Article
Chemistry, Physical
Jiayi Zhang, Xiliang Gong, Xin Li, Fanda Zeng, Zeyu Hao, Zhengyan Du, Jian Xu, Zeshuo Meng, Beihong Long, Shansheng Yu, Hongwei Tian
Summary: By employing the rapid redox reaction of concentrated H2SO4 and sucrose, the perfect carbon lattice can be destroyed to form defects and insert large numbers of heteroatoms, rapidly forming electron-ion conjugated sites of carbon materials. CS-800-2 exhibited excellent electrochemical performance and high energy density due to the constructed electron-ion conjugated sites on the super-large surface of carbon-based materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Energy & Fuels
Prem Sagar Shukla, Anant Agrawal, Anurag Gaur, G. D. Varma
Summary: This study investigates the effect of Zn doping on the electrochemical properties of MnCo2O4 (MCO). The results show that Zn doping significantly improves the electrode's BET surface area and mesoporous distribution, leading to enhanced electrochemical characteristics. The constructed ASC device demonstrates excellent performance in terms of energy density, power density, and cycle stability.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Guoxian Chen, Zhiwei Hu, Huiqiang Su, Jie Zhang, Dewei Wang
Summary: A versatile coordination chemistry strategy has been developed to produce B, N co-doped carbon nanosheets with an ultrahigh doping level. The as-obtained nanosheets exhibit a high specific capacity and good stability when used as the cathode for aqueous Zn-ion hybrid capacitors. Detailed changes of the N and B containing functional groups during the charge-discharge process have been evaluated, providing new insights into the roles of heteroatoms containing functional groups for electrochemical energy storage applications.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Energy & Fuels
Juvencio Vazquez-Samperio, Prospero Acevedo-Pena, Ariel Guzman-Vargas, Edilso Reguera, Elcy Cordoba-Tuta
Summary: The study introduces a binder-free 3D reticulated carbon doped with N, F, and B as an excellent choice for volumetric supercapacitor electrodes, showing that the RVC-N electrode exhibits the best performance with high volumetric capacitances, and the symmetric supercapacitor assembled with RVC-N displays good stability with 80% retention of initial capacitance after 10,000 cycles.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Jianhua Yu, Xu Li, Zhenxing Cui, Di Chen, Xiancai Pang, Qian Zhang, Feifei Shao, Hongzhou Dong, Liyan Yu, Lifeng Dong
Summary: The hydrothermal process effectively stabilizes heteroatoms (N and P), improves graphitization, and enhances the capacitive properties of biomass-derived carbon materials.
Article
Chemistry, Physical
Xunlong Zhang, Guilong Yan, Han Li, Zhenyu Li, Jingyu Chen, Li Wang, Yuanpeng Wu
Summary: Flexible electrode materials, such as carbon-based nanofiber, have gained significant attention for their flexibility, safety, and reliability. In this study, nitrogen-boron co-doped hollow porous carbon nanofiber (HPCNF) membranes were fabricated as flexible supercapacitor electrodes using a novel and simple method. The HPCNF exhibited a high specific surface area (413.98 m2/g) and the co-doping of N and B resulted in a high specific capacitance (200.2 F/g at 0.1 A/g). Even after 3000 cycles, the NB-HPCNF maintained a high capacitance retention (104.81%). This research provides a new approach for electrochemical energy storage, contributing to the development of portable flexible devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Xiaowei Wang, Chao Yang, Jun Li, Xi'an Chen, Keqin Yang, Xiaochun Yu, Dajie Lin, Qingcheng Zhang, Shun Wang, Jichang Wang, Zhenhai Xia, Huile Jin
Summary: This study designed a nitrogen, phosphorus, and sulfur tri-doped carbon material with large porosity and rich heteroatom doping, showing excellent bifunctionality in supercapacitors and oxygen reduction reaction. The research demonstrated that co-doping and tri-doping can generate more active sites on neighboring carbon atoms, enhancing the material's bifunctionality.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Liping Feng, Mingju Wang, Yunzhen Chang, Hua Song, Wenjing Hou, Ying Zhang, Yaoming Xiao, Sheng Zhu, Gaoyi Han
Summary: A facile strategy of polymerization-pyrolysis was reported to construct hierarchical nitrogen-doped porous carbon with rich surface nitrogen species. The hierarchical carbon exhibits a large specific surface area and multi-scale porous structures, leading to high specific capacitance and desirable supercapacitor performance.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Kajal Samdhyan, Prakash Chand, Hardeep Anand
Summary: This study reports a facile hydrothermal method for effective phosphorus doping in copper sulphides, which modifies the physicochemical characteristics of transition metal sulfides. The synthesized P-CuS exhibits hexagonal topology and high specific capacitance. An asymmetric supercapacitor device utilizing P doped copper sulfide as a positive electrode achieves high energy density and power density, with good sustainability over cycles. This research provides insights into the development of electrode materials for future energy storage devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Biochemistry & Molecular Biology
Lihong Chen, Yifan Bi, Yunqi Jing, Jun Dai, Zhenjiang Li, Changlong Sun, Alan Meng, Haijiao Xie, Minmin Hu
Summary: Heteroatom doping, such as phosphorus (P) doping, combined with heat treatment is used to modify Ti3C2Tx MXene, resulting in enhanced electrochemical performance. The intercalated ions from NaH2PO2 expand the interlayer space of MXene, facilitating electrolyte ion diffusion, while P doping optimizes electronic conductivity and reduces the free energy of H+ diffusion. Heat treatment replaces -F terminations with O-containing groups, improving hydrophilicity and providing sufficient active sites. The modified electrode exhibits a specific capacitance of 510 F g(-1) and a capacitance retention of 90.2% after 10,000 cycles, demonstrating the effectiveness of the coordinated strategy for high-capacitance Ti3C2Tx MXene electrodes.
Review
Materials Science, Multidisciplinary
Md Tanvir Uddin Malik, Aditya Sarker, S. M. Sultan Mahmud Rahat, Sanzeeda Baig Shuchi
Summary: The rapid development of graphene-based supercapacitors has reached a point where there is a need for devices with definite adaptability, which will be a fundamental benefit in innovative electronic devices. Graphene, with its unique properties such as wide surface area and high conductivity, is considered a potential candidate for usage as a building material for superconductors. Different materials are being tested to ensure suitable properties, and researchers are comparing processes to determine the most suitable way to achieve the best electrochemical performance.
MATERIALS TODAY COMMUNICATIONS
(2021)
Review
Chemistry, Multidisciplinary
Joyce B. Matsoso, Catherine Journet, Neil J. Coville, Zdenek Sofer
Summary: Graphene, an important 2D material, has been widely used in various applications due to its remarkable properties. Through intentional doping with boron and nitrogen, graphene derivatives with new and improved properties can be produced. However, the application of B/N co-doped graphene nanomaterials in renewable energy conversion and storage technology lacks research data.
Article
Green & Sustainable Science & Technology
Diab Khalafallah, Xinyao Quan, Chong Ouyang, Mingjia Zhi, Zhanglian Hong
Summary: Utilizing waste potato peel derived hierarchical porous carbon materials doped with sulfur and phosphorus can lead to the development of effective supercapacitor electrode materials with high specific capacitance and cycling stability. The co-doped porous activated carbon not only promotes capacitive performance but also possesses fascinating porous features beneficial for ion adsorption and contact area enlargement.
Article
Chemistry, Physical
Lulu Lyu, Wytse Hooch Antink, Byoung-Hoon Lee, Chae Won Kim, Euiyeon Jung, Kwang-dong Seong, Taeghwan Hyeon, Yuanzhe Piao
Summary: Metal phosphides, particularly NiCoP doped with various metal cations, show enhanced electrochemical performance for energy storage and electrocatalysis. The incorporation of multiple dopants results in increased active sites, improved ion-diffusion kinetics, and a modulated electronic structure, leading to superior capacity and cycling stability. An aqueous hybrid supercapacitor utilizing AlCu-NiCoP as the positive electrode demonstrated high energy density and good cycling stability.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Energy & Fuels
Jizhao Zou, Jingyou Xu, Hongliang Wu, Zhangjian Li, Fenglin Zhao, Xierong Zeng, Junfeng Huang
Summary: This study focuses on the fabrication of carbon materials with excellent electrochemical behaviors through carbonization and alkaline activation using golden imperial chrysanthemum as the raw material. The alkaline activation enhances the specific surface area and distribution of pores, resulting in high cycle stability and energy density.
JOURNAL OF ENERGY STORAGE
(2022)
Review
Engineering, Biomedical
Babak Mehrjou, Yuzheng Wu, Pei Liu, Guomin Wang, Paul K. Chu
Summary: The emergence of antibiotic-resistant pathogens poses serious health issues. There is a global effort to find new methods to treat infections and develop better antibacterial materials and therapies. Non-biological methods and biomimetic patterns show potential for antimicrobial effects. This review summarizes recent advances in the application of chemical and biological approaches to combat bacterial infection and antibiotic resistance.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Wanying Zhang, Madiha Rafiq, Jingcheng Lu, Abebe Reda Woldu, Jianhong Zhou, Hong Xia, Paul K. Chu, Liangsheng Hu, Fushen Lu
Summary: Direct methanol fuel cells (DMFCs) are a viable alternative for portable applications due to their high energy density, easy implementation, low operating temperature, and convenient methanol fuel storage. However, the widespread use of DMFCs is hindered by barriers such as high cost and low durability of noble metal-based catalysts. Nickel-based electrocatalysts, with their low price, high durability, and remarkable surface oxidation properties, can potentially replace expensive noble metal catalysts.
Article
Chemistry, Physical
Chengfeng Xiong, Yu Wang, Liangliang Lin, Ming Gao, Yifan Huang, Paul K. Chu
Summary: Nanocomposite coatings based on aluminum nitride and siloxane matrix were deposited on polyimide films by atmospheric pressure plasma, leading to improved thermal conductivity. The evolution of the coatings upon deposition time variations was systematically investigated. After 6 minutes of deposition, the surface energy of the PI film was improved to 32.8 mJ/m2, and the thermal conductivity was enhanced to 1.68 W/mK with a coating hardness of 2H. The results demonstrate the efficient modification of flexible materials with improved thermal conductivity using plasma-deposited nanocomposite coatings.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Engineering, Environmental
Zanling Huang, Abebe Reda Woldu, Xiang Peng, Paul K. Chu, Qing-Xiao Tong, Liangsheng Hu
Summary: It has been found that adding Fe ions into alkaline electrolytes can enhance the oxygen evolution reaction (OER) activity of Ni-based catalysts. Experimental analysis reveals that Fe(III) can promote OER kinetics through two approaches, leading to improved performance and stability in electrochemical water splitting.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Electrochemistry
Peng Guo, Lennart Singer, Zhiyong Zhao, Wojciech Kukulka, Finn Sebastian, Ewa Mijowska, Michael Zharnikov, Peter Comba, Ruediger Klingeler
Summary: A simple method was used to prepare carbon-coated tungsten oxides and disulfides using low-cost carbon sources (CTAB and PVP). These composites exhibit excellent capacity retention and cycle stability in lithium-ion storage.
ELECTROCHIMICA ACTA
(2023)
Article
Optics
Ning Sheng, Haihao Fu, Tongyu Meng, Jianxin Wang, Wei Liu, Jingwei Lv, Zao Yi, Lin Yang, Paul K. Chu, Chao Liu
Summary: This paper studies the influence of SiO2 and four new optical materials on the OAM mode characteristics in orbital angular momentum (OAM) photonic crystal fibers (PCFs) for more efficient communication. The properties of OAM modes transmitted in the five materials, such as effective index difference, dispersion, confinement loss, etc., are derived using the finite element method. Universal rules for optimizing PCF in the future to improve the efficiency of optical fiber communication are obtained through in-depth analysis.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2023)
Article
Optics
Lu Xue, Xinzhi Sheng, Qiyuan Mu, Depeng Kong, Zhaojin Wang, Paul K. Chu, Shuqin Lou
Summary: In this study, a high-birefringence and low-loss terahertz hollow-core anti-resonant fiber was designed and numerically analyzed. Numerical analysis showed that the fiber achieved a birefringence of 10-2 in the transmission window of 0.21 to 0.35 THz, with the highest birefringence of 4.61 x 10-2 at 0.21 THz and a loss of 0.15 cm-1. Experimental results using 3D printing and THz time-domain spectroscopy confirmed the high birefringence of 2.17 x 10-2 to 3.72 x 10-2 and low loss of 0.12 to 0.18 cm-1 in the 0.2 to 0.27 THz transmission window. The highest birefringence was 3.72 x 10-2 at 0.22 THz, with a corresponding loss of 0.18 cm-1. This THz hollow-core anti-resonant fiber exhibits higher birefringence and relatively lower loss compared to recent similar fibers reported.
Article
Chemistry, Applied
Zanling Huang, Shuqi Zhu, Yuan Duan, Chaoran Pi, Xuming Zhang, Abebe Reda Woldu, Jing-Xin Jian, Paul K. Chu, Qing-Xiao Tong, Liangsheng Hu, Xiangdong Yao
Summary: In this study, it was found that Ni sites act as a host to attract Fe(III) to form Fe(Ni)(III) binary centers, which promote the oxygen evolution reaction (OER) activity and stability by cyclical formation of intermediates. Additionally, other ions can also catalyze the OER process on different electrodes.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Physics, Applied
Wei Li, Debao Wang, Tongyu Meng, Wei Zhou, Jingwei Lv, Lin Yang, Wei Liu, Yan Lv, Yu Wang, Paul K. Chu, Chao Liu
Summary: A hybrid metal-dielectric nanoparticle composed of a gold dimer and silicon-silica is designed and analyzed using the finite element method (FEM) to explore the strong coupling between the combined plasmonic mode and anapole mode. Theoretical simulation shows that the nanoparticle achieves an enhanced electric field enhancement of 640 and exhibits unidirectional scattering with almost zero backscattering at multiple wavelengths in the far-field region. Additionally, the composite nanoparticle exhibits a high Purcell factor of 12,193 and sensitivity of 610nm/RIU, surpassing that of single-metal or dielectric nanoparticles.
MODERN PHYSICS LETTERS B
(2023)
Correction
Materials Science, Biomaterials
Xiuhua Wang, Lei Tan, Xiangmei Liu, Zhenduo Cui, Xianjin Yang, Kelvin W. K. Yeung, Paul K. Chu, Shuilin Wu
BIOMATERIALS SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Klaudia Zielinkiewicz, Daria Baranowska, Ewa Mijowska
Summary: In this study, a facile and scalable fabrication route for borophene was explored using ball milling. The optimal ball milling conditions were determined, resulting in the successful fabrication of thin few-layered borophene. The mechanical energy and heat generated during ball milling affected the structure of borophene, leading to the discovery of different crystalline phases. This research opens up new possibilities for fundamental studies and practical applications of borophene.
Article
Electrochemistry
Hanxue Zhao, Mai Li, Jintao Du, Yuhang Lei, Ayesha Irfan, Muhammad Imran, Chunrui Wang, Jun He, Zhongyi Sun, Paul K. Chu
Summary: Porous carbon derived from metal-organic frameworks (MOFs) is synthesized to form a three-dimensional structure of conductive porous carbon nanoflakes (CPCN) with unique structural characteristics and conductivity. Incorporation of nanoscale CdSe particles as energy-storage materials into CPCN results in a flexible electrode for sodium-ion supercapacitors. The CdSe/CPCN@CC electrode exhibits high specific capacitance and excellent cycling stability, making it suitable for flexible and wearable applications.
ELECTROCHIMICA ACTA
(2023)
Article
Materials Science, Ceramics
Yixiong Gao, Shu Xiao, Hao Wu, Chunming Wu, Guohua Chen, Yansheng Yin, Paul K. Chu
Summary: This study aims to enhance the performance of micro-arc oxidation (MAO) coatings by integrating hexagonal boron nitride (h-BN) nanoparticles. The results show that h-BN integration reduces porosity and roughness, while improving hardness, adhesion, corrosion resistance, and wear resistance.
CERAMICS INTERNATIONAL
(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)