Journal of Power Sources最新文献_第10页

Optimizing renewable energy use in residential buildings: A comprehensive study of intelligent systems 住宅建筑中可再生能源使用的优化：智能系统的综合研究

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-05-21 DOI: 10.1016/j.jpowsour.2025.237241

Shengnan Li , Yan He , Fadhila Hamza , Bobur urinov , Defa Cai

{"title":"Optimizing renewable energy use in residential buildings: A comprehensive study of intelligent systems","authors":"Shengnan Li , Yan He , Fadhila Hamza , Bobur urinov , Defa Cai","doi":"10.1016/j.jpowsour.2025.237241","DOIUrl":"10.1016/j.jpowsour.2025.237241","url":null,"abstract":"<div><div>This study explores the integration of intelligent systems with renewable energy technologies to optimize energy use in residential buildings, with a particular focus on hydrogen production as a complementary energy storage and fuel solution. Using South Africa as a case study—owing to its abundant renewable resources and persistent energy security challenges—the research presents a comprehensive technological and economic framework for coupling residential-scale solar and wind power systems with hydrogen generation and refueling infrastructure. An advanced optimization model incorporating cost parameters, discount rates, and uncertainties in resource availability is employed to identify cost-effective and sustainable configurations. Three system setups are evaluated: standalone photovoltaic (PV), standalone wind, and hybrid PV-wind systems. Simulation results reveal that all configurations significantly reduce greenhouse gas emissions, lower total energy costs, minimize exposure to carbon taxes, and enable surplus energy export to the grid. Levelized costs of electricity (LCOE) for robust solutions range between 0.07190 and 0.1127 $/kWh, while deterministic models yield LCOEs between 0.0704 and 0.0788 $/kWh. The study identifies optimal hydrogen production scenarios that enhance system efficiency and economic viability. Furthermore, it analyzes how regional variables such as climate and economic conditions influence system performance, offering insights for tailoring intelligent renewable energy solutions to diverse residential contexts. This research underscores the potential of integrating intelligent energy systems with renewable technologies to create resilient, low-carbon residential energy infrastructures.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"647 ","pages":"Article 237241"},"PeriodicalIF":8.1,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144105974","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

Development of a cloud-based toolchain for data science in fuel cell vehicles 开发基于云的燃料电池汽车数据科学工具链

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-05-21 DOI: 10.1016/j.jpowsour.2025.237276

Julian Nicolas Toussaint , Simon Mertes , Marvin Schmidt , Stefan Sterlepper , Marius Walters , Stefan Pischinger

{"title":"Development of a cloud-based toolchain for data science in fuel cell vehicles","authors":"Julian Nicolas Toussaint , Simon Mertes , Marvin Schmidt , Stefan Sterlepper , Marius Walters , Stefan Pischinger","doi":"10.1016/j.jpowsour.2025.237276","DOIUrl":"10.1016/j.jpowsour.2025.237276","url":null,"abstract":"<div><div>The availability of large-scale data and advanced analysis tools offers great potential for next-generation fuel cell systems. However, integrating real-world measurement data into modeling frameworks remains challenging. To address this, a cloud-based toolchain was developed for continuous data acquisition, processing, storage, and simulation within a digital twin. It enables scalable testing and refinement of various modeling approaches. The toolchain comprises a cloud infrastructure, a Python-based fuel cell model, and automated data workflows. A data logger transmits filtered vehicle data to a cloud buffer, where it is decrypted, compressed, and stored. Selected data feeds a cloud simulation whose results are aligned with real data for model validation. By updating parameters continuously, the digital twin reflects system changes in real time, supporting diagnostics and long-term monitoring. As a proof of concept, the toolchain was applied to fuel cell degradation in vehicles. Its modular design enables predictive maintenance, optimization, and performance analysis. The cloud-based setup ensures scalability and continuous, data-driven model improvement.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"648 ","pages":"Article 237276"},"PeriodicalIF":8.1,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144105406","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

Characterisation of mass transport in mesh-type flow-field based polymer electrolyte membrane water electrolysers by neutron imaging 网格型流场聚合物电解质膜式电解槽中质量输运的中子成像表征

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-05-21 DOI: 10.1016/j.jpowsour.2025.237396

Y. Wu , Y. Wen , I. Malone , A. Tengattini , L. Helfen , J. Johnstone-Hack , J. Majasan , Y. Li , Y. Han , Q. Li , W. Chen , A.J.E. Rettie , P.R. Shearing , D.J.L. Brett , R. Jervis

{"title":"Characterisation of mass transport in mesh-type flow-field based polymer electrolyte membrane water electrolysers by neutron imaging","authors":"Y. Wu , Y. Wen , I. Malone , A. Tengattini , L. Helfen , J. Johnstone-Hack , J. Majasan , Y. Li , Y. Han , Q. Li , W. Chen , A.J.E. Rettie , P.R. Shearing , D.J.L. Brett , R. Jervis","doi":"10.1016/j.jpowsour.2025.237396","DOIUrl":"10.1016/j.jpowsour.2025.237396","url":null,"abstract":"<div><div>Flow-fields are essential for effective mass transport in polymer electrolyte membrane water electrolysers (PEMWEs). However, conventional flow-fields often face challenges in achieving reactant homogeneity across the full area of the electrode. This study explores the mass transport characteristics of PEMWEs using a mesh-type flow-field, analysed through neutron imaging and electrochemical impedance spectroscopy. The mesh-type design demonstrates superior cell performance and lower mass transport resistance compared to the conventional parallel design under the conditions tested. Neutron imaging results show that the mesh-type flow-field achieves a more uniform water distribution across the active area, as indicated by significantly lower standard deviations in water thickness. In contrast, the parallel design experiences a more rapid decline in the fraction of water remaining in the flow-field area (indicating a significant build-up of gas bubbles and heterogeneity of available reactant water). This uniformity in water distribution, along with efficient gas transport, facilitates more effective electrochemical reactions, resulting in a ∼5 % reduction in cell potential at a current density of 1000 mA cm<sup>−2</sup> compared to the parallel design. These findings highlight the advantages of the mesh-type flow-field in addressing mass transport challenges, positioning it as a promising solution for a wide range of PEMWE applications.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"648 ","pages":"Article 237396"},"PeriodicalIF":8.1,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144105561","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

Metal Co exsolution for catalyst design and electrochemical enhancement of non-stoichiometric solid oxide fuel cell cathodes 金属Co溶解用于非化学计量固体氧化物燃料电池阴极的催化剂设计和电化学增强

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-05-21 DOI: 10.1016/j.jpowsour.2025.237402

Jeong Yun Park , Yu Taek Hong , Yu Ri Lim , Abul K. Azad , Bohyun Ryu , Jung Hyun Kim

{"title":"Metal Co exsolution for catalyst design and electrochemical enhancement of non-stoichiometric solid oxide fuel cell cathodes","authors":"Jeong Yun Park , Yu Taek Hong , Yu Ri Lim , Abul K. Azad , Bohyun Ryu , Jung Hyun Kim","doi":"10.1016/j.jpowsour.2025.237402","DOIUrl":"10.1016/j.jpowsour.2025.237402","url":null,"abstract":"<div><div>In this study, the electrochemical properties of SmBa<sub>0.45</sub>Sr<sub>0.5</sub>(Co<sub>1-x</sub>Fe<sub>x</sub>)<sub>1.9</sub>O<sub>5+d</sub> (x = 0.3, 0.5, and 0.7) (SBSCF 1.9 oxide systems) and SmBa<sub>0.5</sub>Sr<sub>0.48</sub>(Co<sub>1-x</sub>Fe<sub>x</sub>)<sub>2.05</sub>O<sub>5+d</sub> (x = 0.3, 0.5, and 0.7) (SBSCF 2.05 oxide systems) are analyzed as a function of Fe substitution. Significantly, the phenomenon of Co exsolution in an oxidizing atmosphere is observed and its impact on electrochemical properties is analyzed in detail. The differences in the microstructure of exsolved Co particles, induced by the formation of oxygen vacancies resulting from compositional changes, are analyzed. Additionally, the mechanism underlying Co exsolution is elucidated.</div><div>SmBa<sub>0.45</sub>Sr<sub>0.5</sub>(Co<sub>0.7</sub>Fe<sub>0.3</sub>)<sub>1.9</sub>O<sub>5+d</sub> (SBSCF 1.9–0.3) forms a greater number of smaller exsolved Co particles compared to SmBa<sub>0.5</sub>Sr<sub>0.48</sub>(Co<sub>0.5</sub>Fe<sub>0.5</sub>)<sub>2.05</sub>O<sub>5+d</sub> (SBSCF 2.05–0.5), leading to an increased triple-phase boundary (TPB) density. As a result, SBSCF 1.9–0.3 exhibited relatively higher ORR activity and an ASR value of 0.21 Ω cm<sup>2</sup> at 700 °C. In contrast, SBSCF 2.05–0.5 showed a higher ASR value of 0.64 Ω cm<sup>2</sup> due to the presence of fewer exsolved Co particles. The metal Co exsolution observed in the oxidizing atmosphere in this study is thus demonstrated to be a critical factor in enhancing the electrochemical performance of solid oxide fuel cell (SOFC) cathodes.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"648 ","pages":"Article 237402"},"PeriodicalIF":8.1,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144105562","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

Synergistic effect of nitrogen-doped reduced graphene oxide on layered iron vanadate (FeV3O9.2.6H2O) for symmetry coin-cell supercapacitor application in aqueous electrolyte 氮掺杂还原氧化石墨烯对层状钒酸铁（FeV3O9.2.6H2O）的协同效应及其在对称硬币电池超级电容器中的应用

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-05-21 DOI: 10.1016/j.jpowsour.2025.237407

Mawuse Amedzo-Adore, Jeong In Han

引用次数: 0

Prussian blue analogue derived Al-doped CoN core-shell decorated by N-doped MXene quantum dots for solid-state asymmetrical supercapacitors 用掺n MXene量子点修饰的非对称固态超级电容器的普鲁士蓝模拟导出掺al CoN核壳

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-05-21 DOI: 10.1016/j.jpowsour.2025.237311

Emad S. Goda , Woongsik Jang , Byung Gi Kim , Dong Hwan Wang

{"title":"Prussian blue analogue derived Al-doped CoN core-shell decorated by N-doped MXene quantum dots for solid-state asymmetrical supercapacitors","authors":"Emad S. Goda , Woongsik Jang , Byung Gi Kim , Dong Hwan Wang","doi":"10.1016/j.jpowsour.2025.237311","DOIUrl":"10.1016/j.jpowsour.2025.237311","url":null,"abstract":"<div><div>Highly efficient electrode nanostructures are urgently needed for realizing ultrahigh energy density in portable and miniaturized electronics. Metal nitride–based electrodes hold promise for supercapacitor fabrication owing to their high electrical conductivity, redox activity, and mechanical strength, but have not been commercialized because of their low electrochemical stability. Herein, an ecofriendly and scalable “one-for-two” calcination strategy is used to convert carbon nitride sheets and an aluminum cobalt Prussian blue analog (AlCoPBA) into aluminum-doped cobalt nitride (AlCoN) nanocrystals encapsulated by (1) nitrogen-doped carbon decorated with MXene quantum dots (AlCoN@NC-MXQDs) and (2) nitrogen-doped carbon nanotubes (AlCoN@N-CNTs) with three-dimensional core–shell and hierarchical structures. These two composites have been evaluated as supercapacitor cathode materials. AlCoN@NC-MXQDs exhibited a specific capacity 2.4 times that of AlCoN@N-CNTs (314.4 mAh/g vs. 130.1 mAh/g, respectively) and an excellent cycle stability (95 % capacity retention after 10000 cycles). The solid-state asymmetric device obtained by pairing an AlCoN@NC-MXQD cathode with a nitrogen-doped graphene decorated with zinc-doped iron nitride (ZnFeN@NG) anode can deliver an ultrahigh energy density (96.5 Wh/kg), power density (507 W/kg), and cycling stability (capacity retention of 90 % after 10000 cycles), thus performing on par with previously reported asymmetric supercapacitors. Thus, our study paves the way for designing new core–shell structures to be exploited as electroactive materials in flexible electronics.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"648 ","pages":"Article 237311"},"PeriodicalIF":8.1,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144105565","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

Honeycomb carbon felt assisted by cobalt oxide boosting the electrochemical activity of TiO2+/Ti3+ redox couple in flow battery 氧化钴辅助蜂窝炭毡提高了液流电池中TiO2+/Ti3+氧化还原对的电化学活性

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-05-21 DOI: 10.1016/j.jpowsour.2025.237371

Zichao Zhao, Shumin Liu, Jiaying Yan, Min Wu, Lin Qiao, Mingjun Nan, Xiangkun Ma

{"title":"Honeycomb carbon felt assisted by cobalt oxide boosting the electrochemical activity of TiO2+/Ti3+ redox couple in flow battery","authors":"Zichao Zhao, Shumin Liu, Jiaying Yan, Min Wu, Lin Qiao, Mingjun Nan, Xiangkun Ma","doi":"10.1016/j.jpowsour.2025.237371","DOIUrl":"10.1016/j.jpowsour.2025.237371","url":null,"abstract":"<div><div>The new-generation iron-titanium flow battery (ITFB) has received widespread attention due to its low cost and excellent stability. However, the low electrochemical activity of the TiO<sup>2+</sup>/Ti<sup>3+</sup> redox couple limits further development, and there are few studies specifically for TiO<sup>2+</sup>/Ti<sup>3+</sup> redox couple. In this work, we design a honeycomb electrode for TiO<sup>2+</sup>/Ti<sup>3+</sup> couple by heat treatment with the assistance of cobalt oxide, benefiting from the converse between Co<sub>3</sub>O<sub>4</sub> and CoO. During the oxidation etching process and the uniform honeycomb pores on the carbon fibers are constructed successfully. The honeycomb carbon felt exhibits a large specific surface area, rich defects, and oxygen functional groups, providing plenty of active sites and facilitating the electron transfer between TiO<sup>2+</sup> and the electrode. Meanwhile, the honeycomb structure is profitable for the mass transfer of electrolytes within the electrodes, reducing the concentration polarization. As a result, the iron-titanium flow battery assembled with honeycomb carbon felt (CoTCF-450) achieves an energy efficiency of 88.7 % at 40 mA cm<sup>−2</sup> and shows no efficiency decay within 500 cycles at 120 mA cm<sup>−2</sup>, demonstrating outstanding battery performance. In addition, the effect of types of oxygen functional groups on the electrochemical activity of the TiO<sup>2+</sup>/Ti<sup>3+</sup> redox couple is discussed in detail in this work, guiding the subsequent research on TiO<sup>2+</sup>/Ti<sup>3+</sup> couple.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"648 ","pages":"Article 237371"},"PeriodicalIF":8.1,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144105639","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

Sensitivity of electrochemical impedance parameters for detecting changes in lithium-ion batteries due to acceleration shocks and local mechanical deformations 电化学阻抗参数检测锂离子电池因加速冲击和局部机械变形而变化的灵敏度

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-05-21 DOI: 10.1016/j.jpowsour.2025.237308

Christoph Drießen, Emanuele Michelini, Jörg Moser, Patrick Höschele

{"title":"Sensitivity of electrochemical impedance parameters for detecting changes in lithium-ion batteries due to acceleration shocks and local mechanical deformations","authors":"Christoph Drießen, Emanuele Michelini, Jörg Moser, Patrick Höschele","doi":"10.1016/j.jpowsour.2025.237308","DOIUrl":"10.1016/j.jpowsour.2025.237308","url":null,"abstract":"<div><div>Electrochemical Impedance Spectroscopy (EIS) offers valuable insights into cell characteristics and presents a promising tool for enhancing battery management systems (BMS) in electric vehicles (EVs). Its potential to detect safety-critical conditions, such as acceleration shocks and local mechanical deformations, along with its sensitivity to State of Charge (SOC), State of Health (SOH), and preload, remains underexplored. This study addresses this gap by performing EIS measurements on commercial lithium-ion pouch cells, assessing the impact of acceleration shocks and local mechanical deformations while considering its sensitivity to capacity levels, mechanical surface loads, and aging histories. A sensitivity analysis identifies the most responsive EIS parameters and frequencies for detecting cell changes induced by acceleration shocks and local mechanical deformations, independent of capacity levels, mechanical surface loads, and aging histories. Results show the real part of the impedance (Re) at 97.66 Hz and 976.56 Hz is highly sensitive to acceleration shocks. For local mechanical deformations, the magnitude of impedance |Z|, Re, and the minimum phase angle exhibited high sensitivities at frequencies between 1.09 Hz and 976.56 Hz. These findings highlight EIS's potential to detect safety-critical changes in lithium-ion batteries (LIBs), supporting their use in BMS for safety monitoring in commercial EV applications.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"648 ","pages":"Article 237308"},"PeriodicalIF":8.1,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144105640","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

Recent progress and perspectives on lithium and non-lithium rechargeable battery systems 锂和非锂可充电电池系统的最新进展与展望

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-05-21 DOI: 10.1016/j.jpowsour.2025.237362

Fawad Ahmad , Aroosa Arif , Muhammad Imran Khan , Saima Anjum , Abdallah Shanableh , Muhammad Babar Taj , Rafael Luque

{"title":"Recent progress and perspectives on lithium and non-lithium rechargeable battery systems","authors":"Fawad Ahmad , Aroosa Arif , Muhammad Imran Khan , Saima Anjum , Abdallah Shanableh , Muhammad Babar Taj , Rafael Luque","doi":"10.1016/j.jpowsour.2025.237362","DOIUrl":"10.1016/j.jpowsour.2025.237362","url":null,"abstract":"<div><div>High-performance lithium-ion and non-lithium-ion batteries are increasingly attracting interest as a result of recent developments in energy storage, a timely and hot topic discussed in this comprehensive contribution. Composite electrodes, polymeric binders, and layered cathode materials are examples of novel materials that have demonstrated significant potential in improving battery efficiency. Methods to stabilize lithium metal anodes and increasing battery life via solid electrolyte interphase, lithium salt concentration and optimum additives are herein discussed. Additionally, advances in lithium-sulfur batteries are emphasized including the design of bimetallic MOF separators and unified pore microstructures. Comparisons of aqueous and non-aqueous systems in metal-air batteries are also included, along with most recent developments in lithium-air battery technology. Important elements that influence battery performance are recognized including separators, electrolytes, and porous air cathodes. This contribution offers important insights into the present issues and future prospects in the topic of power sources.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"648 ","pages":"Article 237362"},"PeriodicalIF":8.1,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144105641","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

Multi-scale modeling and performance study of carbon fiber heterogeneous electrode batteries based on electrochemical-mechanical coupling 基于电化学-力学耦合的碳纤维非均质电极电池多尺度建模与性能研究

IF 8.1 2区工程技术

Journal of Power Sources Pub Date : 2025-05-21 DOI: 10.1016/j.jpowsour.2025.237404

Chunzhi Du , Xingjie Zhang , Rui Zhou , Zhiwei Sang , Yunteng Jiang

{"title":"Multi-scale modeling and performance study of carbon fiber heterogeneous electrode batteries based on electrochemical-mechanical coupling","authors":"Chunzhi Du , Xingjie Zhang , Rui Zhou , Zhiwei Sang , Yunteng Jiang","doi":"10.1016/j.jpowsour.2025.237404","DOIUrl":"10.1016/j.jpowsour.2025.237404","url":null,"abstract":"<div><div>Structural batteries with carbon fiber electrodes are designed to simultaneously withstand mechanical loads and store electrical energy. Conventional carbon fiber electrode battery models have adopted the P2D Newman model, which underestimates the impact of microscopic electrode structures on the electrochemical and mechanical behavior of the battery. This study proposes a multiscale electrochemical-mechanical coupled battery model based on the heterogeneous electrode geometry. This model better captures the microscopic structural details of the carbon fiber electrode. Based on this heterogeneous electrode model, the electrochemical performance of the structural battery can be visualized at the macroscale. At the microscale, the impact of diffusion-induced stresses resulting from electrochemical reactions on the microscopic electrode and battery porosity is investigated. The results show that the carbon fiber crenulations are more prone to high current density and high strain values compared to the carbon fibers themselves. Due to differences in diffusion and anisotropy, the axially stacked carbon fibers exhibit higher lithium concentration and induced stresses than the radially stacked ones. This multiscale coupled model can more comprehensively describe the complex electrochemical and mechanical behavior of carbon fiber batteries, providing a theoretical basis for optimizing the design of carbon fiber batteries.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"648 ","pages":"Article 237404"},"PeriodicalIF":8.1,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144105643","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