Article
Chemistry, Physical
Milan K. Sadan, Minyeong Jeon, Jimin Yun, Eunji Song, Kwon-Koo Cho, Jou-Hyeon Ahn, Hyo-Jun Ahn
Summary: The study demonstrates the application of mesoporous Ni3S2 as anode material for SIBs and PIBs, showing exceptional rate and cycling performances. Mesoporous Ni3S2 exhibited high capacity and stability at different current densities, outperforming previous works on the use of Ni3S2 for SIBs and PIBs.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Polymer Science
Paloma Garcia-Arroyo, Paula Navalpotro, Maria J. Mancheno, Elena Salagre, Jorge J. Cabrera-Trujillo, Enrique G. Michel, Jose L. Segura, Javier Carretero-Gonzalez
Summary: In this study, a novel two-dimensional polymer network, DAPT-TFP, was successfully synthesized and shown to exhibit high thermal and chemical stability. An application to conductive additive-free electrode demonstrated the potential of the material, with improved performance of the nanostructure through simple acidic treatment.
Article
Chemistry, Applied
Zhonghui Sun, Meng Shu, Jiabin Li, Bing Liu, Hongyan Yao, Shaowei Guan, Zhenhua Sun
Summary: Organic electrode materials, such as the hexaazatrinaphthalene-based azo-linked hyperbranched polymer (HAHP) synthesized in this study, show promise for lithium-ion batteries (LIBs) due to their environmental friendliness and structural diversity. To improve their performance, the HAHP@SWCNT nanocomposites were developed by growing nanosized HAHP on the surface of single-walled carbon nanotubes (SWCNTs) using a template. This resulted in porous structures with highly accessible active sites and improved cycling stability and fast charge-discharge rates. The HAHP@SWCNT nanocomposites exhibited high specific capacity, excellent cycling stability, and outstanding rate performance, making them potential candidates for high-performance LIBs.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Olusola John Dahunsi, Siyuan Gao, Jacob Kaelin, Bomin Li, Iddrisu Abdul B. Razak, Bowen An, Yingwen Cheng
Summary: The anode-free battery architecture offers high energy density and eliminates the handling of hazardous metal electrodes. However, these batteries often suffer from capacity decay and sensitivity to side reactions. This study investigates electrochemical interfaces for better Na anodes and achieves high performance with a Zn surface, resulting in stable cycling and improved retention in full cells.
Article
Chemistry, Physical
Tianyu Shi, Chenyuan Zhao, Yuxiang Zhou, Haihong Yin, Changqing Song, Lin Qin, Zhiliang Wang, Haibao Shao, Ke Yu
Summary: By designing a special core-shell structured cathode, the challenges hindering the practical applications of lithium-sulfur batteries have been overcome, leading to improved battery performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Hao Li, Changchun Hu, Yaping Xia, Ting Li, Daohong Zhang, Fei Xu
Summary: Electrochemical conversion reactions provide more choices for Na-storage materials, but long-term cyclability and reversibility are challenges. This study introduces a novel approach using amino group-functioned hyperbranched polymer as a template and electrode additive to design high-performance FeSe2-AHP composite with chemical interaction. The FeSe2-AHP composite shows superior rate capability and remarkable cyclability, highlighting an innovative strategy for conversion-type material design.
Article
Chemistry, Analytical
Dorcas Zide, Cecil Felix, Tobie Oosthuysen, Bernard Jan Bladergroen
Summary: In this study, beta-Ni(OH)(2) was used as the starting material and partially substituted with Mg2+ and Mn2+ to optimize the performance of the positive electrode materials for nickel-iron batteries. The resulting Ni0.95Mg0.05(OH)(2) and Ni0.9Mn0.1(OH)(2) compositions showed promising electrochemical activities, with improved cycle life and discharge capacities compared to the undoped Ni(OH)(2) electrode.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
N. C. Maile, S. K. Shinde, D. -y. Kim, K. C. Devarayapalli, Dae Sung Lee
Summary: In this study, nickel cobalt sulfide (Ni-Co-S) nanoflakes were successfully grown on 3D conductive nickel foam using binder-free electrochemical deposition. The resulting positive electrode demonstrated remarkable electrochemical storage performance, and when combined with activated carbon negative electrode, an aqueous hybrid supercapacitor with enhanced charge-discharge potential and remarkable stability was assembled. These findings highlight the potential of Ni-Co-S@NF for hybrid supercapacitor applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Energy & Fuels
Ya Chen, Longjun Wang, Hui Gan, Yuanhe Jiang, Jiangbang Feng, Jiuqing Liu, Xichang Shi
Summary: This study reports a method for fabricating electrodes for supercapacitors using electrochemical deposition, hydrothermal conversion, and sulfurization. The binder-free NiCo2S4@NiS/CoS electrode exhibits high specific capacitance, excellent high-rate capability, and good cycling performance, making it a suitable cathode material for supercapacitors.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Multidisciplinary
Xu Yang, Rongyu Zhang, Shifeng Xu, Dan Xu, Jia Ma, Sai Wang
Summary: Na-ion batteries have gained attention for their abundant resources and low cost. By compositing SnSe2 with different dimensional carbon materials via ball milling, the performance of the batteries can be improved. Graphene plays a vital role in enhancing charge transfer, capacity, and cycle stability in the composites.
Article
Energy & Fuels
Yeon-Ju Lee, B. S. Reddy, Hyeon-A Hong, Ki-Won Kim, Seong-Jin Cho, Hyo-Jun Ahn, Jou-Hyeon Ahn, Kwon-Koo Cho
Summary: Transition metal sulfides have been investigated as a promising anode material for LIBs and SIBs. In this study, carbon-coated nickel sulfide composites were synthesized using a solvothermal method, resulting in improved cyclic stabilities and rate performances for both LIBs and SIBs.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Lorenzo Mardegan, Chris Dreessen, Michele Sessolo, Daniel Tordera, Henk J. Bolink
Summary: The study investigated the use of a hyperbranched polymer blended with a Li salt as an electrolyte in PLECs, achieving excellent electroluminescent properties with high stability, long lifetime, peak efficiency, and short turn-on times. Additionally, the study examined the stability of the devices through measuring the photoluminescence during electroluminescent operation, showing quenching and immediate recovery of photoluminescence in vertically stacked devices.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Rashid Khan, Zhengwei Wan, Waqar Ahmad, Shabab Hussain, Jianhua Zhu, Dan Qian, Zhuoying Wu, Muhammad Farooq Saleem, Min Ling
Summary: Developing sodium-ion batteries (SIBs) with high initial coulombic efficiency (ICE) and long-term cycling stability is crucial. Designing anode materials that exhibit high ICE is a promising strategy. A trifunctional network binder greatly improves electrochemical performance and ICE, providing excellent mechanical properties and adhesion strength.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Qiang Ma, Sha Fu, An-Jun Wu, Qi Deng, Wei-Dong Li, Dan Yue, Bing Zhang, Xiong-Wei Wu, Zhen-Ling Wang, Yu-Guo Guo
Summary: Bidirectionally functional polymer electrolytes (BDFPE) were designed to simultaneously handle the interface issues faced by anodes and cathodes. By constructing the BDFPE, a smooth and dendrite-free lithium deposition is enabled for Li||Li symmetry cells, and Li||LiNi0.6Co0.2Mn0.2O2 batteries demonstrate favorable cycling and rate capability with a stable CEI layer. The study provides a promising design strategy for high energy density lithium metal batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Weixiao Ji, Xiaoxiao Zhang, Huainan Qu, Le Xin, Avery T. Luedtke, He Huang, Tristan H. Lambert, Deyang Qu
Summary: This study successfully utilized polyimide material as an organic cathode to manufacture an all-solid-state battery with high energy density and stability. By introducing a dry-film approach, an ultrathin solid-state electrolyte layer and high-area organic cathode were achieved, significantly improving the cell-level energy density.
Article
Chemistry, Multidisciplinary
Yu Jiang, Huiqing Zhong, Qinwen Tan, Dezhi Zhan, Aolin Wang, Daohong Zhang
Summary: A new type of responsive hydrogel was created by utilizing the hydrophobic aggregation of strained 1,2-dithiolane rings, showing self-reinforcement and self-healing capacity. Oligomerization of 1,2-dithiolane within hydrophobic domains under UV irradiation not only reinforced the hydrogel but also maintained its dynamic cross-linked nature by converting the intraring dynamic S-S bond to an outer one.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Shuai Cao, Fanjue Wen, Xin Ren, Yuliang Cao, Xinping Ai, Fei Xu
Summary: A nonflammable high-concentration electrolyte has been developed for graphite/LiNi0.8Co0.1Mn0.1O2 lithium-ion batteries. Through investigation of the solvation structure and electrode/electrolyte interface, the origin of capacity decay has been determined. The use of a dual-salt strategy has achieved stable cycling with higher voltages.
JOURNAL OF POWER SOURCES
(2023)
Article
Engineering, Environmental
Haifeng Xu, Jiarui Hu, Xin Liu, Huanghu Wu, Yu Jiang, Zejun Xu, Sufang Chen, Tingcheng Li, Junheng Zhang, Daohong Zhang
Summary: In this study, thiol-terminated hyperbranched polyimides (DSPI-n) were synthesized and covalently grafted onto the surface of pristine carbon fiber fabric (PCF) to produce thiol-functionalized carbon fiber fabric (TCF). The degradable imide skeleton hyperbranched epoxy resin (DIHE-n) was then synthesized from DSPI-n to prepare the DIHE-n/TCF composites. The DIHE-n/TCF composites exhibited significantly improved mechanical properties and could be completely degraded under mild conditions, allowing for intact recycling of the carbon fiber fabric. This study provides a new approach for the preparation of recyclable and high-performance EP/CF composites.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Donggang Tao, Ting Li, Yudi Tang, Yuliang Cao, Fei Xu
Summary: Rechargeable magnesium batteries are limited by the lack of suitable cathodes. A new strategy using a redox-active polyatomic anion, copper tetraselenophosphate (Cu3PSe4), effectively weakens the interaction between magnesium ions and the cathode material, improving the battery's performance.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Xinyi Zhao, Fei Xu
Summary: Rechargeable magnesium batteries (RMBs) have attracted research interest for their low cost and high reliability, but designing cathode materials is a major challenge. In this study, an amorphous molybdenum polysulfide (a-MoSx) was synthesized and used as the cathode material for RMBs, demonstrating superior capacity and rate performance compared to crystalline MoS2. Mechanism studies showed that both molybdenum and sulfur contribute to the capacity through redox reactions. Further optimizations indicated that low-temperature synthesis improves the magnesium storage performance of a-MoSx.
Article
Chemistry, Multidisciplinary
Xin Liu, Huanghu Wu, Wei Xu, Yu Jiang, Junheng Zhang, Bangjiao Ye, Hongjun Zhang, Sufang Chen, Menghe Miao, Daohong Zhang
Summary: This study presents the preparation of hyperbranched epoxy resins with imide structures, which exhibit excellent comprehensive properties in terms of strength, modulus, toughness, low-temperature resistance, and degradability. By controlling the molecular free volume properties, the conflicts between strength and toughness and between high performance and highly efficient degradation are successfully resolved, providing a new approach for designing ultrastrong, tough, and recyclable thermoset epoxy resins.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yu Jiang, Dezhi Zhan, Meng Zhang, Ying Zhu, Huiqing Zhong, Yangfei Wu, Qinwen Tan, Xinhua Dong, Daohong Zhang, Nikos Hadjichristidis
Summary: A novel family of strong and ultra-tough ionic hydrogels was fabricated using a carboxyl-functionalized and acryloyl-terminated hyperbranched polycaprolactone (PCL) as a macro-cross-linker. The hydrogels exhibited high mechanical strength, superior toughness, and good ionic conductivity, making them suitable for flexible strain sensors. The hyperbranched PCL structure played a crucial role in enhancing the hydrogel properties, providing an optimal balance of covalent and non-covalent cross-linking.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Nuo Liang, Xin Liu, Jiarui Hu, Yu Wu, Mengjie Peng, Yunke Ma, Yu Jiang, Juan Cheng, Sufang Chen, Daohong Zhang
Summary: Sustainability and high-performance of lightweight epoxy resin/carbon fiber composites are challenges in aerospace and wind power applications. The key is designing epoxy resins from non-petroleum-based materials, recycling carbon fibers, and improving interfacial interaction. This study presents the synthesis of bio-based degradable hyperbranched epoxy resins and investigates their topological properties and their effects on the mechanical and interfacial performance of the composites, leading to the discovery of interfacial improvement and carbon fiber recycling mechanisms. This work offers a promising approach for sustainable high-performance epoxy resin/carbon fiber composites.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Polymer Science
Fang Wei, Junheng Zhang, Cheng Wu, Mi Luo, Bangjiao Ye, Hongjun Zhang, Junsheng Wang, Menghe Miao, Tingcheng Li, Daohong Zhang
Summary: Recyclable flame-retardant epoxy resins (FREPs) have been developed using itaconic acid-derived hyperbranched epoxy resin (IA-EHBP) and (1,3,5-hexahydro-s-triazine-1,3,5-triyl)benzyl mercaptan (HT-BM). These resins can be degraded into monomers with high yield and the IA-EHBP structure improves their mechanical properties. The incorporation of IA-EHBP also enhances the flame retardancy of the resins by promoting char residue formation and preventing the generation of combustible volatiles. This method provides a convenient and closed-loop approach for efficient chemical recycling and reuse of end-of-life flame-retardant materials.
Article
Materials Science, Multidisciplinary
Hongda Gui, Fei Xu
Summary: The application of rechargeable magnesium batteries (RMBs) is hindered by the lack of suitable cathodes. Covalent organic frameworks (COFs) are considered promising as they have flexible organic polymer chains and an open structure. In this study, a new family of COF-based polyimide cathodes is synthesized and investigated as RMB cathodes. The COF cathode exhibits a high Mg-storage capacity of 120 mAh g-1, as well as high rate capability and good cycleability, suggesting that COFs could be a promising family of cathode materials for RMBs.
Article
Chemistry, Applied
Yu Wu, Sunmeng Huang, Xin Liu, Yu Jiang, Daohong Zhang
Summary: An efficient and environmentally friendly UV-curable strategy for the fabrication of strong, flexible, and transparent polyurethane-polyacrylate coatings is presented. The coatings exhibit outstanding mechanical properties and UV-protective performance, making them suitable for applications such as automotive glass films.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Chemistry, Multidisciplinary
Yanxin Hao, Liuyue Zhong, Tingcheng Li, Junheng Zhang, Daohong Zhang
Summary: An efficient strategy utilizing disulfide and imine dynamic covalent bonds in a vanillin-based hyperbranched epoxy resin is proposed for the development of recyclable biobased materials. The resin demonstrates high glass transition temperature, improved creep resistance, mechanical properties, and exhibits self-healing ability, reprocessability, and degradability. This represents a significant advancement in the design of high-performance epoxy covalent adaptable networks.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Xin Ren, Donggang Tao, Shuai Cui, Ting Li, Yuliang Cao, Fei Xu
Summary: In this study, a double-chain conjugated carbonyl polymer is designed and investigated as a cathode material for rechargeable Mg batteries. The polymer shows higher Mg-storage capacity and stability, providing important insights for designing organic conjugated polymers for high-performance Mg-storage materials.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xu Han, Yu Wu, Haoran Han, Zejun Xu, Tingcheng Li, Yu Jiang, Sufang Chen, Daohong Zhang
Summary: A super-strong reusable thermoplastic hot melt adhesive (HEA) was synthesized by incorporating a hyperbranched epoxy resin (MHER) with traditional diglycidyl ether of bisphenol A (DGEBA) and a polyether amine bearing the ureidopyrimidinone motif. HEA-8 showed significantly improved adhesion strength, tensile strength, and tensile toughness compared to HEA-0, with approximately 10.7 MPa of adhesion strength and >82% adhesion strength retained after five cycles.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Yu Jiang, Ziyu Ran, Yangfei Wu, Meng Zhang, Ying Ma, Daohong Zhang
Summary: This article introduces a new family of reversible fluorescent adhesives based on Diels-Alder covalent adaptable networks with dynamic AIE crosslinks. The accurate intrinsic correlation between emission behavior, cross-linking state, and adhesion capability is established, enabling the in situ visualization of adhesion capacity.
CHEMICAL COMMUNICATIONS
(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)