IF 2.6 4区化学

Ionics Pub Date : 2025-07-12 DOI: 10.1007/s11581-025-06519-3

Yi Li, Yuqian Fan, Yaqi Liang, Xiaoying Wu, Shengya He

{"title":"Pressure-augmented physics-informed dynamic graph neural network and dual Kalman filter framework for robust battery state-of-charge estimation","authors":"Yi Li, Yuqian Fan, Yaqi Liang, Xiaoying Wu, Shengya He","doi":"10.1007/s11581-025-06519-3","DOIUrl":"10.1007/s11581-025-06519-3","url":null,"abstract":"<div><p>State-of-charge (SOC) estimation is a core function of battery management systems that directly impacts system safety and energy management efficiency. Under complex conditions involving multisource disturbances, parameter drift, and cross-regime operation, traditional models often fail to adapt because of simplified physical assumptions or rigid structural formulations. To address these challenges, this paper proposes an SOC estimation framework that integrates a physics-informed graph structure with a dual Kalman filtering mechanism. The framework constructs a structured graph that encodes electro–thermal–mechanical coupling relationships, explicitly modeling the physical dependencies among current, voltage, temperature, and internal pressure. A dynamic graph neural network is employed to extract spatiotemporal prior features from multisource signals. Furthermore, a decoupled dual-filter mechanism—comprising a cubature Kalman filter (CKF) for dynamic state estimation and an extended Kalman filter (EKF) for online circuit parameter adaptation—is introduced to increase model flexibility and accuracy. A pressure–temperature coupling compensation unit is additionally designed to improve robustness under extreme environmental perturbations. Extensive experiments conducted on real-world datasets across various operating conditions, temperatures, and battery chemistries demonstrate that the proposed method significantly outperforms conventional filtering algorithms and typical data-driven models in terms of estimation accuracy, stability, and generalizability. The results confirm the framework’s strong physical consistency and practical applicability, offering a novel and interpretable solution pathway for high-reliability SOC estimation under complex operating scenarios.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 9","pages":"9273 - 9290"},"PeriodicalIF":2.6,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MoP/g-C3N4 QDs/TiO2 Nanotubes electrode for enhanced photoelectrochemical water oxidation MoP/g-C3N4 QDs/TiO2纳米管电极用于增强光电化学水氧化

IF 2.6 4区化学

Ionics Pub Date : 2025-07-11 DOI: 10.1007/s11581-025-06537-1

Shujun Yu, Dongmei Yang, Haoran Wang, Guoshun Gao, Hongfeng Gao, Zhengyang Ren, Pengcheng Wu, Keliang Wu

{"title":"MoP/g-C3N4 QDs/TiO2 Nanotubes electrode for enhanced photoelectrochemical water oxidation","authors":"Shujun Yu, Dongmei Yang, Haoran Wang, Guoshun Gao, Hongfeng Gao, Zhengyang Ren, Pengcheng Wu, Keliang Wu","doi":"10.1007/s11581-025-06537-1","DOIUrl":"10.1007/s11581-025-06537-1","url":null,"abstract":"<div><p>Developing efficient and stable photoelectrocatalysts for water oxidation is critical for sustainable energy conversion. In this work, a ternary heterostructure composed of TiO₂ nanotubes (TNTs), graphitic carbon nitride quantum dots (g-C₃N₄ QDs), and molybdenum phosphide (MoP) was synthesized via electrochemical anodization and sequential loading strategies. The optimized TiO₂ nanotubes (3 h anodization) exhibited uniform morphology and enhanced crystallinity, serving as an ideal substrate for further modification. The introduction of g-C₃N₄ QDs extended the light absorption range to visible regions, while MoP acted as an effective co-catalyst to accelerate charge transfer and suppress electron–hole recombination. The synergistic effects among the three components significantly improved photoelectrochemical performance, achieving a photocurrent density of 1.18 μA/cm<sup>2</sup> at 1.23 V vs. RHE, which was 3.1 times higher than pristine TiO₂. This work provides a rational design strategy for high-performance photoelectrodes and advances their applications in solar-driven water splitting.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 9","pages":"9499 - 9508"},"PeriodicalIF":2.6,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimizing battery performance through thermal management in electric vehicles using heterogeneous ensemble learning: a study on energy efficiency and safety 基于异构集成学习的电动汽车热管理优化电池性能：能效和安全性研究

IF 2.6 4区化学

Ionics Pub Date : 2025-07-11 DOI: 10.1007/s11581-025-06522-8

Vankamamidi S. Naresh, Ayyappa D

{"title":"Optimizing battery performance through thermal management in electric vehicles using heterogeneous ensemble learning: a study on energy efficiency and safety","authors":"Vankamamidi S. Naresh, Ayyappa D","doi":"10.1007/s11581-025-06522-8","DOIUrl":"10.1007/s11581-025-06522-8","url":null,"abstract":"<div><p>This paper presents a novel heterogeneous ensemble learning (HEL) framework for optimizing battery thermal management in electric vehicles (EVs). The proposed approach integrates six machine learning models—linear regression, decision tree, random forest, neural network, XGBoost, and gradient boosting—to enhance temperature prediction accuracy and intelligent cooling decisions. Validated using real-world driving data from 72 trips of BMW i3 (60 Ah) across various environments, the HEL model achieved significant performance improvements, with the stacking ensemble reaching an <i>R</i><sup>2</sup> score of 0.9999 and an RMSE of 0.0111. The framework leverages weighted averaging and stacking techniques to capitalize on the strengths of individual models while minimizing their weaknesses. By continuously monitoring the battery parameters, vehicle dynamics, and environmental conditions, the system dynamically adjusts cooling strategies to ensure optimal thermal regulation, energy efficiency, and safety. The modular architecture supports deployment in both cloud-based and vehicle-embedded systems, enabling real-time decision-making and adaptability to diverse operational scenarios. This research advances the development of intelligent, responsive, and comprehensive battery thermal management systems, paving the way for safer, more efficient, and reliable electric vehicles in the future.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 9","pages":"9195 - 9212"},"PeriodicalIF":2.6,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hierarchical C/MnO2 spheres as anode materials for high-performance lithium-ion batteries 多层C/MnO2球作为高性能锂离子电池负极材料

IF 2.6 4区化学

Ionics Pub Date : 2025-07-11 DOI: 10.1007/s11581-025-06513-9

Juanjuan Wang, Jiangping Nan, Xin’e Yan, Zhanhao Zhang

引用次数: 0

Sensitivity analysis and optimisation of a vehicular PEMFC power system 车载PEMFC电源系统的灵敏度分析与优化

IF 2.6 4区化学

Ionics Pub Date : 2025-07-11 DOI: 10.1007/s11581-025-06521-9

Abdelhak ACHOURI, Hamid ABDI, Adallah BENAROUS, Omar Ketfi

{"title":"Sensitivity analysis and optimisation of a vehicular PEMFC power system","authors":"Abdelhak ACHOURI, Hamid ABDI, Adallah BENAROUS, Omar Ketfi","doi":"10.1007/s11581-025-06521-9","DOIUrl":"10.1007/s11581-025-06521-9","url":null,"abstract":"<div><p>Proton exchange membrane fuel cell (PEMFC) systems are emerging as a promising technological solution for automotive applications. The present work is devoted to performance’s analysis of a power generation system integrating a PEMFC and its auxiliaries designed for vehicle applications. A thermodynamic model for the system behaviour is discussed and validated. A focus was made on the change of operating temperature and pressure, while highlighting a trade-off between the provided net power the overall efficiency of the system. It is found that, operating the PEMFC under 1.2 atm pressure and a temperature of 368.15 K results in significant auxiliary power consumption, representing 20.6% of the PEMFC overall power. This accordingly yields to a decrease in the system’s overall net power and efficiency. It is also shown that increasing the operating pressure from 1.2 to 4 atm, keeping the temperature at 348.15 K results in a relative decrease of 16.09% in the system’s net power, inducing therefore a slight decay of 48.61–40.78% on the overall efficiency. The NSGA-II algorithm was used to generate the optimal Pareto front, including the trade-off target points. The optimal operating conditions for three optimal cases were selected by means of the TOPSIS method. The configuration favouring the system net power rather than its overall efficiency is believed to be the most appropriate, with a 9.05% improvement in comparison with a selected baseline case. However, the optimisation-based improvement induced a slight decrease of 2.48% on the system overall efficiency.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 9","pages":"9379 - 9393"},"PeriodicalIF":2.6,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Feasibility of NaMNbO4 and NaMSbO4 (M = Ni, Co, Mn, Fe) for their use as high voltage cathode materials in sodium ion battery—a DFT study NaMNbO4和NaMSbO4 （M = Ni, Co, Mn, Fe）作为钠离子电池高压正极材料的可行性研究

IF 2.6 4区化学

Ionics Pub Date : 2025-07-10 DOI: 10.1007/s11581-025-06510-y

Shamik Chakrabarti, A. K. Thakur

{"title":"Feasibility of NaMNbO4 and NaMSbO4 (M = Ni, Co, Mn, Fe) for their use as high voltage cathode materials in sodium ion battery—a DFT study","authors":"Shamik Chakrabarti, A. K. Thakur","doi":"10.1007/s11581-025-06510-y","DOIUrl":"10.1007/s11581-025-06510-y","url":null,"abstract":"<div><p>Density functional theory study of NaMNbO<sub>4</sub> and NaMSbO<sub>4</sub> (M = Ni/Co/Mn/Fe), for using them as cathode materials in sodium ion battery, was computed in this work. The study showed that while transition metal atoms M act as the redox center, Nb/Sb acts as a matrix and holds the structural integrity. The electrochemical voltages were found to have values 4.71 V, 4.12 V, 2.82 V, and 3.52 V for NaMSbO<sub>4</sub> while having values 4.34 V, 4.04 V, 2.96 V, and 3.50 V for NaMNbO<sub>4</sub>, respectively for M = Ni, Co, Fe, and Mn. The voltage trend is in the increasing order in accordance with Ni > Co > Mn > Fe. This trend can be explained by the Hund’s rule. The structural studies indicated that the volume strain during charging is < 5% for all the materials. The high redox potential with minimal volume strain of NaMNb/SbO<sub>4</sub> (with M = Ni/Co/Mn/Fe) presents them as excellent cathode material for Na ion battery applications. Simulation of the diffusion barrier (activation energy) and room temperature ionic conductivity indicates that a moderate diffusion barrier ~ 0.274–0.527 eV exists in these composites with average ionic conductivity ~ 10<sup>−6</sup> to 10<sup>−8</sup> S/cm.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 9","pages":"9041 - 9059"},"PeriodicalIF":2.6,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring a cost-effective alternative to noble metals for electrocatalytic oxidation and ethanol detection in alkaline media 探索在碱性介质中电催化氧化和乙醇检测中具有成本效益的贵金属替代品

IF 2.6 4区化学

Ionics Pub Date : 2025-07-10 DOI: 10.1007/s11581-025-06518-4

B. Reyoun Frances, B. G. Jeyaprakash

{"title":"Exploring a cost-effective alternative to noble metals for electrocatalytic oxidation and ethanol detection in alkaline media","authors":"B. Reyoun Frances, B. G. Jeyaprakash","doi":"10.1007/s11581-025-06518-4","DOIUrl":"10.1007/s11581-025-06518-4","url":null,"abstract":"<div><p>The electrocatalytic oxidation of ethanol in an alkaline medium was systematically investigated using both commercial electrodes (GCE, ITO, Pt, Gr, and SPE) and CuO based modified electrodes (CuO/ITO, Ag/CuO/ITO, and rGO/CuO/ITO). The CuO films were deposited onto ITO substrates via spray pyrolysis, while Ag and rGO were introduced through thermal evaporation and the doctor blade method, respectively. Structural characterization confirmed the polycrystalline nature and high elemental purity of the synthesized CuO based materials. Electrochemical studies were conducted in 0.5 M NaOH with varying ethanol concentrations, using cyclic voltammetry (CV) to evaluate catalytic behavior with a potential window of -0.1 to 0.2 V. The CuO based electrodes, especially those functionalized with Ag and rGO, demonstrated significantly enhanced electrocatalytic activity compared to their commercial electrodes. These modified electrodes exhibited lower oxidation potentials, improved sensitivity, and reduced saturation effects at higher ethanol concentrations (oxidation peak at -0.2 – 2.0 V). The enhancements are attributed to increased active sites and the synergistic interaction between CuO and the functional materials. Among the tested electrodes, Ag/CuO and rGO/CuO showed the most promising performance, offering stable, sensitive, and cost-effective alternatives to traditional Pt-based catalysts for ethanol sensing applications.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 9","pages":"9525 - 9539"},"PeriodicalIF":2.6,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of vanadium flow battery electrolytes: in-depth analysis and prospects of multifaceted approaches 钒液流电池电解液的制备：多方面方法的深入分析与展望

IF 2.6 4区化学

Ionics Pub Date : 2025-07-10 DOI: 10.1007/s11581-025-06498-5

Linsen Wei, Haijun Hou, Jin Wang, Yanxiao Chen, Yuanyuan Chen, Rui Chen, Rong Li

{"title":"Preparation of vanadium flow battery electrolytes: in-depth analysis and prospects of multifaceted approaches","authors":"Linsen Wei, Haijun Hou, Jin Wang, Yanxiao Chen, Yuanyuan Chen, Rui Chen, Rong Li","doi":"10.1007/s11581-025-06498-5","DOIUrl":"10.1007/s11581-025-06498-5","url":null,"abstract":"<div><p>The preparation technology for vanadium flow battery (VRFB) electrolytes directly impacts their energy storage performance and economic viability. This review analyzes mainstream methods: The direct dissolution method offers a simple process but suffers from low dissolution rates, precipitation tendencies, and requires optimization of reductants and enhancement techniques. The electrolytic reduction method enables precise control over vanadium ion valence states but faces challenges such as high energy consumption and complex equipment. The solvent extraction method efficiently separates vanadium from impurities but involves lengthy procedures and emulsification risks. The ion exchange method is suitable for low-concentration purification but is constrained by limited resin capacity and wastewater treatment difficulties. Future efforts should focus on developing short-process technologies based on vanadium leaching solutions, overcoming bottlenecks in impurity separation and concentration enhancement, and advancing large-scale production of low-cost, high-stability electrolytes to accelerate VRFB applications in energy storage systems.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 9","pages":"8779 - 8788"},"PeriodicalIF":2.6,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","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 surface modification of spinel LiMn2O4 cathode materials for lithium-ion batteries 锂离子电池用尖晶石LiMn2O4正极材料表面改性研究进展

IF 2.6 4区化学

Ionics Pub Date : 2025-07-10 DOI: 10.1007/s11581-025-06494-9

Jie Li, Bao Zhang, Shouyi Yuan, Jiyue Hou, Hao Wu, Yixue Huang, Wenchang Han, Ziliang Feng, Yongkang Liu, Peng Dong, Yingjie Zhang, Yannan Zhang

{"title":"Research progress on surface modification of spinel LiMn2O4 cathode materials for lithium-ion batteries","authors":"Jie Li, Bao Zhang, Shouyi Yuan, Jiyue Hou, Hao Wu, Yixue Huang, Wenchang Han, Ziliang Feng, Yongkang Liu, Peng Dong, Yingjie Zhang, Yannan Zhang","doi":"10.1007/s11581-025-06494-9","DOIUrl":"10.1007/s11581-025-06494-9","url":null,"abstract":"<div><p>Lithium-ion batteries have become increasingly prevalent in modern society due to the rapid development of electronic devices and renewable energy technologies. Spinel LiMn<sub>2</sub>O<sub>4</sub> (lithium manganese oxide) cathodes are considered among the most promising materials for lithium-ion batteries due to their low cost, environmental sustainability, and abundant availability. However, structural collapse and manganese dissolution lead to rapid deterioration of its electrochemical performance, limiting further application of spinel LiMn<sub>2</sub>O<sub>4</sub>. Nonetheless, surface coating modification can enhance the electrochemical performance of LiMn<sub>2</sub>O<sub>4</sub>. In this paper, we briefly discuss the structural characteristics and the capacity decay mechanisms of LiMn<sub>2</sub>O<sub>4</sub> cathode materials. Furthermore, the applications and research progress of various surface coating materials, including oxides, phosphates, fluorides, carbon-based materials, and other coating materials (lithium-containing composite oxides, conductive polymers, and multifunctional materials), have been reviewed. The related mechanisms in improving cycling stability, suppressing manganese dissolution, and enhancing material conductivity were also analyzed. Importantly, the current challenges related to surface coating technologies and future research trends have been discussed. Therefore, this paper provides a theoretical foundation and practical reference for the development of high-performance lithium-ion batteries.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 9","pages":"8763 - 8778"},"PeriodicalIF":2.6,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MoS₂/NiS heterostructure nanosheets as bifunctional electrocatalysts for efficient water splitting MoS 2 /NiS异质结构纳米片作为高效水分解双功能电催化剂

IF 2.6 4区化学

Ionics Pub Date : 2025-07-08 DOI: 10.1007/s11581-025-06525-5

Congli Qin, Yanhong Lu, Lei Wei, Haoran Xue, Yanan Dang, Aixin Fan

{"title":"MoS₂/NiS heterostructure nanosheets as bifunctional electrocatalysts for efficient water splitting","authors":"Congli Qin, Yanhong Lu, Lei Wei, Haoran Xue, Yanan Dang, Aixin Fan","doi":"10.1007/s11581-025-06525-5","DOIUrl":"10.1007/s11581-025-06525-5","url":null,"abstract":"<div><p>The design and fabrication of cost-effective and efficient bifunctional water splitting electrocatalysts is of great significance to the development of clean energy. Herein, we successfully synthesized free-standing MoS₂/NiS heterostructure nanosheet electrocatalyst via templating strategy. Benefiting from the two-dimensional (2D) architecture of MoS<sub>2</sub>/NiS heterostructure, the few-layer structural features of MoS<sub>2</sub>, and synergistic effects between heterogeneous components, the catalyst demonstrated enhanced electrochemical performance for water splitting. The as-obtained MoS<sub>2</sub>/NiS heterostructured catalyst exhibited overpotentials of 206 mV at 10 mA cm<sup>−2</sup> and 400 mV at 100 mA cm<sup>−2</sup> for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), respectively. Notably, when configured as a dual-electrode electrolyzer cell, the MoS<sub>2</sub>/NiS operates a working voltage of 1.59 V to achieve a current density of 10 mA cm<sup>−2</sup>. This work presents a viable approach for designing high-efficiency bifunctional electrocatalysts.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 9","pages":"9371 - 9378"},"PeriodicalIF":2.6,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145236758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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