Journal of Power Sources最新文献

Sizing of power storage and conversion components in a hybrid electric propulsion system for advanced air mobility

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-03-11 DOI: 10.1016/j.jpowsour.2025.236681

M. Dehghani , M.A. Baei , M. Khazaee , F. Zahedifar , A.G. Khoee

{"title":"Sizing of power storage and conversion components in a hybrid electric propulsion system for advanced air mobility","authors":"M. Dehghani , M.A. Baei , M. Khazaee , F. Zahedifar , A.G. Khoee","doi":"10.1016/j.jpowsour.2025.236681","DOIUrl":"10.1016/j.jpowsour.2025.236681","url":null,"abstract":"<div><div>The electric vertical take-off and landing (eVTOL) aircraft will change the future of transportation. This will happen when the pulse-power modes during the vertical flight which needs about 4 to 6 times higher power, are treated appropriately. This paper addresses the design and simulation of hybrid electric propulsion systems that could deliver power for a practical flight envelope. The paper proposes a generic design cycle with realistic modeling of component dynamics to match a combination of power storage, engine-generator, and axial flux motor with a multi-propeller configuration. To solve this system design problem, a hybrid battery-ultracapacitor-generator architecture combines high energy density from battery, high power density from ultracapacitor, and range extension by engine-generator. This unified design includes a pulse-load-optimized sizing process tailored to eVTOL operational profiles and reduces C-rate peak while providing the energy needed for flight endurance. This is realized by integration of an interleaved non-inverting buck-boost converter which is designed based on hover requirements and maximum C-rate per DC bus voltage. The performance of proposed converter in maximum inductor current and voltage gain evaluated by comparative simulations on 400 distinct voltage combinations under optimal soft-switching operation. The results show that the battery lifetime and specific power storage are successfully addressed.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"640 ","pages":"Article 236681"},"PeriodicalIF":8.1,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593808","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 K0.5Mn2O4 hollow nano-spheres cathode for aqueous zinc ion battery

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-03-11 DOI: 10.1016/j.jpowsour.2025.236746

Yuan Meng , Pan Su , Shang Gao , Yingjin Wei , Xuejian Shi

{"title":"Enhanced K0.5Mn2O4 hollow nano-spheres cathode for aqueous zinc ion battery","authors":"Yuan Meng , Pan Su , Shang Gao , Yingjin Wei , Xuejian Shi","doi":"10.1016/j.jpowsour.2025.236746","DOIUrl":"10.1016/j.jpowsour.2025.236746","url":null,"abstract":"<div><div>Aqueous zinc ion batteries (AZIBs) have been looked upon as the most prospective energy storage systems, primarily because of their notable advantages of enhanced safety and cost-effectiveness. Manganese based materials are among the best choices for AZIBs by the reason of the considerable theoretical capacity and the appropriate operating voltage. Unfortunately, the intrinsic unsatisfactory electrical conductivity and collapse of crystal structure in electrochemical reaction process hamper the development of the materials. Here, we prepared layered K<sub>0.5</sub>Mn<sub>2</sub>O<sub>4</sub>•1.84H<sub>2</sub>O hollow nano-spheres (MCHS@K<sub>0.5</sub>Mn<sub>2</sub>O<sub>4</sub>) with abundant oxygen defects through hydrothermal process and evaluated their electrochemical properties in AZIBs. Using various characterization and analysis techniques, we found that mesoporous carbon hollow spheres (MCHS) provide a stable electronic conducting framework for K<sub>0.5</sub>Mn<sub>2</sub>O<sub>4</sub>. The oxygen defects generated during the synthesis process can be filled by O<sup>2−</sup> from irreversibly intercalated H<sub>2</sub>O, weakening the interaction between guest ion and host material. This leads to an increase in ionic diffusion coefficients by 2–3 orders of magnitude, thereby enhancing ion migration ability. Under the synergistic effect of the enhanced electronic and ionic transport properties, MCHS@K<sub>0.5</sub>Mn<sub>2</sub>O<sub>4</sub> delivers a high specific capacity of 251 mAh g<sup>−1</sup> and excellent cycling stability with a low capacity fading rate of 0.47 ‰ per cycle.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"640 ","pages":"Article 236746"},"PeriodicalIF":8.1,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593802","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

Mechanical stress-driven electrochemical thermal model for graphite-silicon blended composite anode in lithium-ion battery

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-03-10 DOI: 10.1016/j.jpowsour.2025.236654

Xiaoniu Du , Song-Yul Choe , Brian J. Koch , Taylor R. Garrick

{"title":"Mechanical stress-driven electrochemical thermal model for graphite-silicon blended composite anode in lithium-ion battery","authors":"Xiaoniu Du , Song-Yul Choe , Brian J. Koch , Taylor R. Garrick","doi":"10.1016/j.jpowsour.2025.236654","DOIUrl":"10.1016/j.jpowsour.2025.236654","url":null,"abstract":"<div><div>The graphite-silicon blended anodes are increasingly employed due to their high power and energy density. The electrochemical and mechanical hysteresis, heat generation rate (HGR) and energy efficiency of the blended anode have not been fully investigated. We propose a mechanical stress-driven composite anode model implemented on an electrochemical-thermal model platform for cylindrical-type lithium-ion batteries, which considers hydrostatic diffusion-induced stress on particle level, biaxial stress on electrode level, stress-induced overpotential and competing Butler-Volmer kinetics between graphite and silicon particles. The model is validated against the experimental terminal voltages and HGRs at different C-rates and temperatures, which enables analysis on the mechanical, electrochemical and thermal behaviors induced by silicon component. The results show that the stress within anode particles is dependent upon not only Li<sup>+</sup> concentration but also concentration gradient. The hydrostatic stress within silicon particles is notably larger than graphite, which drives a silicon-dominated reaction in low-SOC range, and consequently causes a voltage hysteresis majorly at low SOC. Tuning the graphite-silicon volume ratio as a model parameter, the impacts of the addition of silicon on the voltage and HGR are predicted and investigated. Estimatedly ∼25 % of the cell-level HGR is contributed by the 4 % silicon in low-SOC range at 1C operations.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"640 ","pages":"Article 236654"},"PeriodicalIF":8.1,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143576821","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

Ionic transport regulation separator co-functionalized by conductive nanoparticles and nonconductive nanorods for high performance lithium battery

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-03-10 DOI: 10.1016/j.jpowsour.2025.236725

Yuexi Liang, Jialu Wu, Shuangyang Cai, Haipeng Ren, Bin Wu, Yingzi Hua, Zhenzhen Wei, Yan Zhao

{"title":"Ionic transport regulation separator co-functionalized by conductive nanoparticles and nonconductive nanorods for high performance lithium battery","authors":"Yuexi Liang, Jialu Wu, Shuangyang Cai, Haipeng Ren, Bin Wu, Yingzi Hua, Zhenzhen Wei, Yan Zhao","doi":"10.1016/j.jpowsour.2025.236725","DOIUrl":"10.1016/j.jpowsour.2025.236725","url":null,"abstract":"<div><div>Endowing the separator with the ionic transport regulation capacity is one of the most effective approaches to tackle the lithium dendrite problem and enhance the battery performance. Based on the mechanism of promoting lithium ions to homogenously deposit, we develop a functionalized separator (PAW) that can simultaneously immobilize the anions and lessen cation solvation, by facilely blade-coating a polyolefin separator with a mixture of nonconductive attapulgite (ATP) nanorods and conductive tungsten trioxide (WO<sub>3</sub>) spherical nanoparticles. The composite separator has a higher porosity for electrolyte filling than the pure separator, and its electrolyte wettability and thermal stability are significantly improved by combining the advantages of the two inorganic nanoparticles. More importantly, the hybrid coating is able to modulate ionic transport, allowing lithium ions to rapidly pass through by adsorbing anions on the hydroxyl group of ATP and reducing the desolvation of lithium ions that primarily originates from the oxygen vacancies of WO<sub>3</sub>. Meanwhile, the uniform dispersion of conductive particles permits a consistent current distribution, which, in conjunction with controlled ionic transport, helps to prevent dendrite formation in the lithium anode. Consequently, the Li//Li cell assembled with the functional separator presents highly stable Li plating/stripping cycles for 800 h at 2 mA cm<sup>−2</sup>, and the Li//LiFePO<sub>4</sub> cell displays excellent cycle stability with a capacity retention of 74 % after 1000 cycles at 5C, suggesting the potential of the functional separator as a competitive candidate for lithium batteries.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"640 ","pages":"Article 236725"},"PeriodicalIF":8.1,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143576831","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 battery microscopic stress model towards state of health estimation of lithium-ion batteries

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-03-10 DOI: 10.1016/j.jpowsour.2025.236707

Haohan Sun , Zhengjian Gu , Huanhuan Li , Haobin Jiang , Tiansi Wang , Yaping Wang , Lei Pei , Chaochun Yuan

{"title":"A novel battery microscopic stress model towards state of health estimation of lithium-ion batteries","authors":"Haohan Sun , Zhengjian Gu , Huanhuan Li , Haobin Jiang , Tiansi Wang , Yaping Wang , Lei Pei , Chaochun Yuan","doi":"10.1016/j.jpowsour.2025.236707","DOIUrl":"10.1016/j.jpowsour.2025.236707","url":null,"abstract":"<div><div>The study of battery health is closely related to battery safety. Accurately describing the status changes inside the battery can effectively prevent battery safety problems. In this paper, a novel method based on internal battery stress is proposed to improve the accuracy of health status assessment of lithium batteries. The dynamic equilibrium relationship of microscopic stress in the battery is obtained through the material transfer relationship and particle diffusion equation inside the battery material particles. Based on the mapping relationship between fatigue strength and stress of battery materials, the evaluation and prediction of battery health status are completed. The validity of the model is verified by the measured lithium battery data. The results show that the maximum stresses are 9.5/12/16 MPa respectively in 5 %/50 %/100 % DOD cycles. When the battery is in a static state, the initial stress is −0.5Mpa caused by structural differences in different areas. The model can track the cycle life of the battery well, and the overall prediction error is kept within 3.5 %.The method demonstrates high performance.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"640 ","pages":"Article 236707"},"PeriodicalIF":8.1,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593805","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

Fly ash as a high-capacity, high-rate performance, and low-cost cathode material for lithium-sulfur batteries

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-03-10 DOI: 10.1016/j.jpowsour.2025.236738

Rensheng Li , Zijuan Xie , You Zhou , Wanlin Wang , Xiahui Gui

{"title":"Fly ash as a high-capacity, high-rate performance, and low-cost cathode material for lithium-sulfur batteries","authors":"Rensheng Li , Zijuan Xie , You Zhou , Wanlin Wang , Xiahui Gui","doi":"10.1016/j.jpowsour.2025.236738","DOIUrl":"10.1016/j.jpowsour.2025.236738","url":null,"abstract":"<div><div>Lithium-sulfur batteries with a higher theoretical specific capacity (1675 mA h g<sup>−1</sup>) and a higher energy density (2600 W h kg<sup>−1</sup>) are considered to be the next-generation energy storage system. However, lithium-sulfur batteries have disadvantages for poor cycle performance, low Coulomb efficiency, and low utilization of active materials. Therefore, the graphene-fly ash-sulfur composite cathode materials are prepared for lithium-sulfur batteries to improve the performance in this study, and the performances of lithium-sulfur batteries with different fly ash doping levels are analyzed. The results show that the cycle stability and high-rate performance of the composite material after adding fly ash are significantly improved. When the composite material with 5 % fly ash cycles 100 times at 0.2 C and 0.5 C current density, its reversible specific capacity can reach 416.8 mA h g<sup>−1</sup> and 524 mA h g<sup>−1</sup>, the cycle efficiency is 98.3 % and 90.6 %, and the capacity retention rate is 56.2 % and 78.8 % respectively, indicating that the composite material has good cycle stability under high-rate conditions. Furthermore, the adsorption experiments and the density functional theory (DFT) calculation of the fly ash to Li<sub>2</sub>S<sub><em>x</em></sub> indicate that the shuttle effect of the polysulfide is inhibited by fly ash particles mainly through ion adsorption and intermolecular force.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"640 ","pages":"Article 236738"},"PeriodicalIF":8.1,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143576824","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

Design and optimization of a novel flow field structure to improve the comprehensive performance of vanadium redox flow batteries

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-03-10 DOI: 10.1016/j.jpowsour.2025.236736

Zebo Huang , Yilin Liu , Xing Xie , Jianjun Wu , Yusen Deng , Zhonggang Xiong , Longxing Wu , Zhen Li , Qian Huang , Yangsheng Liu , Yi Luo , Cheng Zhang

{"title":"Design and optimization of a novel flow field structure to improve the comprehensive performance of vanadium redox flow batteries","authors":"Zebo Huang , Yilin Liu , Xing Xie , Jianjun Wu , Yusen Deng , Zhonggang Xiong , Longxing Wu , Zhen Li , Qian Huang , Yangsheng Liu , Yi Luo , Cheng Zhang","doi":"10.1016/j.jpowsour.2025.236736","DOIUrl":"10.1016/j.jpowsour.2025.236736","url":null,"abstract":"<div><div>Vanadium redox flow battery (VRFB) is an essential technology for realizing large-scale, long-term energy storage. Among its components, the flow field structure plays a crucial factor affecting the battery performance. So far, there still exists uneven electrolyte distribution leading to low efficiency. To this end, inspired by the excellent nutrient transfer process of leaf veins in nature, this work proposed a flow field design of bionic leaf veins and innovatively adds obstructions in the main channel, with the aim of utilizing the diversion effect to substantially enhance the electrolyte's distribution uniformity and the mass transfer capability. Next, the validity of the model is verified by simulation, and a single cell is fabricated for experimental verification with multiple charge-discharge cycles. The analyzed results show that the energy efficiency (EE) of this study is improved by 1.983 % under the same conditions compared to the serpentine flow field. The design mechanism, which effectively improves the transport characteristics of the active material in the VRFB, serves as a reference for future flow field structure designs.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"640 ","pages":"Article 236736"},"PeriodicalIF":8.1,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593806","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

Research progress on diluents of localized high-concentration electrolytes for high performance lithium metal batteries

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-03-10 DOI: 10.1016/j.jpowsour.2025.236704

Wenjing Ni , Junjie Lu , Yuan Yang , Wanglei Chen , Yunpeng Fu , Zhiye Yuan , Yongkang Han , Jinglun Wang

{"title":"Research progress on diluents of localized high-concentration electrolytes for high performance lithium metal batteries","authors":"Wenjing Ni , Junjie Lu , Yuan Yang , Wanglei Chen , Yunpeng Fu , Zhiye Yuan , Yongkang Han , Jinglun Wang","doi":"10.1016/j.jpowsour.2025.236704","DOIUrl":"10.1016/j.jpowsour.2025.236704","url":null,"abstract":"<div><div>Recently, localized high-concentration electrolytes (LHCEs) has been emerged as the next-generation electrolytes for higher power and energy density rechargeable batteries. Except for reduced viscosity and cost, LHCEs maintain the unique solvation structure and good interfacial compatibility of high-concentration electrolytes. The diluent, which is miscible with the parent concentrated electrolyte but does not coordinate with lithium cations, can not only optimize the physicochemical properties but also regulate the solvation structures of LHCEs. In this review, the recent research progress on diluents is comprehensive reviewed, focusing on their basic parameters and design principles, their molecular structure and application, their structure-function relationship, and future direction. Basic theory and principles of design novel diluent involve Kamlet-Taft Lewis basicity (β), electronic transition energy (<span><math><mrow><msubsup><mi>E</mi><mi>T</mi><mi>N</mi></msubsup></mrow></math></span>), donor number (DN) and maximum electrostatic potential (ESP<sub>max</sub>), which are summarized in detail. Subsequently, according to the molecular structure of diluent, fluorinated linear ethers, fluorinated cyclic ethers, fluoroaromatic hydrocarbons, fluorinated esters, non-fluorinated diluents are systematically discussed, with a focus on the relationship between the molecular structures and cell performances. At last, this review is concluded with a proposal of the future direction on diluents for advanced LHCEs.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"640 ","pages":"Article 236704"},"PeriodicalIF":8.1,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593804","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

Tailoring the NaI-rich solid electrolyte interphase for enhanced stability in sodium metal batteries

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-03-10 DOI: 10.1016/j.jpowsour.2025.236733

Muhammad Ali , Sikandar Iqbal , Moazzam Ali , Samia Aman , Aadil Nabi Chishti , Jiahui Zhang , Zeyu Shen , Huiqin Huang , Muhammad Yousaf , Yinzhu Jiang

{"title":"Tailoring the NaI-rich solid electrolyte interphase for enhanced stability in sodium metal batteries","authors":"Muhammad Ali , Sikandar Iqbal , Moazzam Ali , Samia Aman , Aadil Nabi Chishti , Jiahui Zhang , Zeyu Shen , Huiqin Huang , Muhammad Yousaf , Yinzhu Jiang","doi":"10.1016/j.jpowsour.2025.236733","DOIUrl":"10.1016/j.jpowsour.2025.236733","url":null,"abstract":"<div><div>Unlocking the potential of sodium metal batteries (SMBs) depends on the formation of a mechanically robust and ionically conductive solid electrolyte interphase (SEI) that prevents dendrite formation and maintains peak performance under challenging conditions. Our study presents an effective electrolyte additive called cetyltrimethylammonium iodide (CTAI), designed to enhance the durability of SEI by enriching it with a NaI-rich composition, I<sup>−</sup> anion reduces surface diffusion barriers for sodium ions while boasting impressive ionic conductivity of 18 mS cm<sup>−1</sup>, whereas CTA<sup>+</sup> cation suppresses the dendrite formation on the sodium metal anodes (SMAs). Notably, the resulting SEI exhibits a thickness of ∼40 nm. Benefiting from the additive, the Na||Na symmetrical cell demonstrates remarkable cycling stability over 5000 h and minimal overpotential of around 35 mV under current density of 2 mA cm<sup>−2</sup> and capacity of 2 mAh cm<sup>−2</sup>. Furthermore, our findings indicate significant enhancements in cycling stability and rate capability for Na-S batteries. Thus, our work represents a notable advancement in sodium metal batteries, offering a transformative approach to establishing stable SEIs and dendrite-free SMAs.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"640 ","pages":"Article 236733"},"PeriodicalIF":8.1,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593803","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

An improved data-driven approach and a voltage integral indicator for remaining useful life estimation of proton exchange membrane fuel cells

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-03-10 DOI: 10.1016/j.jpowsour.2025.236726

Yaolin Dong , Wei Wang , Yuan Cao , Mengke Cao , Xinyao Zhou , Xiaoshuang Hou

{"title":"An improved data-driven approach and a voltage integral indicator for remaining useful life estimation of proton exchange membrane fuel cells","authors":"Yaolin Dong , Wei Wang , Yuan Cao , Mengke Cao , Xinyao Zhou , Xiaoshuang Hou","doi":"10.1016/j.jpowsour.2025.236726","DOIUrl":"10.1016/j.jpowsour.2025.236726","url":null,"abstract":"<div><div>Facing the issues of high cost and low durability, remaining useful life (RUL) prediction is essential to improve the reliability of proton exchange membrane fuel cells (PEMFCs). However, health recovery phenomenon and periodic fluctuations in the measured data pose a challenge in accurate RUL estimation. In response to these problems, a PEMFC prognostics framework is proposed for degradation prediction and RUL estimation. In the framework, the original PEMFC degradation data are firstly processed thorough variational mode decomposition (VMD) to extract multi-scale aging information. Then, a data-driven method based on gated recurrent unit (GRU) and quantum-behaved particle swarm optimization (QPSO) is proposed to predict the PEMFC degradation trend. Ultimately, a voltage integral indicator is proposed for RUL estimation, so as to overcome the limitations of the existing indicator. Comprehensive validation on two long-term PEMFC durability test datasets are conducted to prove the effectiveness and robustness of the proposed framework. And the estimated RUL demonstrates exceptional precision.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"640 ","pages":"Article 236726"},"PeriodicalIF":8.1,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593807","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