Article
Engineering, Environmental
Qigang Han, Yalan Sheng, Xu Liu, Xu Zhang, Xinhui Chen, Bo Li, Zhiwu Han
Summary: This study designed and manufactured a highly integrated composite material that can efficiently store energy and withstand mechanical loads for the electric power systems of UAVs. The composite exhibited high specific capacity, large energy density, and long cycle life, while also possessing superior mechanical properties.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Shubham Kaushik, Kazuhiko Matsumoto, Yuki Orikasa, Misaki Katayama, Yasuhiro Inada, Yuta Sato, Kazuma Gotoh, Hideka Ando, Rika Hagiwara
Summary: This study investigates the performance of VP2 as a negative electrode alongside ionic liquids in sodium-ion batteries, revealing improved performance at intermediate temperatures and enhanced rate and cycle performance at 90 degrees C. Electrochemical tests show reduced charge transfer resistance and the formation of a uniform and stable solid electrolyte interface (SEI) layer at 90 degrees C. The conversion-based mechanism forming Na3P after charging is confirmed through X-ray diffraction and nuclear magnetic resonance spectroscopy.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Zhichun Yu, Liuyue Cao, Huabo Liu, Da-Wei Wang
Summary: The study shows that the aqueous Zn/LiCoO2 hybrid battery with mildly alkaline ammonia-containing electrolyte exhibits remarkable cycling stability and excellent rate capability, promising exciting prospects for advanced aqueous zinc-based batteries with high voltage and high energy density.
ENERGY STORAGE MATERIALS
(2021)
Article
Engineering, Multidisciplinary
Wenqi Fan, Rongrong Chu, Cunguo Wang, Hewei Song, Yuyin Ding, Xue Li, Manyi Jiang, Qi Li, Liwei Liu, Aihua He
Summary: A three-dimensional composite carbon material with coaxial cable-like structure was prepared through a hydrothermal method and coated with PTCDA molecules to synthesize a ternary composite with improved performance as a positive electrode material for sodium ion batteries. The enhanced conductivity of the composite material led to better ion transport and adsorption, resulting in significantly improved reversible capacity and cycle life.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Energy & Fuels
Rafael Vicentini, Willian G. Nunes, Lenon H. da Costa, Leonardo M. Da Silva, Bruno Freitas, Aline M. Pascon, Otavio Vilas-Boas, Hudson Zanin
Summary: A novel multi-walled carbon nanotubes and activated carbon composite material was reported as an electrode for electrochemical capacitors, showing low equivalent series resistance and operational stability in aqueous electrolytes. The simple, fast, and low-cost approach resulted in devices with high voltage and specific capacitance, demonstrating good cyclability and potential for environmentally friendly electrolytes.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Daile Zhang, Qiong Chen, Jianghua Zhang, Ting Sun
Summary: The study presents a composite material of MgMn2O4 particles and multi-walled carbon nano-tubes for aqueous magnesium ion batteries, demonstrating high conductivity and good charge-discharge performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Chemical
Ganesan Savithiri, Venkatachalam Priyanka, Rengapillai Subadevi, Bijoy Kumar Das, Marimuthu Sivakumar
Summary: In this study, a novel cathode material was synthesized via ball-milling, utilizing sodium cobalt phosphate and two different carbon structures, graphite and graphene, for Sodium-ion battery. The composite alpha-NaCoPO4/graphene showed higher initial discharge capacity compared to alpha-NaCoPO4/graphite, indicating its potential as a promising cathode for sodium-ion battery applications.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Materials Science, Multidisciplinary
Dan Sun, Rongting Guo, Yiju Lv, Wei Li, Mingjun Lu, Qiumei Wei, Zheng Liu, Guo-Cheng Han
Summary: Na2MnPO4F and Ti3C2-carbon quantum dots (CQDs) nanocomposites were prepared and investigated for their structure and electrochemical performance as a lithium-ion battery cathode material. Ti3C2-CQDs were found to improve the cycle performance, rate performance and capacity retention rate of Na2MnPO4F, demonstrating their significance in enhancing the electrochemical performance of polyanionic compounds.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Energy & Fuels
Rui Yang Hu, Li Yuan Liu, Jia Hao He, Yang Zhou, Shi Bo Wu, Mao Xiang Zheng, Muslum Demir, Pian Pian Ma
Summary: Recent studies have shown that bimetallic carbide, due to its abundant active sites, high conductivity, and electrochemical stability, is a promising electrode material for supercapacitors. By combining bimetallic carbides with other advanced materials such as graphene, porous carbon, or carbon nanotubes (CNTs), the electrochemical properties of the electrode can be greatly enhanced. In this study, Fe3Mo3C/Mo2C@CNTs composite material was synthesized for the first time using hydrothermal and high-temperature carbonization methods. The Fe3Mo3C/Mo2C@CNTs nanoparticles carbonized at 800℃ exhibited the best electrochemical performance, with a specific capacitance of 196.3 F g-1 at a scanning rate of 10 mV s-1 (202.3 F g-1 at 1 A g-1). An asymmetric supercapacitor assembled with Fe3Mo3C/Mo2C@CNTs and NiCo2O4 electrode achieved an energy density of 39.9 Wh Kg-1 at a power density of 1800 W Kg-1, with a capacitance retention rate of 73.9% after 4000 cycles. Overall, Fe3Mo3C/Mo2C@CNTs shows significant potential as a negative electrode material for supercapacitors in the field of electrochemical energy storage.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Nanoscience & Nanotechnology
Jihyun Jang, Jun H. Ku, Seung M. Oh, Taeho Yoon
Summary: This study presents a novel strategy to increase the reversible capacity of electrode materials by altering the lithiation mechanism of transition metal oxides, exemplified by the conversion of MoO2 to CoMoO3. X-ray absorption spectroscopy and X-ray diffraction revealed the amorphization of the host structure due to the conversion of CoO to Co and Li2O. The high initial Coulombic efficiency of CoMoO3 is attributed to the highly conductive Co and MoO2, enhancing electronic conductivity.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Freddy Baltazar Iniguez, Huimin Jeong, Ahmed Yousef Mohamed, Paul Maldonado Nogales, Hwanjun Choi, Soon-Ki Jeong, Jong Bae Park, Yang Soo Kim, Deok-Yong Cho
Summary: We investigated the structural and electrochemical properties of Li-Ti-O (LTO) and CNT-added LTO for anode material in secondary Li-ion batteries. The study focused on elucidating the effects of microstructural evolution in LTO and the addition of CNT on battery functionality. The results showed that the degradation in electrochemical property of LTO is mainly due to an increase in Li content, and the addition of CNT can greatly increase Li capacity while not significantly changing the LTO composition and redox kinetics. This suggests that surface engineering through CNT addition is a promising way to improve the performance of LTO-based anode material.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Physical
Michael J. D'Ambrose, Damon E. Turney, Gautam G. Yadav, Michael Nyce, Sanjoy Banerjee
Summary: The cycling performance and failure mechanisms of zinc alkaline electrodes vary significantly with different zinc utilization rates. Irreversible side reactions and zinc microstructural evolution are identified as the main causes of cell failure.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Energy & Fuels
Ruixin Ma, Xuning Feng, Tianyang Zhao, Wencan Zhang, Min Liu, Weixiong Wu
Summary: This study investigates the use of composite phase change material (PCM) in preventing thermal runaway propagation (TRP) in electrochemical energy storage systems. It is found that two types of composite PCM with high and low thermal conductivity can effectively inhibit TRP.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Materials Science, Multidisciplinary
Alvena Shahid, Zohra Nazir Kayani, Hina Nazli, Saira Riaz, Shahzad Naseem
Summary: Cobalt oxide (Co3O4), cobalt oxide/reduced graphene oxide (Co3O4/rGO), and cobalt oxide/reduced graphene oxide/polyaniline (Co3O4/rGO/PANI) ternary composites with varying PANI concentrations were synthesized. The composites exhibited different structures and excellent optoelectronic and electrochemical properties. Among them, the (Co3O4/rGO)/PANI (60%:40%) ternary composite showed a high capacitance and stability, making it a valuable electrode material for supercapacitors.
Article
Engineering, Electrical & Electronic
Yan An, Jinyuan Qin, Kai Sun, Jiahao Xin, Xiaofeng Li, Xinfeng Wu, Weiguo Zhang, Runhua Fan
Summary: In this study, conductive composites were manufactured by hot pressing with polypropylene (PP) as matrix resin and copper powder as conductive filler. The effects of copper particle radius and content on the dielectric properties of the composites were studied, showing an improvement in dielectric constant with increased copper content, establishing a conductive percolating network within the composites. The study also revealed a constitutive relationship between permittivity and reactance.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Yao Wang, Yukun Liu, Pingge He, Junteng Jin, Xudong Zhao, Qiuyu Shen, Jie Li, Xuanhui Qu, Yongchang Liu, Lifang Jiao
Summary: Researchers successfully enhanced the structural stability and battery performance of sodium-ion battery cathode materials by selectively substituting the chromium element. The newly developed material, Na3.9MnCr0.9Zr0.1(PO4)(3)/C, exhibited a high capacity retention of 85.94% over 500 cycles at high charge rates, and an ultra-high capacity of 156.4 mAh/g at low charge rates, enabling stable energy output as high as 555.2 Wh/kg. This study provides new opportunities for designing high-energy and high-stability NASICON cathodes through ion doping.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hongye Qin, Yukun Ye, Jinhong Li, Wenqi Jia, Siyu Zheng, Xuejie Cao, Guangliang Lin, Lifang Jiao
Summary: Nickel hydroxide has been identified as a promising electrocatalyst for urea oxidation reaction. By doping vanadium and creating oxygen vacancies, the catalyst's activity is enhanced by increasing the number of active sites and lowering the energy barrier for the reaction.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xuchun Chen, Siyu Zheng, Pei Liu, Zhiqin Sun, Kunjie Zhu, Haixia Li, Yongchang Liu, Lifang Jiao
Summary: It is demonstrated that utilizing fluorine to substitute oxygen atoms can enhance the air stability of manganese-based layered oxide cathode materials, thereby prolonging their lifespan in air.
Article
Chemistry, Physical
Qiuyu Shen, Yongchang Liu, Xudong Zhao, Junteng Jin, Xiaobai Song, Yao Wang, Xuanhui Qu, Lifang Jiao
Summary: Initiating anionic redox chemistry in layered sodium oxide cathodes is a prevalent method to break the capacity limit set by traditional transition metal redox. This study uncovers a Mn activation mechanism in a novel P2-Na0.80Li0.08Ni0.22Mn0.67O2 cathode, which achieves high discharge capacity and long cycling life by triggering anionic redox and reducing Mn through oxygen loss. The work elucidates the charge compensation mechanism and expands the horizons of oxygen redox chemistry for high-performance layered oxide cathode materials in sodium-ion batteries.
ADVANCED ENERGY MATERIALS
(2023)
Review
Electrochemistry
Zelin Wang, Chunwen Sun, Liang Lu, Lifang Jiao
Summary: Solid state Na-CO2 batteries are a promising energy storage system that utilizes excess CO2 for electrochemical energy storage. Despite their high theoretical energy densities, the practical application of Na-CO2 battery technology faces challenges such as short cycle life, high charging potential, poor rate performance, and lower specific full discharge capacity.
Article
Chemistry, Multidisciplinary
Xiayan Jian, Qiuyu Shen, Xudong Zhao, Junteng Jin, Yao Wang, Shengwei Li, Xuanhui Qu, Lifang Jiao, Yongchang Liu
Summary: This study reports a new type of ultrathin VOPO4 nanosheets as cathodes for sodium-ion batteries, achieving higher capacity and rate performance through redox reactions and ClO4- insertion/extraction. The mechanism of anionic redox reactions is elucidated, opening up a new avenue for high-energy phosphate cathodes for SIBs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhaopeng Li, Hongye Qin, Wenyue Tian, Licheng Miao, Kangzhe Cao, Yuchang Si, Haixia Li, Qinglun Wang, Lifang Jiao
Summary: A flexible 3D hollow porous carbon nanofiber framework embedded with Sb nanoparticles (Sb@HPCNF) is reported to enhance the safety and stability of sodium metal batteries (SMBs). The framework enables highly reversible Na plating-stripping cycles for over 550 hours at 5 mA cm(-2) and exhibits excellent high-rate performance. This study provides new insights for constructing functionalized 3D composite frameworks for next-generation high-safety and high-energy SMBs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Junteng Jin, Yongchang Liu, Xudong Zhao, Hui Liu, Shiqing Deng, Qiuyu Shen, Ying Hou, He Qi, Xianran Xing, Lifang Jiao, Jun Chen
Summary: Annealing in argon is a universal strategy to upgrade the Na-storage performance of Mn-based oxide cathodes by introducing bulk oxygen vacancies, reducing Mn valence, lowering Mn 3d-orbital energy level, and forming new-concept Mn domains. This method increases the energy density and promotes cycling stability, providing a new avenue towards high-performance Mn-based oxide cathodes for sodium-ion batteries.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Tongzhou Wang, Licheng Miao, Siyu Zheng, Hongye Qin, Xuejie Cao, Lei Yang, Lifang Jiao
Summary: This study demonstrates a simple synthesis of the Ni3N/Mo2N heterostructure and investigates urea-assisted electrolytic hydrogen production. The adsorption behavior of the urea molecule is analyzed, showing that -NH2 groups preferentially adsorb on Ni3N while C=O groups preferentially adsorb on Mo2N. The Ni3N/Mo2N heterostructure optimizes urea adsorption and enhances the hydrogen evolution reaction, leading to significantly lower voltage requirements and a 7 times higher hydrogen production rate in the urea-assisted water electrolyzer.
Article
Chemistry, Physical
Tianhao Wang, Shengwei Li, Xinger Weng, Lei Gao, Yu Yan, Ning Zhang, Xuanhui Qu, Lifang Jiao, Yongchang Liu
Summary: In this study, hierarchically porous V2O5 nanosheets vertically grown on carbon cloth were prepared, providing additional ion-diffusion channels and abundant active sites. The V2O5/C electrode exhibited exceptional high-rate capability and ultralong cycling durability in rechargeable aqueous zinc-based batteries. Moreover, the quasi-solid-state wearable zinc batteries employing the porous V2O5/C cathode demonstrated respectable performance even under severe deformations and low temperatures.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Pei Liu, Tiantian Zhan, Xuchun Chen, Haixia Li, Qinglun Wang, Wenbo Lu, Lifang Jiao
Summary: O3-type layered oxides have great potential as cathode materials for sodium-ion batteries, but their practical applications are hindered by structural instability and irreversible phase transitions. This study demonstrates a feasible strategy to construct stabilized O3-type layered oxides by doping with a transition metal ion (Zn2+), which improves capacity retention and lifespan, offering a promising approach for high-performance sodium-ion batteries.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Yao Wang, Xudong Zhao, Junteng Jin, Qiuyu Shen, Yang Hu, Xiaobai Song, Han Li, Xuanhui Qu, Lifang Jiao, Yongchang Liu
Summary: This study unravels the reductive coupling mechanism (RCM) in a novel P2-Na0.8Cu0.22Li0.08Mn0.67O2 cathode, which boosts the reversibility and kinetics of anionic redox reactions. The formation of strong covalent Cu-(O-O) bonding effectively suppresses excessive oxygen oxidation and irreversible cation migration, resulting in a cathode with remarkable rate capability and long-term cycling stability.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Tao Zhang, Ji Kong, Chao Shen, Shengjie Cui, Zezhou Lin, Yuyu Deng, Minghao Song, Lifang Jiao, Haitao Huang, Ting Jin, Keyu Xie
Summary: This study introduces acetic acid in layered cathode materials to form sodium acetate and successfully achieves efficient sodium compensation. Based on sodium compensation, the capacity retention and energy density of the battery have been significantly improved.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Physical
Han Li, Yao Wang, Xudong Zhao, Junteng Jin, Qiuyu Shen, Jie Li, Yukun Liu, Xuanhui Qu, Lifang Jiao, Yongchang Liu
Summary: Natriumsuperionic conductor (NASICON)-type phosphates with 3D open frameworks have attracted attention as cathodes for sodium-ion batteries. However, they suffer from mediocre energy density and rapid capacity decay. In this study, a multielectron reaction and low-strain Na(3.5)Fe(0.5)V-Cr-0.5(PO4)(3)/C cathode material was designed, which exhibited high working voltage, high reversible capacity, and high cycling stability.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Physical
Tongzhou Wang, Licheng Miao, Siyu Zheng, Hongye Qin, Xuejie Cao, Lei Yang, Lifang Jiao
Summary: In this study, a simple synthesis of Ni3N/Mo2N heterostructure was reported, and urea-assisted electrolytic hydrogen production was systematically investigated. It was found that the -NH2 and C=O groups of the urea molecule were more easily adsorbed on Ni3N and Mo2N, respectively. The Ni3N/Mo2N heterostructure optimized the adsorption of urea and improved the hydrogen evolution reaction performance, leading to a much lower voltage (1.36 V @ 10 mA cm-2) and a 7 times higher hydrogen production rate in the urea-assisted water electrolyzer.
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)