Article
Chemistry, Physical
Mehrzad Soleimany, M. H. Paydar, Shaorong Wang
Summary: The study found that NiO doping can improve the flash-sintering performance of the BZCY7 compound, reducing the onset temperature and enhancing sinterability. NiO doping leads to larger grain sizes without segregation or second-phase formation. Additionally, the conductivity and activation energy of NiO-doped samples were higher than undoped samples.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Ceramics
Shoucheng He, Hailu Dai, Lei Bi
Summary: The La0.4K0.1Ca0.5MnO3-delta (LKCM) material was successfully prepared by partially replacing La cations with K cations in La0.5Ca0.5MnO3-delta (LCM). Doping K triggered the cathode activity of the material, and LKCM showed more oxygen vacancies and improved catalytic activity than LCM. Therefore, a proton-conducting solid oxide fuel cell (H-SOFC) using an LKCM cathode exhibited better performance than the LCM cell.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Ruoqi Tang, Xin Men, Liling Zhang, Lei Bi, Zhenning Liu
Summary: A new honeycomb-shaped LSFP material is proposed as a cathode for H-SOFCs, which offers a higher surface area without changing the crystal or electronic structure. The honeycomb LSFP cathode shows higher power density and improved ORR, making it a promising option for H-SOFCs.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Electrical & Electronic
S. Paydar, I. Gholaminezad, H. Shirani-Faradonbeh, S. Imanlou, N. Akbar, M. H. Paydar
Summary: The study evaluated the effects of zirconium replacement by cerium on the polarization characteristics of composite cathodes using impedance spectroscopy analysis. Results showed that YSZ8 and CZY sintered at 1250°C, as well as CY sintered at 1350°C, exhibited the highest electrochemical performance of the cathodes.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Caterina Sanna, Wenjing Zhang, Paola Costamagna, Peter Holtappels
Summary: The study reports the synthesis and electrochemical characterization of composite cathodes made from a mixture of LSCF and GDC nanofibers. The electrodes showed low polarization resistance at 650 degrees C, indicating promising potential for practical applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Shraddha Shirbhate, Twinkle Badekar, Vishwajit Gaikwad, Smita Acharya
Summary: Solid electrolytes with high ionic conductivity are highly desirable for improving the efficiency of Solid Oxide Fuel Cells (SOFCs) at lower temperatures (350-500 degrees C). In this study, Ba3SrNb2O9 (BSNO) was successfully synthesized using the solgel combustion method. The conductivity of the BSNO system was systematically studied using Electrochemical Impedance Spectroscopy at temperatures ranging from 350 to 500 degrees C. The results showed that the BSNO system exhibited a conductivity of 5.8 x 10(-3) Scm(-1) at 500 degrees C with an activation energy of 0.48 eV. The charge relaxation phenomenon was explored using impedance loss spectra and correlated with the modulus as a function of frequency at different temperatures.
Article
Chemistry, Physical
Muhammad Bilal Hanif, Sajid Rauf, Michal Mosialek, Kashif Khan, Vilma Kavaliuk, Algimantas Kezionis, Tomas Salkus, Jacek Gurgul, Dmitry Medvedev, Malgorzata Zimowska, Dominika Madej, Martin Motola
Summary: This study prepared single-phase BaCe0.9-xMoxY0.1O3-delta electrolyte via sol-gel method and investigated its structure, composition, electrochemical performance, and thermal stability. The conductivity of the grain interior and boundaries between 127 and 727 degrees C was reported for the first time in SOFC studies.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Ceramics
Ruoqi Tang, Xin Men, Liling Zhang, Lei Bi, Zhenning Liu
Summary: A suitable solid solution of LSM and LSF was selected as the cathode for H-SOFCs by screening a series of LSM-LSF solid solutions using first-principles calculations. LSMF75 exhibited superior properties compared to LSMF125 in terms of oxygen vacancy formation energy, O-2 adsorption energy, bond length of adsorbed O-2, and O p-band center. Experimental investigations further revealed that the H-SOFC with the LSMF75 cathode performed better than the cell with the LSMF125 cathode.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Hongzheng Li, Ying Li, Wenlong Huang, Yushi Ding
Summary: KNbO3 and KNb0.9M0.1O3-α (M = Ti, Hf, Zr, Sc, In, Yb) were synthesized and characterized for their conductivity. Among them, KNb0.9In0.1O3-α showed the highest conductivity. The conductivity order in different atmospheres was wet air > wet Ar > dry Ar. KNb0.9In0.1O3-α was found to be a nearly pure proton conductor below 625°C. It also exhibited excellent chemical stability against CO2 and H2O, but should be used with caution to avoid rapid heating and cooling.
SOLID STATE IONICS
(2023)
Article
Chemistry, Physical
K. Cwieka, A. Lysik, T. Wejrzanowski, T. Norby, W. Xing
Summary: This paper demonstrates the influence of modifications in microstructure and chemical composition on the electrochemical behavior of cathodes for molten carbonate fuel cells (MCFCs). By designing new three-layer cathode structures, combining porous silver, nickel oxide, and nickel foam layers, it is possible to enhance cell performance, decrease internal resistance, and improve charge transfer and mass transport efficiency.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Fei Ruan, Ruming Wu, Yang Li, Jinxiao Bao, Jianquan Gao, Fen Zhou, Min Xie, Pengfei Xu, Xiwen Song
Summary: In this study, a solid-state electrolyte Er-doped CaZrO3 was successfully prepared and its microstructures and electrochemical properties were investigated. Protons were identified as the predominant charge carriers in a hydrogen atmosphere at high temperatures, while the ionic electrical conductivity decreased with increasing Er2O3 doping.
Article
Materials Science, Ceramics
Leire Caizan-Juanarena, Javier Zamudio-Garcia, David Marrero-Lopez
Summary: This study investigated the electrochemical properties and ORR subprocesses of Pr6O11-infiltrated cathodes with different porous backbone layers. The results showed that a backbone layer with high ionic conductivity can decrease the polarization resistance, but also increase the series resistance.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Fenglong Zhang, Fei Ruan, Jinxiao Bao, Yang Li, Yuwei Ma, Rui Chen
Summary: The doping of Y2O3 has a significant influence on the electrical conductivity of CaHf1-xYxO3-delta, resulting in an initial increase and subsequent decrease with increasing x. Protons are found to be the main conductive carriers in the three different atmospheres at temperatures between 973 and 1173 K. Positive holes dominate the conductive process in an oxygen-rich atmosphere, while vacancies act as the main conductive carriers in a water vapor-rich atmosphere, within the temperatures range of 1273-1373 K. The chemical diffusion coefficients of CaHf1-xYxO3-delta range from 3.9 x 10(-6) to 2.4 x 10(-5) cm(2)/s at temperatures between 973 and 1373 K. The proton transfer number of CaHf1-xYxO3-delta exceeds 97% in a hydrogen atmosphere from 973 to 1173 K. These findings suggest that CaHf1-xYxO3-delta could serve as an alternative material for hydrogen sensor electrolytes.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Coatings & Films
Gaurav Chasta, M. S. Dhaka
Summary: To achieve densification of SOFC, the traditional YSZ electrolyte layer needs to be sintered at high temperatures, which compromises the mechanical integrity of other functional layers. In this study, 3 wt% TiO2 added YSZ electrolyte material was used to prepare thin electrolyte films. The sintering temperature was optimized for better structural and electrochemical performance. The addition of TiO2 resulted in improved properties of the electrolyte films, including increased crystallite size and reduced roughness, enhancing the ionic conductivity.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Juan Basbus, Mauricio Arce, Horacio Troiani, Fernando Prado, Liliana Mogni, Adriana Serquis
Summary: The study systematically investigated the high temperature properties of BaCe0.4Zr0.4Pr0.2O3-delta, exploring its potential application as a PC-SOFC cathode through conductivity measurements and structural analysis. It was found that the compound has low conductivity but good thermomechanical compatibility with electrolytes.
NEW JOURNAL OF CHEMISTRY
(2021)
Review
Chemistry, Physical
Ragnar Kiebach, Steven Pirou, Lev Martinez Aguilera, Astri Bjornetun Haugen, Andreas Kaiser, Peter Vang Hendriksen, Maria Balaguer, Julio Garcia-Fayos, Jose Manuel Serra, Falk Schulze-Kueppers, Max Christie, Liudmila Fischer, Wilhelm Albert Meulenberg, Stefan Baumann
Summary: Oxygen transport membranes (OTMs) are a promising technology for oxygen production, offering lower costs and power consumption compared to cryogenic air separation or pressure swing adsorption. Dual-phase OTMs, composed of a stable ionic conductor and electronic conductor composite, have advantages over single-phase membranes in terms of chemical and mechanical stability. However, challenges remain in their large-scale employment.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Sara Escorihuela, Cristina Cerda-Moreno, Fynn Weigelt, Sonia Remiro-Buenamanana, Sonia Escolastico, Alberto Tena, Sergey Shishatskiy, Torsten Brinkmann, Antonio Chica, Jose M. Serra
Summary: In this study, thin-film composite membranes (TFCM) were developed for in-situ water removal in a catalytic membrane reactor (CMR) for the Sabatier process, enabling higher catalytic stability and activity at elevated temperatures. The TFCM-mediated water extraction significantly improved CO2 conversion stability, with a notable increase in CO2 conversion rate and specific flux.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Multidisciplinary Sciences
Daniel Clark, Harald Malerod-Fjeld, Michael Budd, Irene Yuste-Tirados, Dustin Beeaff, Simen Aamodt, Kevin Nguyen, Luca Ansaloni, Thijs Peters, Per K. Vestre, Dimitrios K. Pappas, Maria Valls, Sonia Remiro-Buenamanana, Truls Norby, Tor S. Bjorheim, Jose M. Serra, Christian Kjolseth
Summary: Proton ceramic reactors efficiently extract hydrogen from ammonia, methane, and biogas by combining endothermic reforming reactions with heat from electrochemical gas separation and compression. The successful scale-up to a 36-cell reactor stack demonstrates its potential in efficient hydrogen production, with complete conversion and high recovery rates of methane and ammonia even at high pressures.
Article
Engineering, Chemical
Elisa Mercadelli, Angela Gondolini, Matteo Ardit, Giuseppe Cruciani, Cesare Melandri, Sonia Escolastico, Jose M. Serra, Alessandra Sanson
Summary: This study investigated the hydrogen permeation of BCZY-GDC asymmetric membranes for 100 hours using wet 15% CO2 in Ar as the sweep gas. The results showed that the asymmetric membranes exhibited promising and stable hydrogen permeation flux values under the test conditions, and no structural or morphological changes were detected after the testing.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
L. Navarrete, C. Hannahan, J. M. Serra
Summary: The effect of B-site substituted cations on the stability and electrochemical performance of Ba0.5Sr0.5Co0.8Fe0.2O3-delta perovskite was investigated. The presence of these substituted cations improved stability by preventing the formation of detrimental phases and reducing the formation of carbonates. Symmetrical cell testing showed that the Sc-substituted material mixed with GDC had the lowest polarization resistance and was chosen as the cathode for the full cell construction. The composite electrode exhibited encouraging power density and stability.
SOLID STATE IONICS
(2022)
Article
Materials Science, Multidisciplinary
Daniel Hausmann, Lisa Patricia Freund, Cecilia Solis, Sven Giese, Mathias Goeken, Ralph Gilles, Steffen Neumeier
Summary: The crack susceptibility during processing greatly affects the workability of wrought alloys. The study focused on the formability and cracking behavior of the CoNi-base superalloy CoWAlloy1 during hot rolling. It was found that the precipitation of gamma ' and the absence of recrystallization led to pronounced crack propagation and limited formability below the gamma ' solvus temperature.
Article
Chemistry, Physical
Yubing Li, Lei Zeng, Ge Pang, Xueer Wei, Mengheng Wang, Kang Cheng, Jincan Kang, Jose M. Serra, Qinghong Zhang, Ye Wang
Summary: The direct hydrogenation of CO2 to gasoline and olefins using bifunctional iron-zeolite tandem catalysts operated at high temperatures (>300 degrees C) can efficiently utilize CO2 from industrial combustion and green H2 produced by solid oxide electrolytic cells (SOEC). The optimized FeMnK+H-ZSM-5 catalyst achieves a selectivity of 70% for C5-C11 range hydrocarbons and 17% for C2-C4 lower olefins at 320 degrees C. The conversion levels of CO2 and the aromatics contents are significantly enhanced at higher temperatures.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Chemical
Marwan Laqdiem, Julio Garcia-Fayos, Laura Almar, Maria Balaguer, Jose M. Serra
Summary: Oxygen transport membranes (OTMs) are attractive for decarbonization of the industry, but the oxygen permeation remains a limitation. Dual-phase composite materials have potential as membrane candidates due to their stability under CO2 atmospheres. The phase ratio in the catalytic layers affects the surface-exchange reactions and plays a crucial role in improving the oxygen flux.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Physical
Marwan Laqdiem, Alfonso J. Carrillo, Georgios Dimitrakopoulos, Maria Balaguer, Julio Garcia-Fayos, Ahmed F. Ghoniem, Jose M. Serra
Summary: This study investigates the application of cerium oxide (CeO2) particles in solar-driven thermochemical cycles and explores the effect of doping with other cations on oxygen-vacancy concentration and crystal lattice. The results show that doping can enhance fuel yield and redox oxygen-exchange kinetics.
SOLID STATE IONICS
(2023)
Article
Chemistry, Physical
S. Escolastico, M. Balaguer, C. Solis, F. Toldra-Reig, S. Somacescu, U. Gerhards, A. Aguadero, K. Haas-Santo, R. Dittmeyer, J. M. Serra
Summary: Catalytic membrane reactors based on H2-separation membranes can enhance the performance of thermodynamically-limited reactions. This study characterizes the stability of La5.4WO11.1-& delta; protonic membrane material under H2S conditions and demonstrates the changes in crystalline structure and transport properties caused by the incorporation of sulfur.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Daria Balcerzak, Iga Szpunar, Ragnar Strandbakke, Sarmad W. Saeed, Calliope Bazioti, Aleksandra Mielewczyk-Gryn, Piotr Winiarz, Alfonso J. Carrillo, Maria Balaguer, Jose M. Serra, Maria Gazda, Sebastian Wachowski
Summary: This study investigated the Lu doping of Ba0.5La0.5CoO3 and its effect on the exsolution of oxide nanoparticles. The Lu doping caused phase segregation into the main BLCO-Lu phase and the secondary BCO-Lu phase. Exsolution of BCO-Lu nanoparticles on the main BLCO-Lu phase and vice versa was observed, indicating mutual exsolution of oxide NPs. Trace amount of the BaLuCo4O7 phase was also detected. The size and shape of the exsolved oxide NPs could be controlled by varying the annealing temperature. The findings provide potential for designing novel, more catalytically active materials for future electrochemical devices.
Article
Chemistry, Inorganic & Nuclear
Aleksandra Mielewczyk-Gryn, Shuhao Yang, Maria Balaguer, Ragnar Strandbakke, Magnus H. Sorby, Iga Szpunar, Agnieszka Witkowska, Sebastian Wachowski, Jose M. Serra, Alexandra Navrotsky, Maria Gazda
Summary: This study investigates the formation energetics and stability of BaLnCo(2)O(6-delta) (Ln = La, Pr, Nd, and Gd) (BLnC) and BaGd1-xLaxCo2O6-delta, where x = 0.2, 0.5, and 0.7 (BGLC) double perovskite cobaltites under high water partial pressure. These materials have potential applications in electrochemical devices as positrodes. It is found that all investigated materials are thermodynamically stable relative to binary oxides and exhibit exothermic enthalpies of formation. The BGLC compounds show higher negative formation enthalpies compared to single-Ln compositions, but the BLnC series demonstrate better chemical stability under high steam pressures.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Andres Lopez-Garcia, Aitor Dominguez-Saldana, Alfonso J. Carrillo, Laura Navarrete, Maria I. Valls, Beatriz Garcia-Banos, Pedro J. Plaza-Gonzalez, Jose Manuel Catala-Civera, Jose Manuel Serra
Summary: Exsolution has become a promising method for generating metallic nanoparticles, offering better stability and robustness compared to conventional deposition methods. Alternative exsolution methods that do not rely on high-temperature reduction are being explored, such as utilizing electrochemical potentials or plasma technologies. In this study, a method based on pulsed microwave radiation is proposed for driving the exsolution of metallic nanoparticles, enabling high scalability with short exposure times and low temperatures.
Article
Chemistry, Multidisciplinary
J. M. Serra, M. Balaguer, J. Santos-Blasco, J. F. Borras-Morell, B. Garcia-Banos, P. Plaza-Gonzalez, D. Catalan-Martinez, F. Penaranda-Foix, A. Dominguez, L. Navarrete, J. M. Catala-Civera
Summary: This study investigates microwave-induced redox transformations on solid-state ion-conducting materials, and finds that reduction is triggered at a specific temperature leading to a significant increase in electric conductivity. The effectiveness of the redox process is influenced by material composition, gas environment, and microwave power intensity, with fine-grained materials showing amplified effects.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Ragnar Strandbakke, David S. Wragg, Magnus H. Sorby, Matylda N. Guzik, Anette E. Gunnaes, Iga Szpunar, Sebastian Lech Wachowski, Maria Balaguer, Patricia A. Carvalho, Aleksandra Mielewczyk-Gryn, Jose M. Serra, Truls Norby
Summary: BGLC compositions with large compositional ranges of Ba, Gd, and La show significant compositional flexibility and the ability to tune functional properties, as well as anisotropic chemical expansion.
DALTON TRANSACTIONS
(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)
