Article
Polymer Science
Taichi Ikeda
Summary: Glycidyl triazolyl polymer (GTP)-based anionic poly-(ionic liquid)-s were synthesized and characterized. These anionic GTPs exhibited phase separation behavior and lower Tg compared to cationic GTPs. The presence of water improved the ionic conductivity. The electrostatic interaction between the TFSI pendant and the EMIM cation influenced the polymer-polymer interaction.
Article
Energy & Fuels
Zhipeng Xie, Meiqing Xin, Lulu Wei, Xianfa Rao, Min Zeng, Baixiong Liu, Qian Zhang
Summary: This study aims to explore the correlation between morphology evolution of zinc electrode and its performance in acid battery environment. By using ionic liquid to regulate the morphology evolution, it was found that the dissolution morphology of zinc electrode varies based on the type of ionic liquid added to the electrolyte, and the similarity between dissolution morphology and deposition morphology is related to the decrease of battery voltage.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Williams Agyei Appiah, He Li, John Lampkin, Juan Maria Garcia-Lastra
Summary: This study develops a mathematical model to describe the discharge performance and reversibility of Al-S batteries at different current densities. Experimental results show that the discharge mechanisms and Al2S3 precipitation routes of the cells vary with different current densities. The contact resistance is identified as the main factor limiting the discharge performance at high current densities.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Ryan H. DeBlock, Qiulong Wei, David S. Ashby, Danielle M. Butts, Grace J. Whang, Christopher S. Choi, Bruce S. Dunn
Summary: This study introduces a Na-ion-conducting ionogel electrolyte as a nonflammable alternative to traditional carbonate liquids, exhibiting a wide stability window and high ionic conductivity. The ionogel shows excellent interfacial properties with both negative and positive Na+ electrodes, allowing for the operation of a solid-state sodium-ion battery.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Mennatalla Elmanzalawy, Elena Sanchez-Ahijon, Ozden Kisacik, Javier Carretero-Gonzalez, Elizabeth Castillo-Martinez
Summary: A solvent-free synthesis method was used to prepare a series of potential polymer electrolytes for K-ion batteries. These electrolytes exhibited good ionic conductivity and chemical stability, allowing for reversible (de)intercalation of K+ ions at lower temperatures.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Polymer Science
Biao Zhang, Guillaume Sudre, Guilhem Quintard, Anatoli Serghei, Julien Bernard, Etienne Fleury, Aurelia Charlot
Summary: This study mixed RAFT-made poly(ionic liquid) chains with an ionic liquid, leading to homogeneous and transparent solutions due to similarities in structure and polarity. Rheology investigation showed that the solution's viscoelastic properties can be finely tuned by adjusting the chain molar mass and concentration. The high ionic conductivity and multi-scale local homogeneity of the PIL/IL solutions were confirmed through X-ray scattering experiments and microscopy analysis.
Article
Multidisciplinary Sciences
Rajeev K. Gautam, Xiao Wang, Amir Lashgari, Soumalya Sinha, Jack McGrath, Rabin Siwakoti, Jianbing Jimmy Jiang
Summary: High-performance membrane-free lithium-based nonaqueous redox flow batteries are developed using an all-organic biphasic system, which achieves high capacity retention and energy density.
NATURE COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Williams Agyei Appiah, Anna Stark, Steen Lysgaard, Jonas Busk, Piotr Jankowski, Jin Hyun Chang, Arghya Bhowmik, Bernhard Gollas, Juan Maria Garcia-Lastra
Summary: Aluminum batteries with imidazolium-based electrolytes have the potential to replace lithium-ion batteries. However, the development of reversible aluminum metal anodes is hindered by slow charge-discharge characteristics due to side reactions. In this study, a physics-based model coupled with density functional theory is used to explain the stripping-plating mechanisms on the aluminum anode surface. Sensitivity analysis is performed using machine-learning regression to identify the key parameters. The results show that aluminum deposition is controlled by diffusion and kinetics, limited by high current density. This study highlights the importance of combining models, machine learning, and experiments to understand complex electrochemical systems.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Energy & Fuels
Somya Samantaray, Debabrata Mohanty, I-Ming Hung, Md Moniruzzaman, Santosh Kumar Satpathy
Summary: Supercapacitors, with their high energy and power density compared to traditional capacitors and batteries, have gained significant attention. This review provides an overview of recent advancements in electrolyte materials for supercapacitor applications, including ionic liquids, solid-state electrolytes, and gel electrolytes. The properties such as conductivity, stability, and electrochemical window of these materials and their impact on supercapacitor performance are discussed in detail. The article also highlights the challenges and future directions in developing advanced electrolyte materials for supercapacitors.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Pratik Dhakal, Wyatt Gassaway, Jindal K. K. Shah
Summary: Knowledge of frontier orbital energies, such as HOMO and LUMO, is crucial for studying stability, corrosion inhibition potential, and reactivity of compounds. Density functional theory (DFT) calculations provide an approach to estimate these energies, but it becomes computationally intensive for large-scale screening. In this article, a machine learning model based on extreme gradient boosting is developed to predict HOMO and LUMO energies, resulting in significantly reduced computational time.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Review
Chemistry, Physical
Xiao Tang, Shuyao Lv, Kun Jiang, Guohui Zhou, Xiaomin Liu
Summary: Ionic liquid-based electrolytes have been developed in lithium-ion batteries to enhance safety and performance. This review summarizes the recent progress in the physiochemical properties, interphase formation ability, and electrochemical performance of ionic liquids and ionic liquid-based electrolytes. The applications of different types of ionic liquid-based electrolytes are discussed in detail. The challenges and perspectives for further development of ionic liquid-based electrolytes in lithium-ion batteries are also presented.
JOURNAL OF POWER SOURCES
(2022)
Review
Chemistry, Physical
Wenjing Deng, Jason Phung, Ge Li, Xiaolei Wang
Summary: Lithium-sulfur batteries have shown promise as a high-energy, environmentally friendly, and low-cost option for rechargeable batteries, but they face challenges such as irreversible relocation of polysulfides, slow reaction kinetics, and low reliability of lithium anode. Research is ongoing to address these issues and advance the development of viable LSBs for high-performance technology with high energy density and long cycling stability.
Review
Energy & Fuels
Amirhossein Enayati Gerdroodbar, Hura Alihemmati, Seyedeh-Arefeh Safavi-Mirmahaleh, Marzieh Golshan, Roya Damircheli, Svetlana N. Eliseeva, Mehdi Salami-Kalajahi
Summary: The design and construction of energy storage systems, such as batteries and supercapacitors, heavily rely on electrolytes. Understanding electrolyte chemistry and ion transfer pathways is crucial for optimizing storage device design. This article explores the interplay between ions, solvents, salts, and the electrolyte matrix, providing insights into potential ion transport pathways. It discusses the impact of the matrix, solvent, and salt on complex formation, ion coordination chemistry, and ionic conductivity, enhancing the comprehension of fundamental aspects.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Nicholas Hillier, Sheng Yong, Stephen Beeby
Summary: The selection of electrolyte for supercapacitors is challenging, considering various factors such as voltage stability, physical properties, environmental concerns, and production processes. This study found that everyday items can be competitive as electrolytes for supercapacitors, potentially providing safe and abundant options for wearable applications with further refinement.
Article
Electrochemistry
Takayuki Yamamoto, Kazuhiko Matsumoto, Rika Hagiwara, Toshiyuki Nohira
Summary: This study investigates the charge-discharge behavior of copper metal as positive electrodes in different FHIL electrolytes. It is found that electrolytes with low CuF2 solubilities can enhance the cycleability of copper metal positive electrodes.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Materials Science, Composites
Bilal Ghafoor, Henri Stephan Schrekker, Jonder Morais, Sandro Campos Amico
Summary: Carbon fiber composites require strong fiber-matrix interaction for high performance. This study explores the use of ionic liquids for non-covalent surface modification of carbon fiber. The modified fibers showed improved surface morphology and increased adhesion with epoxy resin, leading to enhanced interfacial shear strength. The proposed surface modification technique has the potential to improve the performance of carbon fiber polymer composites.
COMPOSITE INTERFACES
(2022)
Article
Entomology
Graziele Milani Pessini, Henri Stephan Schrekker, Vinicius Demetrio da Silva, Rafaela Barbosa Pares, Luis Francisco Angeli Alves, Lucineia de Fatima Chasko Ribeiro, Flavio Augusto Vicente Seixas, Maria Aparecida Fernandez
Summary: The effects of a pyridinium salt and seven imidazolium salts on a fungus causing white muscardine in silkworms were evaluated. One of the imidazolium salts was found to be effective in controlling the disease and had no negative effects on silkworm larvae development.
ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA
(2022)
Review
Materials Science, Composites
Eduardo Fischer Kerche, Eduardo Fonseca, Henri Stephan Schrekker, Sandro Campos Amico
Summary: This article provides an overview of the use of ionic liquids (IL) as compatibilizers in epoxy-based composites and discusses their effects. The results show that IL can enhance the interfacial interactions between reinforcements and epoxy matrix, leading to improved mechanical and thermal performances of the composites. It is suggested that further research is needed to explore strategies for using low IL content and to investigate the relationship between filler structure and composite properties.
POLYMER COMPOSITES
(2022)
Article
Public, Environmental & Occupational Health
Denise Leal dos Santos, Beni Jequicene Mussengue Chauque, Veridiana Gomes Virginio, Virgilio Carmenia Cossa, Christina Pettan-Brewer, Henri Stephan Schrekker, Marilise Brittes Rott
Summary: This article discusses the importance of One Health approaches in relation to Naegleria fowleri. The study reveals that climate change plays a major role in the growth and dispersion of the pathogen, and addresses issues such as temperature changes, antimicrobial resistance, and the transmission of other microorganisms. It emphasizes the urgency of diagnostic methods, development of new drugs, and environmental control measures.
INTERNATIONAL JOURNAL OF HYGIENE AND ENVIRONMENTAL HEALTH
(2022)
Review
Chemistry, Multidisciplinary
Pedro Migowski, Pedro Lozano, Jairton Dupont
Summary: 1,3-Dialkyl imidazolium salts are versatile ionic liquids (ILs) that can function as solvents, supports, or modifiers for catalytic processes. They can modify the properties of catalysts and control the access of substrates and expulsion of products. The miscibility, hydrophobicity, ionicity, and basicity of ILs can be adjusted by choosing the appropriate alkyl side chain and anions, allowing fine-tuning of the catalytic system. ILs also offer the possibility of designing greener catalytic tools and various methods for product separation.
Article
Polymer Science
Eduardo Fischer Kerche, Agne Kairyte, Sylwia Czlonka, Vinicius Demetrio da Silva, Nicholas Alves Salles, Henri Stephan Schrekker, Sandro Campos Amico
Summary: In this study, four imidazolium-based ionic liquids were tested as compatibilizers for microcrystalline cellulose. The modified microcrystalline cellulose was used as reinforcements in epoxy resin to prepare biobased composites with enhanced performances. The imidazolium-based ionic liquids did not significantly modify the morphological and structural characteristics of the reinforcements, but improved the thermal stability, mechanical responses, and viscoelastic response of the composites.
Article
Immunology
Fernanda Giesel Baldissera, Tiago Fazolo, Matheus Brasil da Silva, Paulo Cesar de Santana Filho, Vinicius Demetrio da Silva, David Max Rivillo Perez, Joice Sandra Klitzke, Eduardo Giovanni de Oliveira Soares, Luiz Carlos Rodrigues Jr, Alessandra Peres, Eliane Dallegrave, Kely Campos Navegantes-Lima, Marta Chagas Monteiro, Henri Stephan Schrekker, Pedro Roosevelt Torres Romao
Summary: This study investigated the leishmanicidal activity of 24 imidazolium salts against Leishmania parasites, and found that 8 of them showed potential as drug candidates against the parasites and infected host cells.
FRONTIERS IN IMMUNOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Muhammad I. Qadir, Jairton Dupont
Summary: Ionic liquids (ILs) are potential materials for capturing and converting CO2 to energy-adducts. They create a confined space around catalysts, controlling the diffusion of reactants, intermediates, and products through their hydrophobicity and contact ion pairs. By combining ILs with semiconductors, the electronic properties of the catalysts can be modulated to facilitate CO2 activation and increase photoreduction.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Composites
Bilal Ghafoor, Umar Farooq, Henri Stephan Schrekker, Sandro Campos Amico
Summary: Hybrid composite laminates with enhanced properties were prepared by non-covalently modifying multiwall carbon nanotubes with an ionic liquid. The laminate containing 1 wt% of modified carbon nanotubes exhibited the best mechanical and thermomechanical properties.
JOURNAL OF COMPOSITE MATERIALS
(2023)
Article
Polymer Science
Clarissa Martins Leal Schrekker, Yuri Clemente Andrade Sokolovicz, Maria Grazia Raucci, Claudio Alberto Martins Leal, Luigi Ambrosio, Mario Lettieri Teixeira, Alexandre Meneghello Fuentefria, Henri Stephan Schrekker
Summary: Candida species have the ability to form biofilms on polymeric surfaces, which is related to human diseases. HDPE films containing imidazolium salts were prepared and showed reduced biofilm formation. The imidazolium salts did not show cytotoxic effects and demonstrated good biocompatibility. These films have potential as biomaterials to reduce the risk of fungal infections in medical devices.
Article
Chemistry, Multidisciplinary
Vinicius K. Tomazett, Gustavo Chacon, Graciane Marin, Marcus V. Castegnaro, Rafael P. das Chagas, Luciano M. Liao, Jairton Dupont, Muhammad I. Qadir
Summary: Chemical fixation of CO2 to epoxides is an efficient and environmentally friendly approach to produce cyclic carbonates. By using the n-butyl-3-methylimidazulim trichlorozincate (BMIm.ZnCl3) ionic liquid as catalyst, high conversion rates (56-95%) of different aromatic and aliphatic epoxides were achieved under ambient reaction conditions. The activity of the catalyst was further enhanced by supporting the IL on SiO2, resulting in a maximum conversion and yield (99%) of cyclic carbonates at higher reaction conditions. The reaction mechanism was found to involve strong hydrogen bonding between the epoxide oxygen and the C2-H of the imidazolium cation, with the ZnCl3 anion acting as a nucleophile to facilitate ring opening without dissociation.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Materials Science, Multidisciplinary
Marianna Mamusa, David Chelazzi, Michele Baglioni, Sergio Murgia, Emiliano Fratini, David Rivillo, Piet W. N. M. van Leeuwen, Henri S. Schrekker, Piero Baglioni
Summary: Solutions of weakly coordinating ionic liquids (ILs) in alkyl carbonates have attracted attention due to their green solvents properties, but the understanding of ILs' phase behavior and structure in organic polar solvents is lacking. This study investigates the interactions and nanoscale structure of a specific IL, [BMIm][BARF], in alkyl carbonate solvents. The results show that [BMIm][BARF] is mostly undissociated in these solvents and the presence of rod-like nanostructures in the IL/solvent mixtures. The study also reveals that the self-assembly of nano-sized structures is hindered by slower ion diffusion in alkyl carbonates with lower dielectric constants. The findings have implications in various fields including batteries, catalysis, extraction, and bio-applications.
APPLIED MATERIALS TODAY
(2023)
Article
Entomology
Harry Luiz Pilz-Junior, Stephanie Jansen, Carolina Maica Silva, Juliana Fank Gomes, Debora Rech Volz, Alessandra Bittencourt de Lemos, Wellington Junior da Silva, Tarcisio Freitas Milagres, Josiane Somariva Prophiro, Jonas Schmidt-Chanasit, Ana Luiza Ziulkoski, Eliane Dallegrave, Henri Stephan Schrekker, Gertrudes Corcao, Onilda Santos da Silva
Summary: The study investigated the toxic potential of two imidazolium salts on Culex quinquefasciatus larvae and their effects on non-target organisms and the environment. The results showed that one of the salts, C(16)MImMeS, exhibited excellent larvicidal activity but also negatively impacted germination and growth of Lactuca sativa. Both imidazolium salts showed cytotoxicity, with C(16)MImMeS being more toxic to mouse lung fibroblasts and human keratinocytes. The results also indicated that C(18)MImCl had a relatively low toxicity to Wistar rats, suggesting its safe application in non-target organisms. Overall, this study provides important information for the development of mosquito control formulations.
JOURNAL OF PEST SCIENCE
(2023)
Article
Chemistry, Physical
Muhammad I. Qadir, Marcus V. Castegnaro, Felipe F. Selau, Daniel L. Baptista, Gustavo Chacon, Renato B. Pontes, Allan M. Lisboa, Dario Eberhardt, Jairton Dupont
Summary: Reducing atmospheric CO2 is a major challenge due to increased industrial activities and its contribution to global warming. One effective approach is converting CO2 into C1 feedstocks like formic acid (FA). Ruthenium clusters and nanoparticles prepared by magnetron sputtering in different supported ionic liquid phases (SILPs) showed high efficiency in producing free FA. DFT calculations supported the hydrogenation of HCO3* to FA as the mechanistic approach.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Applied
Eduardo Fischer Kerche, Roberta Motta Neves, Heitor Luiz Ornaghi, Ademir Jose Zattera, Henri Stephan Schrekker
Summary: The surface of commercial microcrystalline cellulose (MCC) was modified using ethanolic ionic liquid (IL) solutions with different concentrations of 1-n-butyl-3-methylimidazolium chloride (C(4)MImCl). The addition of 4 wt.% C(4)MImCl improved the thermal stability of MCC without detrimental effects on its morphology.
CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS
(2022)
Article
Energy & Fuels
Shitong Fang, Houfan Du, Tao Yan, Keyu Chen, Zhiyuan Li, Xiaoqing Ma, Zhihui Lai, Shengxi Zhou
Summary: This paper proposes a new type of nonlinear VIV energy harvester (ANVEH) that compensates for the decrease in peak energy output at low wind speeds by introducing an auxiliary structure. Theoretical and experimental results show that ANVEH performs better than traditional nonlinear VIV energy harvesters under various system parameter variations.
Article
Energy & Fuels
Wei Jiang, Shuo Zhang, Teng Wang, Yufei Zhang, Aimin Sha, Jingjing Xiao, Dongdong Yuan
Summary: A standardized method was developed to evaluate the availability of solar energy resources in road areas, which combined the Analytic Hierarchy Process (AHP) and the Geographic Information System (GIS). By analyzing critical factors and using a multi-indicator evaluation method, the method accurately evaluated the utilization of solar energy resources and guided the optimal location selection for road photovoltaic (PV) projects. The results provided guidance for the application of road PV projects and site selection for route corridors worldwide, promoting the integration of transportation and energy.
Article
Energy & Fuels
Chang Liu, Jacob A. Wrubel, Elliot Padgett, Guido Bender
Summary: The study investigates the effects of coating defects on the performance of the anode porous transport layer (PTL) in water electrolyzers. The results show that an increasing fraction of uncoated regions on the PTL leads to decreased cell performance, with continuous uncoated regions having a more severe impact compared to multiple thin uncoated strips.
Article
Energy & Fuels
Marcos Tostado-Veliz, Xiaolong Jin, Rohit Bhakar, Francisco Jurado
Summary: In this paper, a coordinated charging price mechanism for clusters of parking lots is proposed. The research shows that enabling vehicle-to-grid characteristics can bring significant economic benefits for users and the cluster coordinator, and vehicle-to-grid impacts noticeably on the risk-averse character of the uncertainty-aware strategies. The developed pricing mechanism can reduce the cost for users, avoiding to directly translate the energy cost to charging points.
Article
Energy & Fuels
Duan Kang
Summary: Building an energy superpower is a key strategy for China and a long-term goal for other countries. This study proposes an evaluation system and index for measuring energy superpower, and finds that China has significantly improved its ranking over the past 21 years, surpassing other countries.
Article
Energy & Fuels
Fucheng Deng, Yifei Wang, Xiaosen Li, Gang Li, Yi Wang, Bin Huang
Summary: This study investigated the synergistic blockage mechanism of sand and hydrate in gravel filling layer and the evolution of permeability in the layer. Experimental models and modified permeability models were established to analyze the effects of sand particles and hydrate formation on permeability. The study provided valuable insights for the safe and efficient exploitation of hydrate reservoirs.
Article
Energy & Fuels
Hao Wang, Xiwen Chen, Natan Vital, Edward Duffy, Abolfazl Razi
Summary: This study proposes a HVAC energy optimization model based on deep reinforcement learning algorithm. It achieves 37% energy savings and ensures thermal comfort for open office buildings. The model has a low complexity, uses a few controllable factors, and has a short training time with good generalizability.
Article
Energy & Fuels
Moyue Cong, Yongzhuo Gao, Weidong Wang, Long He, Xiwang Mao, Yi Long, Wei Dong
Summary: This study introduces a multi-strategy ultra-wideband energy harvesting device that achieves high power output without the need for external power input. By utilizing asymmetry, stagger array, magnetic coupling, and nonlinearity strategies, the device maintains a stable output voltage and high power density output at non-resonant frequencies. Temperature and humidity monitoring are performed using Bluetooth sensors to adaptively assess the device.
Article
Energy & Fuels
Tianshu Dong, Xiudong Duan, Yuanyuan Huang, Danji Huang, Yingdong Luo, Ziyu Liu, Xiaomeng Ai, Jiakun Fang, Chaolong Song
Summary: Electrochemical water splitting is crucial for hydrogen production, and improving the hydrogen separation rate from the electrode is essential for enhancing water electrolyzer performance. However, issues such as air bubble adhesion to the electrode plate hinder the process. Therefore, a methodology to investigate the two-phase flow within the electrolyzer is in high demand. This study proposes using a microfluidic system as a simulator for the electrolyzer and optimizing the two-phase flow by manipulating the micro-structure of the flow.
Article
Energy & Fuels
Shuo Han, Yifan Yuan, Mengjiao He, Ziwen Zhao, Beibei Xu, Diyi Chen, Jakub Jurasz
Summary: Giving full play to the flexibility of hydropower and integrating more variable renewable energy is of great significance for accelerating the transformation of China's power energy system. This study proposes a novel day-ahead scheduling model that considers the flexibility limited by irregular vibration zones (VZs) and the probability of flexibility shortage in a hydropower-variable renewable energy hybrid generation system. The model is applied to a real hydropower station and effectively improves the flexibility supply capacity of hydropower, especially during heavy load demand in flood season.
Article
Energy & Fuels
Zhen Wang, Kangqi Fan, Shizhong Zhao, Shuxin Wu, Xuan Zhang, Kangjia Zhai, Zhiqi Li, Hua He
Summary: This study developed a high-performance rotary energy harvester (AI-REH) inspired by archery, which efficiently accumulates and releases ultralow-frequency vibration energy. By utilizing a magnetic coupling strategy and an accumulator spring, the AI-REH achieves significantly accelerated rotor speeds and enhanced electric outputs.
Article
Energy & Fuels
Yi Yang, Qianyi Xing, Kang Wang, Caihong Li, Jianzhou Wang, Xiaojia Huang
Summary: In this study, a novel hybrid Quantile Regression (QR) model is proposed for Probabilistic Load Forecasting (PLF). The model integrates causal dilated convolution, residual connection, and Bidirectional Long Short-Term Memory (BiLSTM) for multi-scale feature extraction. In addition, a Combined Probabilistic Load Forecasting System (CPLFS) is proposed to overcome the inherent flaws of relying on a single model. Simulation results show that the hybrid QR outperforms traditional models and CPLFS exceeds the best benchmarks in terms of prediction accuracy and stability.
Article
Energy & Fuels
Wen-Jiang Zou, Young-Bae Kim, Seunghun Jung
Summary: This paper proposes a dynamic prediction model for capacity fade in vanadium redox flow batteries (VRFBs). The model accurately predicts changes in electrolyte volume and capacity fade, enhancing the competitiveness of VRFBs in energy storage applications.
Article
Energy & Fuels
Yuechao Ma, Shengtie Wang, Guangchen Liu, Guizhen Tian, Jianwei Zhang, Ruiming Liu
Summary: This paper focuses on the balance of state of charge (SOC) among multiple battery energy storage units (MBESUs) and bus voltage balance in an islanded bipolar DC microgrid. A SOC automatic balancing strategy is proposed considering the energy flow relationship and utilizing the adaptive virtual resistance algorithm. The simulation results demonstrate the effectiveness of the proposed strategy in achieving SOC balancing and decreasing bus voltage unbalance.
Article
Energy & Fuels
Raad Z. Homod, Basil Sh. Munahi, Hayder Ibrahim Mohammed, Musatafa Abbas Abbood Albadr, Aissa Abderrahmane, Jasim M. Mahdi, Mohamed Bechir Ben Hamida, Bilal Naji Alhasnawi, A. S. Albahri, Hussein Togun, Umar F. Alqsair, Zaher Mundher Yaseen
Summary: In this study, the control problem of the multiple-boiler system (MBS) is formulated as a dynamic Markov decision process and a deep clustering reinforcement learning approach is applied to obtain the optimal control policy. The proposed strategy, based on bang-bang action, shows superior response and achieves more than 32% energy saving compared to conventional fixed parameter controllers under dynamic indoor/outdoor actual conditions.
