Journal of energy storage最新文献

{"title":"An improved variational mode decomposition neural network intelligent diagnosis method for battery connection faults based on real vehicle data","authors":"Lei Yao ,&nbsp;Chang Yu ,&nbsp;Yanqiu Xiao ,&nbsp;Huilin Dai ,&nbsp;Guangzhen Cui ,&nbsp;Zhigen Fei ,&nbsp;Tiansi Wang","doi":"10.1016/j.est.2025.118791","DOIUrl":"10.1016/j.est.2025.118791","url":null,"abstract":"<div><div>Continuous vibrations/impacts in vehicle Li-ion packs loosen connectors, which may lead to connection failures and subsequent thermal runaway hazards. The characteristics of battery pack connection failures are often hidden within signals of different frequencies, making them difficult to detect promptly. Therefore, this paper proposes an intelligent fault diagnosis method for lithium-ion batteries based on an improved variational mode decomposition neural network, which can identify fault information promptly and accurately. Firstly, the Archimedes optimization algorithm is used to optimize the parameters of variational mode decomposition in order to obtain optimal parameters, and the impact of extracting different levels of intrinsic mode functions on feature extraction is analyzed. The dimensionality of extracted multi-high frequency fault features is reduced using an autoencoder, and a sliding window is introduced to recombine input signals in order to expand samples. Finally, the processed sample is input into a one-dimensional convolutional neural network model for classification, and a confusion matrix is introduced to explain reasons for diagnostic errors while real vehicle verification is conducted. The results show that this method has high accuracy and real-time performance, providing a theoretical basis for future battery management system intelligence and safety.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118791"},"PeriodicalIF":8.9,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270978","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":"Aza-triphenylene-based covalent organic framework: Anode for high-efficiency sodium-ion batteries","authors":"Manpreet Kaur ,&nbsp;Brahmananda Chakraborty ,&nbsp;T.J. Dhilip Kumar","doi":"10.1016/j.est.2025.118502","DOIUrl":"10.1016/j.est.2025.118502","url":null,"abstract":"<div><div>This research examines the suitability of newly synthesized aza-triphenylene based covalent organic framework (aza-COF) as a negative electrode material for sodium-ion batteries (SIBs) through first-principles density functional theory. This work identifies the two-dimensional aza-COF as a direct band gap semiconductor with an energy gap of 1.02 eV. When sodium is loaded at the most reliable location, the aza-COF system changes from a semiconductor to a metallic state, leading to improved electrical conductivity. Aza-COF shows a diffusion barrier of 0.78 eV, a high theoretical specific capacity of 602.3 mAhg⁻¹, an energy density of 1259.5 mWhg⁻¹, and mean voltage of 0.62 V falling within the ideal range of 0.1–1.0 V. Additionally, its structural adaptability further supports its suitability for such applications. Also, aza-COF demonstrates a strong affinity for electrolytes highlighting its exceptional suitability for electrode applications. These compelling theoretical results indicate that aza-COF could function as a highly efficient anode material for SIBs</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118502"},"PeriodicalIF":8.9,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145271360","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":"Life-cycle exergetic efficiency and CO2 intensity of diabatic and adiabatic compressed air energy storage systems","authors":"Boyukagha Baghirov ,&nbsp;Sahar Hoornahad ,&nbsp;Denis Voskov ,&nbsp;Rouhi Farajzadeh","doi":"10.1016/j.est.2025.118572","DOIUrl":"10.1016/j.est.2025.118572","url":null,"abstract":"<div><div>This study uses the concept of exergy-return on exergy-investment (ERoEI) to evaluate the life-cycle exergetic efficiency and CO₂ intensity (grams CO₂ per MJ of electricity) of (diabatic and adiabatic) compressed air energy storage (CAES) systems. Several CAES configurations are assessed under defined system boundaries, including diabatic systems powered by methane (CH₄) or hydrogen (H₂), and adiabatic system with a thermal energy storage (TES) facility.</div><div>The results show that conventional (diabatic) CAES system powered by natural gas has the lower exergetic efficiency and higher CO₂ intensity compared to adiabatic CAES due to the heat dissipation during compression stage and additional fuel requirements for reheating the air during expansion. Integrating carbon capture and storage (CCS) plant with conventional diabatic CAES can nearly halve the CO₂ intensity for electricity generation although the additional exergy investment for the CCS process reduces the exergetic efficiency of the system. Transitioning to green H₂ (produced from low-carbon electricity) as the primary turbine fuel in the diabatic CAES results in a 65–76 % reduction in CO₂ intensity. However, the average exergetic efficiency of system decreases by around 10 %, mainly due to the substantial exergy investment associated with hydrogen production. It is also found that the adiabatic CAES system integrated with TES demonstrates the highest thermodynamic and environmental performance. When 100 % of compression heat is captured and reused during discharge phase, the system reaches ERoEI values up to 61 % with CO₂ intensity of 12–26 g CO₂ per MJe.</div><div><em>Disclaimer: The results and performance metrics presented in this study are based on modelled scenarios and literature-derived parameters under defined system boundaries. Actual performance of CAES systems may vary depending on site-specific conditions, technology maturity, and operational configurations. All efficiency values, CO₂ intensity estimates, and comparative assessments should be interpreted within the context of the assumptions and limitations described herein. This study does not constitute a commercial endorsement or performance guarantee. The authors have made every effort to ensure accuracy but accept no liability for decisions made based on this analysis.</em></div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118572"},"PeriodicalIF":8.9,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145271362","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 multi-scale energy storage configuration planning method with improved MMD-GAN wind–photovoltaic scene generation","authors":"Tong Yang ,&nbsp;Minan Tang ,&nbsp;Hanting Li ,&nbsp;Jinping Li","doi":"10.1016/j.est.2025.118749","DOIUrl":"10.1016/j.est.2025.118749","url":null,"abstract":"<div><div>Increasing proportion of new energy puts new demands on the flexibility regulation capability of the new power system. To this end, a long–short term wind–PV–storage station cooperative optimization planning method is established to take into account the economy and multi-scale and multi-objective. Firstly, an improved MMD-GAN is used to generate the wind and solar output scene. Month labels are added to depict the power output accurately, and multi-scenes are assigned by boundary-divided cluster method. Secondly, based on the power market clearing and different energy storage operation characteristics, a two-layer optimization model with long–short time scale is established. The upper layer determines the energy storage configuration, and the lower layer simulates the operation strategy. Through the information interaction between the upper and lower layers, the energy storage parameters are dynamically optimized in the production simulation, to realize the economically optimal power-capacity configuration scheme. Finally, the effectiveness of the proposed method is verified on the actual data of a wind–PV-storage power plant in Gansu. The results show that the improved MMD-GAN method reduces over 45% on the Wasserstein distance than the comparison methods, which can improve the accuracy of the generated scenarios. The combined BES-HES configuration reduces the wind–PV abandonment rate by more than 3.22% compared to the single storage configuration. Based on the volatility LMP strategy, it takes advantage of the price differences between different time periods to expand arbitrage space and achieve economic optimization.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118749"},"PeriodicalIF":8.9,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145271490","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 thermal runaway and thermal runaway propagation modelling approaches in lithium-ion batteries","authors":"Nikola Vujnović ,&nbsp;Karl Hohenberg ,&nbsp;Patrick Höschele ,&nbsp;Jörg Moser ,&nbsp;Christian Ellersdorfer","doi":"10.1016/j.est.2025.118685","DOIUrl":"10.1016/j.est.2025.118685","url":null,"abstract":"<div><div>The rapid shift to electric and hybrid vehicles has intensified the focus on Li-ion battery safety, especially regarding thermal runaway (TR) and its propagation (TRP). This comprehensive review examines the state-of-the-art in TR and TRP modelling approaches, aiming to improve safety and meet evolving standards. TR models typically use detailed Arrhenius-based reaction kinetics or simplified alternatives, with a strong emphasis on accurately capturing the highest energy release phase - chemical cross-talk. TRP models expand this to module and pack levels, incorporating heat transfer, venting, and spatial discretisation. The review summarises key methodologies, outlining their strengths, limitations, and areas for improvement. Visual aids, including TR and TRP modelling diagrams, help clarify complex mechanisms. Major findings highlight the dominance of chemical cross-talk in TR and the importance of heat conduction in TRP for pouch and prismatic cells. Future research should refine venting models to better capture convection effects, and consider variations in thermal properties, initial/boundary conditions, and cell ageing. Advancements in these areas can guide the development of more effective pack-level mitigation strategies, ultimately enhancing the safety and reliability of Li-ion batteries.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118685"},"PeriodicalIF":8.9,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270796","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":"Phosphorus doped graphene nanoribbons as efficient cathode for zinc-ion hybrid supercapacitors","authors":"Jiayao Lv,&nbsp;Xu Zheng,&nbsp;Tianyang Zhou,&nbsp;Yuhua Xue","doi":"10.1016/j.est.2025.118729","DOIUrl":"10.1016/j.est.2025.118729","url":null,"abstract":"<div><div>Zinc-ion hybrid supercapacitors (ZIHS) are characterized by high energy density along with outstanding cycling stability and safety, positioning them as a promising solution for energy storage in portable electronics and electric vehicles. The design of cathode materials plays a crucial role in enhancing the performance of ZIHS. In the paper, we designed and synthesized a phosphorus-doped graphene nanoribbon (P-GR) and regulated the p-element content in P-GR. XPS showed that phosphorus was successfully doped into the graphene nanoribbons and the phosphorus content reached 4.66 %. P-GR combined with three-dimensional carbon/aluminum oxide/aluminum (CAAO) to obtain a P-GR@CAAO composite electrode. The solid state ZIHS with P-GR@CAAO as cathode exhibits excellent performance with an areal capacitance as high as 172.41 mF cm⁻² and a high energy density of up to 61.3 μWh cm⁻². The P-GR@CAAO based ZIHS also shows good stability over 10,000 charge and discharge cycles.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118729"},"PeriodicalIF":8.9,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270799","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":"Recent advances in nickel-manganese phosphates-based electrodes for hybrid supercapacitors","authors":"T. Kgwadibane,&nbsp;N.W. Hlongwa,&nbsp;X.G. Fuku,&nbsp;M.J. Madito","doi":"10.1016/j.est.2025.118782","DOIUrl":"10.1016/j.est.2025.118782","url":null,"abstract":"<div><div>Nickel‑manganese phosphates (NMPs) are emerging as highly promising electrode materials for hybrid supercapacitors, combining rich pseudocapacitive redox activity, structural robustness, and compositional tunability. Integration with conductive carbon frameworks, MOF-derived architectures, and bimetallic designs has enhanced conductivity, energy and power density, and cycling stability, with laboratory studies reporting specific capacitances exceeding 1100 F/g and excellent long-term retention. Translating these advances to practical devices requires addressing key challenges, including scalable and sustainable synthesis, intrinsic conductivity limitations, and device-level validation beyond half-cell tests. Deeper mechanistic insights into charge storage, ion diffusion, and degradation pathways are needed, which can be achieved through in-situ and operando characterization. Tailored electrolytes, hybrid composites, and heterostructured electrode designs offer pathways to optimize ionic transport, redox performance, and structural stability. By integrating rational material design, advanced characterization, and electrolyte engineering, NMP-based electrodes can achieve high energy and power density with long-term durability. These developments position nickel‑manganese phosphates as versatile candidates for next-generation hybrid supercapacitors.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118782"},"PeriodicalIF":8.9,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270846","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":"Bi-ionic conducting polymer grafting conductive carbon black as binders enable fast charging/discharging and stable cycling of LiFePO4 cathodes","authors":"Meichun He ,&nbsp;Yanmeng Zhang ,&nbsp;Bing Sun ,&nbsp;Haokun Yan ,&nbsp;Dongmei Zhang ,&nbsp;Cunyuan Pei ,&nbsp;Pengju Li ,&nbsp;Shibing Ni","doi":"10.1016/j.est.2025.118796","DOIUrl":"10.1016/j.est.2025.118796","url":null,"abstract":"<div><div>Lithium iron phosphate (LFP) cathodes face challenges in rate capability and cycling due to their low electronic/ionic conductivity, exacerbated by conventional polyvinylidene fluoride (PVDF) binders with insulating properties and weak adhesion. This work presents a water-soluble multifunctional binder prepared by the Bi-ionic conducting polymer grafting conductive acetylene black to address these bottlenecks. The 3D crosslinked structure facilitates the molecular entanglement, as well as the formation of unobstructed lithium-ion pathways (the ethylene oxide (EO) units and the lithiated ionomers), significantly enhancing the adhesion and Li⁺ ion diffusion of binder. Furthermore, the well dispersed acetylene black as the nodes in the crosslinking networks improves the conductivity of integrative LFP electrodes. As a result, the LFP cathode delivers a high capacity of 133.0 mA h g⁻¹ at 2C after 500 cycles with 89.9 % capacity retention. Even at 7C, the capacity of 110.6 mA h g⁻¹ can be obtained in LFP cathode, exhibiting outstanding rate performance. In addition, Li⁺ diffusion coefficient of 5.10 × 10⁻⁸ cm² s⁻¹ achieved in LFP with the modified binder is twice that of conventional PVDF-based electrodes. This work underscores the critical role of ion/electron-conductive binders in overcoming the trade-offs between conductivity, stability, and sustainability, providing a strategy for high-performance LFP cathodes in next-generation lithium-ion batteries.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118796"},"PeriodicalIF":8.9,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270984","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":"Insights into stability, kinetic, and electrochemical performance of silicon-doped boron carbon nitride as a promising anode material for lithium-ion battery: First-principles calculations","authors":"Suresh Sampathkumar ,&nbsp;Selvarengan Paranthaman ,&nbsp;Liang-Yin Kuo","doi":"10.1016/j.est.2025.118534","DOIUrl":"10.1016/j.est.2025.118534","url":null,"abstract":"<div><div>Two-dimensional boron carbon nitride (BCN) has gained increasing attention for use in lithium-ion batteries (LIBs) due to its unique electronic properties. In this study, the effects of silicon (Si)-doping on the structural, kinetic, and electrochemical properties of BCN are investigated by density functional theory calculations. Minor Si-doping in the BCN lattice (Si-BCN) is found to alter the pore radius, which enhances Li-ion adsorption and diffusion. The Li-ion adsorption energy (<em>E</em>_ad) increases from −2.02 eV in pristine BCN to −2.75 eV in Si-BCN nanosheet, indicating stronger Li-ions interaction. This more negative <em>E</em>_ad enhances the stability of Li storage sites, while the reduced diffusion barrier (0.13 eV) facilitates efficient Li-ion transport in Si-BCN. Moreover, Si-doping leads to a reduction in the band gap to 1.12 eV, transitioning the material from semi-metallic to metallic behavior and suggesting improved electronic conductivity. The theoretical capacities are 1456 mAh<span><math><mo>∙</mo></math></span>g⁻¹ for pristine BCN and 1428 mAh<span><math><mo>∙</mo></math></span>g⁻¹ for Si-BCN. Although the capacities are comparable, the increased electronic and ionic conductivities of Si-BCN allow for faster de−/lithiation and show the possibility for faster charging/discharging Li-ion cells.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118534"},"PeriodicalIF":8.9,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145271358","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":"Application, improvement and prospective advancements of solid electrolytes in zinc-ion batteries","authors":"Tianyang Zhou ,&nbsp;Yashuo Lei ,&nbsp;Yuhua Xue ,&nbsp;Yixuan Wu","doi":"10.1016/j.est.2025.118765","DOIUrl":"10.1016/j.est.2025.118765","url":null,"abstract":"<div><div>Zinc-ion batteries (ZIBs) are considered to be exceptionally promising options for future energy storage technologies, owing to their cost-effectiveness, high energy storage capacity, and inherent safety features. However, the widespread utilization of ZIBs is constrained by several challenges, including the growth of zinc dendrites, undesired side reactions, hydrogen evolution reaction (HER), and electrolytes leakage. Researchers have investigated various solutions, among which solid state electrolytes (SSEs) have emerged as a particularly effective approach. To advance the development and application of SSEs, this review will first provide a comprehensive introduction to SSEs, emphasizing the synthesis and improvement methods of SSEs. In addition, the paper will examine the challenges encountered by SSEs and suggest potential strategies for their enhancement. Finally, it will evaluate the future outlook for the advancement of SSEs.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"139 ","pages":"Article 118765"},"PeriodicalIF":8.9,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270847","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}