Journal of Power Sources最新文献

Adsorption thermodynamics of methane reforming over solid oxide fuel cell anodes

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-07-23 DOI: 10.1016/j.jpowsour.2025.237905

Saeed Moarrefi , Mohammad Rajabi Naraki , Mohan Jacob , Nilay Shah , Stephen Skinner , Lichao Jia , Shou-Han Zhou , Weiwei Cai , Liyuan Fan

{"title":"Adsorption thermodynamics of methane reforming over solid oxide fuel cell anodes","authors":"Saeed Moarrefi , Mohammad Rajabi Naraki , Mohan Jacob , Nilay Shah , Stephen Skinner , Lichao Jia , Shou-Han Zhou , Weiwei Cai , Liyuan Fan","doi":"10.1016/j.jpowsour.2025.237905","DOIUrl":"10.1016/j.jpowsour.2025.237905","url":null,"abstract":"<div><div>Adsorption kinetics and thermodynamics on nickel base anode materials remain underexplored under reforming conditions when fuelled directly with methane. The kinetics determine how quickly and effectively reactant gases interact on the anode surfaces, affecting the behavior of subsequent electrochemical reactions. However, the complexity of these interactions under operating conditions have led to a limited number of detailed studies in this area. Thus, further investigation into adsorption kinetics could unlock new possibilities for optimizing fuel cell performance. This study examines the adsorption Gibbs free energy of reactants on the anode in solid oxide fuel cell to assess the electrocatalyst activity. Our findings reveal that H<sub>2</sub>O exhibits more favorable adsorption conditions than CO<sub>2</sub> on the catalyst surface, and increased temperature and current density lead to different surface adsorption behaviours. The results show that steam reforming prevents coke formation on the fuel cell anode more effectively than dry reforming. This proposed method can also be used to examine the coke resistance and the performance of anode structures during the investigation and development stages for fuel cell research. The study provides valuable insights into anode performance and offers a foundation for future advancements in SOFC technology.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"655 ","pages":"Article 237905"},"PeriodicalIF":8.1,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686776","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

Advances in inorganic anode materials and progress in sodium-ion batteries: a comprehensive review

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-07-23 DOI: 10.1016/j.jpowsour.2025.237945

Tanya Dagar , Rajkamal Arya , Ankush Kumar Singh , Anil Kumar Sinha

{"title":"Advances in inorganic anode materials and progress in sodium-ion batteries: a comprehensive review","authors":"Tanya Dagar , Rajkamal Arya , Ankush Kumar Singh , Anil Kumar Sinha","doi":"10.1016/j.jpowsour.2025.237945","DOIUrl":"10.1016/j.jpowsour.2025.237945","url":null,"abstract":"<div><div>The intermittent nature of renewable energy sources, like solar, wind etc., require efficient and reliable electrical energy storage devices. Currently, the search for a substitute for Lithium-Ion Batteries (LIBs) has been ongoing due to the high-cost, restricted supply, and safety concerns. Since Na is more plentiful, less expensive and safer than Li, Sodium-Ion Batteries (SIBs) have been proposed as a LIB substitute, in applications where weight and size of batteries are less important. Among the components of rechargeable batteries, anode is the most important, which has maximum impact on the performance of the battery. Poor life cycle and lower energy density of SIBs are attributed to heavier and larger Na<sup>+</sup>-ions compared to Li<sup>+</sup>-ions. Numerous attempts have been undertaken to enhance the electrochemical performance of SIBs with various anode materials. In this paper, we present a comprehensive review of inorganic anode materials for SIBs. Based on the mechanism for charge storage, the paper is divided in to i) intercalation, ii) conversion/conversion-intercalation, iii) alloying and iv) adsorption/redox (MOF) based anode materials. These sections are subdivided in subsections on specific anode materials. A mini-section on full cell SIB studies has been included. Finally, a brief summary of the review and future suggestions on research directions consisting of innovations on the existing materials, innovative new materials and advanced characterization techniques as well as theoretical calculations to understand the charge storage and anode degradation on repeated cycling in more detail, are discussed.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"655 ","pages":"Article 237945"},"PeriodicalIF":8.1,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686780","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

Improving power quality and active support: Optimal scheduling of wind-solar-storage system considering supercapacitors-based voltage drop optimization strategy

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-07-23 DOI: 10.1016/j.jpowsour.2025.237953

Jiong Shen , Hong-Lin Li , Jin-Tian Gao , Yu Tang

{"title":"Improving power quality and active support: Optimal scheduling of wind-solar-storage system considering supercapacitors-based voltage drop optimization strategy","authors":"Jiong Shen , Hong-Lin Li , Jin-Tian Gao , Yu Tang","doi":"10.1016/j.jpowsour.2025.237953","DOIUrl":"10.1016/j.jpowsour.2025.237953","url":null,"abstract":"<div><div>As large-scale renewable energy sources such as wind and photovoltaic power are integrated into the power grid, the inertia level and disturbance rejection capability of the power system gradually decline, leading to increasingly severe voltage stability issues within the system. Therefore, this paper proposes a voltage drop loss optimization strategy based on supercapacitors to achieve active support and optimization of voltage drop loss reduction in the system, thereby enhancing the frequency regulation capability and operational stability of microgrid systems. First, supercapacitors are introduced into the microgrid system, and the locations of their integration and their switching capacities are optimized to realize active support and optimization of voltage drop loss reduction. Second, an improved Great Wall Construction Algorithm, enhanced by a chaotic weighted dynamic exploration optimization strategy, is proposed. This approach integrates nonlinear dynamics with a random walk model to bolster the randomness and mutation in the algorithm's search process, thus improving its global search capability and ability to escape local optimal solutions. The results demonstrate that the proposed strategy can effectively enhance power quality. Specifically, for a microgrid system composed of IEEE-33 nodes, the system voltage drop loss improves from −26.2778 to 9.3835, and the cost of purchasing electricity from external sources decreases by 14.53 %.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"655 ","pages":"Article 237953"},"PeriodicalIF":8.1,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686777","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 full-wave multifunctional battery equalization circuit based on inductor-inductor-capacitor converter for battery strings

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-07-23 DOI: 10.1016/j.jpowsour.2025.237891

Xudong Yang , Yaoting Shi , Xiaoqi Zhang , Pengcheng Li , Yonggang Liu , Yi Tang , Zheng Chen , Zhijian Liu

{"title":"A full-wave multifunctional battery equalization circuit based on inductor-inductor-capacitor converter for battery strings","authors":"Xudong Yang , Yaoting Shi , Xiaoqi Zhang , Pengcheng Li , Yonggang Liu , Yi Tang , Zheng Chen , Zhijian Liu","doi":"10.1016/j.jpowsour.2025.237891","DOIUrl":"10.1016/j.jpowsour.2025.237891","url":null,"abstract":"<div><div>The circuit functionality and integration level are increasingly important for current battery management systems. However, a relatively big circuit size and single circuit functionality are common in existing equalization circuits (ECs). An integrated, multifunctional, inductor-inductor-capacitor (LLC)-converter-based EC is therefore proposed in this work to explore the possible improvement in the circuit functionality of ECs. The equalization of battery-cell voltages and the conversion of battery-string voltage are both realized in the proposed EC by the combination of the equalization circuit and the converter circuit. This makes the proposed EC multifunctional: DC-voltage conversion and the equalization. The working principle and equalization characteristic of the proposed EC are analyzed, and the simulations and a prototype of the proposed EC, according to the design considerations drawn from the analyses, are built to verify the effectiveness and feasibility of the proposed EC. Next, a comparison study to evaluate the advantages and disadvantages of the proposed EC is done. The comparison and experiment results finally demonstrate the effectiveness and advantages of the proposed EC.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"655 ","pages":"Article 237891"},"PeriodicalIF":8.1,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686778","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 thermodynamic framework to rapidly determine remaining discharge time in Li-ion batteries

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-07-23 DOI: 10.1016/j.jpowsour.2025.237922

K.P. Lijesh, M.M. Khonsari

引用次数: 0

Design and scaling hybrid hard carbon electrodes to balance energy and power performance in Sodium-ion batteries

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-07-23 DOI: 10.1016/j.jpowsour.2025.237963

K. Bhawana, Manoj Gautam, Govind Kumar Mishra, Dhruv Kumar, Sagar Mitra

{"title":"Design and scaling hybrid hard carbon electrodes to balance energy and power performance in Sodium-ion batteries","authors":"K. Bhawana, Manoj Gautam, Govind Kumar Mishra, Dhruv Kumar, Sagar Mitra","doi":"10.1016/j.jpowsour.2025.237963","DOIUrl":"10.1016/j.jpowsour.2025.237963","url":null,"abstract":"<div><div>Achieving both high energy and power density in a single Sodium-ion battery system remains a major challenge, as conventional designs often trade one for the other. This study addresses this gap by introducing a hybrid hard carbon (HHC) strategy that blends micro and nano-sized hard carbon particles to optimize electrode structure and performance. By systematically tuning particle size ratios, the work demonstrates how key electrode parameters, such as porosity and tortuosity, directly influence initial Coulombic efficiency, rate capability, and long-term stability. Among the various configurations, the HHC5050 electrode (50 % microparticles and 50 % nanoparticles, ∼2.5 mg/cm<sup>2</sup>) offers a well-balanced profile, delivering excellent reversibility (∼87.7 % capacity retention after 500 cycles), and favorable ion transport (theoretical tortuosity ∼1.25; experimental ∼10.3). It maintains ∼171.6 mAh g<sup>−1</sup> at 2C (∼54 % of the 0.1C capacity) and shows stable interfacial behavior confirmed by time-dependent electrochemical impedance and distribution of relaxation time analyses. When scaled to a high mass loading (∼13.6 mg/cm<sup>2</sup>), it retains ∼90 % of its initial capacity after 100 cycles with minimal performance loss. Importantly, the study bridges material-level optimization to practical implementation, demonstrating projected excellent full-cell performance with various cathodes. Paired with a Prussian blue analogue, the optimized HHC anode achieves projected energy densities of ∼453.2 Wh/kg (electrode level) and ∼175.8 Wh/kg (pouch cell level). These findings position the HHC5050 electrode as a viable and scalable anode design for future Sodium-ion batteries targeting mid-range electric vehicles and energy storage systems.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"655 ","pages":"Article 237963"},"PeriodicalIF":8.1,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686781","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

High spatial resolution neutron imaging of lithium-ion batteries: Correlating microstructure and lithium transport 锂离子电池的高空间分辨率中子成像：相关微观结构和锂输运

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-07-22 DOI: 10.1016/j.jpowsour.2025.237765

Megan Gober , Joseah Amai , James R. Torres , Yuxuan Zhang , Jean-Christophe Bilheux , Hassina Z. Bilheux , Gabriel Demeneghi , Shimin Tang , Griffin Smith , George J. Nelson

{"title":"High spatial resolution neutron imaging of lithium-ion batteries: Correlating microstructure and lithium transport","authors":"Megan Gober , Joseah Amai , James R. Torres , Yuxuan Zhang , Jean-Christophe Bilheux , Hassina Z. Bilheux , Gabriel Demeneghi , Shimin Tang , Griffin Smith , George J. Nelson","doi":"10.1016/j.jpowsour.2025.237765","DOIUrl":"10.1016/j.jpowsour.2025.237765","url":null,"abstract":"<div><div>Thick electrodes for lithium-ion batteries can increase the overall energy density, but increasing the electrode thickness introduces charge transport limitations. These limitations may be mitigated through proper electrode structuring. High spatial resolution neutron imaging was used to understand the correlation between microstructure and lithium transport in lithium-ion anodes. Batteries with distinct graphite anode microstructures were produced and studied with high spatial resolution in operando neutron radiography to observe the effects of structure on transport. High spatial resolution neutron computed tomography was performed following in operando neutron radiography. X-ray computed tomography and scanning electron microscopy were used to observe the finer scale anode structure to complement neutron imaging. Solvent-free anodes containing a tightly-packed layered structure confined lithium movement close to the separator. This structure limited capacity, but supported better rate capability. Conversely, a more open pore structure in the wet cast anodes yielded higher capacity with reduced rate capability. Together, these results show that lithium distributions can be controlled by the macroscopic structure of the electrodes, the microstructural pore network, and the microscale active areas that support electrochemical reactions. Furthermore, multimodal imaging applying the complementary strengths of neutron and X-ray methods is shown as a tool for advancing battery design.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"655 ","pages":"Article 237765"},"PeriodicalIF":8.1,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679690","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 novel method for suppressing thermal stress in high-temperature thermoelectric modules 一种抑制高温热电模块热应力的新方法

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-07-22 DOI: 10.1016/j.jpowsour.2025.237948

Hongrui Ren, Chunping Niu, Hailong He, Youqun Li, Tianyi Liu, Jingbo Gao, Yi Wu, Mingzhe Rong

{"title":"A novel method for suppressing thermal stress in high-temperature thermoelectric modules","authors":"Hongrui Ren, Chunping Niu, Hailong He, Youqun Li, Tianyi Liu, Jingbo Gao, Yi Wu, Mingzhe Rong","doi":"10.1016/j.jpowsour.2025.237948","DOIUrl":"10.1016/j.jpowsour.2025.237948","url":null,"abstract":"<div><div>Thermoelectric (TE) module enabling direct conversion of thermal energy into electrical energy, is characterized by its static operation, maintenance-free nature, and high reliability. It serves as a critical core component in high-temperature waste heat recovery systems and radioisotope TE generators. Half-Heusler (HH) alloy, with its excellent mechanical properties and high-temperature stability, holds potential for application in such modules. To ensure long-term stable operation of HH TE module under high temperatures, the selection of an appropriate diffusion barrier layer is essential. However, the introduction of the barrier layer intensifies thermal stress, leading to cracks on the TE legs. To address the thermal stress issue, this study proposes a novel method of filling the gaps between TE legs (FGT-Method) for thermal stress suppression. Simulations demonstrate that this approach improves the thermal stress distribution within the TE legs, reducing the maximum thermal stress to less than 70 % of that without the filler. Aging tests on TE module reveal that modules fabricated using the FGT-Method maintain stable TE leg resistance during aging, with only a slight decline in output performance. The filler effectively mitigates the impact of thermal stress in high-temperature TE module. This study provides valuable insights for the fabrication of high-temperature TE module.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"655 ","pages":"Article 237948"},"PeriodicalIF":8.1,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680125","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

Optimal parameter estimation of proton exchange membrane fuel cells utilizing training-imitation strategy and coronavirus mask protection optimizer 基于训练-模仿策略和冠状病毒防护优化器的质子交换膜燃料电池最优参数估计

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-07-22 DOI: 10.1016/j.jpowsour.2025.237913

Mengjiao Niu, Yong Zhao, Yongliang Yuan

引用次数: 0

A transformer-based hybrid method with multi-feature for lithium battery remaining useful life prediction 基于变压器的锂电池剩余使用寿命多特征混合预测方法

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-07-22 DOI: 10.1016/j.jpowsour.2025.237844

Yixin Zhou , Zhaojun Li , Ming Zhao , Fangming Wu , Tongyu Yang

{"title":"A transformer-based hybrid method with multi-feature for lithium battery remaining useful life prediction","authors":"Yixin Zhou , Zhaojun Li , Ming Zhao , Fangming Wu , Tongyu Yang","doi":"10.1016/j.jpowsour.2025.237844","DOIUrl":"10.1016/j.jpowsour.2025.237844","url":null,"abstract":"<div><div>During the cyclic aging process of lithium batteries, the capacity degradation exhibits significant non-stability and randomness due to external influences and their physical and chemical reactions. In this paper, a Transformer-based multi-feature decomposition prediction method is proposed for estimating the remaining useful life (RUL) of lithium batteries. For this study, the method utilizes the average discharge current, discharge voltage, battery temperature, discharge time, and discharge capacity from each charge–discharge cycle. Subsequently, the data is processed using Savitzky–Golay filtering (SGF) during the preprocessing stage. Some of the multi-feature data (current, voltage, battery temperature, and discharge time) are decomposed using the CEEMDAN method to obtain intrinsic mode function (IMF) components, and the theoretical capacity is calculated for prediction. Finally, the prediction is conducted using the Transformer network. The superiority of the proposed method is verified by comparing the evaluation metrics of the proposed method (SGF-CEEMDAN-Transformer) with other baseline prediction models and ablation experiments.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"655 ","pages":"Article 237844"},"PeriodicalIF":8.1,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680122","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