Article
Chemistry, Physical
Dan Zheng, Xiaomi Zhou, Zili He, Hongdong Cai, Chen Xia, Xunying Wang, Wenjing Dong, Hao Wang, Baoyuan Wang
Summary: This study explores the potential of LiNi-oxide as both electrolyte and symmetrical electrode in solid oxide fuel cells and finds that introducing LiNi-oxide does not have a negative impact on cell performance. On the contrary, it significantly improves the performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Hua Tong, Wenjing Hu, Min Fu, Chunli Yang, Zetian Tao
Summary: Nickel-doped barium ferrate with triple conducting ability is developed as cathodes for proton-conducting solid oxide fuel cells (H-SOFCs), showing impressive electrochemical performance at intermediate temperatures. The high electrocatalytic capacity of the nickel-doped barium ferrate cathode is attributed to its significant proton conductivity, which is enhanced by the presence of nickel and the regulated composition and structure of the composite cathode.
Article
Chemistry, Physical
Wenjie Yang, Huizhu Zhou, Ling Wang, Yuehua Li, Zhangxing He, Chao Han, Lei Dai
Summary: Perovskite proton conductors BaxZr0.6Hf0.2Y0.2O3-delta were successfully prepared by high temperature solid state method. Ba excess was found to enhance the sinterability and conductivity of the samples.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Ceramics
Lele Wang, Yueyuan Gu, Hailu Dai, Yanru Yin, Lei Bi
Summary: BaSrInFeO5 (BSIF) is a new cathode material designed for proton-conducting solid oxide fuel cells (SOFCs) by modifying the Ba2In2O5 proton conductor with Sr and Fe cations. Sr doping improves the chemical stability, formation of oxygen vacancies, and proton mobility of the material. Experimental studies and first-principles calculations demonstrate that an H-SOFC using the BSIF cathode achieves a high peak power density of 1192 mW cm-2 at 700 oC, surpassing previous reports. This study suggests that derived cathode materials from less-studied Ba2In2O5 could offer new material selections for H-SOFCs.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Qifei Zhang, Yunting Hou, Li Chen, Lijun Wang, Kuochih Chou
Summary: The study found that adding GDC material in anode-supported H-SOFC can increase oxygen vacancy concentration and three-phase reaction interface to improve oxygen adsorption and dissociation rate at low temperatures, thereby enhancing cell performance and stability.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Yufeng Li, Shoufu Yu, Hailu Dai, Yangsen Xu, Lei Bi
Summary: In this study, Sr-doped LaMnO3 (LSM) is coated with TiO2 to create the LSM + TiO2 cathode. It is found that TiO2 modifies the electronic structure at the LSM/TiO2 interface, allowing for charge accumulation and enhanced oxygen diffusion ability. Using LSM + TiO2 as a cathode for proton-conducting SOFCs operating at intermediate temperatures, the fuel cell demonstrates enhanced cell output performance and achieves the highest reported value for H-SOFCs with LSM cathodes.
SCIENCE CHINA-MATERIALS
(2023)
Article
Materials Science, Ceramics
Rui Zhou, Yueyuan Gu, Hailu Dai, Yangsen Xu, Lei Bi
Summary: By synthesizing nominal PrxSr0.5MnO3-d materials, new Pr0.5Sr0.5MnO3-d (PSM50)+ PrO2_(x) composite cathodes for proton-conducting solid oxide fuel cells (SOFCs) were developed. The exsolution of PrO2_(x) particles was observed, increasing with the amount of Pr in PrxSr0.5MnO3-d. A Pr0.7Sr0.5MnO3-d (PSM70) cathode enabled the highest fuel cell output reported for H-SOFCs with manganate cathodes. The construction of a PSM50/PrO2 heterostructure interface accelerated the cathode oxygen reduction reaction (ORR) kinetics and demonstrated excellent electrochemical performance and chemical stability.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Yangsen Xu, Shoufu Yu, Yanru Yin, Lei Bi
Summary: LiCoO2, a material widely used in Li-ion batteries, was found to be suitable as a cathode material for H-SOFCs. The evaporation of Li in LiCoO2 led to the in-situ formation of a LiCoO2+Co3O4 composite, which greatly enhanced the performance of the cathode in H-SOFCs. The formation of Co3O4 due to Li-evaporation decreased the formation energy of oxygen vacancies, resulting in improved cathode performance.
JOURNAL OF ADVANCED CERAMICS
(2022)
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
Zhizhong Leng, Zuzhi Huang, Xu Zhou, Bo Zhang, Hu Bai, Juan Zhou, Shaorong Wang
Summary: Proton-conducting solid oxide electrolysis cells (H-SOECs) using BZCYYb as the electrolyte material have unique advantages. This study investigates the effects of adding different sintering aids (NiO, CuO, ZnO) to BZCYYb on grain size and conductivity. The results show that adding 1 wt% of NiO and CuO sintering aids improves the density and conductivity of BZCYYb. The conductivity increases with steam concentration in most atmospheres, while in oxygen atmosphere with steam at high temperature, the conductivity initially decreases slightly and then increases. CuO is found to have advantages in promoting hydration reaction and proton conduction of BZCYYb electrolyte compared to NiO.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Zhaoyu Zhong, Xiaoqian Xu, Zhenhao Zhang, Jiao Li, Xue Guo, Shigang Wu, Haibin Sun
Summary: This study successfully fabricated dense BZCYYb electrolytes at low temperatures using microwave sintering technique, effectively suppressing barium evaporation and promoting grain growth, leading to improved electrical conductivity. The microwave-sintered BZCYYb electrolyte exhibited excellent conductivity at 700 degrees C, indicating its potential application in SOFCs.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Materials Science, Ceramics
Xuan Yang, Yangsen Xu, Shoufu Yu, Lei Bi
Summary: A new spinel oxide CFLO has been synthesized and used as a cathode material for proton-conducting solid oxide fuel cells. The doping of Li significantly regulates the electronic structure and creates more oxygen vacancies, improving the cathode performance. The CFLO cathode shows superior performance and long-term stability in various testing temperatures, making it a promising material for H-SOFCs.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Yanru Yin, Yanbin Zhou, Yueyuan Gu, Lei Bi
Summary: In this study, a pure phase BaCo0.5Fe0.5O3-delta (BCF) was successfully prepared for the first time using a calcination method with rapid cooling. The BCF material was evaluated as a cathode for proton-conducting solid oxide fuel cells (H-SOFCs), and it achieved a fuel cell performance of 2012 mW.cm(-2) at 700 degrees C, which is double that of a similar cell using the classical Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) cathode. The improved performance of the BCF cathode was attributed to the lower energy barriers in the oxygen reduction reaction (ORR) compared to the BSCF cathode. The fuel cell using the BCF cathode also exhibited excellent long-term stability, working stably for nearly 900 hours without noticeable degradation. This research suggests that BCF is a promising cathode material for H-SOFCs.
JOURNAL OF ADVANCED CERAMICS
(2023)
Article
Nanoscience & Nanotechnology
Chen Huang, Liwen Huang, Wen-Feng Lin, Yan Wu
Summary: Beta-Al2O3, modified by LiAlO2, was used as the electrolyte material for low-temperature solid oxide fuel cells and electrolyzers, achieving high power density and current density due to its remarkable conductivity. The introduction of LiAlO2 phase into beta-Al2O3 reduces impedance and increases oxygen vacancy concentration, promoting proton transport process. This work provides a new approach for exploring high-ionic conductivity two-dimensional materials for various power-to-X devices.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Sara Paydar, Kuno Kooser, Priit Moller, Olga Volobujeva, Sari Granroth, Enn Lust, Gunnar Nurk
Summary: Development of active ceramic hydrogen electrodes with high stability is crucial for the advancement of solid oxide fuel cells (SOFC). In this study, a series of cubic perovskite-type La/Ca/Fe-doped strontium titanates (LSCTF) were synthesized and evaluated for their crystallographic and electrical properties, catalytic activity, stability, and performance as fuel electrodes in SOFC. The results showed that LSCTF materials behave like semiconductors, and the conductivity, catalytic activity, and stability of the electrodes are significantly influenced by the Ca concentration in the A-site. The optimal composition of La0.2Sr0.35Ca0.35Ti0.95Fe0.05O3-delta fuel electrode exhibited a low polarization resistance value and the fuel cell with a 50 wt % La0.2Sr0.35Ca0.35Ti0.95Fe0.05O3-delta + 50 wt % Ce0.9Gd0.1O2-delta anode demonstrated high power density.
ACS APPLIED ENERGY MATERIALS
(2022)
Review
Engineering, Chemical
Qilong Zheng, Yidan Zhang, Chao Su, Ling Zhao, Youmin Guo
Summary: This article summarizes the research progress of perovskite-based oxides on the applications of rechargeable Zn-air batteries (ZABs), and introduces the methods to increase their oxygen reduction reaction and oxygen evolution reaction activity. Perovskite-based oxides have outstanding properties and are a promising bifunctional electrocatalyst.
ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Electrochemistry
Guohong Pan, Yanzhu Deng, Ling Zhao, Huanwen Wang, Rui Wang, Jun Jin, Yansheng Gong, Beibei He
Summary: This study focuses on the improvement of oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in rechargeable zinc-air batteries. A novel bifunctional catalyst, RP-PSNC/P-PNC, is proposed, which exhibits small overpotential and excellent stability. The catalyst shows outstanding performance in rechargeable zinc-air batteries, indicating its great potential for energy conversion devices.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Inorganic & Nuclear
Daxiang Gui, Yugang Zhang, Hui Li, Jie Shu, Lanhua Chen, Ling Zhao, Juan Diwu, Zhifang Chai, Shuao Wang
Summary: This study proposes a unique method to achieve stable and efficient anhydrous proton conductivity in a stable uranyl-based coordination polymer, providing new insights for practical electrolytes in intermediate-temperature proton exchange membrane fuel cells.
INORGANIC CHEMISTRY
(2022)
Article
Engineering, Chemical
Yin Xu, Yonglong Huang, Youmin Guo, Feng Hu, Jianmei Xu, Wei Zhou, Zhihong Yang, Jian Sun, Beibei He, Ling Zhao
Summary: This study highlights a novel anion defect engineered perovskite oxyfluoride as a potential cathode material for protonic ceramic fuel cells (PCFCs), demonstrating improved oxygen reduction kinetics and water incorporation kinetics. This material shows high electrocatalytic performance, delivering a higher peak power density compared to traditional cathode materials.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Jing Zhang, Yu Ye, Zhenbin Wang, Yin Xu, Liangqi Gui, Beibei He, Ling Zhao
Summary: This study demonstrates the self-reconstruction of newly designed Ni-Fe coupled perovskite fluorides during the oxygen evolution reaction (OER). Experimental and theoretical results reveal that Fe incorporation can activate the self-reconstruction of perovskite fluorides and lower the energy barrier of OER. The resulting electrocatalyst exhibits excellent performance in energy conversion efficiency and durability, rivaling most state-of-the-art OER electrocatalysts.
Article
Chemistry, Physical
Yonglong Huang, Yuzhou Liu, Yanzhu Deng, Jing Zhang, Beibei He, Jian Sun, Zhihong Yang, Wei Zhou, Ling Zhao
Summary: This study proposes a novel air electrode using oxygen vacancies-rich CeO2 decorated CoSe2 nanocubes as a catalyst to drive oxygen evolution and reduction reactions in rechargeable Zn-air batteries. The CeO2 coupled CoSe2 nanocubes catalyst exhibits enhanced bifunctional activity, and the assembled Zn-air battery using this electrode shows high power density and long-life stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Chemical
Jian Zhou, Tong Liu, Jing Zhang, Ling Zhao, Wei He, Yao Wang
Summary: Efficient and stable bifunctional oxygen electrocatalysts are crucial for the research and development of rechargeable zinc-air batteries. In this study, ultrafine cobalt-free perovskite type oxide nanofibers and nanoparticles were prepared and studied for their electrochemical behaviors in the field of zinc-air batteries. The results showed that the nanofiber catalyst exhibited better electrocatalytic activities and more durable stability compared to the nanoparticle catalyst.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Xiaojun Shi, Juwei Du, Lichao Jia, Yansheng Gong, Jun Jin, Huanwen Wang, Rui Wang, Ling Zhao, Beibei He
Summary: A MnCo-based metal organic framework-derived heterogeneous MnS-CoS nanocrystals anchored on free-standing porous N-doped carbon fibers (PNCFs) by the in situ growth method and vulcanization process exhibit remarkable oxygen electrocatalytic activity and stability. The flexible rechargeable Zn-air battery using this composite as binder-free air cathode offers high power density and large specific capacity, and adapts to different bending degrees of operation.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Liangqi Gui, Xiaojun Shi, Nai Shi, Jing Zhang, Beibei He, Jianmei Xu, Ling Zhao
Summary: In this study, a facile strategy of anion engineering was proposed to improve the bifunctionality of layered LiCoO2 (LCO) for Zn-air batteries (ZABs). Partial substitution of fluorine for oxygen induced oxygen vacancies and modulated the electronic structure of Co, thereby accelerating oxygen electrocatalysis kinetics. The potential gap (Delta E) between the OER potential and ORR potential of LiCoO1.8F0.2 (LCOF0.2) catalyst (0.986 V) was significantly lower than that of pristine LCO catalyst (1.162 V), indicating a higher bifunctional activity. The ZABs using LCOF0.2 as the air electrode exhibited a peak power density of 193 mW cm-2, which was 1.53-fold higher than that of the LCO-based ZABs. This study demonstrates the feasibility of F doping to improve the bifunctional electrocatalytic performance of LiCoO2.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Analytical
Miaomiao Kong, Haojie Li, Yu Liang, Kang Cheng, Xin Zhou, Xiaojie Song, Zhihong Yang, Jianmei Xu, Ling Zhao
Summary: A smart actuator with multi-response behaviors was designed using low-cost materials and facile fabricating method. The bilayer actuators prepared with montmorillonite, graphene oxide, and their derivatives showed controlled and large deformation. The bilayer films exhibited good actuating performance under the external stimuli of humidity, organic solvent, and infrared light.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Nanoscience & Nanotechnology
Chen Wang, Yan Zhu, Yihan Ling, Yansheng Gong, Rui Wang, Huanwen Wang, Jun Jin, Ling Zhao, Beibei He
Summary: Solid oxide electrolysis cells (SOECs) have great potential for CO2 reduction reactions (CO2RR), but their practicality is limited by slow kinetics and durability. A novel medium-entropy perovskite, Sr-2(Fe(1.0)Ti(0.25)Cr(0.25)Mn(0.2)5Mo(0.25))O6-delta (SFTCMM), is proposed as a potential electrode material for symmetrical SOECs, which shows improved performance in CO2RR kinetics and stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Shuangyin Gao, Yi Huang, Jin Tan, Jianmei Xu, Ling Zhao, Wei Zhou, Zhihong Yang, Jian Sun, Hao Gong
Summary: In this study, highly transparent p-type amorphous Cu-HHTP films were synthesized using electrostatic spinning method and applied as materials for photodetectors. These amorphous films exhibited ultra-high response speed and sensitivity, and maintained stable performance even at high temperatures. Furthermore, a flexible metal-semiconductor-metal photodetector based on p-a-Cu-HHTP was developed, showing excellent mechanical stability and photoresponse, making it suitable for wearable optoelectronics.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Feng Hu, Yihan Ling, Siyu Fang, Longtao Sui, Huangwei Xiao, Yonglong Huang, Sijiao Wang, Beibei He, Ling Zhao
Summary: This study proposes a novel approach for efficiently converting carbon dioxide into valuable products using solid oxide electrolysis cells (SOEC). Dual-exsolution is used to create metallic nickel nanoparticles on self-assembled cathodes, leading to high current density and favorable durability. The results demonstrate the potential of this method for commercial applications in high-temperature CO2 electrolysis.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2023)
Article
Chemistry, Physical
Jing Zhang, Yu Ye, Bo Wei, Feng Hu, Longtao Sui, Huangwei Xiao, Liangqi Gui, Jian Sun, Beibei He, Ling Zhao
Summary: The activation of surface reconstruction on perovskite oxide through anion defect engineering, such as the incorporation of fluorine, can greatly enhance the catalytic activity for oxygen evolution reaction (OER).
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Multidisciplinary
Feng Hu, Kongfa Chen, Yihan Ling, Yonglong Huang, Sunce Zhao, Sijiao Wang, Liangqi Gui, Beibei He, Ling Zhao
Summary: This study develops a novel dual-exsolved self-assembled anode for CH4-fueled solid oxide fuel cells (SOFCs). The anode exhibits a unique hierarchical structure and achieves high peak power densities and excellent stability.
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)