Journal of energy storage最新文献

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Copper incorporation induced oxygen vacancy MoO3 anode and Zn dendrite inhibitor for high performance aqueous zinc ion batteries
IF 8.9 2区 工程技术
Journal of energy storage Pub Date : 2025-03-24 DOI: 10.1016/j.est.2025.116336
Zhuo Li , Lin Gao , Chuankun Zhang , Fengguang Li
{"title":"Copper incorporation induced oxygen vacancy MoO3 anode and Zn dendrite inhibitor for high performance aqueous zinc ion batteries","authors":"Zhuo Li ,&nbsp;Lin Gao ,&nbsp;Chuankun Zhang ,&nbsp;Fengguang Li","doi":"10.1016/j.est.2025.116336","DOIUrl":"10.1016/j.est.2025.116336","url":null,"abstract":"<div><div>Aqueous Zn-ion batteries (AZIBs) have captured prominent focus as auspicious energy storage systems. However, challenges such as dendrites formation and corrosion in metallic Zn anodes greatly stimulate the requirement for alternative intercalation-type anode materials. Herein, we envisaged a robust Cu doping MoO<sub>3</sub> (Cu-MoO<sub>3</sub>) anode for AZIBs without Zn dendrites growth. This Cu doping strategy modifies the electron spin configurations of Mo atoms, enhancing Zn<sup>2+</sup> storage capability. In addition, the Cu-induced oxygen vacancies largely advance the reaction kinetics and improve capacity. The resulting Zn//Cu-MoO<sub>3</sub> battery benefits from amended electrical conduction and accelerated Zn<sup>2+</sup> diffusion rates, achieving an impressive capacity of 212.8 mAh g<sup>−1</sup> after 100 cycles. Furthermore, the Zn//Cu-MoO<sub>3</sub> battery maintains a reversible capacity of 88.1 mAh g<sup>−1</sup> over 1000 cycles and enables a high energy density of 90.1 Wh kg<sup>−1</sup> when paired with a Zn<sub>x</sub>MnO<sub>2</sub> cathode. This study offers an innovative tactic to ameliorate the electrochemical behavior of Mo based materials, offering a pathway for the development of next-generation intercalation-type anode materials in AZIBs.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116336"},"PeriodicalIF":8.9,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Harnessing biochar based metal halide (KCuCl3) for highly efficient energy storage application
IF 8.9 2区 工程技术
Journal of energy storage Pub Date : 2025-03-24 DOI: 10.1016/j.est.2025.116253
Muhammad Ishfaq Ghori , Dur e Najaf Iqbal , Khadija Bibi , Syed Imran Abbas Shah , Kashif Younas Butt , Muhammad Fahad Ehsan , Aboud Ahmed Awadh Bahajjaj , Muhammad Naeem Ashiq
{"title":"Harnessing biochar based metal halide (KCuCl3) for highly efficient energy storage application","authors":"Muhammad Ishfaq Ghori ,&nbsp;Dur e Najaf Iqbal ,&nbsp;Khadija Bibi ,&nbsp;Syed Imran Abbas Shah ,&nbsp;Kashif Younas Butt ,&nbsp;Muhammad Fahad Ehsan ,&nbsp;Aboud Ahmed Awadh Bahajjaj ,&nbsp;Muhammad Naeem Ashiq","doi":"10.1016/j.est.2025.116253","DOIUrl":"10.1016/j.est.2025.116253","url":null,"abstract":"<div><div>Supercapacitors, as advanced energy storage systems, are pivotal in addressing modern energy demands, offering rapid energy storage and delivery with high efficiency. In this study, we present a novel, cost-effective nanocomposite electrode material combining porous biochar with KCuCl<sub>3</sub> metal halide perovskite, designed to enhance capacitive performance through superior redox potential. This composite demonstrates outstanding electrochemical properties in 2 M KOH, achieving a capacitance of 1333.08 F/g, a power density of 2.522 kW/kg, and an energy density of 109.11 kWh/kg. With a high BET specific surface area of 14.3 m<sup>2</sup>/g, biochar-KCuCl<sub>3</sub> material provides extensive active sites, facilitating efficient ion diffusion and charge storage. The composite exhibits a C<sub>dl</sub> of 24.15 μF/cm<sup>2</sup>, a low charge transfer resistance (Rct) of 0.0387 Ω, and an electrochemical surface area of 261.2 cm<sup>2</sup>, underscoring its high-performance capabilities. The biochar matrix, noted for its large surface area and excellent adsorption properties, optimizes ion accessibility, making this biochar-KCuCl<sub>3</sub> nanocomposite a promising candidate for sustainable, high-efficiency supercapacitors poised to revolutionize energy storage solutions.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116253"},"PeriodicalIF":8.9,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Energy storage planning for enhanced resilience of power systems against wildfires and heatwaves
IF 8.9 2区 工程技术
Journal of energy storage Pub Date : 2025-03-24 DOI: 10.1016/j.est.2025.116074
Konstantinos Oikonomou, Patrick R. Maloney, Saptarshi Bhattacharya, Jesse T. Holzer, Osten Anderson, Xinda Ke, Jan Westman, Casey D. Burleyson, Sohom Datta, Jeremy B. Twitchell, Di Wu
{"title":"Energy storage planning for enhanced resilience of power systems against wildfires and heatwaves","authors":"Konstantinos Oikonomou,&nbsp;Patrick R. Maloney,&nbsp;Saptarshi Bhattacharya,&nbsp;Jesse T. Holzer,&nbsp;Osten Anderson,&nbsp;Xinda Ke,&nbsp;Jan Westman,&nbsp;Casey D. Burleyson,&nbsp;Sohom Datta,&nbsp;Jeremy B. Twitchell,&nbsp;Di Wu","doi":"10.1016/j.est.2025.116074","DOIUrl":"10.1016/j.est.2025.116074","url":null,"abstract":"<div><div>Extreme weather events pose significant risks to power grid stability due to their severe consequences and potential for widespread failures. Energy storage systems hold great potential for enhancing grid resilience against such events by providing reliable power during peak demand periods. However, accurately quantifying the size, location, and investment costs of new energy storage assets is a complex task, as energy storage planning decisions depend on the investment choices of other generation technologies and the integration of new transmission projects. This paper presents a novel capacity expansion planning framework that simultaneously optimizes investments in energy storage, generation, and transmission, determining their optimal size, location, and type, while incorporating extreme weather events into long-term planning. More specifically, our stress-event-informed planning framework integrates the impact of heatwaves and wildfires into the planning process, identifying least-cost investment solutions that comply with policy goals and enhance grid resilience. The proposed framework employs machine-learning-based modeling to project heatwave-induced loads and performance-based risk assessment to evaluate wildfire-driven transmission line derates. Using industry-standard datasets to accurately represent the transmission topology of the Western Interconnection (WI) system, the proposed framework is applied to the WI 40-zone system, with investment decisions reported for the years 2030, 2035, and 2040. Simulation results reveal that with just a 10% increase in investment costs, resilience against extreme events can be significantly improved, with investment decisions heavily favoring energy storage, particularly 4-hour energy storage systems.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116074"},"PeriodicalIF":8.9,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum to “Interlayer spaced hybrid WS2/NiCo(PO4)3/MXenes nanosheets for highly efficient asymmetric supercapacitors” [J. Energy Storage, 115, 2025, 115957]
IF 8.9 2区 工程技术
Journal of energy storage Pub Date : 2025-03-24 DOI: 10.1016/j.est.2025.116348
Palanisamy Rajkumar , Kasinathan Kasirajan , Vediyappan Thirumal , Akshaya Subhramaniyan Rasappan , Abdullah N. Alodhayb , Khalid E. Alzahrani , Saravanan Pandiaraj , Hong Kyoon Choi , Kisoo Yoo , Jinho Kim
{"title":"Corrigendum to “Interlayer spaced hybrid WS2/NiCo(PO4)3/MXenes nanosheets for highly efficient asymmetric supercapacitors” [J. Energy Storage, 115, 2025, 115957]","authors":"Palanisamy Rajkumar ,&nbsp;Kasinathan Kasirajan ,&nbsp;Vediyappan Thirumal ,&nbsp;Akshaya Subhramaniyan Rasappan ,&nbsp;Abdullah N. Alodhayb ,&nbsp;Khalid E. Alzahrani ,&nbsp;Saravanan Pandiaraj ,&nbsp;Hong Kyoon Choi ,&nbsp;Kisoo Yoo ,&nbsp;Jinho Kim","doi":"10.1016/j.est.2025.116348","DOIUrl":"10.1016/j.est.2025.116348","url":null,"abstract":"","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"117 ","pages":"Article 116348"},"PeriodicalIF":8.9,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Density functional theory study of light metal (Li/Na/Ca) functionalized borophosphene for reversible hydrogen storage
IF 8.9 2区 工程技术
Journal of energy storage Pub Date : 2025-03-24 DOI: 10.1016/j.est.2025.116165
Sandip Haldar
{"title":"Density functional theory study of light metal (Li/Na/Ca) functionalized borophosphene for reversible hydrogen storage","authors":"Sandip Haldar","doi":"10.1016/j.est.2025.116165","DOIUrl":"10.1016/j.est.2025.116165","url":null,"abstract":"<div><div>Borophosphene was investigated for hydrogen storage performance by density functional theory (DFT) calculations. At first, the parameters of the borophosphene structure were calculated and validated with literature. Owing to the poor hydrogen storage performance of pristine borophosphene, decoration by Li, Na and Ca was adopted. DFT results showed that decoration enhanced the binding energy by an order of magnitude from −0.047 eV/<span><math><msub><mrow><mi>H</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span> over pristine material to −0.20–−0.42 eV/<span><math><msub><mrow><mi>H</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span> over decorated ones. PDOS and Bader charge analysis elucidated the role of adatom decoration in charge transfer and better binding. Up to 10, 12 and 20 <span><math><msub><mrow><mi>H</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span> molecules could be adsorbed over a single Li, Na and Ca adatom, respectively, in supercell of 32 atoms. The desorption temperature was calculated from the binding energy using von’t Hoff equation. A complete discharge of the stored molecules from decorated borophosphene could be realized in the temperature range of 125–531 K at 1 atm pressure. Further, <span><math><msub><mrow><mi>H</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span> storage by functionalization at multiple sites of the substrate was also performed to evaluate the theoretical gravimetric density. With Li and Na overloading, gravimetric densities of 6.22%, and 5.34% were obtained. However, the reversible hydrogen storage for the best case of Li decorated borophosphene under practical conditions was obtained as 2.9%. The metal–metal clustering aspect was elucidated using Nudge Elastic Band (NEB) calculations. NEB results showed that inter-site energy barriers of the adatoms were larger than their thermal energy by an order indicating lower possibility of clustering.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116165"},"PeriodicalIF":8.9,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Melting and energy storage performance enhancement of rectangular cavity with metal foam by nano-PCM and recessed/protruding dimpled fin wall
IF 8.9 2区 工程技术
Journal of energy storage Pub Date : 2025-03-24 DOI: 10.1016/j.est.2025.116327
Emrehan Gürsoy
{"title":"Melting and energy storage performance enhancement of rectangular cavity with metal foam by nano-PCM and recessed/protruding dimpled fin wall","authors":"Emrehan Gürsoy","doi":"10.1016/j.est.2025.116327","DOIUrl":"10.1016/j.est.2025.116327","url":null,"abstract":"&lt;div&gt;&lt;div&gt;In this study, the melting and energy storage performance of a rectangular Latent Heat Thermal Energy Storage (LHTES) system containing a single wall recessed/protruding structure filled with fully metal foam (MF) was numerically analyzed under time-dependent natural convection conditions. A phase change material (PCM) enriched with Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt; nanoparticles at &lt;em&gt;φ&lt;/em&gt;&lt;sub&gt;&lt;em&gt;vol.&lt;/em&gt;&lt;/sub&gt;=1.0 and 5.0% volumetric concentrations was used in the system. Three different dimpled fins (DFs) geometries (spherical, square, and elliptical) were integrated into the recessed/protruding wall. This wall was kept at a constant temperature of &lt;em&gt;T&lt;/em&gt;&lt;sub&gt;&lt;em&gt;wall&lt;/em&gt;&lt;/sub&gt;=350 K, which exceeds the melting point of PCM, to ensure phase change. The governing equations were solved using the Brinkman-Forchheimer extended Darcy model, which includes the assumption of local thermal equilibrium (LTE) between PCM and MF. A numerical model based on the finite volume method (FVM) was developed and the enthalpy-porosity approach was used to analyze the melting process. A detailed comparative analysis of the performance improvement applications was performed within their categories and among themselves. The results were evaluated using the graphs and contours of the liquid fraction (&lt;em&gt;β&lt;/em&gt;), temperature distribution, streamlines, Nusselt number (&lt;em&gt;Nu&lt;/em&gt;), and energy storage parameters. It was observed that the incorporation of nano-PCM and DF significantly accelerated the melting process. The fastest melting was achieved using &lt;em&gt;φ&lt;/em&gt;&lt;sub&gt;&lt;em&gt;vol.&lt;/em&gt;&lt;/sub&gt;=5.0% and square DF. In particular, Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt; at &lt;em&gt;φ&lt;/em&gt;&lt;sub&gt;&lt;em&gt;vol.&lt;/em&gt;&lt;/sub&gt;=5.0% reduced the melting time by 4.0% due to providing a significant increment in thermal conductivity, while square DF led to a 21.0% reduction. However, increased thermal conductivity had an adverse effect on the time-dependent average &lt;em&gt;Nu&lt;/em&gt;. It was further noted that the rise in &lt;em&gt;φ&lt;/em&gt;&lt;sub&gt;&lt;em&gt;vol.&lt;/em&gt;&lt;/sub&gt; within the PCM negatively impacted the stored energy. At the final stage of the melting process (&lt;em&gt;t&lt;/em&gt;=750s), the PCM retained 5748.3 kJ.m&lt;sup&gt;−1&lt;/sup&gt; of energy, which represented a 0.20% and 1.02% increase compared to the nano-PCM with &lt;em&gt;φ&lt;/em&gt;&lt;sub&gt;&lt;em&gt;vol.&lt;/em&gt;&lt;/sub&gt;=1.0% and 5.0%, respectively. Moreover, the geometry of the DFs considerably influenced the energy storage capacity, with square DFs showing an 3.20% improvement compared to finless configurations. In comparison, the spherical and elliptical DFs demonstrated increases of 2.71% and 1.37%, respectively. When applying &lt;em&gt;φ&lt;/em&gt;&lt;sub&gt;&lt;em&gt;vol.&lt;/em&gt;&lt;/sub&gt;=5.0% nano-PCM in square DF LHTES, the melting time was reduced by 24.5% compared to the finless case including PCM. However, the square DF case with PCM achieved the highest energy level among all configurations, reaching 5932.4 kJ.m&lt;sup&gt;−1&lt;/sup&gt;. This value represents a 3.20% increase over the finless PCM and a 3.01% increase over the sq","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116327"},"PeriodicalIF":8.9,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enabling prosumers in energy transactive environment with hybridisation of energy storage: A review
IF 8.9 2区 工程技术
Journal of energy storage Pub Date : 2025-03-24 DOI: 10.1016/j.est.2025.116221
Debdeep Mukherjee , Nirmalendu Biswas , Niladri Chakraborty
{"title":"Enabling prosumers in energy transactive environment with hybridisation of energy storage: A review","authors":"Debdeep Mukherjee ,&nbsp;Nirmalendu Biswas ,&nbsp;Niladri Chakraborty","doi":"10.1016/j.est.2025.116221","DOIUrl":"10.1016/j.est.2025.116221","url":null,"abstract":"<div><div>The rapid transition towards renewable energy is driven by sustainable energy goals, technological advancements, policy changes, and various economic and psychological factors. Prosumers—those who both produce and consume energy—are becoming influential in the energy sector and can impact a nation's socioeconomic status. By trading surplus energy with other consumers, prosumers play a vital role in the energy market. To address the intermittency of renewable energy sources, energy storage devices are essential. Hybrid energy storage systems, which combine high energy and high power storage capabilities, offer benefits such as extended lifetime, cost perspectives and additional grid services. Hybridisation of small-scale energy storage techniques supporting the supply-demand balance and other grid ancillary services are developing as attractive choices. This review paper addresses the research gap in understanding the role of prosumers and their requirements for energy storage, including hybridised versions. It explores the business models of prosumers and identifies key impact factors. The novelty of this review lies in its comprehensive summary of prosumers, their business directions, and especially various small-scale energy storage options supporting prosumers. This work provides valuable insights for the future development of hybrid energy storage and prosumers within the futuristic energy transactive frameworks.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116221"},"PeriodicalIF":8.9,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced high-temperature energy storage performance of PEI-based composite dielectrics via ultra-low content of SiC@SiO2 nanoparticles
IF 8.9 2区 工程技术
Journal of energy storage Pub Date : 2025-03-24 DOI: 10.1016/j.est.2025.116401
Siyu Zhang, Tianran Zhang, Mengfan Song, Siyuan Li, Lixue Zhang, Jiping Wang
{"title":"Enhanced high-temperature energy storage performance of PEI-based composite dielectrics via ultra-low content of SiC@SiO2 nanoparticles","authors":"Siyu Zhang,&nbsp;Tianran Zhang,&nbsp;Mengfan Song,&nbsp;Siyuan Li,&nbsp;Lixue Zhang,&nbsp;Jiping Wang","doi":"10.1016/j.est.2025.116401","DOIUrl":"10.1016/j.est.2025.116401","url":null,"abstract":"<div><div>The advancement of organic/inorganic composite materials is essential for ensuring the reliable performance of polymer-based dielectrics in high-temperature electronic devices. In this paper, a core-shell structured filler, SiC@SiO<sub>2</sub>, was prepared by coating a layer of SiO<sub>2</sub> on the surface of SiC using a simple high-temperature sintering method, which realized the synergistic enhancement of the breakdown field strength, dielectric constant and polarization response of the PEI matrix at 150 °C. The composite film prepared with the addition of 0.30 wt% SiC@SiO<sub>2</sub> displays a discharge energy density of 5.26 J cm<sup>−3</sup> and maintained an efficiency of over 95 % at 150 °C and at the electric field of 500 MV/m. More importantly, we quantitatively characterized the interfacial thickness between the nanoparticle and PEI based on the Porod's theory by using SAXS, and analyzed the mechanism of the overall polarization response of the inorganic filler-enhanced composite films. In addition to determining the <em>E</em><sub>a</sub> and the <em>E</em><sub>g</sub> of the composite films, we also characterized the surface fractal dimension (<em>D</em><sub>s</sub>) and mass fractal dimension (<em>D</em><sub>m</sub>) according to the SAXS results, and systematically analyzed the mechanism of the core-shell packing to improve the breakdown strength. This work provides an effective modification strategy for optimizing the PEI-based composite films, and provides valuable theoretical insights into revealing the mechanism of energy storage performance at elevated temperature.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116401"},"PeriodicalIF":8.9,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Flexible energy storage estimation for electric buses: A hybrid data-driven and physical model-driven approach
IF 8.9 2区 工程技术
Journal of energy storage Pub Date : 2025-03-24 DOI: 10.1016/j.est.2025.116230
Jinkai Shi, Weige Zhang, Yan Bao, Senyong Fan
{"title":"Flexible energy storage estimation for electric buses: A hybrid data-driven and physical model-driven approach","authors":"Jinkai Shi,&nbsp;Weige Zhang,&nbsp;Yan Bao,&nbsp;Senyong Fan","doi":"10.1016/j.est.2025.116230","DOIUrl":"10.1016/j.est.2025.116230","url":null,"abstract":"<div><div>The large-scale deployment of electric buses contributes to the development of low-carbon transportation systems and carbon neutrality strategies. Effectively predicting the available energy of electric buses and aggregating flexible energy storage plays a crucial role in the operation and scheduling of power grids. This paper proposes a hybrid-driven estimation method for flexible energy storage of electric buses. First, an adaptive graph convolutional network is introduced to predict the arrival times and passenger crowdedness levels for each bus line. This data-driven approach captures the spatiotemporal dynamics and various evolution patterns of different routes, enhancing the prediction accuracy. Subsequently, a physical model-driven approach based on vehicle dynamics equations and first-order thermodynamic equivalents is proposed to forecast the energy consumption of the trip. This model represents energy flow and potential physical processes, providing interpretable insights into the impact of various parameters on traction and air conditioning energy consumption. In addition, we design and conduct the battery test profile to investigate the degradation patterns of batteries under different temperatures. Finally, based on the battery available energy, we develop a power and energy boundary model for electric buses to characterize flexible charging loads. Furthermore, an approach is proposed to estimate the flexible energy storage of a large number of electric buses. Case studies show that the proposed graph convolutional network outperforms baseline models, achieving an MAE of 16.33 s in arrival times. The aggregated schedulable energy storage varies by as much as 27.65% under different temperature conditions.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116230"},"PeriodicalIF":8.9,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Efficient electrochemical performance of V2O5/SrO nanocomposite electrode for supercapacitor application
IF 8.9 2区 工程技术
Journal of energy storage Pub Date : 2025-03-23 DOI: 10.1016/j.est.2025.116318
P. Vijayakumar , N. Sethupathi , P. Mahalingam , P. Sivakumar
{"title":"Efficient electrochemical performance of V2O5/SrO nanocomposite electrode for supercapacitor application","authors":"P. Vijayakumar ,&nbsp;N. Sethupathi ,&nbsp;P. Mahalingam ,&nbsp;P. Sivakumar","doi":"10.1016/j.est.2025.116318","DOIUrl":"10.1016/j.est.2025.116318","url":null,"abstract":"<div><div>A series of V<sub>2</sub>O<sub>5</sub>-SrO based nanocomposites introduced as a high-performing electrode material for supercapacitor applications. In this work, V<sub>2</sub>O<sub>5</sub>-SrO nanocomposites prepared through a simple hydrothermal process followed by thermal annealing method. The structural and morphological, elemental composition and functional groups of the composites examined through X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy and infrared spectroscopy. As the capacitive behaviour of V<sub>2</sub>O<sub>5</sub>-SrO composite electrode achieved, the specific capacitance of 931 F/g along with 90 % stability retention after 3000 cycles. Interestingly, the enhancing electrochemical properties mainly attributed to the emergence of the synergetic effect between the composite materials. These enhanced electrochemical characteristics of V<sub>2</sub>O<sub>5</sub>-SrO composite electrode promoted as a positive material for future electronic applications.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116318"},"PeriodicalIF":8.9,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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