Article
Chemistry, Physical
Uday Raj Singh, Satyasekhar Bhogilla
Summary: This study presents a comparative analysis of the performance of metal hydride hydrogen storage units using LaNi5 and compacts of LaNi5 incorporated with expanded natural graphite (ENG). The research highlights the need to enhance thermal conductivity to improve heat transfer during hydrogen absorption. The results demonstrate that the use of LaNi5 and ENG compacts significantly improves heat transfer, hydrogen storage capacity, and reduces absorption time.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Bin Wang, Yihang Li, Jia Hao Pang, Kohei Watanabe, Ryo Takita, Shunsuke Chiba
Summary: A protocol for regio-controlled hydromagnesiation of 1,3-enynes was developed using magnesium hydride generated in situ by solvothermal treatment of sodium hydride and magnesium iodide in THF. The resulting allenylmagnesium species could be converted into tri- and tetra-substituted allenes by subsequent treatment with various carbon- and silicon-based electrophiles with the aid of CuCN as a catalyst.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Rahul U. Urunkar, Sharad D. Patil
Summary: The thermal management of hydride-based hydrogen storage reactor was studied using numerical analysis and mathematical modeling. The study found that CuO/HTF nanofluid with a concentration of 5% exhibited the best absorption rate and improved heat exchange properties in the hydride reactor.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Yihang Li, Jiahua Chen, Jaslyn Jing Wen Ng, Shunsuke Chiba
Summary: A protocol was developed to generate allylmagnesium reagents from 2-aryl-1,3-dienes using in situ generated magnesium hydride (MgH2) through solvothermal treatment of sodium hydride (NaH) and magnesium iodide (MgI2) in tetrahydrofuran (THF). Downstream functionalization of the resulting allylmagnesium reagents with carbonyl compounds or alkyl (pseudo)halides led to branched products with an allylic quaternary carbon center, while reaction with chlorosilanes resulted in regio and stereoselective formation of linear allylsilanes. Further derivatizations of the homoallylic alcohols and allylsilanes were also demonstrated.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Nanoscience & Nanotechnology
Chulaluck Pratthana, Kondo-Francois Aguey-Zinsou
Summary: This study developed a method to improve the hydrogen properties of lithium aluminum hydride by encapsulating it in a titanium shell. The core-shell nanostructures obtained showed a significant improvement in dehydrogenation temperatures and desorption kinetics. However, there was some loss of hydrogen reversibility due to the loss of the core-shell structure during hydrogen cycling.
ACS APPLIED NANO MATERIALS
(2022)
Review
Energy & Fuels
Noratiqah Sazelee, Nurul Amirah Ali, Muhammad Syarifuddin Yahya, Nurul Shafikah Mustafa, Firdaus Abdul Halim Yap, Saiful Bahri Mohamed, Muhammad Zahruddin Ghazali, Suwamo Suwarno, Mohammad Ismail
Summary: This study reviewed the recent developments in the hydrogen storage performance of magnesium hydride (MgH2) and its composite system with lithium alanate (LiAlH4) (Mg-Li-Al). The concept of destabilization has been extensively explored and proved effective in reducing desorption temperature and improving sorption properties. The intermetallic alloys formed during the dehydrogenation process provide thermodynamic and kinetic destabilization in the Mg-Li-Al system.
FRONTIERS IN ENERGY RESEARCH
(2022)
Article
Energy & Fuels
Liming Ye, Ning Xie, Youtai Lan, Junyi Niu, Suyun Deng, Xuenong Gao, Yutang Fang, Zhengguo Zhang
Summary: In this paper, the authors investigated the use of phase change materials to improve the energy efficiency of electric radiant floor heating systems. By adding certain additives, they were able to enhance the thermal properties of the phase change material and confirmed its thermal stability and reliability through experimental tests.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Yuki Nakagawa, Tomoharu Kimura, Takao Ohki, Shigehito Isobe, Tamaki Shibayama
Summary: The effect of mechanical milling on the lithium-ion conductivity of lithium alanate (LiAlH4) is investigated, showing significant improvement in conductivity by increasing the vacancy concentration at the Li-ion site of inner LiAlH4 grains.
SOLID STATE IONICS
(2021)
Article
Thermodynamics
Zewei Bao, Dong Yan, Zezhi Zhu, Dejian Wu
Summary: This study proposed a method to improve the performance of MH reactors by changing the material content gradient in a multilayer MH bed configuration. Simulation results showed that aligning the ENG content gradient with the heat flow direction and increasing the gradient steepness can enhance both the heat storage rate and power output rate.
APPLIED THERMAL ENGINEERING
(2021)
Review
Energy & Fuels
Dan Zhang, Weizhuo Zhang, Shengrui Zhang, Xiaohui Ji, Le Li
Summary: This article reviews the synthesis methods and composite strategies of expanded graphite in high-performance lithium-based batteries, and introduces the latest research findings on expanded graphite-based composite materials. The important role of expanded graphite-based composite materials in this field is emphasized, and the remaining challenges are discussed to accelerate the advancement and commercialization of lithium-based battery technology.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
J. L. Snider, T. M. Mattox, Y-S Liu, L. F. Wan, P. Wijeratne, M. D. Allendorf, V Stavila, B. C. Wood, L. E. Klebanoff
Summary: LiH significantly improves the hydrogenation of MgB2, lowering the temperature and without forming undesirable intermediates, while TiH2 is essentially inert when mixed with MgB2 during high-pressure hydrogenation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Thermodynamics
Zezhi Zhu, Zewei Bao, Dejian Wu
Summary: This study utilized a multilayer MH bed configuration and investigated the effect of ENG content gradient on the performance of the MH reactor. By optimizing the distribution of ENG, faster hydrogen absorption and better heat-discharge performance were achieved. The proposed optimization method can be applied to optimize the allocation of high-conductivity materials for transient heat conduction problems.
APPLIED THERMAL ENGINEERING
(2022)
Review
Chemistry, Multidisciplinary
Lin Li, Zhe Hu, Shuo Zhao, Shu-Lei Chou
Summary: This review summarizes alkali and alkaline-earth metal ion-solvent co-intercalation reactions in nonaqueous rechargeable batteries, focusing on electrochemical performance, co-intercalation mechanism, conditions for reversible co-intercalation, and potential for practical application. It suggests future research should aim to reduce the redox potential of co-intercalation reactions for high energy-density and power-density full cells, providing significant guidance for further development of fast-charging batteries.
Review
Chemistry, Inorganic & Nuclear
Liang Liu, Alexander Ilyushechkin, Daniel Liang, Ashleigh Cousins, Wendy Tian, Cherry Chen, Jon Yin, Liezl Schoeman
Summary: Metal alloys and intermetallic compounds can effectively store hydrogen, but their absorption and desorption kinetics are influenced by heat flow. To improve thermal conductivity, composite structures with high thermal conductivity materials like carbon and expanded natural graphite are commonly used.
Review
Crystallography
Nuraini Ruslan, Muhammad Syarifuddin Yahya, Md Nurul Islam Siddique, Ashish Prabhakar Yengantiwar, Mohammad Ismail, Md Rabiul Awal, Mohd Zaki Mohd Yusoff, Muhammad Firdaus Asyraf Abdul Halim Yap, Nurul Shafikah Mustafa
Summary: Metal hydrides such as MgH2 and NaBH4 have high potential for solid-state hydrogen storage. However, a dehydrogenation process is required prior to hydrogen utilization. The hydrolysis method is a possible way to extract or generate hydrogen, but issues like passivation layer, high cost and sluggish self-hydrolysis can be overcome with the help of catalysts. Studies have shown that adding catalysts like chloride, oxide, fluoride, platinum, ruthenium, cobalt, and nickel can significantly enhance the amount of hydrogen released during the hydrolysis of MgH2 and NaBH4.
Article
Energy & Fuels
Guruprakash Karkera, Mervyn Soans, Bosubabu Dasari, Ediga Umeshbabu, Musa Ali Cambaz, Zhen Meng, Thomas Diemant, Maximilian Fichtner
Summary: Rechargeable chloride-ion batteries (CIBs) are a promising battery technology with the potential to offer high theoretical volumetric capacities, lower cost, and higher abundance. The challenge lies in finding suitable electrodes and electrolytes. In this study, tungsten oxychloride is introduced as a cathode material for CIBs, demonstrating good electrochemical performance and reversible capacity. Postmortem analysis reveals the reversible transfer of chloride ions between electrodes through a conversion mechanism, paving the way for the use of tungsten chloride-based electrode materials for battery applications.
Article
Chemistry, Physical
Liping Wang, Zhenyou Li, Zhen Meng, Yanlei Xiu, Bosubabu Dasari, Zhirong Zhao-Karger, Maximilian Fichtner
Summary: This study presents the synthesis of a non-corrosive gel polymer electrolyte based on magnesium tetrakis(hexafluoroisopropyloxy)borate, which demonstrates excellent electrolytic properties. The electrolyte shows high ionic conductivity, reversible Mg plating/stripping capability, and low voltage polarization, while preventing dissolution and diffusion of soluble electrode materials. Additionally, it suppresses the polysulfide shuttle in Mg-S batteries, thus improving battery performance.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Physical
Piotr Jankowski, Zhenyou Li, Zhirong Zhao-Karger, Thomas Diemant, Maximilian Fichtner, Tejs Vegge, Juan Maria Garcia Lastra
Summary: Magnesium batteries are a promising post-lithium technology, and finding an efficient and safe electrolyte is crucial for their commercialization. Magnesium tetrakis(hexafluoroisopropyloxy)borate (Mg[B(hfip)(4)](2)) is considered one of the best candidates due to its electrochemical properties and chemical stability. In this study, we analyze the unique structure of this salt and the interactions in the electrolyte, revealing the delicate balance between electron-withdrawing effects and ligand stabilization. Understanding the nature of this anion allows for the rational development of new anion structures.
ENERGY STORAGE MATERIALS
(2022)
Article
Multidisciplinary Sciences
Venkat Pamidi, Shivam Trivedi, Santosh Behara, Maximilian Fichtner, M. Anji Reddy
Summary: Confining particle-electrolyte interactions to the surface of electrode materials is crucial for developing sustainable and safe batteries. Research reveals the potential of micron-sized single-crystal particles in sodium-ion batteries, showing high cycling and voltage stability, enhanced thermal stability, and relative stability in water and ambient atmosphere.
Article
Chemistry, Physical
Shashwat Singh, Deobrat Singh, Rajeev Ahuja, Maximilian Fichtner, Prabeer Barpanda
Summary: Eldfellite NaVIII(SO4)(2) is introduced as a new versatile cathode material for Li-ion and Na-ion batteries, with potential two-electron uptake. The study provides mechanistic insights into alkali ion migration and the redox center during (de)insertion of Li+/Na+ ions.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Ediga Umeshbabu, Satyanarayana Maddukuri, Doron Aurbach, Maximilian Fichtner, Anji Reddy Munnangi
Summary: We introduced a garnet-type lithium metal fluoride, Li3Na3M2F12 (M = Al, Sc, In), as solid-state lithium-ion conductors for the first time. The mechanically milled Li3Na3M2F12 compounds crystallized in a cubic garnet-like structure. The ionic conductivities of Li3Na3Al2F12, Li3Na3Sc2F12, and Li3Na3In2F12 are relatively low, but still better than the oxide analogues Li(3)Ln(3)Te(2)O(12) (Ln = Er, Gd, Tb, Nd). Strategies for further improving conductivities of garnet-type Li3Na3M2F12 were also presented.
ACS APPLIED ENERGY MATERIALS
(2023)
Review
Chemistry, Physical
Zhenyou Li, Joachim Haecker, Maximilian Fichtner, Zhirong Zhao-Karger
Summary: This review summarizes recent findings related to Mg cathode chemistry, focusing on strategies that promote Mg2+ diffusion and the critical role of cathode-electrolyte interfaces. The article also discusses conversion chemistries and coordination chemistries that bypass Mg2+ diffusion and revisits hybrid systems combining monovalent cathode chemistries with high-capacity Mg anodes. Overall, the aim is to provide fundamental insights into cathode chemistry for practical high-performance Mg batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Electrochemistry
Janina Drews, Johannes Wiedemann, Rudi Ruben Maca Alaluf, Liping Wang, J. Alberto Blazquez, Zhirong Zhao-Karger, Maximilian Fichtner, Timo Danner, Arnulf Latz
Summary: The impact of different mass loadings and particle size distribution of the active material on the performance of magnesium-ion batteries has been studied. A detailed continuum model is developed to describe the complex intercalation process of magnesium into a Chevrel phase cathode, taking into account the thermodynamics, kinetics, and the influence of desolvation on electrochemical reactions.
BATTERIES & SUPERCAPS
(2023)
Article
Chemistry, Physical
Yasaman Shirazi Moghadam, Yang Hu, Abdel El Kharbachi, Stephanie Belin, Thomas Diemant, Jun Chen, Robert A. House, Peter G. Bruce, Maximilian Fichtner
Summary: In this work, synchrotron operando X-ray absorption spectroscopy (XAS) was used to study the chemical and structural evolution of Mn and Ti in Li-rich disordered rocksalt (DRS) cathode compounds for Li-ion batteries. The results provide insights into the development of Mn double-redox reactions in the DRS cathodes from initial cycles to prolonged cycling and elucidate the impacts of the reduced Mn redox activity and the increased local ordering on the cycling stability.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Daniel Bier, Zhenyou Li, Svetlana Klyatskaya, Najoua Sbei, Ananyo Roy, Sibylle Riedel, Maximilian Fichtner, Mario Ruben, Zhirong Zhao-Karger
Summary: In this study, 1,5-poly(anthraquinonylsulfide) (PAQS) was investigated as a cathode material for calcium-ion batteries. When paired with calcium tetrakis(hexafluoroisopropyloxy)borate Ca[B(hfip)(4)](2) electrolytes, PAQS showed cost-effective synthesis and environmentally friendly processing. By replacing the calcium metal anode with a calcium-tin (Ca-Sn) alloy anode, the cycling performance and rate capability of the PAQS cathodes were significantly improved.
Article
Chemistry, Inorganic & Nuclear
Deepa Singh, Shashwat Singh, Ponnappa Kechanda Prasanna, Rajeev Kumar Rai, Prae Chirawatkul, Sudip Chakraborty, Maximilian Fichtner, Prabeer Barpanda
Summary: ZnCo2(PO4)(2), a zinc-substituted cobalt phosphate synthesized using a low-cost solution combustion route, exhibited efficient oxygen evolution and reduction activities. The crystal structure of ZnCo2(PO4)(2) consists of distorted cobalt and zinc trigonal bipyramids, which allow it to function as a robust bifunctional catalyst comparable to precious metal catalysts. This research provides valuable insights for the development of highly efficient and stable electrocatalysts for metal-air batteries.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Tobias Braun, Sirshendu Dinda, Guruprakash Karkera, Georgian Melinte, Thomas Diemant, Christian Kuebel, Maximilian Fichtner, Frank Pammer
Summary: The development of commercially viable fuel cells and metal-air batteries requires effective and cheap bifunctional catalysts for the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER). Multi-component Pt-Fe-Co-Ni nanoparticles on multi-walled carbon nanotubes (MWCNTs) synthesized by wet chemistry route show excellent ORR activity and promising OER activity, comparable to Pt/C or RuO2. The catalyst also has outstanding long-term stability in ORR and OER, indicating the significant effect of Pt substitution by transition metal (TM) and the formation of nanoparticles on catalytic performance.
Article
Chemistry, Physical
Ling Lin, Ziming Ding, Guruprakash Karkera, Thomas Diemant, Mohana V. V. Kante, Daisy Agrawal, Horst Hahn, Jasmin Aghassi-Hagmann, Maximilian Fichtner, Ben Breitung, Simon Schweidler
Summary: High-entropy sulfides (HESs), as a newly developed class of materials, show great potential as efficient electrocatalysts for various reactions. In this study, HESs containing five or six transition metals are synthesized using a one-step mechanochemical process. By comparing the performances and properties of HESs with different compositions and structures with commercial IrO2, it is found that most of the HESs exhibit excellent electrocatalytic performance for the oxygen evolution reaction (OER) under alkaline conditions, outperforming the reference catalyst IrO2.
Article
Chemistry, Multidisciplinary
Deepa Singh, Yang Hu, Sher Singh Meena, Rishikesh Vengarathody, Maximilian Fichtner, Prabeer Barpanda
Summary: This study explores the use of iron-based fluorphosphate as a cathode for zinc-ion batteries, which can reversibly intercalate zinc ions and has the advantage of low cost.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Iris Blumenhofer, Yasaman Shirazi Moghadam, Abdel El Kharbachi, Yang Hu, Kai Wang, Maximilian Fichtner
Summary: This study synthesizes manganese-based disordered rock salt oxyfluorides as cathode materials for lithium-ion batteries and investigates the effect of partial vanadium substitution on their properties. Heat treatment improves the symmetry and reduces defects, leading to improved capacity retention and response to cycling rate changes in the electrodes.
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)
