Journal of energy storage最新文献_第5页

Dynamic cooperative scheduling and adaptive benefit allocation for multi-microgrid systems with shared energy storage under source-load uncertainty 源负荷不确定性下共享储能多微网系统动态协同调度与自适应效益分配

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-05-27 DOI: 10.1016/j.est.2025.117213

Bin Chen , Zeke Li , Bijin Liu , Haiwei Fan , Qiutian Zhong

{"title":"Dynamic cooperative scheduling and adaptive benefit allocation for multi-microgrid systems with shared energy storage under source-load uncertainty","authors":"Bin Chen , Zeke Li , Bijin Liu , Haiwei Fan , Qiutian Zhong","doi":"10.1016/j.est.2025.117213","DOIUrl":"10.1016/j.est.2025.117213","url":null,"abstract":"<div><div>The economic limitations of independent energy storage systems in microgrids necessitate innovative solutions to enhance operational efficiency and cost-effectiveness. Shared energy storage presents a viable alternative by enabling multiple microgrids to cooperatively utilize storage resources, thereby optimizing energy management and reducing overall costs. This study introduces a novel framework for dynamic cooperative scheduling and adaptive benefit allocation, addressing the challenges posed by source-load uncertainties in multi-microgrid systems. The proposed framework is built on a robust two-stage optimization model, where the first stage focuses on energy pre-scheduling, and the second stage performs real-time adjustments to mitigate fluctuations in renewable energy generation and demand. To ensure a fair and efficient allocation of benefits, a Dynamic Proportional Allocation Mechanism is developed, which considers real-time contributions, energy utilization efficiency, and critical-period support. Simulation studies conducted on three interconnected microgrids in a resource-constrained region demonstrate the effectiveness of the proposed approach. The results indicate a 15.4 % reduction in system operational risks, a 12.7 % improvement in scheduling cost efficiency, and a 9.1 % increase in overall participant satisfaction compared to conventional methods. Furthermore, the proposed model achieves a 20 % reduction in reliance on grid power purchases, enhancing the self-sufficiency of the multi-microgrid system. The fair distribution of economic benefits fosters better cooperation among participating microgrids, with the difference in savings rates reduced from 10.6 % to 3.1 %, ensuring equitable resource sharing.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"128 ","pages":"Article 117213"},"PeriodicalIF":8.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154959","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 thermal efficiency of PCM-integrated heat sinks: Insights into T-shaped fins and PCM–air Interface morphology 提高pcm集成散热器的热效率：洞察t形翅片和pcm -空气界面形态

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-05-27 DOI: 10.1016/j.est.2025.117201

Chi-An Chuang, Chih-Che Chueh

{"title":"Enhanced thermal efficiency of PCM-integrated heat sinks: Insights into T-shaped fins and PCM–air Interface morphology","authors":"Chi-An Chuang, Chih-Che Chueh","doi":"10.1016/j.est.2025.117201","DOIUrl":"10.1016/j.est.2025.117201","url":null,"abstract":"<div><div>In this study, the melting process of a phase change material (PCM) within a heat sink featuring T-shaped aluminum fins enclosed by a rectangular aluminum casing is numerically investigated. The design includes an interior PCM region overlaid by an air layer, creating a dynamic air–PCM interface—a critical aspect influencing thermal performance. Using the volume of fluid (VOF) model, the air–PCM interface evolution is meticulously tracked, shedding light on its pivotal role in heat transfer mechanisms during the melting process. The focus of this work is the unexplored impact of T-shaped aluminum fin configurations on thermal characteristics. Two geometric parameters were examined: the aspect ratio of the horizontal to vertical lengths of the T-shaped fins and the bottom width–wall height ratio of the aluminum casing. Notably, a fin aspect ratio of 0.67 was found to effectively moderate the increase in system temperature, whereas a casing aspect ratio of 2.29 significantly delayed the increase in temperature. These results highlight the transformative influence of the air–PCM interface morphology in enhancing natural convection and thermal regulation. Properly optimized T-shaped fin structures not only improve heat transfer performance but also extend the temperature control duration, offering significant advantages for PCM-based heat sinks. The findings demonstrate the potential of this design in latent heat thermal energy storage systems requiring advanced thermal stability and efficiency.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"128 ","pages":"Article 117201"},"PeriodicalIF":8.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154960","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

Review on recent advances in shape-stable phase change hydrogels for thermal energy storage applications 热储能用形状稳定相变水凝胶研究进展综述

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-05-27 DOI: 10.1016/j.est.2025.117245

Chenhui He , Hongyu Chen , Zhi Huang , Zhili Song , Xinyu Liu , Shen Gao , Juntao Zhang , Xiaowei Zhang , Yu Jiang , Hongyi Gao

{"title":"Review on recent advances in shape-stable phase change hydrogels for thermal energy storage applications","authors":"Chenhui He , Hongyu Chen , Zhi Huang , Zhili Song , Xinyu Liu , Shen Gao , Juntao Zhang , Xiaowei Zhang , Yu Jiang , Hongyi Gao","doi":"10.1016/j.est.2025.117245","DOIUrl":"10.1016/j.est.2025.117245","url":null,"abstract":"<div><div>The escalating global energy demand, coupled with the intensifying energy crisis, has catalyzed significant interest in the pursuit of efficient and stable energy storage technologies. In this context, shape-stable phase change hydrogels are considered as a promising class of materials for thermal energy storage (TES) applications. This review first introduces phase change hydrogels and elucidates the basic mechanism of their phase change. Recent advances in the preparation strategies of phase change hydrogels, such as chemical cross-linking, physical cross-linking and interpenetrating polymer network methods, are comprehensively reviewed and it is assessed how these methods affect the performance characteristics of the hydrogels. In addition, the article focuses on various applications of phase change hydrogels in thermal management, highlighting their role in improving energy efficiency in buildings, regulating the temperature of wearable devices and facilitating infrared thermal management. This review aims to provide a valuable reference for future research endeavors and practical implementations in TES.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"128 ","pages":"Article 117245"},"PeriodicalIF":8.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144139310","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

Topology optimization on fin structure used in solar thermochemical heat storage reactor 太阳能热化学蓄热反应器翅片结构拓扑优化

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-05-27 DOI: 10.1016/j.est.2025.117197

H.Y. Jia , H. Ye , Z.J. Dong , Y. He , K.J. Dang , Y.B. Tao

{"title":"Topology optimization on fin structure used in solar thermochemical heat storage reactor","authors":"H.Y. Jia , H. Ye , Z.J. Dong , Y. He , K.J. Dang , Y.B. Tao","doi":"10.1016/j.est.2025.117197","DOIUrl":"10.1016/j.est.2025.117197","url":null,"abstract":"<div><div>Thermochemical heat storage (TCHS) has the advantages of high energy density and low heat loss. In this study, parabolic trough concentrator (PTC) technology is combined with TCHS reactor. A numerical model of photothermal coupled energy storage process is established for PTC-TCHS. The fins of the reactor are designed by topology optimization method to reduce the temperature difference and improve the TCHS performance. Firstly, the effect of fin volume fraction on TCHS performance is analyzed, and the most reasonable fin volume fraction of 15 % is derived. After that, performance of the reactor with topological fins is compared with other empirically designed fins. The results show that the topological fins were effective in reducing the temperature difference by 37 %, 19.9 % and 8.5 % compared to straight, horizontal and curved fins. Meanwhile, the topological fin has the shortest reaction time of 6980 s and the highest thermal efficiency of 76.7 %. Finally, the effects of different operating conditions of DNI and reactant porosity on the topological fin reactor are explored. Under different operating conditions, the topological fin reactor always has better applicability and superiority, which demonstrate the reliability of the topology optimization method for fin design of solar thermochemical heat storage reactor.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"128 ","pages":"Article 117197"},"PeriodicalIF":8.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144139743","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

Trends and emerging directions in battery manufacturing: A comprehensive bibliometric analysis 电池制造的趋势和新兴方向：综合文献计量学分析

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-05-27 DOI: 10.1016/j.est.2025.117171

Burcu Oral , Çağla Odabaşı , Aybüke Leba Akman

{"title":"Trends and emerging directions in battery manufacturing: A comprehensive bibliometric analysis","authors":"Burcu Oral , Çağla Odabaşı , Aybüke Leba Akman","doi":"10.1016/j.est.2025.117171","DOIUrl":"10.1016/j.est.2025.117171","url":null,"abstract":"<div><div>The expansive literature on battery manufacturing makes it challenging to identify recent trends and research priorities without advanced analytical techniques. Bibliometric analysis, leveraging text mining of author keywords, titles, and abstracts, provides a systematic approach to processing vast amounts of data. In this study, battery manufacturing research from the last decade was examined using techniques such as word clouds, co-occurrence networks, and trend analysis. The findings indicate that Singapore, Australia, and the USA lead in research impact, as reflected by higher average citation counts. The literature predominantly focuses on cell manufacturing, particularly for lithium-ion batteries. However, emerging technologies such as lithium-metal, solid-state, aqueous zinc-ion, and zinc-metal batteries have gained attention in recent years. Among components, anodes were the most studied, especially for lithium-ion and sodium-ion batteries, with significant focus on materials like graphene and carbon. Anode-free batteries are identified as an emerging trend, while solid-state battery research emphasizes interface engineering for solid electrolyte interphase (SEI) stability and the use of lithium lanthanum zirconate (LLZO) electrolytes. Performance improvement remains the dominant theme, encompassing innovations in thermal management and battery management systems (BMS). Recent years have also seen growing interest in smart manufacturing and sustainability topics, including life cycle assessment (LCA), second-life applications, disassembly, and recycling. Tab manufacturing research highlights advancements in multi-layer welding and tensile shear load assessment to improve mechanical strength and quality.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"128 ","pages":"Article 117171"},"PeriodicalIF":8.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144139309","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

A fuzzy extended PI observer for state of charge estimation of LiFePO4 batteries across broad temperature ranges 基于模糊扩展PI观测器的宽温度范围LiFePO4电池充电状态估计

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-05-27 DOI: 10.1016/j.est.2025.116964

Daren Chen, Li Sun, Fukang Shen, Guangxin Gao, Yunjiang Lou, Guangzhong Dong

{"title":"A fuzzy extended PI observer for state of charge estimation of LiFePO4 batteries across broad temperature ranges","authors":"Daren Chen, Li Sun, Fukang Shen, Guangxin Gao, Yunjiang Lou, Guangzhong Dong","doi":"10.1016/j.est.2025.116964","DOIUrl":"10.1016/j.est.2025.116964","url":null,"abstract":"<div><div>Accurate state of charge (SOC) estimation for LiFePO<sub>4</sub> (LFP) batteries across broad temperature ranges is a critical challenge. This study proposes an adaptive fuzzy extended proportional–integral (PI) observer framework to enhance SOC estimation accuracy and robustness under these demanding conditions. First, a temperature-compensated capacity model (TCCM) is proposed to enhance the Ampere-hour (Ah) integral method for better temperature-dependent capacity description, which motivates revised SOC definitions to provide more physically meaningful state representations (SOC<sub>T</sub> and SOC<sub>S</sub>) across temperatures. Second, to account for the effect of hysteresis on SOC assessment, a temperature-adaptive open-circuit voltage (OCV) tracking model is developed by incorporating the second-order equivalent circuit model (ECM) with temperature-dependent hysteresis compensation. Third, to minimize errors from model uncertainty when fusing the enhanced Ah integral method and OCV tracker, a fuzzy extended PI observer is employed to intelligently adjust its gains based on real-time conditions for adaptive SOC estimation. Experimental validation using demanding dynamic profiles at temperatures from −10 <span><math><mo>°</mo></math></span>C to 10 <span><math><mo>°</mo></math></span>C demonstrates the framework’s effectiveness. The results demonstrate that the proposed framework can accurately provide physically meaningful states across broad temperature ranges, with error of SOC<sub>T</sub> consistently below 2.5% across all tested conditions and SOC<sub>S</sub> showing end-point errors of 3%, ensuring performance for real-world EV applications.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"128 ","pages":"Article 116964"},"PeriodicalIF":8.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144139755","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

Assessing hydrogen storage potential in Zechstein salt caverns of the Norwegian North Sea 评估挪威北海Zechstein盐穴储氢潜力

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-05-27 DOI: 10.1016/j.est.2025.117032

Daniele Blancone , Leopoldo Matias Ruiz Maraggi , Nestor Cardozo , Lorena Moscardelli , Alejandro Escalona

{"title":"Assessing hydrogen storage potential in Zechstein salt caverns of the Norwegian North Sea","authors":"Daniele Blancone , Leopoldo Matias Ruiz Maraggi , Nestor Cardozo , Lorena Moscardelli , Alejandro Escalona","doi":"10.1016/j.est.2025.117032","DOIUrl":"10.1016/j.est.2025.117032","url":null,"abstract":"<div><div>Underground hydrogen storage (UHS) in salt caverns offers a viable solution for balancing intermittent renewable energy sources like wind and solar. This study evaluates UHS potential in the southern Norwegian North Sea, focusing on Upper Permian Zechstein salt structures. Using well log and seismic data, we characterize the salt structures and identify those suitable for cavern development. Through a GIS-based analysis and the GeoH<sub>2</sub> tool, we estimate storage capacity across low, base, and high scenarios. In the base case, ∼8700 caverns across 143 salt domes could store ∼11,164 Bscf of hydrogen, equating to ∼900 TWh of energy. After accounting for 22 % non-halite content estimated from well logs, this is reduced to 699 TWh—about three times Norway's annual energy consumption. The alignment of UHS in salt caverns with ongoing and planned CO<sub>2</sub> storage and wind energy projects, could transform the Norwegian Continental Shelf into a hub for low-carbon energy, supporting Europe's transition to a sustainable energy system.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"128 ","pages":"Article 117032"},"PeriodicalIF":8.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154961","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

Constructing intrinsic solid phase change materials with reprocessability and thermal energy storage through multiple hydrogen bonds and acetals 通过多个氢键和缩醛构建具有可再加工性和储热性能的本征固体相变材料

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-05-27 DOI: 10.1016/j.est.2025.117138

Baoya Shang, Jianbing Cui, Fei Sun, Tatsuo Kaneko, Weifu Dong, Mingqing Chen, Dongjian Shi

{"title":"Constructing intrinsic solid phase change materials with reprocessability and thermal energy storage through multiple hydrogen bonds and acetals","authors":"Baoya Shang, Jianbing Cui, Fei Sun, Tatsuo Kaneko, Weifu Dong, Mingqing Chen, Dongjian Shi","doi":"10.1016/j.est.2025.117138","DOIUrl":"10.1016/j.est.2025.117138","url":null,"abstract":"<div><div>Thermal management in flexible phase change materials (PCMs) for electronic devices necessitates a delicate balance between energy storage capacity, mechanical properties and reprocessability within complex application environments. However, the structural design of most flexible phase change materials only focuses on a single functional requirements and fails to meet the demands for phase change thermal energy storage materials and thermal management devices with multiple different performances. Therefore, we propose a simple and cost-effective strategy is proposed to fabricate intrinsic solid-solid phase change materials (SSPCMs) that balance heat storage, mechanical strength and reprocessability. We prepared a polyurethane matrix using high molecular weight PEG, which is more easily crystallized, and a bio-based acetal diol derived from furfural and 1,6-hexanediol. The introduction of bio-based acetal diols improves energy storage capacity and efficiency. In addition, the matrix contains multiple H-bonds, which act as strong physical crosslinks to enhance the mechanical properties of the flexible PCM. The resultant high-performance phase change materials (HFPCMs), with a polyethylene glycol (PEG) content of 80 wt%, show remarkable latent heat capacity of 134.43 J g<sup>−1</sup>, a tensile strength of 1034 %, high thermal stability (no significant shape change below 160 °C), and good reprocessability. In the cyclic thermal stability test, it has good reversible stability and cyclic sustainability. Overall, this work provides a new method to development of intrinsic SSPCMs with high energy storage capacity, good mechanical properties, and reprocessability, offering significant potential for advanced thermal management in electronic devices.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"128 ","pages":"Article 117138"},"PeriodicalIF":8.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144139754","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

Simulation and analysis of pseudo-passive power battery thermal runaway propagation inhibition system 伪无源动力电池热失控传播抑制系统仿真与分析

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-05-27 DOI: 10.1016/j.est.2025.117120

Zhantang Lin , Zeyu Li , Jiayan Chen , Junrui Deng , Hongwei Wu

{"title":"Simulation and analysis of pseudo-passive power battery thermal runaway propagation inhibition system","authors":"Zhantang Lin , Zeyu Li , Jiayan Chen , Junrui Deng , Hongwei Wu","doi":"10.1016/j.est.2025.117120","DOIUrl":"10.1016/j.est.2025.117120","url":null,"abstract":"<div><div>Passive power battery thermal runaway propagation inhibition technologies, being able to block the thermal runaway without external power sources, are highly important for the safety of electric vehicles and have attracted extensive attention. The existing passive thermal runaway propagation inhibition approach is based on thermal insulation, leading to the large thermal resistance between batteries and incompatibility with thermal management. In this regard, the pseudo-passive power battery thermal runaway propagation inhibition system, integrating with pseudo-passive heat removal and thermal insulation, is proposed to address the above-mentioned issue. The system model, based on the lumped parameter model of pseudo-passive heat removal and the 3D model of thermal runaway propagation, is developed and verified. A good agreement of the simulation and experiment data is shown, i.e., the average deviation is 6.91 %. Furthermore, the system performance is assessed and compared with the existing passive approach. Results display that the pseudo-passive heat removal process addresses 24.6 % of the heat generation of the battery array, and the thermal resistance necessary to stop the thermal runaway propagation comes down by 48–85 %. The paper provides new insight into power battery thermal runaway propagation inhibition technologies, and is favorable to enhance the safety of electric vehicles.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"128 ","pages":"Article 117120"},"PeriodicalIF":8.9,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144139756","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

Synthesis of MOF-MXene-supported MgSO4 composites for efficient thermochemical heat storage mof - mxene负载MgSO4高效热化学储热复合材料的合成

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-05-26 DOI: 10.1016/j.est.2025.117194

Ata Ur Rehman , Tianyu Zhao , Sining Yun , Qiang Xiao , Weidong Zhu , Fumin Zhang

{"title":"Synthesis of MOF-MXene-supported MgSO4 composites for efficient thermochemical heat storage","authors":"Ata Ur Rehman , Tianyu Zhao , Sining Yun , Qiang Xiao , Weidong Zhu , Fumin Zhang","doi":"10.1016/j.est.2025.117194","DOIUrl":"10.1016/j.est.2025.117194","url":null,"abstract":"<div><div>Magnesium sulfate heptahydrate (MgSO<sub>4</sub>•7H<sub>2</sub>O) has emerged as a highly promising candidate for thermochemical heat storage applications. However, it encounters stability challenges during hydration/dehydration cycles and demonstrates inadequate reaction kinetics under equilibrium conditions. Metal-organic frameworks (MOFs) have recently attracted significant attention due to their large surface area and well-ordered porous structure, while two-dimensional MXene materials have gained prominence in the materials field due to their exceptional thermal conductivity. The integration of these materials with active salt hydrates to develop novel thermal storage composites is hypothesized to present significant potential for space heating applications. In this study, a novel thermochemical heat storage material, NH<sub>2</sub>-MIL-B88(Fe)-MXene-supported MgSO<sub>4</sub> (Fe-MOF-MXene-MgSO<sub>4</sub>), was synthesized through impregnation methodology. TG-DSC analysis indicated that Fe-MOF-MXene-MgSO<sub>4</sub> demonstrated an enhanced hydration enthalpy of 1503 J g<sup>−1</sup> compared to pure MgSO<sub>4</sub>•7H<sub>2</sub>O (1180 J g<sup>−1</sup>). The composite demonstrated superior cycling stability with only 2.08 % capacity loss compared to 24.27 % for pure MgSO<sub>4</sub>•7H<sub>2</sub>O over 20 consecutive cycles. This performance enhancement can be attributed to the synergistic effects of Fe-MOF and MXene components, which collectively improve the structural integrity and dispersion of MgSO<sub>4</sub>•7H<sub>2</sub>O. The synthesized Fe-MOF-MXene-MgSO<sub>4</sub> composite exhibits significant potential for advanced thermochemical heat storage applications.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"128 ","pages":"Article 117194"},"PeriodicalIF":8.9,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134990","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