resins can be chemically recycled, but carbon fibre-reinforced polyurethanes are not yet used in aircraft applications; in order to improve the recyclability of aircraft parts, CF-PUR components meeting flame retardant regulations and quality requirements are needed.
FIRE AND MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Michael Kuettinger, Paulette A. Loichet Torres, Emeline Meyer, Peter Fischer
Summary: This study systematically investigates the properties of bromine complexing agents (BCA) in aqueous electrolytes for hydrogen bromine flow batteries. The aim is to reduce bromine's vapour pressure and form an insoluble and liquid fused salt. The concentrations, composition, conductivity, and viscosity of the fused salt are examined using 7 BCAs at different state of charge in HBr/Br-2/H2O electrolytes. The research shows that the conductivity and viscosity of the fused salts are strongly influenced by the alkyl side chain length of the BCAs and the distribution of polybromides.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Physical
Michael Kuettinger, Raphaeel Riasse, Jakub Wlodarczyk, Peter Fischer, Jens Tuebke
Summary: This study proposes a solution to the problem of reduced membrane conductivity and high overvoltage in hydrogen bromine redox flow batteries by excess addition of bromine to the electrolytes, leading to the formation of a permanent bromine fused salt phase. This results in improved posolyte capacity and better cell performance compared to previous investigations.
JOURNAL OF POWER SOURCES
(2022)
Review
Biochemistry & Molecular Biology
Peter Fischer, Petr Mazur, Joanna Krakowiak
Summary: Aqueous-based organic electrolytes are considered a more promising option for achieving green, safe, and low-cost energy storage. Many organic compounds and their derivatives have been intensively studied and applied in redox flow batteries.
Article
Chemistry, Physical
Misgina Tilahun Tsehaye, Nak Heon Choi, Peter Fischer, Jens Tubke, Emilie Planes, Fannie Alloin, Cristina Iojoiu
Summary: Four anion exchange membranes incorporating multi N-spirocyclic quaternary ammoniums were prepared and tested as separators in zinc slurry-air flow batteries. These membranes exhibited high hydroxide ion conductivity, low zincate ion diffusion coefficient, and great alkaline stability, making them promising materials for rechargeable ZSAFBs.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Matthias F. Ernst, Annabelle Maletzko, Sascha Baumann, Nils Baumann, Christof Hubner, Carl-Christoph Hoehne
Summary: Additive manufacturing shows great potential in the production of objects with customized inner structures, especially in the field of polymer compounds. However, the design possibilities for the inner structure are influenced by printing resolution, accuracy, and reproducibility. This study investigates the production of small porous structures using Ultimaker 3 and different polymer compounds, analyzing the effects of various factors on printing behavior and accuracy.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2022)
Review
Green & Sustainable Science & Technology
Michael Dieterle, Peter Fischer, Marie-Noelle Pons, Nick Blume, Christine Minke, Aldo Bischi
Summary: This study reviewed 20 life cycle assessment studies for different flow battery systems and explored the sustainability issues. Recommendations for comparative life cycle assessment studies were derived, which are also relevant to the amendment of the Batteries Directive.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Biochemistry & Molecular Biology
Maria E. Filkina, Daria N. Baray, Elena K. Beloglazkina, Yuri K. Grishin, Vitaly A. Roznyatovsky, Maxim E. Kukushkin
Summary: In this study, a highly regioselective synthesis of spiro-pyrazoline-imidazolidine-2,4-diones was proposed based on a 1,3-dipolar cycloaddition reaction. Regardless of whether the aryl substituents on the nitrile imine were electron donors or acceptors, the cycloaddition proceeded with high regioselectivity towards the exocyclic C=C double bond of the 5-methylidene-hydantoin. The observed regioselectivity was rationalized using DFT calculations.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Thermodynamics
Carl-Christoph Hoehne, Volker Gettwert, Fabian Frank, Sascha Kilian, Andreas Menrath
Summary: The fire behaviour of electric vehicles differs from combustion engine vehicles, and special fire protection measures are required for the rechargeable energy storage system (REESS). Full-scale fire resistance tests are mandatory but not applicable for materials used in the development of REESS housings. This paper describes a bench-scale fuel fire test to evaluate REESS housing materials on a laboratory scale.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Engineering, Manufacturing
Carl-Christoph Hoehne, Philipp Blaess, Sergej Ilinzeer, Patrick Griesbaum
Summary: This study examined the electromagnetic shielding and flame retardancy of unsaturated polyester polyurethane hybrid (UPPH) resin-based SMCs containing different fillers and reinforcements. The best results were achieved with UPPH composites containing 50 wt-% carbon fibers and 11.5 wt-% expandable graphite.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Biochemistry & Molecular Biology
Dmitry E. E. Shybanov, Maxim E. E. Kukushkin, Yanislav S. S. Hrytseniuk, Yuri K. K. Grishin, Vitaly A. A. Roznyatovsky, Viktor A. A. Tafeenko, Dmitry A. A. Skvortsov, Nikolai V. V. Zyk, Elena K. K. Beloglazkina
Summary: Novel hydantion and thiohydantoin-based spiro-compounds were synthesized via the regioselective and stereoselective Diels-Alder reactions. The reactions with cyclic dienes produced exo-isomers, while the reactions with isoprene yielded less sterically hindered products. The reactions of methylideneimidazolones required heating with cyclopentadiene, but catalysis by Lewis acids with cyclohexadiene, 2,3-dimethylbutadiene, and isoprene. ZnI2 was found to be an effective catalyst in the reactions of methylidenethiohydantoins with non-activated dienes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Electrochemistry
Daniel Gerlach, Jens Noack, Katharina Bischof, Chloe Le Boulch, Sabine Trupp
Summary: In order to successfully enter the market with redox flow batteries, both technical performance and economic efficiency of the system are important. Known flow batteries must be optimized technologically and economically for specific applications. Not every technical improvement has the same positive impact on the economically relevant performance or energy-related costs. Through the use of optimization potential as a value, prioritization of specific optimization approaches can be determined in concrete cases.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Inorganic & Nuclear
Gleb V. Morozkov, Anton S. Abel, Konstantin A. Lyssenko, Vitaly A. Roznyatovsky, Alexei D. Averin, Irina P. Beletskaya, Alla Bessmertnykh-Lemeune
Summary: In this study, four mixed-ligand Ru(II) complexes were synthesized and characterized. It was found that the emission spectra of these complexes in aqueous solutions varied depending on the substitution position of the heterocycle. Among them, Ru-4,7PHEt exhibited higher photocatalytic efficiency and could be recycled through water extraction.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Dmitry E. Shybanov, Maria E. Filkina, Maxim E. Kukushkin, Yuri K. Grishin, Vitaly A. Roznyatovsky, Nikolai Zyk, Elena K. Beloglazkina
Summary: Spontaneous diffusion of volatile reagent vapors into a solution is a simple method for carrying out organic reactions. In this study, this technique was used to generate reactive intermediates for 1,3-dipolar cycloaddition reactions. The diffusion of volatile tertiary amines into the reaction mixture allowed for high yields of the desired products without side product formation.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
P. S. Lemport, M. Evsiunina, P. Matveev, V. S. Petrov, A. S. Pozdeev, E. K. Khult, Yu Nelyubina, K. L. Isakovskaya, V. A. Roznyatovsky, I. P. Gloriozov, B. N. Tarasevich, A. S. Aldoshin, V. G. Petrov, S. N. Kalmykov, Yu A. Ustynyuk, V. G. Nenajdenko
Summary: In this study, new examples of phenanthrolindiamides with asymmetric centers in amide substituents were synthesized and their structures were confirmed by spectral analysis and X-ray analysis. The synthesized ligands were found to form complexes with nitrates of rare-earth elements, and the stability constants of these complexes in acetonitrile solution were measured. Solvent extraction experiments showed that the presence of methyl groups in cyclic amide substituents significantly affected the distribution ratios and selectivity factors in the lanthanides(iii) and Am(iii) series.
INORGANIC CHEMISTRY FRONTIERS
(2022)
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)
