Journal of energy storage最新文献

{"title":"Recent advances in rare earth doped metal oxide based nanomaterials for supercapacitors","authors":"Prachi Satabdi Nanda ,&nbsp;Anurag Gautam ,&nbsp;Arun Kumar Singh ,&nbsp;Ram Sevak Singh","doi":"10.1016/j.est.2025.117431","DOIUrl":"10.1016/j.est.2025.117431","url":null,"abstract":"<div><div>Greater theoretical specific capacity, nontoxicity, cost-effectiveness, and ease of fabrication of metal oxide nanomaterials make them attractive materials globally for devices used to store energy, like batteries and supercapacitors. Metal oxide nanomaterials-based supercapacitors, commonly known as pseudocapacitors, have been explored exponentially over the past several years. However, these pseudocapacitor materials face issues like low conductivity, limited surface area, and inferior electrochemical activity. Rare earth doping is a powerful approach to generate localized electronic states, promote chemical activity, and improve electronic conductivity and chemical stability in metal oxide nanomaterials, which enhance electrolyte ion diffusion and charge transport in supercapacitors. In this review, a systematic critical review of rare earth doped various metal oxide nanomaterials has been presented. Beginning with an overview of the fundamentals of supercapacitors, different synthesis strategies, the importance and impact of adding rare earth dopants on the crystal structure, surface structure, chemical reactivity and their correlation with electrochemical activity have been discussed thoroughly. We find that the electrochemical performance of metal oxide nanomaterials can be enhanced by doping with appropriate rare earth element or rare earth element oxide hybrid. However, most of the studies are focussed on aqueous supercapacitors in three-electrode configurations and reports on practical solid-state supercapacitor devices are limited. Moreover, theoretical works in support of experimental observations are rarely conducted. Our review of the most recent results including comparative electrochemical performance like capacitance, cyclic stability, etc. of various rare earth doped metal oxide nanomaterials suggests that extensive research in this direction is needed to address the current limitations and develop more practical supercapacitor devices.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117431"},"PeriodicalIF":8.9,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321250","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}

{"title":"Effects of cerium content on the structure and hydrogen-storage properties of the A2B7-type Lanthanum–Cerium–Yttrium–Nickel system","authors":"Xiangyang He,&nbsp;Li Wang,&nbsp;Baoquan Li,&nbsp;Shujuan Zhou,&nbsp;Xu Zhang,&nbsp;Yuyuan Zhao,&nbsp;Jin Xu,&nbsp;Jin Li,&nbsp;Huizhong Yan","doi":"10.1016/j.est.2025.117416","DOIUrl":"10.1016/j.est.2025.117416","url":null,"abstract":"<div><div>A₂B₇-type intermetallic compounds based on La–Y–Ni are promising H₂-storage materials and have garnered widespread interest owing to their excellent properties. Herein, we report a systematic study of the structures and H₂-storage properties of La_{2–<em>x</em>}Ce_<em>x</em>Y₄Ni₂₁ (<em>x</em> = 0.5, 1, 1.5, and 2). All the fabricated alloys contain only Ce₂Ni₇ and Gd₂Co₇, and Ce atoms simultaneously and equally occupy the A₂B₄ and AB₅ subunits of these two phases. With an increase in the Ce content, the gaseous H₂-storage capacities of the alloys decrease, whereas the H₂ absorption/desorption plateau pressures increase. The volume of the A₂B₄ subunit associated with the low plateau decreases more than that of the AB₅ subunit related to the high plateau, leading to the elevation of the low plateau such that it matches the high plateau. Consequently, the double plateau transforms to a single plateau of the alloys. Although the maximum discharge capacities and cycling stabilities of the Ce-rich alloys are poor, their high-rate discharge (<em>HRD</em>) capabilities are high, specifically <em>HRD</em>₃₀₀₀ of La_0.5Ce_1.5Y₄Ni₂₁ can reach 66.97 %. Moreover, although Ce addition inhibits the amorphization of the alloys, it exacerbates their pulverization with severe oxidation/corrosion during cycling, resulting in rapid capacity decay. We believe that our findings will stimulate new ideas for improving the H₂-storage properties of La–Y–Ni-based alloys via Ce introduction.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117416"},"PeriodicalIF":8.9,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321248","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}

{"title":"Preparation of nanostructured silicon by low-temperature aluminothermic reduction of clay minerals as anode material for high-performance lithium-ion batteries","authors":"Ding Shen,&nbsp;Jianqiang Niu,&nbsp;Zhaoqi Ren,&nbsp;Ran Zhang,&nbsp;Dong Xia,&nbsp;Youzhi Yang,&nbsp;Wei Dong,&nbsp;Shaobin Yang","doi":"10.1016/j.est.2025.117493","DOIUrl":"10.1016/j.est.2025.117493","url":null,"abstract":"<div><div>Silicon has been widely recognized as one of the most attractive anode candidates in the next generation of lithium-ion batteries due to its excellent theoretical specific capacity, low operating voltage, and extensive sources. Herein, one-dimensional tubular silicon and two-dimensional lamellar silicon with porous structures have been successfully synthesized from low-cost and resource-rich clay minerals (halloysite, kaolin, chlorite and dickite) as raw materials through the low-temperature aluminothermic molten salt reduction process. The results show that the morphology and microstructure of nanostructured silicon depend largely on the morphology and microstructure of its precursor, i.e., one-dimensional tubular silicon from halloysite, two-dimensional lamellar silicon from kaolin, chlorite and dickite. When used as an anode for lithium-ion batteries, one-dimensional tubular Si derived from natural halloysite exhibits superior electrochemical performance, with an initial discharge capacity of 2675 mAh g⁻¹ and an initial coulombic efficiency of 86 %. It yields a high reversible capacity of 1418 mAh g⁻¹ at 0.2 A g⁻¹ after 400 cycles with a capacity retention of 53 %. The voltage and Si<img>Li chemical bond state of elemental silicon during charge and discharge were studied through molecular dynamics and first-principles calculations. It was found that electrons from Li atoms transferred to nearby Si atoms, and with the increase of Li content, the ionic bond properties of Si<img>Li bonds increased, resulting in a decrease in Young's modulus and an increase in tensile fracture. This work provides a facile and cost-effective approach for the preparation of nanostructured silicon from natural clay minerals as high-performance silicon anode materials.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117493"},"PeriodicalIF":8.9,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321282","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}

{"title":"Thermal storage performance of a novel spiral shell-tube phase change heat energy storage system","authors":"Xin Nie ,&nbsp;Long Li ,&nbsp;Leyi Yu ,&nbsp;Qianjun Mao ,&nbsp;Ying Xu","doi":"10.1016/j.est.2025.117488","DOIUrl":"10.1016/j.est.2025.117488","url":null,"abstract":"<div><div>The conical spiral shell-tube phase change thermal storage system has the advantages of large heat transfer area and high thermal storage efficiency, but it is still limited by the low thermal conductivity of phase change materials and the problem of the “melting dead zone”. Therefore, the influence of spiral tube diameter, spiral pitch, and spiral taper on the melting process of the novel conical spiral shell phase change heat storage system is numerically analyzed using the enthalpy-porosity method, and the superiority of the novel conical tube is verified by comparing it with the traditional cylindrical spiral tube. The results indicate that the tube diameter has an optimal threshold value. Under the condition of optimal tube diameter, the system melting time can be shortened by 18.9 %. In addition, the spiral pitch and lower taper have a significant effect on the thermal storage performance. Compared with the traditional cylindrical spiral tube, the average thermal storage efficiency of the novel spiral tube is increased by 36.4 %, and the exergy efficiency of the system is increased by 6.4 %. This study provides theoretical support for the design of spiral shell-tube phase change thermal storage system, promoting the efficient utilization of renewable energy sources, particularly solar energy.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117488"},"PeriodicalIF":8.9,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321279","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}

{"title":"Dual inorganic fillers synergy for enhancing carrier transport performance in all-solid-state lithium-sulfur battery","authors":"Nan Zhang ,&nbsp;Ze-Chen Lv ,&nbsp;Bing-Chen Liu ,&nbsp;Peng-Fei Wang ,&nbsp;Zong-Lin Liu ,&nbsp;Jie Shu ,&nbsp;Ting-Feng Yi","doi":"10.1016/j.est.2025.117494","DOIUrl":"10.1016/j.est.2025.117494","url":null,"abstract":"<div><div>PEO-based polymer solid-state electrolytes have low capacity and fast decay due to low ionic conductivity. Here, we design and prepare a composite electrolyte based on a PEO-based solid-state electrolyte plus two inorganic fillers. Adding Li₁₀GeP₂S₁₂ improves the ionic conductivity and activates the sulfur reaction to enhance the rate performance and capacity, and Li_1+<em>x</em>Al_<em>x</em>Ge_2-<em>x</em> (PO₄)₃ adsorbs and blocks polysulfides to inhibit the shuttle effect and thus enhance the cycling stability. The electrolyte with 10 wt% inorganic fillers has the highest ionic conductivity and lithium-ion transmission number. The lowest overpotential is in the cycling curve of the symmetric cell, and the most negligible impedance is at different temperatures. It has the highest discharge capacity and optimal coulombic efficiency among all-solid-state lithium‑sulfur batteries, with the highest rate performance of 1126.4 mAh g⁻¹, 931.7 mAh g⁻¹, and 764.6 mAh g⁻¹ at 0.1<em>C</em>, 0.3<em>C</em>, and 0.5<em>C</em>, respectively. Notably, it is stable for 1000 cycles at 2<em>C</em>. What's more, in situ electrochemical impedance spectroscopy indicates that the discharge and charge processes of the battery are reversible. This strategy opens up a viable avenue for the development and practical application of high-capacity solid-state energy storage batteries.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117494"},"PeriodicalIF":8.9,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321280","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}

{"title":"Dendritic microstructure-driven discharge behavior of micro-alloyed Mg–Sn binary alloys for Mg-air batteries","authors":"Chenchen Zhao ,&nbsp;Shuo Wang ,&nbsp;Wei Zhang ,&nbsp;Shubo Li ,&nbsp;Chuantian Zhai ,&nbsp;Hongxing Liang ,&nbsp;Yulin Zhang ,&nbsp;Zhaohui Wang ,&nbsp;Wenbo Du","doi":"10.1016/j.est.2025.117462","DOIUrl":"10.1016/j.est.2025.117462","url":null,"abstract":"<div><div>In cast magnesium alloys, the segregation of alloying elements often leads to the formation of dendrites and the subsequent precipitation of second phases. However, previous studies on magnesium anodes for Mg-air batteries have predominantly focused on the effects of second phases, largely overlooking the role of dendrites. In this investigation, micro-alloyed Mg–Sn binary alloys were designed to evaluate their discharge behavior and underlying mechanism as anodes for Mg-air batteries. The Sn atoms tend to dissolve and segregate within the matrix of as-cast alloys, forming dendrites that establish galvanic coupling with the Mg matrix and promote dissolution of the anode during discharge. The micro-alloyed Mg-0.5 wt% Sn, featuring refined dendritic structures, exhibited the optimal discharge performances, which achieved an anode utilization efficiency of 60.5 ± 0.7 % and a specific capacity of 1330.7 ± 15 mAh·g⁻¹ at 50 mA·cm⁻², along with an energy density of 1779.6 ± 45 mWh·g⁻¹ at 10 mA·cm⁻². This work provides new insights into the design of advanced Mg-air batteries through microstructural control of the anode.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117462"},"PeriodicalIF":8.9,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321281","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}

{"title":"Multiscale collaborative optimization guided synthesis of ZIF&MOG-derived bifunctional electrocatalysts fabricated via in-situ self-assembly in carbon nanofibers for durable zinc-air batteries","authors":"Hong Jin ,&nbsp;Haifeng Ding ,&nbsp;Laihong Zhou ,&nbsp;Ping Huang ,&nbsp;Wentian Wang ,&nbsp;Shuigen Li ,&nbsp;Xiaohui Chen ,&nbsp;Minhua Jiang ,&nbsp;Yunming Li","doi":"10.1016/j.est.2025.117497","DOIUrl":"10.1016/j.est.2025.117497","url":null,"abstract":"<div><div>As key materials in high-efficiency clean energy technologies, zeolitic imidazolate framework (ZIF) and metal-organic gel (MOG) materials have shown great potential. However, they suffer from issues such as insufficient electrical conductivity, stability, and active sites. To enhance the comprehensive performance of electrocatalytic materials, In this study, electrospinning technology was adopted to in-situ embed the ZIF-MOG precursor during the formation process of nanofibers. A graphene conductive fiber network was constructed through the high temperature carbon ring closure of organic fibers, resulting in the fabrication of the efficient catalyst of ZIF-MOG derived carbon nanofibers (ZM-CNF) with dual functions of oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). Raman spectroscopy and BET tests indicate that the ZM-CNF material has a high specific surface area, an appropriate degree of graphitization, and a mesoporous distribution. Electrochemical analysis indicated that the ORR half-wave potential for this catalyst is as high as 0.80 V, and the overpotential for OER is 396 mV at a current density of 10 mA cm⁻². By means of a balanced design of defect engineering and conductive networks, ZM-CNF achieved a synergistic optimization of catalytic performance and charge transfer efficiency. In the application test of zinc-air batteries, the battery assembled with ZM-CNF achieved a maximum power density of 115.7 mW cm⁻² and an open-circuit voltage of 1.442 V, which is comparable to the performance of the battery assembled with the commercial Pt-RuO₂ catalyst. During the 180 h charge-discharge cycle test, the charge-discharge efficiency of the ZM-CNF battery did not exhibit significant attenuation, demonstrating excellent electrocatalytic performance and cyclic stability. This study broadens the perspective for the structural regulation design of high-performance composite catalysts for energy storage and conversion applications.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117497"},"PeriodicalIF":8.9,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321283","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}

{"title":"A comprehensive review of optimizing phase change materials in thermal energy storage: The role of nanoparticles, fin configurations, and data-driven approaches","authors":"Ali Alahmer ,&nbsp;Tyriq Turner ,&nbsp;Sameer Al-Dahidi ,&nbsp;Mohammad Alrbai","doi":"10.1016/j.est.2025.117464","DOIUrl":"10.1016/j.est.2025.117464","url":null,"abstract":"<div><div>Thermal energy storage (TES) systems, particularly those utilizing phase change materials (PCMs), play a crucial role in enhancing the efficiency and sustainability of renewable energy systems. PCMs store and release energy during phase transitions, effectively addressing the intermittency of solar, wind, and hydro power sources and providing a reliable and efficient storage solution. However, several challenges hinder their optimal performance, including low thermal conductivity (TC), slow heat transfer rates, and supercooling effects. The review examines recent innovations that have focused on enhancing the performance of these systems by incorporating nanoparticles (NPs), such as copper, graphene oxide, and bio-based materials, to improve TC, accelerate phase transitions, and enhance heat transfer efficiency. It also highlights the importance of balancing the improvement in TC with the latent heat storage capacity. Additionally, ensuring long-term stability is a concern, as NP agglomeration and phase separation can degrade system performance over time. To address these issues, optimizing NP concentration and achieving uniform dispersion are crucial. Moreover, the design of TES systems, including advanced fin configurations, plays a vital role in maximizing heat transfer and improving system efficiency. Additionally, this review investigates optimization strategies, the application of machine learning (ML), deep learning (DL), and multi-objective optimization methods to boost the effectiveness of TES systems, with a specific emphasis on the utilization of NPs to enhance PCMs. This review critically evaluates various optimization techniques, including metaheuristic algorithms and ML models, to assess their effectiveness in predicting and optimizing the thermophysical properties of PCMs and NP-enhanced systems. It also explores the optimal combination of NP additives, their concentrations, and suitable PCMs to maximize storage capacity and extend the load discharge period for both open and closed systems. The study highlights significant advancements, identifies current limitations, and outlines future research directions in applying data-driven approaches to the design and operation of TES systems.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"131 ","pages":"Article 117464"},"PeriodicalIF":8.9,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321249","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}

{"title":"Theoretical Contribution to multiphysical modeling of flywheel energy storage systems with a focus on thermal effects in magnetic bearings","authors":"Bruno Rende,&nbsp;Ilmar Ferreira Santos","doi":"10.1016/j.est.2025.117276","DOIUrl":"10.1016/j.est.2025.117276","url":null,"abstract":"<div><div>This paper gives a theoretical contribution to the multiphysical modeling of Flywheel Energy Storage Systems. In this work, a laboratory prototype of a flywheel consisting of a vertical rotor supported by one axial passive magnetic bearing and by two radial active magnetic bearings, is used as an example for modeling. The rotor is modeled as a flexible body accounting for thermal and centrifugal expansions. The forces from the passive magnetic bearing are evaluated using experimentally validated analytical expressions based on Lorentz’s law, while the forces from the active magnetic bearings are calculated using the virtual work principle. The current dynamics are obtained through Ohm’s, Faraday’s, and Ampere’s laws. The temperatures are found from the energy equation, in which the heat sources are the system’s energy losses due to eddy currents and ohmic effects. The outcome of the multiphysical model is a set of nonlinear equations depending on the states: (i) the rotor lateral and axial displacements and velocities, (ii) the currents of active magnetic bearing stators, and (iii) the temperatures in the rotor and bearing stator. The system of equations is linearized around the operational point allowing for the calculation of a state matrix as a function of rotor and active magnetic bearing stator temperature, material, and geometrical properties of the rotor, passive magnetic bearing, and active magnetic bearings. The coupled linearized system is solved together such that it highlights the thermal effects on the natural frequencies, damping ratios, and time constants of the system. This holistic approach can be useful when optimizing and designing model-based controllers for flywheels.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"130 ","pages":"Article 117276"},"PeriodicalIF":8.9,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314031","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}

{"title":"Thermal performance of latent heat thermal energy storage units with fin optimization structure constructed based on the solid-liquid interface movement velocity","authors":"Yang Hu ,&nbsp;Kun Zhang ,&nbsp;Jialei Gao ,&nbsp;Qiang Zhang ,&nbsp;Kewei Song ,&nbsp;Liangbi Wang ,&nbsp;Guangtian Shi","doi":"10.1016/j.est.2025.117433","DOIUrl":"10.1016/j.est.2025.117433","url":null,"abstract":"<div><div>A novel method is proposed to optimize the fin structure to improve the horizontally positioned shell-and-tube latent heat thermal energy storage systems' thermal performance. This approach is according to the variation law of movement velocity of the solid-liquid interface in melting for a horizontal bare tube latent heat thermal energy storage unit. By optimizing the internal fin structure, the method balances the heat transfer rates in all regions, resulting in shorter melting times and improved thermal performance. The enthalpy-porosity method is used to simulate the transient phase change process of the PCM. Compared to conventional uniform fin structures, the fin height optimization and fin angle optimization configuration of the number of basic fins constructed by this method can increase the average heat transfer rate by 87.2 % and 20.8 %, respectively. Furthermore, the fin comprehensive optimization structure established by the further developed coupling fin angle optimization method and fin height optimization method can increase the average heat transfer rate by more than 106 %. These results show that the proposed approach can remarkably enhance the thermal performance of latent heat energy storage units and provide new inspirations for the optimization of the fin structure of future phase change thermal energy storage units.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"130 ","pages":"Article 117433"},"PeriodicalIF":8.9,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314178","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}