Journal of Power Sources最新文献_第2页

Mechanistic comparison of lithiation–delithiation in indium versus tin foil anodes for all-solid-state batteries 全固态电池用铟与锡箔阳极锂离子衰减机理比较

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2026-05-15 Epub Date: 2026-03-06 DOI: 10.1016/j.jpowsour.2026.239814

Yusuke Morino, Daisuke Ito

{"title":"Mechanistic comparison of lithiation–delithiation in indium versus tin foil anodes for all-solid-state batteries","authors":"Yusuke Morino, Daisuke Ito","doi":"10.1016/j.jpowsour.2026.239814","DOIUrl":"10.1016/j.jpowsour.2026.239814","url":null,"abstract":"<div><div>All-solid-state batteries employing inorganic solid electrolytes are expected to enable higher-rate operation, longer lifetime, and a wider operating-temperature window than conventional liquid-electrolyte lithium-ion batteries. To realize these advantages, high-capacity alloy anodes are attractive alternatives to graphite; however, the lithiation/delithiation mechanisms and their compatibility with inorganic solid electrolytes remain insufficiently understood. Here, we investigate mechanically compliant metallic alloy foil anodes of indium and tin, two adjacent elements in the periodic table (theoretical volumetric capacities >2000 mAh cm<sup>−3</sup>) paired with an argyrodite-type Li<sub>6</sub>PS<sub>5</sub>Cl solid electrolyte in half cells. Indium exhibits a coulombic efficiency of ∼99%, whereas tin exhibits a much lower coulombic efficiency. Electrochemical measurements combined with X-ray diffraction indicate that indium undergoes reversible crystalline phase transitions over a wide state-of-charge range, yielding distinct potential plateaus. In contrast, tin shows plateau behavior associated with crystalline phase transitions at early lithiation, followed by a gradual potential decrease accompanied by amorphization at higher lithiation levels. These findings clarify distinct reaction pathways of mechanically compliant alloy anodes in all-solid-state batteries, reveal a crystallographic origin of the markedly different reversibility between In and Sn, and provide guidance for selecting alloy/solid-electrolyte pairings toward high-rate and durable cells.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"674 ","pages":"Article 239814"},"PeriodicalIF":7.9,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147387643","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

Covalency-driven reduction of electrostatic barriers via high-electronegativity Sb/Bi in Li3MI6: First-principles prediction of iodide electrolytes 利用高电负性Sb/Bi在Li3MI6中共价驱动的静电屏障还原：碘化物电解质的第一性原理预测

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2026-05-15 Epub Date: 2026-03-06 DOI: 10.1016/j.jpowsour.2026.239805

Han Bao , Guofeng Xu , Junmin Ke , Zulfiqar Ali , Jianghao Zhao , Changwen Wang , Furong Liu

{"title":"Covalency-driven reduction of electrostatic barriers via high-electronegativity Sb/Bi in Li3MI6: First-principles prediction of iodide electrolytes","authors":"Han Bao , Guofeng Xu , Junmin Ke , Zulfiqar Ali , Jianghao Zhao , Changwen Wang , Furong Liu","doi":"10.1016/j.jpowsour.2026.239805","DOIUrl":"10.1016/j.jpowsour.2026.239805","url":null,"abstract":"<div><div>All-solid-state lithium-ion batteries (ASSLIBs) have emerged as a transformative energy storage technology, offering unparalleled advantages in safety, energy density, and cycle life compared to conventional liquid electrolyte-based systems. Ionic conductivity in halide solid electrolytes is traditionally tuned by manipulating ionic radii, often overlooking electronic effects. Here, we reveal a covalency-driven mechanism that lowers electrostatic barriers. Using first-principles calculations on Li<sub>3</sub>SbI<sub>6</sub> and Li<sub>3</sub>BiI<sub>6</sub>, we demonstrate that high-electronegativity cations (Sb/Bi) induce strong covalent character in the framework. This covalency effectively screens the electrostatic attraction between the anion framework and Li<sup>+</sup>, thereby reducing the migration barrier for lithium ions and significantly enhancing ionic conductivity. Crucially, by comparing Li<sub>3</sub>BiI<sub>6</sub> with the isostructural Li<sub>3</sub>LaI<sub>6</sub>, we successfully decoupled electronic effects from steric hindrance, confirming covalency as the decisive factor for superionic conduction. To substantiate these theoretical predictions, we synthesized the Li<sub>3</sub>BiI<sub>6</sub> electrolyte, which exhibited a remarkable room-temperature conductivity of 13.74 mS cm<sup>−1</sup>. This work establishes bond covalency as a critical descriptor for rational electrolyte design, shifting the focus from structural sizing to electronic modulation.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"674 ","pages":"Article 239805"},"PeriodicalIF":7.9,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147387658","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

Rational process design of cost-benefit prelithiation additive Li5FeO4 enables high-performance lithium-ion batteries 合理设计成本-效益预锂化添加剂Li5FeO4工艺，实现高性能锂离子电池

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2026-05-15 Epub Date: 2026-03-06 DOI: 10.1016/j.jpowsour.2026.239774

Weiwei Wang , Xueying Jia , Yuhao Zhang , Bing Qin , Ying Wang , Chenyu Yang , Qinghua Liu

{"title":"Rational process design of cost-benefit prelithiation additive Li5FeO4 enables high-performance lithium-ion batteries","authors":"Weiwei Wang , Xueying Jia , Yuhao Zhang , Bing Qin , Ying Wang , Chenyu Yang , Qinghua Liu","doi":"10.1016/j.jpowsour.2026.239774","DOIUrl":"10.1016/j.jpowsour.2026.239774","url":null,"abstract":"<div><div>Li<sub>5</sub>FeO<sub>4</sub> (LFO), an ideal cathode prelithiation additive for lithium-ion batteries, has attracted significant interest because of its extremely high capacity, suitable voltage window, and environmental friendliness. However, the solid-phase synthesis process of LFO is not clear and suffers from the exorbitant cost of Li<sub>2</sub>O, making finding an alternative lithium source for improving cost-effectiveness in industrial production crucial. In this study, LFO materials were synthesized via a solid-phase sintering method involving two types of lithium sources. Utilizing <em>in-situ</em> X-ray diffraction and X-ray absorption fine structure spectroscopy, the evolution mechanism of solid-phase synthesis was elucidated. In particular, a low-temperature plateau was determined for the synthesis process employing LiOH as the lithium source. Compared with Li<sub>2</sub>O-derived O-LFO, the as-obtained prelithiation additive H-LFO achieved an ∼69.7% cost reduction with satisfactory initial charge capacity, energy density and cycling stability in industrial-scale applications. This work provides a practical solution for promoting prelithiation technology and reducing the preparation cost of prelithiation additives.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"674 ","pages":"Article 239774"},"PeriodicalIF":7.9,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147387756","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 on energy saving of electric vehicle motor parameters adaptive control based on artificial intelligence noise detection algorithm in high-frequency spectrum 基于高频频谱人工智能噪声检测算法的电动汽车电机参数自适应节能控制研究

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2026-05-15 Epub Date: 2026-03-06 DOI: 10.1016/j.jpowsour.2026.239727

Chang-Hung Hsu

{"title":"Research on energy saving of electric vehicle motor parameters adaptive control based on artificial intelligence noise detection algorithm in high-frequency spectrum","authors":"Chang-Hung Hsu","doi":"10.1016/j.jpowsour.2026.239727","DOIUrl":"10.1016/j.jpowsour.2026.239727","url":null,"abstract":"<div><div>This study proposes a multi-objective control approach using the LSTM (Long Short-Term Memory) method to measure and analyze motor noise in complex multi-frequency domains. The integrated energy function and the limiting energy output function are composited with fuzzy logic + FOPID (Fractional-Order Proportional-Integral-Derivative) controller for energy saving and drive control of the motor. Experiments are conducted with a motor operating noise, including normal and abnormal noise frequencies between 40 Hz and 6 kHz. Abnormal noise and signals are extracted using LSTM and RNN (Recurrent Neural Network). A Butterworth bandpass filter (BBF) is used to reduce noise and separate components of specific expected and excitation frequencies. It shows main contribution to the suppression of motor current oscillations and electromagnetic noise and vibration. The LSTM + BBF model integrated with energy function is used to composite a Fuzzy controller and adjustable parameter FOPID controller. The experiment used a 600-Ω load condition to verify the integrity of the inferential control architecture for nonlinear motor operation systems. Finally, this research is developed that a controller and LSTM + BBF noise spectrum measurement system is adaptable to various motor types and loadings. After comparing the performance of a traditional PID controller and a fuzzy + FOPID controller using the LSTM algorithm, the overall energy consumption of the motor with power meter is validated to reduce energy at least 17%.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"674 ","pages":"Article 239727"},"PeriodicalIF":7.9,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147388088","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

Sustainable flexible self-powered energy source for wearable electronics: Integrated performance-enhanced triboelectric nanogenerator-supercapacitor based on single biomass carbon 可穿戴电子产品的可持续柔性自供电能源：基于单一生物质碳的集成性能增强摩擦电纳米发电机-超级电容器

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2026-05-15 Epub Date: 2026-03-06 DOI: 10.1016/j.jpowsour.2026.239782

Guanjun Zhu , Shengkui Yuan , Honglai Yan , Hongliang Du , Fang Ren , Penggang Ren , Yong Jiao , Qinghua Sun

{"title":"Sustainable flexible self-powered energy source for wearable electronics: Integrated performance-enhanced triboelectric nanogenerator-supercapacitor based on single biomass carbon","authors":"Guanjun Zhu , Shengkui Yuan , Honglai Yan , Hongliang Du , Fang Ren , Penggang Ren , Yong Jiao , Qinghua Sun","doi":"10.1016/j.jpowsour.2026.239782","DOIUrl":"10.1016/j.jpowsour.2026.239782","url":null,"abstract":"<div><div>Flexible self-powered energy module with “energy harvesting-storage-supply” function integrated by triboelectric nanogenerator (TENG) and flexible solid-state supercapacitor (FSSC) is considered a highly promising approach for powering wearable electronics. However, their effective integration into a high-performance, reliable, and wearable module remains challenging, often constrained by the complexity of coordinating disparate materials and fabrication processes for each unit. Herein, a “multiple-benefits-in-one” strategy is proposed, which involves utilizing a single biomass carbon material (puffed rice-derived activated carbon, PRAC) as universal functional material for TENG and FSSC. This innovative approach achieves performance enhancement for both units while reducing system complexity and cost, enabling efficient system integration. The unique porous structure of PRAC endows FSSC constructed by patterned electrodes with high area capacitance, excellent cycle reliability and stable capacitance retention unaffected by bending states. The PRAC-doped TENG achieves efficient energy harvesting and conversion due to optimized charge storage capacity. An all-in-one wearable device consisting of TENG, FSSC and LEDs is constructed to simultaneously generate and store power as well as to realize self-driven lighting, demonstrating great convenience and practicability for application in integrated electronics. This work provides innovative material strategies and feasible integration technology pathways for developing high-performance, low-cost, environmentally friendly flexible self-powered systems.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"674 ","pages":"Article 239782"},"PeriodicalIF":7.9,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147388120","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 study of a commercially available anode-supported 2R-Cell™ SOFC via synchrotron radiation XAFS and electrochemical characterization 通过同步辐射XAFS和电化学表征对市售阳极支持的2R-Cell™SOFC进行了研究

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2026-05-15 Epub Date: 2026-03-04 DOI: 10.1016/j.jpowsour.2026.239755

Gabriel A. Cabrera-Pasca , Beethoven Narváez-Romo , Erick L. Ribeiro , Latif U. Khan , Matheus B.C. de Souza , Pedro H. Britto-Costa , Raphaël Ihringer , Santiago J.A. Figueroa , Tiago M.T. Martins , Zahid U. Khan , Izabel F. Machado , Julio R. Meneghini , Nigel P. Brandon , Thiago Lopes

{"title":"A study of a commercially available anode-supported 2R-Cell™ SOFC via synchrotron radiation XAFS and electrochemical characterization","authors":"Gabriel A. Cabrera-Pasca , Beethoven Narváez-Romo , Erick L. Ribeiro , Latif U. Khan , Matheus B.C. de Souza , Pedro H. Britto-Costa , Raphaël Ihringer , Santiago J.A. Figueroa , Tiago M.T. Martins , Zahid U. Khan , Izabel F. Machado , Julio R. Meneghini , Nigel P. Brandon , Thiago Lopes","doi":"10.1016/j.jpowsour.2026.239755","DOIUrl":"10.1016/j.jpowsour.2026.239755","url":null,"abstract":"<div><div>Solid oxide fuel cells (SOFCs) represent a promising pathway toward efficient and low-emission energy conversion technologies. This study investigates the integrated electrochemical and synchrotron-based characterization of a commercially manufactured anode-supported SOFC evaluated at laboratory (button-cell) scale (2R-Cell™), developed by Fiaxell SOFC Technologies. Microstructural analysis was conducted using scanning electron microscopy (SEM) combined with energy-dispersive X-ray spectroscopy (EDS). This assessment enabled direct observation of the engineered anode composed of Ni–8YSZ microspheres forming low-tortuosity channels, as well as a dense 8YSZ electrolyte stabilized by a GDC buffer layer. Synchrotron-based X-ray fluorescence (XRF) mapping confirmed the preservation of multilayer chemical integrity after operation under reducing conditions. X-ray absorption spectroscopy (XAS), including XANES and EXAFS, was employed at the Ni, Zr, Fe, and Sr K-edges to monitor redox behavior and structural evolution. The Ni spectra revealed partial and spatially heterogeneous reductions NiO to Ni<sup>0</sup> at 800 °C, while the Zr and Fe spectra showed negligible changes, indicating stability of the electrolyte and cathode. Electrochemical impedance spectroscopy (EIS) under H<sub>2</sub>/N<sub>2</sub> operation further validated the low polarization resistance and robust performance of the cell architecture. These results demonstrate the electrochemical resilience and microstructural integrity of the 2R-Cell™, highlighting its suitability for advanced hydrogen-fueled SOFC applications.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"674 ","pages":"Article 239755"},"PeriodicalIF":7.9,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147388132","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

Dynamic heterojunctions enabled by liquid metal for high-performance silicon anodes 液态金属实现高性能硅阳极的动态异质结

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2026-05-15 Epub Date: 2026-03-04 DOI: 10.1016/j.jpowsour.2026.239799

Qingqing Liu , Yufeng Lin , Xiao Wei , Zimo Song , Changhaoyue Xu , Yanxi Wan , Wenlong Cai , Feng Chen

{"title":"Dynamic heterojunctions enabled by liquid metal for high-performance silicon anodes","authors":"Qingqing Liu , Yufeng Lin , Xiao Wei , Zimo Song , Changhaoyue Xu , Yanxi Wan , Wenlong Cai , Feng Chen","doi":"10.1016/j.jpowsour.2026.239799","DOIUrl":"10.1016/j.jpowsour.2026.239799","url":null,"abstract":"<div><div>The exertion of the full capacity of non-conducting silicon anodes inevitably leads to severe volume expansion, which critically limits their practical viability. In our work, a simple liquid metal (LM) coating strategy is introduced to engineer dynamic heterojunction interfaces on Si/C particle surfaces. Leveraging the reversible solid–liquid phase dynamic transition behavior of LM during (de)lithiation, the interface provides solid-phase mechanical buffering during lithiation and liquid-phase flowability upon delithiation, effectively repairing the structural voids and maintaining interfacial continuity under large volume fluctuations. Theoretical calculations reveal that the strong Li–Ga interaction and superior Ga conductivity contribute to improved electronic and ionic kinetics at the interface. As a result, the LM–Si/C anode exhibits a previously unreported cyclic capacity recovery behavior, attributed to phase-induced interfacial remodeling. The electrode delivers a high capacity of 680 mAh g<sup>−1</sup> at 2 A g<sup>−1</sup>, excellent cyclability (500 cycles with 61% retention), and a substantial reduction in electrode thickness expansion from 64.1% to 18.5%. Full-cell tests confirm the practicality of this design. This work establishes a mechanistically guided, phase-adaptive interfacial strategy for advancing silicon-based lithium-ion batteries.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"674 ","pages":"Article 239799"},"PeriodicalIF":7.9,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147387640","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

Copper regulated facet dependent surface behavior promoting single crystal growth of sodium layered cathodes 铜调节面依赖的表面行为促进钠层阴极的单晶生长

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2026-05-15 Epub Date: 2026-03-05 DOI: 10.1016/j.jpowsour.2026.239795

Aoci Yang , Meng Li , Yang Gu , Zongyu Guan , Mingxiang Deng , Siteng Zhou , Kuan Wang , Litao Yan , Jiangtao Hu , Biwei Xiao

{"title":"Copper regulated facet dependent surface behavior promoting single crystal growth of sodium layered cathodes","authors":"Aoci Yang , Meng Li , Yang Gu , Zongyu Guan , Mingxiang Deng , Siteng Zhou , Kuan Wang , Litao Yan , Jiangtao Hu , Biwei Xiao","doi":"10.1016/j.jpowsour.2026.239795","DOIUrl":"10.1016/j.jpowsour.2026.239795","url":null,"abstract":"<div><div>Layered oxide cathodes for sodium-ion batteries are susceptible to structural degradation during cycling, which severely limits their long-term stability. Although single-crystal engineering has been demonstrated to significantly improve structural stability, the underlying growth mechanism remains unclear. In this work, NaNi<sub>0.4</sub>Fe<sub>0.2</sub>Mn<sub>0.4</sub>O<sub>2</sub> was selected as a model system to systematically investigate the role of Cu doping during the growth process. In-situ high-temperature XRD and SEM analyses demonstrate that Cu doping influences crystal-growth kinetics and facet-dependent growth modes, thereby promoting a morphological transition from polycrystalline aggregates to single-crystal-like particle structures. Electrochemical and thermal analyses under Na-deficient conditions demonstrated that the Cu-Ni solid solution formed during sintering, together with the relatively strong Cu-O bonds, serves as structural pinning centers during cycling, mitigating interlayer slab gliding and irreversible structural changes, thereby enhancing both cycling stability and thermal stability. From the perspectives of facet evolution and local structural stabilization, this work provides mechanistic insight into how Cu doping regulates single-crystal-like growth and enhances structural stability, offering new strategies for facet engineering and the rational design of sodium-ion battery cathodes.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"674 ","pages":"Article 239795"},"PeriodicalIF":7.9,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147387641","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

Enhancing lithium-ion battery analysis: A machine learning approach to investigate innovative silicon thin film anode parameters and discharge capacity 增强锂离子电池分析：研究创新硅薄膜阳极参数和放电容量的机器学习方法

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2026-05-15 Epub Date: 2026-03-07 DOI: 10.1016/j.jpowsour.2026.239808

Elif Muslu Yilmaz , Aysegul Uygun Oksuz , Satoshi Hamaguchi , Elif Ceren Gok Yildirim , Murat Onur Yildirim , Kazumasa Ikuse , Pierre Vinchon , Nicolas Mauchamp , Esin Eren

{"title":"Enhancing lithium-ion battery analysis: A machine learning approach to investigate innovative silicon thin film anode parameters and discharge capacity","authors":"Elif Muslu Yilmaz , Aysegul Uygun Oksuz , Satoshi Hamaguchi , Elif Ceren Gok Yildirim , Murat Onur Yildirim , Kazumasa Ikuse , Pierre Vinchon , Nicolas Mauchamp , Esin Eren","doi":"10.1016/j.jpowsour.2026.239808","DOIUrl":"10.1016/j.jpowsour.2026.239808","url":null,"abstract":"<div><div>Silicon (Si) thin film anodes offer very high theoretical capacity but also undergo severe volume expansion during lithiation, which causes fracture, loss of electrical contact, and rapid capacity fade in lithium-ion batteries. This study develops a machine learning (ML) framework that predicts discharge capacity and derives processing and operating guidelines for Si thin film anodes. A curated literature dataset with missing fabrication and cycling parameters is completed using ML-based imputation, for which Random Forest gives the highest accuracy. A Random Forest regressor then predicts discharge capacity with strong performance (validation R<sup>2</sup> = 0.86, mean absolute error = 174.1 mAh g<sup>−1</sup>). Feature importance analysis identifies working pressure, cycle number, and C-rate as the most influential variables. The trained model also extrapolates learned degradation trends to later cycle numbers, producing hypothetical capacity fade projections that qualitatively align with the reported behaviour of Si thin film anodes, rather than representing statistically validated long-term predictions. Finally, a model-agnostic Accumulated Local Effects analysis quantifies how fabrication parameters and operating conditions shape both absolute capacity and its fading. The results show that ML not only predicts performance reliably but also supports the rational design of next-generation Si thin film anodes.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"674 ","pages":"Article 239808"},"PeriodicalIF":7.9,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147387747","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 review of float charging in lithium-ion batteries: Degradation mechanisms, influencing factors, and optimization strategies 锂离子电池浮充研究进展：退化机理、影响因素及优化策略

IF 7.9 2区工程技术

Journal of Power Sources Pub Date : 2026-05-15 Epub Date: 2026-03-07 DOI: 10.1016/j.jpowsour.2026.239788

Mohammed Saquib Khan , Sahithi Maddipatla , Michael Pecht

引用次数: 0