Article
Chemistry, Physical
Jerren Grimes, Junsung Hong, Scott A. Barnett
Summary: Infiltration of gadolinium doped ceria (GDC) has been shown to significantly improve the performance and stability of solid oxide electrolysis cells. It reduces the initial cell resistance and limits degradation, resulting in enhanced cell stability. The infiltrated GDC nanoparticles mitigate Ni particle coarsening in the Ni-YSZ electrode, further contributing to improved cell performance.
JOURNAL OF POWER SOURCES
(2022)
Article
Energy & Fuels
Junsung Hong, Jerren Grimes, Dalton Cox, Scott A. Barnett
Summary: Reversible solid oxide cells can switch between electrical generation and electricity storage, but there is limited research on this mode-switching operation. This study provides electrochemical and post-test characterization of a 10 cm x 10 cm cell after a long-term life test, showing gradual performance decrease, gas crossover failure, and electrode delamination.
Article
Chemistry, Physical
Changkun Cai, Manyi Xie, Ke Xue, Yu Shi, Shuting Li, Yuanyuan Liu, Shengli An, Hong Yang
Summary: This study successfully synthesized Ba2+-doped LBSCF materials and found that compared to undoped LSCF, Ba2+-doped LBSCF exhibits higher electrical conductivity and lower polarization resistance at 500-800 degrees Celsius, leading to a higher maximum power density for IT-SOFC technology.
Article
Thermodynamics
Muiz Adekunle Agbaje, Ali Volkan Akkaya
Summary: This study examines the electrochemical, energy, and exergy performances of a Reversible Solid Oxide Cell (ReSOC) based stand-alone energy storage system. The system demonstrates a roundtrip efficiency of 51% and identifies the main points of energy loss/destruction. The results suggest that optimizing the system operation modes can improve its efficiency.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Electrochemistry
Caterina Sanna, Enrico Squizzato, Paola Costamagna, Peter Holtappels, Antonella Glisenti
Summary: This study investigates the application of La0.6Sr0.4MnO3 (LSM) as an anode in direct methane intermediate temperature solid oxide fuel cells (IT-SOFCs). Composite electrodes with different configurations are prepared and tested in air and direct methane conditions. It is found that LSM exhibits reversible modification of the crystal structure in methane, and the presence of CGO in the composite electrode contributes to its stability in reducing conditions.
ELECTROCHIMICA ACTA
(2022)
Article
Electrochemistry
Ping Li, Fei Liu, Beibei Yang, Wei Wei, Xinyu Ma, Fei Yan, Tian Gan, Dong Fu
Summary: Reversible solid oxide cells (RSOCs) are considered promising due to their high conversion efficiency. In this study, La0.6Sr0.4Co0.2Fe0.7M0.1O3 (M=Fe, Mo, Nb) oxides were prepared and combined with Sm0.2Ce0.8O2-(Li0.67Na0.33)2CO3 to form reversible single component cells (RSCCs). La0.6Sr0.4Co0.2Fe0.7Mo0.1O3 (LSCFM) exhibited the highest oxygen vacancy concentration and improved catalytic activity for oxygen reduction and hydrogen oxidation reactions. Mo or Nb doping also enhanced the surface reaction rate constant and oxygen chemical bulk diffusion coefficient. The RSCC composed of LSCFM showed the best cell performance, with a maximum power density of 236.2 mW cm-2 in fuel cell mode and a current density of -312.4 mA cm-2 at 1.3 V in electrolysis cell mode.
ELECTROCHIMICA ACTA
(2023)
Article
Thermodynamics
Guoqiang Liu, Wei Zhao, Zexin Li, Zhiping Xia, Chang Jiang, Jakub Kupecki, Shui Pang, Zhonghua Deng, Xi Li
Summary: A dynamic model of a reversible solid oxide cell system was developed in this study, and the influence of different operating parameters on temperature distribution was investigated. The results showed that adjusting the air excess ratio and fuel utilization had minimal effects on the local temperature gradient, while the maximum PEN temperature was mainly affected by the air excess ratio.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Chemistry, Physical
Weilin Zhang, Yucun Zhou, Enzuo Liu, Yong Ding, Zheyu Luo, Tongtong Li, Nicholas Kane, Bote Zhao, Yinghua Niu, Ying Liu, Meilin Liu
Summary: This study introduces a novel bifunctional air electrode material, PrBa0.9Co1.96Nb0.04O5+delta, that demonstrates outstanding electrochemical performance and excellent stability due to improved stability from Nb doping and enhanced electrocatalytic activity from tuning Ba deficiency.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Lu Zou, Yunfeng Tian, Jian Pu, Bo Chi
Summary: This study demonstrates the fabrication of novel Pr0.9Ag0.1B0.5Sr0.5Co2O5+delta nanofibers with enhanced electrocatalytic activities for reversible solid oxide cells, improving their performance in low-temperature operation. The cells with the nanofibers air electrode exhibit decreased polarization resistance, increased electrolysis current density, and adequate power density at 700 degrees C, showing exceptional reversibility and stability. The enhancement is attributed to in-situ exsolution of Ag nanoparticles and better interface combination between the air electrode and electrolyte.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Analytical
Xu Zhang, Yanting Tian, Zhongquan Nie, Xueying Wu, Yuan Li, Lili Ding
Summary: The oxygen electrode based on the misfit-layered structure of Ca3Co4O9+delta (CCO) material showed superior electrocatalytic activity and long-term stability for reversible solid oxide cells (RSOCs).
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Yufan Zhang, Ahrum Sohn, Anirban Chakraborty, Choongho Yu
Summary: This study introduces a new approach utilizing thermo-hydro-electrochemical effects to generate a large thermal-to-electric energy conversion factor. The findings could potentially lead to more efficient thermoelectric energy conversion and utilization of dissipated thermal energy.
NATURE COMMUNICATIONS
(2021)
Article
Energy & Fuels
Timothy D. Hutty, Siyuan Dong, Rachel Lee, Solomon Brown
Summary: Reversible solid oxide cells (rSOCs) offer efficient long-term bulk energy storage using hydrogen or methane fuel, with potential applications in solar-powered residential microgrids. Compared to battery energy storage (BESS), rSOCs show superior efficiency, but selecting between the two technologies depends on factors like grid independence requirements and PV capacity constraints. Overall, the economics of such systems remain challenging, with optimization playing a key role in component selection.
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
Chemistry, Multidisciplinary
Yang Liu, Yun Gong
Summary: S*-doped (C8H9NO2)(0.18)V2O5 (DA-VO) was synthesized by a one-step hydrothermal reaction. Rietveld refinement confirmed the intercalation of DA into V2O5, resulting in a large interlayer spacing. The S-doped DA-VO exhibited a unique hollow microtube structure, high specific capacity, and excellent cycling durability, attributed to the intercalation of DA and the defects induced by S-doping.
Article
Chemistry, Physical
Hyun Sik Yoo, Seo Ju Kim, Yonas Tsegaye Megra, Jongseo Lee, Ji Won Suk, Wonyoung Lee
Summary: This study investigates the correlation between the structural properties at the interface between the cathode and electrolyte and the electrochemical performance in intermediate-temperature solid oxide fuel cells (IT-SOFCs). The findings suggest that maximizing contact coverage enhances the performance of IT-SOFCs.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
C. H. Wendel, P. Kazempoor, R. J. Braun
JOURNAL OF POWER SOURCES
(2015)
Article
Energy & Fuels
Christopher H. Wendel, Robert J. Braun
Article
Energy & Fuels
Kevin J. Albrecht, Gregory S. Jackson, Robert J. Braun
Article
Chemistry, Physical
Christopher H. Wendel, Pejman Kazempoor, Robert J. Braun
JOURNAL OF POWER SOURCES
(2016)
Article
Chemistry, Physical
Kevin J. Albrecht, Robert J. Braun
JOURNAL OF POWER SOURCES
(2016)
Article
Chemistry, Physical
Kevin J. Albrecht, Robert J. Braun
JOURNAL OF POWER SOURCES
(2016)
Article
Thermodynamics
Gladys A. Anyenya, Neal P. Sullivan, Robert J. Braun
ENERGY CONVERSION AND MANAGEMENT
(2017)
Article
Chemistry, Physical
Alexis Dubois, Sandrine Ricote, Robert J. Braun
JOURNAL OF POWER SOURCES
(2017)
Article
Chemistry, Multidisciplinary
David Humbird, Anna Trendewicz, Robert Braun, Abhijit Dutta
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2017)
Article
Electrochemistry
Gladys Anyenya, Buddy Haun, Mark Daubenspeck, Robert Braun, Neal P. Sullivan
JOURNAL OF ELECTROCHEMICAL ENERGY CONVERSION AND STORAGE
(2016)
Proceedings Paper
Electrochemistry
E. Reznicek, R. J. Braun
SOLID OXIDE FUEL CELLS 15 (SOFC-XV)
(2017)
Proceedings Paper
Electrochemistry
A. Dubois, S. Ricote, R. J. Braun
SOLID OXIDE FUEL CELLS 15 (SOFC-XV)
(2017)
Article
Energy & Fuels
Michael J. Wagner, Alexandra M. Newman, William T. Hamilton, Robert J. Braun
Proceedings Paper
Electrochemistry
L. Imponenti, K. J. Albrecht, R. J. Braun, G. S. Jackson
IONIC AND MIXED CONDUCTING CERAMICS 10
(2016)
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)