Article
Biochemistry & Molecular Biology
Liang Jiao, Mengya Sun, Jie Yang, Weisheng Yang, Hongqi Dai
Summary: This study demonstrates the synthesis of lignin-derived electrolytes through cyclization with 1,4-dihydroxyanthraquinone (1,4-DHAQ) without the use of hazardous or noble metal catalysts. The structure of lignin anthraquinone derivatives (LAQDs) cyclized in alkaline solution was determined experimentally. Comparative studies were conducted on the electrochemical properties and cycling performances of two LAQDs. The LAQDs exhibited improved electrochemical activity compared to anthraquinone, making them a promising organic electrolyte material for aqueous redox flow batteries.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Nanoscience & Nanotechnology
Juan Asenjo-Pascual, Cedrik Wiberg, Mahsa Shahsavan, Ivan Salmeron-Sanchez, Pablo Mauleon, Juan Ramon Aviles Moreno, Pilar Ocon, Pekka Peljo
Summary: A highly soluble triazine derivative (SPr)(3)4TpyTz with three reversible redox processes and fast kinetics has been synthesized using a cost-effective and straightforward method. Concentrated single cell tests and DFT studies revealed a tendency of the reduced triazine species to form aggregates, which can be avoided by adjusting the electrolyte concentration. Under optimal conditions, (SPr)(3)4TpyTz exhibited no capacity decay, good Coulombic efficiency, voltage efficiency, and energy efficiency for the storage of two electrons. However, the storage of additional electrons led to capacity decay and an increase in electrolyte pH, indicating irreversible protonation of the generated species. A possible mechanism has been proposed. Higher concentrations of (SPr)(3)4TpyTz showed slightly higher capacity decay and lower efficiencies due to aggregate formation.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Energy & Fuels
Nilufer Kocyigit, Metin Gencten, Mutlu Sahin, Yucel Sahin
Summary: The Ce/Cr redox flow battery system was experimentally studied for the first time in an aqueous acidic medium, providing valuable data for potential alternative redox couples in redox flow batteries through optimization of acid and active ion concentrations, as well as analysis of electrode surface morphology. Results showed promising cell potential and discharge capacity values, indicating the potential for further exploration of alternative redox couples in redox flow batteries.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Review
Chemistry, Physical
Huan Zhang, Chuanyu Sun
Summary: To address the current energy crisis, an economical and environmentally friendly energy storage system like the redox flow battery (RFB) is essential for intermittent renewable energy sources. Particularly, the iron-based aqueous RFB (IBARFB) is gaining popularity due to its low cost and eco-friendliness, emerging as an ideal energy storage solution for large-scale applications.
JOURNAL OF POWER SOURCES
(2021)
Article
Nanoscience & Nanotechnology
Erik Schroeter, Christian Stolze, Adrian Saal, Kristin Schreyer, Martin D. Hager, Ulrich S. Schubert
Summary: This study investigates an all-organic Nernstian potential-driven redox targeting system that combines a single-electrode material from organic radical batteries with a single redox couple of an aqueous, organic redox flow battery. The experimental results demonstrate that 78-90% of the theoretical capacity of the electrode material from the organic radical battery can be addressed when it is used as the redox target in the electrolyte tank of an operating aqueous organic redox flow battery.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Zhichun Yu, Liuyue Cao, Huabo Liu, Da-Wei Wang
Summary: The study shows that the aqueous Zn/LiCoO2 hybrid battery with mildly alkaline ammonia-containing electrolyte exhibits remarkable cycling stability and excellent rate capability, promising exciting prospects for advanced aqueous zinc-based batteries with high voltage and high energy density.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Xiao Wang, Amir Lashgari, Jingchao Chai, Jianbing Jimmy Jiang
Summary: Membrane-free batteries have been successfully demonstrated in flow conditions, with detailed mechanistic studies conducted using operando spectroscopic techniques, opening up new avenues for practical applications of redox flow batteries.
ENERGY STORAGE MATERIALS
(2022)
Article
Energy & Fuels
Kashif Mushtaq, Tiago Lagarteira, Asad A. Zaidi, Adelio Mendes
Summary: An in-situ electrochemical method is introduced in this study, aiming to evaluate the performance of non-aqueous redox flow battery (NAqRFB). The model redox species used for performance assessment showed high coulombic efficiency and potential efficiency. Results indicated that ion exchange membranes like Nafion 117 & FAPQ-375-PP have lower crossover molar flux rate.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Engineering, Environmental
Chanho Noh, Yongjin Chung, Yongchai Kwon
Summary: Two new metal-organic complexes are suggested and used as redox couple for redox flow battery with KOH electrolyte, with TiPA complexes showing better stability and capacity retention compared to TEA complexes. Fe(TiPA) exhibits higher stability than Fe(TEA) and maintains good performance over 100 cycles.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Nadia L. Farag, Rajesh B. Jethwa, Alice E. Beardmore, Teresa Insinna, Christopher A. O'Keefe, Peter A. A. Klusener, Clare P. Grey, Dominic S. Wright
Summary: A series of triarylamines were synthesized and tested as catholytes in all-aqueous redox flow batteries. Tris(4-aminophenyl)amine showed the highest potential as a candidate. However, polymerization occurred during electrochemical cycling, leading to a decrease in active material and limitation in ion transport. The use of a mixed electrolyte system of H3PO4 and HCl inhibited polymerization, resulting in improved electrochemical performance.
Article
Chemistry, Physical
Yimin Zheng, Alvaro Perez Ramos, Hongchun Wang, Gonzalo Alvarez, Alvaro Ridruejo, Jing Peng
Summary: To address the limitations of conventional redox flow batteries (RFBs), a bicontinuous microemulsion-based RFB using methyl-p-benzoquinone and 2,2,6,6-Tetramethyl-1-piperidinyloxy as redox active materials for anolyte and catholyte, respectively, is proposed. By stabilizing a nanometer-scale aqueous and organic medium through a surfactant, the microemulsion electrolyte exhibits a wider electrochemical window and good ionic conductivity, enabling the use of non-aqueous redox species with high solubility and high redox potential to increase energy density. The resulting cell shows promising performance with 80%-85% Coulombic efficiency and 50% capacity retention over 30 cycles. Systematic analysis of performance limitations and capacity decay, along with a proposed dimerization mechanism for the anolyte, is presented, concluding with a discussion on the further efforts needed for the application of microemulsion-based RFBs.
MATERIALS TODAY ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Milica M. Vasic, Milos Milovic, Danica Bajuk-Bogdanovic, Tamara Petrovic, Milica J. Vujkovic
Summary: Vanadium-oxide-based materials with various oxidation states have been studied for their potential applications in rechargeable magnesium ion batteries, showing different performance based on phase composition and metal ion insertion behavior. The sluggish Mg2+ ion kinetics in MgV2O6 was attributed to poor electronic and ionic wiring, leading to complex redox behavior in the materials. Addition of carbon was found to enhance the charge storage behavior of MgV2O6, demonstrating an effective dual strategy for improving performance.
Article
Energy & Fuels
Olatunde S. Oladeji, Monisola I. Ikhile, Messai Mamo, Derek T. Ndinteh, Patrick G. Ndungu
Summary: This study evaluated the extracts of Garcinia kola, Cola Nitida, and Cola Accuminata for their potential application in dye-sensitized solar cells. The results showed that these extracts had different effects on the electrochemical properties and light-to-electricity conversion efficiency. In particular, the extract from Garcinia kola demonstrated better electrochemical and photovoltaic performance.
Article
Energy & Fuels
Ayodeji Adeniran, Alex Bates, Nicholas Schuppert, Ashwin Menon, Sam Park
Summary: The aqueous redox flow battery (RFB) is a promising technology for grid energy storage, offering high energy efficiency, long life cycle, easy scalability, and the potential for extreme low cost. This review explores recent advances in aqueous RFBs, highlighting novel chemistries, configurations, and the current standard in operating current density and energy efficiency. The advantages and disadvantages of various aqueous RFB systems are contrasted, and major challenges facing the technology are brought to attention, along with the current research trend and direction.
JOURNAL OF ENERGY STORAGE
(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, Applied
Linhao Yu, Hong Chen, Yingying Li, Zhe Wen, Yongdan Li
Summary: In this study, metallic cobalt supported on nitrogen-doped carbon material was used as an efficient catalyst for the oxidative esterification of 5-hydroxymethylfurfural (HMF) to furan-2,5-dimethylcarboxylate (FDMC). The carbonization temperature had a significant impact on the morphology and structure of Co/N-C samples. Co/ N-C calcined at 900 degrees Celsius showed the best catalytic performance, with a 73.8% FDMC yield at a 91.7% HMF conversion rate measured at 130 degrees Celsius for 20 hours with K2CO3 under 1 MPa O-2. The catalytic activity of Co/N-C was enhanced by the synergistic effect between metallic cobalt and nitrogen-doped carbon material. A reaction mechanism for FDMC formation was proposed.
Editorial Material
Chemistry, Applied
Zhaofu Fei, De Chen, Emiel J. M. Hensen, Yongdan Li, Rajenahally Jagadeesh
Article
Engineering, Environmental
Huawang Zhao, Xiaoyin Chen, Alexander J. Hill, Guohua Jing, Yongdan Li, Johannes W. Schwank
Summary: Pd/SSZ-13 catalysts were investigated for the simultaneous storage of NO and C3H6 at 100 degrees C. The effects of the state of Pd species on co-adsorption and release were studied under simulated exhaust conditions. The results showed that the NO storage capacity at 100 degrees C was enhanced by simultaneous NO + C3H6 adsorption. DRIFTs results showed that Pd2+ provides the adsorption sites for NO + C3H6 to form Pd2+(NO) (C3H6), which alleviates the inhibition effect of H2O on NO adsorption on Pd ions. The different release behaviors of NO + C3H6 are discussed based on the chemistry of NO and C3H6 adsorption and the effect of intermediate CO.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Qianyuan Qiu, Zheng-Ze Pan, Penghui Yao, Jiashu Yuan, Chun Xia, Yicheng Zhao, Yongdan Li
Summary: A bi-functional catalytic perovskite LaNi0.5Co0.5O3 (LNCO) is utilized as the cathode in a high-efficiency Li-O2 battery with a molten nitrate salt electrolyte at 160 degrees C. This LNCO cathode exhibits stable low charge-discharge overpotential and high energy efficiency over 100 cycles. The discharge product, Li2O, has a porous and fluffy morphology, facilitating the transfer of oxygen and other intermediate species. Li2O as a discharge product enables a higher theoretical specific energy density compared to Li2O2 in ambient temperature Li-O2 batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Tian Gan, Hexuan Song, Xinqiang Fan, Ye Liu, Shouqing Liu, Yicheng Zhao, Yongdan Li
Summary: A Sn-doped Ce0.8Sm0.2O2_delta (SDC) supported Sn-Ni alloy anode was designed and prepared through a dual-modification strategy. The substitution of Sn improved the mobility of lattice oxygen in SDC, and Sn exsolves from the oxide phase to form intermetallic compounds with Ni after reduction. The composite anode showed unprecedented activity in the electrochemical oxidation of H2 and CH3OH, with high power densities achieved using these fuels. This work opens a new path for the design of high-performance SOFC anodes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Parminder Kaur, Moonis Ali Khan, Yongdan Li, Ahmed A. S. Al-Othman, Zeid Abdullah Alothman, Mika Sillanpaa, Ville Kuokkanen, Monzur A. Imteaz, Saleh Al-Farraj
Summary: The effectiveness of bifacial mixed metal-metal organic framework (MOF) anodes for municipal wastewater's photoelectro-catalytic (PEC) treatment is explored. The removal efficiency of pollutants from municipal wastewater and the impact of operational parameters are verified using TiO2-Bi(mixed metal)-MOF and TiO2-Sb(mixed metal)-MOF anodes in a visible light range. The study shows that TiO2-Bi(mixed metal)-MOF anodes in the PEC system play a positive role in removing micropollutants and disinfecting municipal wastewater, with high efficiency.
JOURNAL OF CLEANER PRODUCTION
(2023)
Review
Biochemistry & Molecular Biology
Huanghao Ning, Yongdan Li, Cuijuan Zhang
Summary: Reducing CO2 emissions and converting it into valuable chemicals is important, and integrating the capture and utilization processes is a feasible option to reduce transportation costs.
Article
Chemistry, Multidisciplinary
Jie Zheng, Rui Xia, Congli Sun, Najma Yaqoob, Qianyuan Qiu, Liping Zhong, Yongdan Li, Payam Kaghazchi, Kangning Zhao, Johan E. ten Elshof, Mark Huijben
Summary: Fast and durable lithium storage in entropy-stabilized Fe0.4Ti1.6Nb10O28.8 (FTNO) is achieved by tuning entropy via Fe substitution. Increasing the entropy leads to reduced grain size and a shorter Li+ pathway along diffusion channels. The increased entropy also stabilizes the lithium intercalation channel by decreasing expansion along the a-axis.
Article
Chemistry, Applied
Qianyuan Qiu, Jilan Long, Penghui Yao, Jiaqi Wang, Xiang Li, Zheng-Ze Pan, Yicheng Zhao, Yongdan Li
Summary: Lithium oxygen battery (LOB) is a promising energy storage device for electric vehicles due to its high energy density, but its electrochemical performances are unsatisfactory. This article reviews the recent progress in cathode materials and reaction mechanism of LOBs. The principles and requirements for cathode materials are discussed, and the performance of LOBs with different cathode materials is described. Approaches to improve cathode performance and research trends on cathode catalyst are proposed.
Article
Chemistry, Physical
Xuelan Hou, Hang Zhang, Ramesh Raju, Yongdan Li, Peter D. Lund
Summary: Improving light absorption and conversion ability is crucial for enhancing the performance of photoelectrochemical (PEC) cells in converting solar radiation into chemical energy. This study demonstrates a simple and low-cost method to prepare a nanostructured TiOx film with tunable absorption range from 250 to 2500 nm, surpassing the absorption edge of TiO2. The film shows superior light capture ability and a 10-fold increase in charge carrier transfer rate under AM 1.5 G light. It has potential for large-area PEC cells with promoted charge carriers' transfer.
JOURNAL OF POWER SOURCES
(2023)
Article
Electrochemistry
Bingxue Wu, Jian Zhang, Zhi Yang, Xuanlin Lu, Xin Zhao, Wen Liu, Jiaxuan Chen, Yicheng Zhao, Yongdan Li
Summary: In this study, a Ni-Ce0.8Sm0.2O2-δ anode with low Ni content is successfully synthesized through a polymer-directed evaporation-induced self-assembly strategy. The anode exhibits an enlarged triple-phase boundary region and improved reactivity of lattice oxygen due to the even distribution of Ni. With 5 wt.% Ni, the anode shows the lowest polarization resistance and the highest amounts of oxygen vacancies and Ce3+/Ce4+ redox pairs, resulting in improved charge transfer process and excellent stability.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Mingze Yang, Anna Lenarda, Sana Frindy, Yushuai Sang, Valtteri Oksanen, Adriano Bolognani, Lisa Hendrickx, Juho Helaja, Yongdan Li
Summary: This study investigates a metal-free route to synthesize biphenyls using a carbon catalyst, demonstrating that air-oxidized active carbon exhibits the best activity and the catalyst is highly recyclable. The mechanism of the reaction is proposed to be based on the redox cycle of the quinoidic groups on the carbon surface, and the addition of a catalytic acid is found to accelerate the reaction.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Chemistry, Multidisciplinary
Jinze Wu, Hui Liu, Yongdan Li, Cuijuan Zhang
Summary: Amorphous BiOx, prepared on the surface of NASICON electrolyte using the photochemical metal-organic deposition method, can greatly enhance the interfacial properties at the anode side. The Na symmetric cell operates at a critical current density of 1.2 mA cm(-2) and cycles steadily at 0.5 mA cm(-2) for 1000 h at 30 °C.
CHEMICAL COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Najla Grioui, Amal Elleuch, Kamel Halouani, Yongdan Li
Summary: This study investigates the feasibility of using exhausted olive pomace biochar as a fuel in a direct carbon fuel cell. The results confirm the feasibility, with a maximum power density of 10 mW cm(-2) at 700 degrees C. The limited output of the fuel cell is attributed to the high ash content and low volatile matter content of the biochar.
C-JOURNAL OF CARBON RESEARCH
(2023)
Article
Chemistry, Physical
Qianyuan Qiu, Jiaqi Wang, Penghui Yao, Yongdan Li
Summary: In this study, a facile coprecipitation approach was used to synthesize a LaNi0.5Co0.5O3 perovskite oxide with a low annealing temperature, which was then utilized as the cathode material for a lithium-oxygen battery. The assembled battery exhibited superior electrochemical performance and stable operation.
FARADAY DISCUSSIONS
(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)
