Article
Materials Science, Ceramics
Liya Cheng, Qiuqiu Lyu, Zongxun Li, Yang Liu, Chao Jin, Na Xu, Qin Zhong, Tenglong Zhu
Summary: Modifying the thin film electrolyte improves the performance, reliability, and durability of solid oxide fuel cells (SOFCs).
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Chemistry, Physical
Jeong Woo Shin, Seongkook Oh, Sungje Lee, Dohyun Go, Joonsuk Park, Hyong June Kim, Byung Chan Yang, Gu Young Cho, Jihwan An
Summary: Surface modification of electrodes is crucial for improving the performance of low-temperature solid oxide fuel cells. The ALD CeO2-coated Pt anode structure showed a significant improvement in anode kinetics, leading to a decrease in activation resistance and an increase in maximum power density.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Electrochemistry
Dalton M. Cox, Scott A. Barnett
Summary: A life testing method is described that can simultaneously test multiple cells under different conditions, providing information on electrolysis and fuel cell operation, while sampling and evaluating the microstructure. SEM-based imaging techniques show pronounced microstructural damage that increases rapidly with increasing current density and time, mirroring observed electrochemical degradation.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Thermodynamics
Abdullah A. AlZahrani, Ibrahim Dincer
Summary: Solid oxide electrolysis is an efficient and sustainable method for hydrogen production from water, but the high operating temperature poses a challenge due to increased degradation rate. This study investigates the performance and microstructure of a novel thin-electrolyte solid oxide cell under high steam to hydrogen ratios.
Article
Chemistry, Physical
Hao Ding, Xue Guo, Jiao Li, Qiangqiang Hu, Haibin Sun, Zanzhong Yang, Guochang Li, Fangyong Yu, Chengfeng Li, Yishang Wang
Summary: Bi-doped BiSDC-BCSBi composites exhibit excellent sinterability and electrical performance, making them suitable for intermediate-temperature solid oxide fuel cells. The high conductivity and peak power density suggest promising applications in the field.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Xian Pan, Gurong Lin, Kaiping Peng
Summary: Perovskite-type Sr11Mo4O23 material undergoes a phase transition around 400 degrees C, resulting in a drop in conductivity. In this study, a novel Sr10.8A0.2Mo3.5Ta0.5O23-delta electrolyte is synthesized with doping of Ta and alkali metals (Li, Na, K). The doping inhibits the phase transition and enhances the electrical conductivity of Sr11Mo4O23. Among the samples, Sr10.8K0.2Mo3.5Ta0.5O23-delta shows the highest conductivity and exhibits good stability under different atmospheres. Single cells with Sr10.8K0.2Mo3.5Ta0.5O23-delta electrolyte show improved power density compared to cells with Sr11Mo4O23 electrolyte, suggesting its potential for IT-SOFCs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Madison Olson, Jacob Wheaton, Mary Okkema, Nicholas Oldham, Steve W. Martin
Summary: Na4P2S7-6xO4.62xN0.92x (NaPSON) glassy solid electrolytes (GSEs) were studied for their electrochemical properties and processability into thin films. The x = 0.2 composition (NaPSON-2) showed high conductivity, non-crystallizability, stability against Na-metal, and support for symmetric cell cycling. Thin films of NaPSON-2 exhibited unchanged conductivity and slow growth in resistance, while NaPSON-2 disc displayed stability and reaction products in the bulk. The surface stability was attributed to the segregation of trigonally coordinated nitrogen.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Andrey Solovyev, Anna Shipilova, Egor Smolyanskiy, Sergey Rabotkin, Vyacheslav Semenov
Summary: This study compares the performance of anode-supported SOFCs using YSZ electrolyte and GDC electrolyte thin films. The results show that at high temperatures, the power density and OCV of SOFCs with GDC electrolyte thin film are comparable to those with YSZ electrolyte.
Article
Chemistry, Physical
Myung Seok Lee, Sanghoon Lee, Wonyeop Jeong, Sangbong Ryu, Wonjong Yu, Yoon Ho Lee, Gu Young Cho, Suk Won Cha
Summary: This study fabricated TF-SOFCs with optimized anode-substrate nanostructure for low-temperature operation, and characterized the six combinations of fuel cells to identify the best performance. EIS analysis indicated that the optimized ohmic and faradaic resistance originated from each part of the unique TF-SOFC structure.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Materials Science, Ceramics
Anjana P. Anantharaman, Hari Prasad Dasari
Summary: Pyrochlore structure materials have unique crystal structure, electrical properties, and thermal stability, making them widely applicable in catalysis, nuclear waste encapsulation, sensors, and electronic devices. The ionic/electronic conductivity of these materials is crucial for their performance in solid oxide fuel cells, where factors like cation radius ratio, oxygen migration, vacancy formation, and dopant addition play significant roles in enhancing the conductivity. Research has shown that controlling these factors can improve the ion and electron transport properties of pyrochlore materials, ultimately leading to better performance in various applications.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Atif Khan Niaz, Young Je Kim, Anil V. Virkar, Jun-Young Park, Hyung-Tae Lim
Summary: A bilayer composite electrolyte is designed to improve the stability of co-ionic conducting solid oxide fuel cells (SOFCs) in a cell imbalanced stack. Local electronic conduction is identified as a crucial factor for the durability of co-ionic SOFCs under negative voltage operation. The bilayer configuration is suggested as a practical solution to protect the cells in a cell-imbalanced stack.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Jiaqi Geng, Zhenjun Jiao, Dong Yan, Lichao Jia, Jian Pu, Jian Li
Summary: The evolution of solid oxide fuel cell anode microstructure during operation, including Ni migration and Ostwald ripening, has been found to affect pore structure, concentration polarization, and ultimately electrochemical performance. This impact was revealed through evaluations with various microscopy techniques and electrochemical tests such as Electrochemical Impedance Spectrum and Distribution of Relaxation Time analysis.
JOURNAL OF POWER SOURCES
(2021)
Article
Green & Sustainable Science & Technology
Sanghoon Ji, Weonjae Kim, Sangjong Han, Seokhun Jeong, Taehyun Park
Summary: The power performance of solid oxide fuel cell (SOFC) with a 200 nm-thick, nanoporous Ni thin-film anode was studied during the dry reformate and wet reformate operations at 500 degrees C. It was found that the initial power density of the SOFC fueled with dry reformate was slightly lower than that fueled with pure hydrogen, but similar to that fueled with wet reformate. The power density reduction rate was higher for the SOFC fueled with dry reformate, while the wet reformate alleviated carbon poisoning of the Ni thin-film anode and reduced the power density reduction rate.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2023)
Article
Electrochemistry
Alexander Kube, Jens Meyer, Dennis Kopljar, Norbert Wagner, Kaspar Andreas Friedrich
Summary: The study compared the use of transimpedance amplifier and instrumental amplifier circuits to measure current densities of a zinc-air battery, finding the transimpedance amplifier to be superior, but both methods provided valuable and consistent results. The results showed that understanding current distributions is crucial for preventing battery material degradation and irreversible capacity loss.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Green & Sustainable Science & Technology
Suriya Venkatesan, Jens Mitzel, Karsten Wegner, Remi Costa, Pawel Gazdzicki, Kaspar Andreas Friedrich
Summary: The limited scalability and multi-step processing of the conventional synthesis routes for electrocatalysts, their supports and thin functional films remain a challenge in the inexpensive production of energy materials and cells. Flame spray pyrolysis (FSP) offers a solution by providing a simple, rapid, scalable and single-step fabrication technique.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Chemistry, Physical
Fabian Grimm, Norbert H. Menzler, Olivier Guillon
JOURNAL OF POWER SOURCES
(2020)
Article
Chemistry, Physical
Fabian Grimm, Michael Neubert, Juergen Karl, Norbert H. Menzler, Olivier Guillon
JOURNAL OF POWER SOURCES
(2020)
Article
Materials Science, Ceramics
S. Harboe, Y. J. Sohn, O. Guillon, N. H. Menzler
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2020)
Review
Energy & Fuels
David Udomsilp, Christian Lenser, Olivier Guillon, Norbert H. Menzler
Summary: Solid oxide cell (SOC) technology is rapidly developing and will play an important role in carbon-neutral power supply, with advantages in decentralized power generation and distribution.
Article
Electrochemistry
Qingping Fang, Norbert H. Menzler, Ludger Blum
Summary: It has been found that the LSC cathode shows more promising results in SOFCs compared to the LSCF cathode, with higher ionic conductivity and better resistance to chromium poisoning. Through long-term stack operation and various analyses, the degradation behavior of the stack due to chromium poisoning can be evaluated.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Materials Science, Ceramics
Jun Zhang, Christian Lenser, Niklas Russner, Andre Weber, Norbert H. Menzler, Olivier Guillon
Summary: This article reports on the fabrication of a cost-effective anode-supported solid oxide fuel cell (SOFC) using gadolinia-doped ceria (GDC) as the electrolyte. The results show that the cell exhibits low ohmic resistance and high power density at intermediate temperature, indicating its great potential for commercial applications.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Xiaoyan Yin, Robert Spatschek, Norbert H. Menzler, Claas Hueter
Summary: This study utilizes a transfer learning approach to predict the oxygen vacancy formation energy by training models with similar feature spaces. The predictive models are successfully transferred from a two-species-doped system to a four-species-doped system, and their transferability is validated through statistical analysis. This approach is of great significance for the search for novel energy materials.
Review
Chemistry, Physical
Stephan Sarner, Andrea Schreiber, Norbert H. Menzler, Olivier Guillon
Summary: This paper discusses potential recycling routes for solid oxide fuel cell (SOC) stack components, with emphasis on ceramic fractions. The economic and environmental potentials of recycling are evaluated, demonstrating significant advantages offered by recycling.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Maria Balaguer, Yoo Jung Sohn, Dietmar Kobertz, Sergey Kasatikov, Andrea Fantin, Michael Mueller, Norbert H. Menzler, Olivier Guillon, Mariya E. Ivanova
Summary: Innovations in materials science are crucial for addressing technological challenges, requiring the design of materials with tailored properties. This study developed ceramic materials in the BaZr0.8Y0.2-xMnxO3-delta series, finding that thermal expansion and hydration decrease, and total electrical conductivity reduces with increasing Mn content. XPS analysis and NEXAFS indicated varying oxidation states of Mn atoms depending on ambient conditions, suggesting a hydration mechanism mediated by Mn oxidation and proton attachment to oxygen neighbors.
SOLID STATE IONICS
(2022)
Article
Energy & Fuels
Moritz L. Weber, Moritz Kindelmann, Egbert Wessel, Alexandros Sarantopoulos, Norbert H. Menzler, Regina Dittmann, Rainer Waser, Olivier Guillon, Christian Lenser, Felix Gunkel
Summary: Metal exsolution is a dynamic process driven by reducing atmosphere and elevated temperatures, which leads to the self-assembly of nanoparticles at the surface of complex perovskite catalysts. The characteristics of metal exsolution catalysts can be highly inhomogeneous, and the anisotropic surface properties of ceramic oxides have been found to significantly affect the exsolution behavior.
JOURNAL OF PHYSICS-ENERGY
(2023)
Review
Chemistry, Multidisciplinary
Mariya E. Ivanova, Ralf Peters, Martin Mueller, Stefan Haas, Martin Florian Seidler, Gerd Mutschke, Kerstin Eckert, Philipp Roese, Sonya Calnan, Rory Bagacki, Rutger Schlatmann, Cedric Grosselindemann, Laura-Alena Schaefer, Norbert H. Menzler, Andre Weber, Roel van de Krol, Feng Liang, Fatwa F. Abdi, Stefan Brendelberger, Nicole Neumann, Johannes Grobbel, Martin Roeb, Christian Sattler, Ines Duran, Benjamin Dietrich, M. E. Christoph Hofberger, Leonid Stoppel, Neele Uhlenbruck, Thomas Wetzel, David Rauner, Ante Hecimovic, Ursel Fantz, Nadiia Kulyk, Jens Harting, Olivier Guillon
Summary: Hydrogen produced from renewables will have a growing impact on global energy dynamics towards sustainability and carbon neutrality. However, the current share of green hydrogen is too low, and there is a rising demand for high-quality hydrogen. This highlights the need for economically viable hydrogen generation technologies. This article evaluates existing technologies for high-quality hydrogen production based on solar energy, considering their current development level, technical limitations, and future potential.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Benjamin Koenigshofer, Michael Hoeber, Norbert H. Menzler, Hartmuth Schroettner, Christoph Hochenauer, Vanja Subotic
Summary: High temperature solid oxide electrolysis cells (SOEC) provide a unique solution for converting steam and electricity into hydrogen, with the ability to produce syngas by adding CO2. However, specific operating conditions can negatively affect the performance and lifespan of SOECs. This study focuses on experimental investigations of steam-electrode supported SOECs with segmented air electrodes, aiming to identify locally-resolved impedance and degradation characteristics caused by different operating conditions in steam and co-electrolysis mode using EIS, DRT, and SEM.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Vanja Subotic, Norbert H. Menzler, Vincent Lawlor, Qingping Fang, Stefan Pofahl, Philipp Harter, Hartmuth Schroettner, Christoph Hochenauer
Article
Chemistry, Multidisciplinary
David Udomsilp, Juergen Rechberger, Raphael Neubauer, Cornelia Bischof, Florian Thaler, Wolfgang Schafbauer, Norbert H. Menzler, Lambertus G. J. de Haart, Andreas Nenning, Alexander K. Opitz, Olivier Guillon, Martin Bram
CELL REPORTS PHYSICAL SCIENCE
(2020)
Article
Electrochemistry
Qianli Ma, Sebastian Dierickx, Vaibhav Vibhu, Doris Sebold, Lambertus G. J. de Haart, Andre Weber, Olivier Guillon, Norbert H. Menzler
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
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)
