Article
Chemistry, Physical
Jihao Zhang, Huding Guo, Libin Lei, Shuanglin Shen, Keqing Zheng, Minfang Han
Summary: A practical segmented cell measurement method is developed to detect fuel starvation in solid oxide fuel cells (SOFCs) at local regions. By segmenting the cathode and only measuring the voltage signal, the local current-voltage (I-V) curve per segment is determined. The area specific resistance (ASR) is calculated and compared among segments to validate the data reliability. Fuel starvation is estimated using the rapid voltage drop in I-V curves and the rapid ASR increment in I-ASR curves, with the ASR increment being a more sensitive criterion.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Feihong Wang, Xi Xu, Yunpeng Xia, Binbin Dong, Nianwang Ke, Luyuan Hao, Lei Bi, Xin Xu, Wei Liu
Summary: Doping with Ta can effectively reduce the thermal expansion coefficient of BSCF cathode, enhance the compatibility with the electrolyte, and improve the power density and stability of solid oxide fuel cells.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Chemistry, Multidisciplinary
Ayesha Samreen, Muhammad Sudais Ali, Muhammad Huzaifa, Nasir Ali, Bilal Hassan, Fazl Ullah, Shahid Ali, Nor Anisa Arifin
Summary: High-temperature solid oxide fuel cells (SOFCs) are an efficient and environmentally friendly technology for electricity generation using hydrogen-based fuel. This research focuses on the development of cathode materials for low/intermediate temperature SOFCs, addressing challenges such as structural stability, catalytic activity, and tolerance against contaminants. The study highlights strategies like surface modification and composites to improve the electrocatalytic activity of LSM/LSCF-based electrode materials, and provides insight into the performance of double perovskite oxides and Ruddlesden-Popper phase materials as cathodes for SOFCs.
Article
Chemistry, Physical
Miaomiao Guo, Qiang Li, Juntao Gao, Liping Sun, Lihua Huo, Hui Zhao
Summary: The Fe-based perovskite oxide BSFM was evaluated as a novel cathode electrocatalyst for SOFCs, showing outstanding electrode activity for the oxygen reduction reaction and promising potential for fuel cell applications. The BSFM cathode exhibited low polarization resistance and high current density, indicating its capability as a prospective cathode electrocatalyst for SOFCs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Electrochemistry
Zhiheng Li, Mengran Li, Zhonghua Zhu
Summary: Acceleration of the oxygen reduction reaction at the cathode is crucial for low-temperature solid oxide fuel cells. Understanding the interactions between surface and bulk of the cathode materials is important for electrode kinetics and overall efficacy. Future research directions include investigating the role of oxygen vacancy, rational modulation of surface-bulk interactions, and the use of advanced fabrication techniques.
ELECTROCHEMICAL ENERGY REVIEWS
(2022)
Article
Materials Science, Ceramics
Yufu Yang, Xianglin Liu, Pengcheng Wang, Yuankui Teng, Xueying Chu, Jinhua Li, Fangjun Jin
Summary: Double perovskite oxides, prepared by A-site calcium co-doping strategy, exhibit good chemical compatibility and electrochemical properties while greatly reducing thermal expansion coefficient, making them promising materials for intermediate-temperature solid oxide fuel cells (IT-SOFCs).
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Shibo Wang, Jingsheng Xu, Ming Wu, Zhaoyuan Song, Li Wang, Leilei Zhang, Jian Yang, Wen Long, Lei Zhang
Summary: Investigations were conducted on cobalt-free BaFe0.9Nb0.1O3-delta (BFNb) as a cathode material for intermediate-temperature solid oxide fuel cell (IT-SOFC). Results show the co-existence of at least cubic and tetragonal phases in the BFNb sintered at 1000 or 1100 degrees C, with high electrical conductivity and stability in the intermediate-temperature range.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Xiaowei Liu, Fangjun Jin, Ning Sun, Jiangxin Li, Yu Shen, Fang Wang, Jinhua Li
Summary: The study prepared NBC95+B composite cathode materials by introducing Nd defect with bismuth oxide, which effectively increased conductivity and reduced thermal expansion coefficient, showing good electrochemical performance.
CERAMICS INTERNATIONAL
(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
Materials Science, Multidisciplinary
Qingjun Zhou, Yajie Wang, Xin Yang, Fanxing Bu, Feiran Yang, Mingchao Wang, Yan li
Summary: In this study, In-doped swedenborgite oxide materials were prepared and thoroughly investigated for their phase structure, electrical conductivity, thermal expansion coefficient, thermal stability, and electrochemical properties. The partial substitution of In for Y and Ca had minimal effect on the properties of the materials. The samples showed excellent tolerance to CO2 at high temperatures and the YCI0.2BCZ composition exhibited low resistance and high power density, making it a promising cathode material for IT-SOFCs.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Chemistry, Physical
Mingchao Su, Daoming Huan, Xueyu Hu, Kang Zhu, Ranran Peng, Changrong Xia
Summary: The study demonstrates that Ca-doped LaCoO3-delta and LaCoO3-delta oxides can effectively overcome CO2 poisoning issues, showing high electrical conductivity and thermal compatibility. Compared to LCCo, LCFe exhibits better CO2 tolerance and higher electrochemical performance.
JOURNAL OF POWER SOURCES
(2022)
Article
Nanoscience & Nanotechnology
Yunjie Gou, Guangdong Li, Rongzheng Ren, Chunming Xu, Jinshuo Qiao, Wang Sun, Kening Sun, Zhenhua Wang
Summary: This study demonstrates an effective optimized strategy for designing high-performance cathodes by doping Pr into BaFeO3-delta perovskites, enhancing electrochemical activity and CO2 resistance. The appropriate content of Pr substitution increases the oxygen vacancy concentration, promotes reactions on the oxygen electrode, and shows excellent electrochemical performance.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Kyeong Eun Song, Sung Hun Woo, Seung Wook Baek, Hyunil Kang, Won Seok Choi, Jun Young Park, Jung Hyun Kim
Summary: In the SmBa1-xCaxCo2O5+d oxide systems, different compositions exhibited various electrical conductivity and metal-insulator transition behaviors. Among them, SBCCO-0.8 showed the highest electrical conductivity, while SBCCO-0.9 demonstrated excellent ASR characteristic at high temperature. The crystal structures of SBCCO were identified as orthorhombic, with unique X-ray diffraction peaks.
FRONTIERS IN CHEMISTRY
(2021)
Article
Chemistry, Physical
Xi Xu, Yangsen Xu, Jinming Ma, Yanru Yin, Marco Fronzi, Xianfen Wang, Lei Bi
Summary: The study demonstrates that tailoring the electronic structure of perovskite oxide with Mo-doping leads to improvements in cathode materials for proton-conducting solid oxide fuel cells. The Mo-doping changes the electronic structure of the oxide, making the metal-oxygen bond less strong and the surface more active towards oxygen reduction, resulting in more feasible oxygen vacancy formation critical for protonation. The electric field induced by Mo-doping provides an additional driving force for proton movement, accelerating proton migration in the oxide and improving cathode performance.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Shoucheng He, Lanqing Zhang, Jiantao Cai, Xingyu Wu, Hanxi Sun, Tao Du
Summary: LBCMx cathodes synthesized by a sol-gel method showed improved conductivity and thermal expansion coefficient, and significantly increased the maximum power density of a single cell in the intermediate-temperature solid oxide fuel cells.
Article
Materials Science, Multidisciplinary
Qingrong Lv, Shoujin Zhu, Xingli Zhao, Xiansong Liu, Shuangjiu Feng, Xucai Kan, Yang Yujie, Yuan Cheng
Summary: A composite material with a nominal composition of Ni0.6Fe2.4O4 was prepared by the solid-phase reaction method. The product is composed of alpha-Fe2O3 and a solid solution of Fe3O4 and NiFe2O4. The magnetic permeability of the composite material is highly stable in terms of temperature and frequency, attributed to the presence of the alpha-Fe2O3 phase.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Yujie Yang, Congliang Chen, Dongyang Chen, Yingming Zhang, Yuting Meng, Cong Zhang, Shuangjiu Feng
Summary: The solid-state reaction method was used to synthesize a series of W-type hexagonal ferrites, and it was observed that the magnetic properties improved with increasing Co content, but started to weaken after a certain point.
Review
Engineering, Electrical & Electronic
Xingli Zhao, Qingrong Lv, Xucai Kan, Xiansong Liu, Shuangjiu Feng
Summary: This paper investigates the microstructure and magnetic properties of FeSiCr/SrFe12O19 composites with different concentrations of SrFe12O19 ferrite. The study found that small SrFe12O19 ferrite particles were uniformly attached to the surface of FeSiCr particles, effectively blocking current between different metallic particles. The magnetic properties of the composites were analyzed in detail, showing that the permeability decreased with increasing SrFe12O19 concentration, while core loss initially decreased and then increased. The composites with 4 wt.% SrFe12O19 exhibited the best electromagnetic properties.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Longlong Shan, Shuangjiu Feng, Xiansong Liu, Xucai Kan
Summary: In this paper, a series of Zn1-xInxNNi3 samples were synthesized and their magnetic and superconducting properties were studied. Chemical phase separation was observed at low In content, while a uniform ferromagnetic solid solution was formed at high In content.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Ceramics
Yujia Liu, Weiqi Liu, Yue Li, Shuangjiu Feng, Zhitao Zhang, Xucai Kan, Xiansong Liu
Summary: In this study, Gd2FeMnO6 (GFMO) double perovskites are successfully prepared using the solid-state reaction method. X-ray diffraction results reveal an orthogonal structure (space group Pnma) for GFMO. X-ray photoelectron spectroscopy results indicate mixed-valence states of 3d transition ions. Thermomagnetic data analysis suggests the presence of canted antiferromagnetism, spin reorientation, and a Griffiths phase with an antiferromagnetic ground state caused by ferromagnetic short-range interactions.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Yong Zhu, Cong Zhang, Xiansong Liu, Xucai Kan, Shuangjiu Feng, Qingrong Lv, Wei Sun
Summary: In this study, Fe-Si-B magnetic powder cores coated with Al2O3 or phosphoric acid-alumina composite coating were prepared to study the magnetic loss in electronic devices. The effects of nano-Al2O3 powders and phosphoric acid with different contents on the magnetic properties were investigated. The results showed that a coating of 0.8 wt% phosphoric acid and 0.2 wt% Al2O3 achieved excellent magnetic properties with a particle size ratio of 2:6:2.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
S. J. Zhu, K. Huang, S. J. Feng, X. S. Liu, X. C. Kan
Summary: FeNi/SrFe12O19 (FeNi/SrM) composites were prepared by ball milling, and the effects of SrM content on microwave absorption properties and magnetism were studied. SEM results showed that SrM was broken into fine crumb-like and granular particles during ball milling and adhered to the surface of the iron-nickel alloy. The addition of SrM significantly enhanced the absorbing performance of the FeNi/SrM composite due to increased coercivity, reduced dielectric constant and eddy current loss, and enhanced effects of exchange resonance and natural resonance.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Physics, Multidisciplinary
Shuang-Jiu Feng, Xin-Li Zhao, Shou-Jin Zhu, Qing-Rong Lv, Xu-Cai Kan, Xian-Song Liu
Summary: A soft magnetic ferrite toroid can be magnetized to saturation in transverse direction by applying a sufficiently large transverse magnetic field and almost completely suppresses magnetic domain structures in it. The response to the longitudinal alternating electromagnetic field changes from domain wall displacements and spin rotations to magnetization precession around the transverse field, and the hysteresis loss disappears. Both theoretical and experimental results show that the permeability and magnetic loss in the ferrite can be controlled by adjusting the transverse magnetic field. Increasing the transverse field can achieve a higher Q value with relatively low permeability, ensuring low magnetic loss at high frequencies.
Article
Materials Science, Multidisciplinary
Cong Zhang, Yanan Chen, Shuangjiu Feng, Xucai Kan, Yong Zhu, Yue Li, Wei Sun, Jibiao Shen, Xiansong Liu
Summary: In this study, FeSiAl magnetic powder was mixed with carbonyl iron powder (CIP) coated with nano-SiO2 and pressed into toroidal magnetic core with silicon resin as adhesive. The SMCs obtained showed excellent power loss, saturation magnetization and permeability for MHz frequency. The addition of CIP improved the permeability, DC-bias properties and core density of the magnetic powder cores.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Weiqi Liu, Xucai Kan, Shuangjiu Feng, Qingrong Lv, Yujia Liu, Cong Zhang, Yue Li, Xiansong Liu
Summary: Significant negative magnetization was observed in La2FeCrO6 and Nd2FeCrO6 samples synthesized by the sol-gel method. The mechanism of negative magnetization differs in the two samples. The competition between DM interactions and single-ion magnetic anisotropy leads to negative magnetization in La2FeCrO6, while the different temperature dependence of the Nd3+ ions triggers the negative magnetization in Nd2FeCrO6.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Cong Zhang, Xiansong Liu, Shuangjiu Feng, Xucai Kan, Yujie Yang, Yong Zhu, Zongyang Zhang
Summary: This study prepared soft magnetic composites by mixing nanocrystalline flaky powder with carbonyl iron powder (CIP). The molding orientation of the flaky powder and the protection of the insulating layer were improved with the increase of ultrafine CIP content. The saturation magnetization (M-s) of the composites increased regularly, while the coercivity changed little. The DSC curve of Fe73.5Si13.5B9Nb3Cu1 amorphous powder showed that the forming temperature of nanocrystalline was between 540 degrees C and 640 degrees C. After annealing at 555 degrees C, pure nanocrystalline alpha-Fe(Si) was formed. Ring-shaped magnetic cores were prepared and tested for their soft magnetic properties, and the values of permeability and power loss were significantly optimized when CIP and nanocrystalline powder were mixed. The magnetic properties were further improved after annealing at different temperatures, and the evolutions of permeability and power loss were analyzed.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Inorganic & Nuclear
Cong Zhang, Shuangjiu Feng, Xucai Kan, Yong Zhu, Zongyang Zhang, Yue Li, Haiming Tian, Wei Sun, Xiansong Liu
Summary: In this study, Al3+ ion substituted M-type Sr0.7La0.3Fe11.75.x-AlxCo0.25O19 (0 < x < 0.12) hexagonal ferrites were synthesized by solid state reaction. The lattice parameters a and c decreased with the increasing Al3+ content, and a single M-type strontium ferrite was obtained within the Al content range of 0 to 0.08. Scanning electron microscopy images showed hexagonal platelet-like particles, and the size of the magnetic powders was about 2-5 μm. The saturation magnetization (M-s) of the hexaferrite decreased with the increase of x from 0 to 0.12, while coercivity (H-c) of the magnetic powders increased with Al3+ content (x) from 0 to 0.12.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Yong Zhu, Cong Zhang, Xiansong Liu, Xucai Kan, Shuangjiu Feng, Qingrong Lv
Summary: This study investigates the magnetic properties of Fe-Si-B amorphous soft magnetic powder cores passivated by phosphoric acid. The effects of phosphoric acid content and annealing temperature at different frequencies on the permeability and magnetic loss of the cores are also studied. The results from electron microscope pictures and B-H analyzer show that the surface of the cores is coated with a dense phosphate layer. Experimental results demonstrate that the Fe-Si-B cores with the best comprehensive magnetic properties (μe = 23.71, Pcv = 470.6 mW·cm³ measured at 1000 kHz, 20 mT) can be obtained by adding 0.8 wt% phosphoric acid at an annealing temperature of 480 degrees C.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Physics, Applied
Qingrong Lv, Shoujin Zhu, Shuangjiu Feng, Xiansong Liu, Xucai Kan, Yang Yujie
Summary: This study investigated the AC magnetic parameters of softened BaTi1.2Co1.2Fe8.6O19-sigma samples and analyzed the impact of different magnetic induction intensities on the quality factor, hysteresis loop area, and shape. The findings were explained semi-quantitatively and verified through fitting and experimental measurements.
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2023)
Article
Physics, Multidisciplinary
Shuangjiu Feng, Jiangli Ni, Feng Hu, Xucai Kan, Qingrong Lv, Xiansong Liu
Summary: Magnetized SrFe12O19 particles can reduce the magnetic loss of FeSi/SrFe12O19 composites with minimal impact on permeability. The reduction in hysteresis loss is mainly due to the decrease in domain wall displacement caused by the increase in average magnetic domain size.
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)
