Article
Energy & Fuels
Nor Anisa Arifin, Abd Halim Shamsuddin, Robert Steinberger-Wilckens
Summary: This study evaluates the influence of carbon deposition on the performance of Ni/YSZ and Ni/ScSZ solid oxide fuel cells operating in simulated biogas. The results show that carbon deposition affects performance, with Ni/ScSZ cells having higher carbon content but better performance than Ni/YSZ cells.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Materials Science, Ceramics
Junmeng Jing, Ze Lei, Ziho Wu, Zhongxu Wang, Haorui Yu, Zhibin Yang, Suping Peng
Summary: This study investigates the oxygen vacancy engineering on cobalt-free Ba0.95La0.05FeO3-delta (BLF) by nickel substitution, which promotes the generation of oxygen vacancies and enhances catalytic activity, leading to improved electrochemical performance of proton-conducting solid oxide fuel cells (H+-SOFCs).
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Nanoscience & Nanotechnology
Sangbong Ryu, Jaewon Hwang, Wonyeop Jeong, Wonjong Yu, Sanghoon Lee, Kyunghyun Kim, Chunhua Zheng, Yoon Ho Lee, Suk Won Cha
Summary: In this study, a Gd-Ce metal alloy was used instead of GDC to balance the sputtering rate of Ni and GDC, and successfully transformed into crystallized GDC under a SOFC operation environment. The optimum Ni-GDC ratio for thin-film SOFCs was clarified by depositing films with various power ratios on ScSZ electrolyte pellets. The Ni-GDC was then applied to AAO-supported SOFCs to maximize performance, with the best performance of 638 mW/cm2 at 500 degrees C.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Nianjun Hou, Juanjuan Gan, Qisheng Yan, Yicheng Zhao, Yongdan Li
Summary: The study demonstrates that fluorine doping on the perovskite La0.5Ba0.5FeO3-δ anode material can accelerate oxygen surface exchange steps and improve the power density of solid oxide fuel cells, enhancing short-term stability.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Fengli Liang, Po-hung Tseng, Qiang Sun, Mengran Li, Wei Zhou, Lian X. Liu, Hao Wang, Zhonghua Zhu
Summary: This study presents a novel method to assemble SrCo0.4Fe0.5W0.1O3-δ cathode directly onto YSZ electrolyte using a highly efficient microwave plasma technique, achieving intimate contact and notably high ORR performance. The method is also effective in assembling other MIEC perovskite cathodes, enhancing cathode performance significantly.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Xueyu Hu, Yun Xie, Yanhong Wan, Yi Yang, Xiaojun Wu, Changrong Xia
Summary: Replacing part of cobalt with antimony in SrCoO3-delta improves CO2 tolerance and performance. Experimental and computational results confirm weakened CO2 adsorption strength, while obtaining outstanding oxygen transport and reduction reaction activity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Multidisciplinary
Hongxia Gu, Meigui Xu, Yufei Song, Chuan Zhou, Chao Su, Wei Wang, Ran Ran, Wei Zhou, Zongping Shao
Summary: A new perovskite SrCo0.8Ti0.1Ta0.1O3-delta (SCTT) with high electrical conductivities, appropriate oxygen vacancy concentrations, and high bulk diffusion capability has been developed, showing favorable oxygen reduction reaction (ORR) activity at intermediate temperatures. The SCTT material exhibits high peak power density and durability in solid oxide fuel cells and protonic ceramic fuel cells, potentially accelerating the commercialization of IT-SOFC technology.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Chemistry, Physical
Shuai Wu, Yinhua Liu, Chao Wang, Hailu Dai, Xianfen Wang, Lei Bi
Summary: The performance of LaNi0.5Fe0.5O3-delta material for H-SOFCs has been improved through a Zn-doping strategy, resulting in higher peak power density and lower polarization resistance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Seona Kim, Guntae Kim, Arumugam Manthiram
Summary: Recent study on atmospheric adaptive materials that can change crystal structure based on environment, using Dy doping strategy can significantly improve the performance of solid oxide cells, especially 10% Dy doped Pr0.5Ba0.5MnO3-delta shows the best catalytic and electrochemical properties among various doping amounts.
JOURNAL OF POWER SOURCES
(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
Materials Science, Ceramics
Zeyu Jiang, Abigail L. Snowdon, Abubakr Siddiq, Ahmad El-kharouf, Robert Steinberger-Wilckens
Summary: This study investigated cost-effective wet ceramic coating techniques for fabricating bi-layer electrolyte anode-supported button cells. Aqueous ceramic slurries were prepared and used for cell fabrication. The results showed that the spin coated GDC film exhibited high power density and good stability.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Chaohang Liu, Feng Wang, Yue Ni, Shun Wang, Bin Qian, Qing Ni, Yifeng Zheng, Han Chen, Lin Ge
Summary: In this study, Ta-substituted PBF materials were prepared and evaluated as symmetrical electrodes on a GDC-YSZ-GDC three-layer electrolyte. The results showed that the strategy of Ta doping can improve the electrochemical performance of PBF, and PBFT0.2 is a potential electrode material for S-SOFCs.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Nanoscience & Nanotechnology
Feifei Dong, Zhan Lin, Zilin Ma, Lu Li, Qirui Ye, Biaokui Dongyang, Wenying Yang
Summary: In this study, a new perovskite-based BaFeO3-delta (BF) matrix, Ba0.75Sr0.25Fe0.875Y0.125O3-delta (BSFY), is proposed as a highly active cathode for IT-SOFCs. The BSFY electrode exhibits a significantly lower area-specific resistance and higher peak power density compared to the BF counterpart, and demonstrates resistance against CO2 contaminants.
ACS APPLIED MATERIALS & INTERFACES
(2022)
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
Chemistry, Physical
Fuhuan Wang, Yucan Liu, Jiakun Sun, Hewu Wang, Dongsheng Ren, Languang Lu, Pengfei Yan, Youpeng Chen, Haoran Hu, Minggao Ouyang
Summary: An impregnation approach is proposed in this study to enhance the electrochemical performance of the nanocomposite Ni-GDC anode by modulating oxygen vacancies and Ni dispersion. This method achieves well-dispersed Ni nanoparticles and adequate oxygen vacancies in the NiO-GDC anode, resulting in excellent performance for SOFCs.
ACS APPLIED ENERGY MATERIALS
(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)