Journal of The Electrochemical Society最新文献_第10页

State of Health Estimation of Lithium-Ion Battery for Electric Vehicle Based on VMD-DBO-SVR Model 基于 VMD-DBO-SVR 模型的电动汽车锂离子电池健康状况评估

IF 3.9 4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-08-06 DOI: 10.1149/1945-7111/ad6935

Liang Tong, Minghui Gong, Yong Chen, Rao Kuang, Yonghong Xu, Hongguang Zhang, Baoying Peng, Fubin Yang, Jian Zhang and Yiyang Li

{"title":"State of Health Estimation of Lithium-Ion Battery for Electric Vehicle Based on VMD-DBO-SVR Model","authors":"Liang Tong, Minghui Gong, Yong Chen, Rao Kuang, Yonghong Xu, Hongguang Zhang, Baoying Peng, Fubin Yang, Jian Zhang and Yiyang Li","doi":"10.1149/1945-7111/ad6935","DOIUrl":"https://doi.org/10.1149/1945-7111/ad6935","url":null,"abstract":"State-of-health (SOH) of lithium-ion batteries is an important indicator for measuring performance and remaining life. We propose an innovative prediction model that integrates variational mode decomposition (VMD), Dung Beetle optimizer (DBO), and support vector regression (SVR) algorithms. We extracted relevant features from the discharge characteristic curve and incremental capacity curve. We used Pearson and Spearman correlation coefficient methods for correlation analysis on the extracted health factors (HFs), selecting those that significantly impact SOH as input features. A DBO-SVR model was constructed to establish a nonlinear correlation between HFs and SOH, and the DBO algorithm was used to globally search and optimize the hyperparameters of the SVR model to improve its prediction accuracy. To reduce the impact of noise in battery signals on model performance, VMD technology was introduced to decompose battery signals into multiple intrinsic mode components, to extract useful features and remove noise to further improve prediction accuracy. The proposed method was validated using the NASA battery dataset and compared with other algorithm models. Results showed that the prediction model was significantly better than other models, with a maximum RMSE value of 0.84%, a maximum MAE value of 0.71%, and a stable prediction error value within 1%.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"10 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141942907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Silicon-Based Nanocomposite Anodes with Excellent Cycle Life for Lithium-Ion Batteries Achieved by the Synergistic Effect of Two Silicides 通过两种硅化物的协同效应实现具有出色循环寿命的硅基纳米复合材料锂离子电池阳极

IF 3.9 4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-08-06 DOI: 10.1149/1945-7111/ad69c6

Yasuhiro Domi, Hiroyuki Usui, Takumi Okasaka, Kei Nishikawa and Hiroki Sakaguchi

{"title":"Silicon-Based Nanocomposite Anodes with Excellent Cycle Life for Lithium-Ion Batteries Achieved by the Synergistic Effect of Two Silicides","authors":"Yasuhiro Domi, Hiroyuki Usui, Takumi Okasaka, Kei Nishikawa and Hiroki Sakaguchi","doi":"10.1149/1945-7111/ad69c6","DOIUrl":"https://doi.org/10.1149/1945-7111/ad69c6","url":null,"abstract":"Nanocomposite electrodes comprising LaSi2 and Si exhibit satisfactory charge–discharge cycling performances but their capacity is degraded after repeated cycles. A metallographic structure, in which the Si phase was finely dispersed in the LaSi2 matrix phase, was formed before cycling. The elastic LaSi2 relieved Si-generated stress and suppressed electrode disintegration. Contrarily, the LaSi2 phase in the metallographic structure was surrounded by the Si matrix phase after cycling. The positional relationship between the two phases was reversed, and LaSi2 could not relieve the stress. For a nanocomposite electrode containing CrSi2, which exhibits stiffness to withstand the Si-generated stress, the structural changes were suppressed after cycling, resulting in good cycling stability. Here, we considered that the addition of stiff silicides as a third phase to the LaSi2/Si composite could improve the cycle life. Thus, this study prepared nanocomposite electrodes containing elastic LaSi2, stiff MSi2 (where M = Cr, Mo, Nb, Ta, Ti, or W), and elemental Si and investigated their electrochemical performances. Reaction behaviors, such as the metallographic structure, electrode thickness, and phase transition, were also clarified. The LaSi2/NbSi2/Si electrode exhibited the best cycle life without changes in its metallographic structure owing to the synergistic effect of stiff and elastic silicides.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"41 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141942969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Communication—First-Principles Simulations of LiPF6 Decomposition in Ethylene Carbonate-Based Electrolytes 通信--碳酸乙烯酯基电解质中 LiPF6 分解的第一原理模拟

IF 3.9 4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-08-06 DOI: 10.1149/1945-7111/ad69ca

Jean-Luc Fattebert and Lorena Alzate-Vargas

引用次数: 0

Modeling Rate Dependent Volume Change in Porous Electrodes in Lithium-Ion Batteries 锂离子电池中多孔电极随速率变化的体积变化建模

IF 3.9 4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-07-31 DOI: 10.1149/1945-7111/ad6483

Taylor R. Garrick, Miguel A. Fernandez, Brian J. Koch, Erin Efimoff, Matthew Jones, Rafid Mollah, Hunter Teel, Xiaoniu Du, Sirivatch Shimpalee, Song-Yul Choe, Venkat R. Subramanian, Jason B. Siegel

{"title":"Modeling Rate Dependent Volume Change in Porous Electrodes in Lithium-Ion Batteries","authors":"Taylor R. Garrick, Miguel A. Fernandez, Brian J. Koch, Erin Efimoff, Matthew Jones, Rafid Mollah, Hunter Teel, Xiaoniu Du, Sirivatch Shimpalee, Song-Yul Choe, Venkat R. Subramanian, Jason B. Siegel","doi":"10.1149/1945-7111/ad6483","DOIUrl":"https://doi.org/10.1149/1945-7111/ad6483","url":null,"abstract":"Automotive manufacturers are working to improve individual cell, module, and overall pack design by increasing the performance, range, and durability, while reducing cost. One key piece to consider during the design process is the active material volume change, its linkage to the particle, electrode, and cell level volume changes, and the interplay with structural components in the rechargeable energy storage system. As the time from initial design to manufacture of electric vehicles decreases, design work needs to move to the virtual domain; therefore, a need for coupled electrochemical-mechanical models that take into account the active material volume change and the rate dependence of this volume change need to be considered. In this study, we illustrated the applicability of a coupled electrochemical-mechanical battery model considering multiple representative particles to capture experimentally measured rate dependent reversible volume change at the cell level through the use of an electrochemical-mechanical battery model that couples the particle, electrode, and cell level volume changes. By employing this coupled approach, the importance of considering multiple active material particle sizes representative of the distribution is demonstrated. The non-uniformity in utilization between two different size particles as well as the significant spatial non-uniformity in the radial direction of the larger particles is the primary driver of the rate dependent characteristics of the volume change at the electrode and cell level.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"292 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141868226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Electrochemical Kinetic Behaviors and Sensing Performance of Au@ZIF-8 and Ag@ZIF-8 Nanocomposites-Based Platforms Towards Ultrasensitive Detection of Chloramphenicol 基于 Au@ZIF-8 和 Ag@ZIF-8 纳米复合材料平台的电化学动力学行为和传感性能，实现对氯霉素的超灵敏检测

IF 3.9 4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-07-29 DOI: 10.1149/1945-7111/ad650b

Tuyet Nhung Pham, Van Manh Tien, Van Hoang Ong, Nhat Trang Nguyen Le, Thuy Nguyen Linh Ho, Hoang Doan Tan Le, Nguyen Quang Hoa, Hoang Vinh Tran, Dinh Ngo Xuan, Huy Tran Quang, Lam Dinh Vu, Anh-Tuan Le

{"title":"Electrochemical Kinetic Behaviors and Sensing Performance of Au@ZIF-8 and Ag@ZIF-8 Nanocomposites-Based Platforms Towards Ultrasensitive Detection of Chloramphenicol","authors":"Tuyet Nhung Pham, Van Manh Tien, Van Hoang Ong, Nhat Trang Nguyen Le, Thuy Nguyen Linh Ho, Hoang Doan Tan Le, Nguyen Quang Hoa, Hoang Vinh Tran, Dinh Ngo Xuan, Huy Tran Quang, Lam Dinh Vu, Anh-Tuan Le","doi":"10.1149/1945-7111/ad650b","DOIUrl":"https://doi.org/10.1149/1945-7111/ad650b","url":null,"abstract":"Silver (Ag) and gold (Au) nanoparticles (NPs) are incorporated into the zeolitic imidazolate framework-8 (ZIF-8) host matrix, which is successfully coated the screen-printed electrodes (SPEs) for the effective detection of chloramphenicol (CAP). The morphological and structural characteristics are examined using scanning electron microscope (SEM) and X-ray diffraction (XRD) analysis. Additionally, the electrochemical characteristics and sensing performance of CAP on the proposed electrodes are investigated in detail using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), chronoamperometry (CA), and differential pulse voltammetry (DPV) measurements, respectively. The results suggest the SPEs modified with Ag@ZIF-8 and Au@ZIF-8 exhibit impressive enhancements in sensitivity, linear concentration range, limits of detection (LODs), and repeatability. Under the optimum conditions, the proposed electrochemical sensors had a linear range of 0.25–50 <italic toggle=\"yes\">μ</italic>M for Ag@ZIF-8/SPE and 5–50 <italic toggle=\"yes\">μ</italic>M for Au@ZIF-8/SPE, corresponding to LODs of 0.16 and 0.404 <italic toggle=\"yes\">μ</italic>M, respectively. Notably, a series of kinetic parameters related to the redox reactions of both standard Fe(CN)<sub>6</sub>\u0000<sup>3−/4−</sup> probe and CAP molecules in phosphate-buffered saline (PBS) buffer are determined. Furthermore, valuable insights into the influence mechanism nature of Ag@ZIF-8 and Au@ZIF-8 nanocomposites on the electrochemical behaviors are proposed, demonstrating the great potential of the developed sensors for CAP detection.<inline-formula>\u0000<inline-graphic xlink:href=\"jesad650b-ga.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"25 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141868245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Electrochemical Preparation of Ti2CrV Alloy in CaCl2 Melt 在 CaCl2 熔体中电化学制备 Ti2CrV 合金

IF 3.9 4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-07-25 DOI: 10.1149/1945-7111/ad6482

Mohd. Sufiyan Khan, Anwesha Mukherjee, Pabitra Ghosh and Kumaresan R.

{"title":"Electrochemical Preparation of Ti2CrV Alloy in CaCl2 Melt","authors":"Mohd. Sufiyan Khan, Anwesha Mukherjee, Pabitra Ghosh and Kumaresan R.","doi":"10.1149/1945-7111/ad6482","DOIUrl":"https://doi.org/10.1149/1945-7111/ad6482","url":null,"abstract":"Ti2CrV alloy shows good hydrogen storage characteristics at room temperature and ambient pressure. The present study investigated the feasibility of direct electrochemical reduction of TiO2-Cr2O3-V3O5 to Ti2CrV in CaCl2 melt at 900 °C by the FFC Cambridge process. The electrolysis was conducted in a two-electrode assembly with the sintered mixed oxide cathode and HD graphite anode at a constant cell voltage of 3.1 V for different time intervals to elucidate the reduction mechanism of the metal oxide mixture. The obtained products were characterized by X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscopy techniques. Cyclic voltammetry studies using metallic cavity electrode containing mixed metal oxide powder were also carried out to determine the electrochemical reduction behavior in CaCl2 melt at 900 °C. It was observed that the presence of pre-formed Cr and V metal in the vicinity of titanium oxide helped in its faster reduction. The complete metallization of the sintered mixed oxide pellet occurred after 15 h of electrolysis. The electrochemical reduction mechanism was observed to proceed through various intermediates such as chromium-rich Cr-V, vanadium-rich V-Cr, CaTiO3, TiO, Ti6O, Ti-V, and C15-TiCr2.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"24 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141776881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Molecular Recognition of VSIG1 in Biological Samples for Fast Diagnosis of Gastric Cancer 生物样本中 VSIG1 的分子识别用于快速诊断胃癌

IF 3.9 4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-07-25 DOI: 10.1149/1945-7111/ad6508

Raluca-Ioana Stefan-van Staden, Damaris-Cristina Gheorghe and Ruxandra-Maria Ilie-Mihai

引用次数: 0

Mass Transfer Process by Diffusion of RE(III) (RE=La, Pr) in Eutectic LiCl-KCl Salt RE(III) (RE=La, Pr)在共晶锂-氯化钾盐中的扩散传质过程

IF 3.9 4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-07-24 DOI: 10.1149/1945-7111/ad6480

Hedi Wei, Mei Li, Yixuan Cai, Yabin Wang, Xudong Wang, Xiaohui Lan, Meng Zhang, Rugeng Liu and Wei Han

{"title":"Mass Transfer Process by Diffusion of RE(III) (RE=La, Pr) in Eutectic LiCl-KCl Salt","authors":"Hedi Wei, Mei Li, Yixuan Cai, Yabin Wang, Xudong Wang, Xiaohui Lan, Meng Zhang, Rugeng Liu and Wei Han","doi":"10.1149/1945-7111/ad6480","DOIUrl":"https://doi.org/10.1149/1945-7111/ad6480","url":null,"abstract":"Mass transfer is an important link in the entire electrode process. To investigate mass transfer process by diffusion of trivalent rare Earth ions in molten LiCl-KCl system, the electroreduction mechanism, mass transfer kinetics and diffusion layer thicknesses of RE(III) (RE = La and Pr) were studied by a series of electrochemical methods. It was found that RE(III) underwent one-step reduction reaction with the exchange of 3-electron and reversible processes. The diffusion coefficients (D) of RE(III) and limiting current densities (jl) for RE(III)/RE pair were measured at different temperatures and concentrations by cyclic voltammetry and chronoamperometry, respectively. Based on the results of D and jl, the diffusion layer thickness (δ) of RE(III) was calculated using the simplified Nernst-Planck formula. Furthermore, the impacts of temperature and concentration on δ were explored. The results indicated that as the temperature declined and ions concentration increased, δ decreased. Meanwhile, the relationships between δ and temperature and concentration were also obtained.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"23 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141777045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Numerical Analysis of Stainless Steel of Crevice Corrosion Initiation Behavior with Varying External Potentials and Initial Crevice Gaps 不同外部电位和初始缝隙条件下不锈钢缝隙腐蚀引发行为的数值分析

IF 3.9 4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-07-16 DOI: 10.1149/1945-7111/ad5cc5

Akira Nagaoka, Hiroshi Yakuwa, Ryotaro Yamamoto and Kenji Amaya

{"title":"Numerical Analysis of Stainless Steel of Crevice Corrosion Initiation Behavior with Varying External Potentials and Initial Crevice Gaps","authors":"Akira Nagaoka, Hiroshi Yakuwa, Ryotaro Yamamoto and Kenji Amaya","doi":"10.1149/1945-7111/ad5cc5","DOIUrl":"https://doi.org/10.1149/1945-7111/ad5cc5","url":null,"abstract":"The potential, current density, pH, and crevice profile distribution within the crevice structure of stainless steel in seawater were numerically analyzed. The crevice corrosion phenomena were mathematically modeled with the initial boundary value problem of diffusion and static electrical field, respectively. This initial boundary value problem was discretized using a finite difference method. The predicts of the crevice corrosion behaviors, set for various external potentials and initial crevice gaps, were classified into three categories: the pitting type, the active type, and no corrosion. The pitting type crevice corrosion was predicted to occur in conditions where the external potentials were noble and the initial crevice gaps were narrow. The active type crevice corrosion was predicted to occur in conditions where the external potentials were less noble and the initial crevice gaps were narrow. The range of external potential conditions where crevice corrosion was predicted not to occur increased in conditions with wide initial crevice gaps. Crevice corrosion was predicted to occur at all external potentials in conditions where the initial crevice gaps were 2 μm or less.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"45 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141740409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

The Dominant Effect of Electrolyte Concentration on Rechargeability of γ-MnO2 Cathodes in Alkaline Batteries 电解质浓度对碱性电池中 γ-MnO2 阴极充电能力的主要影响

IF 3.9 4区工程技术

Journal of The Electrochemical Society Pub Date : 2024-07-14 DOI: 10.1149/1945-7111/ad5976

Snehal Kolhekar, Michael Nyce and Sanjoy Banerjee

{"title":"The Dominant Effect of Electrolyte Concentration on Rechargeability of γ-MnO2 Cathodes in Alkaline Batteries","authors":"Snehal Kolhekar, Michael Nyce and Sanjoy Banerjee","doi":"10.1149/1945-7111/ad5976","DOIUrl":"https://doi.org/10.1149/1945-7111/ad5976","url":null,"abstract":"Achieving high cycle life rechargeable γ-MnO2 cathodes in alkaline batteries face many challenges. Chief among these is the inability of the γ-MnO2 polymorph to retain its structural integrity when cycled to high utilization of its theoretical capacity ∼300 mAh g−1. In this paper, we investigate the root cause of failure of MnO2 cathodes under deep cycling in the one-electron discharge range and establish a strong link between capacity fade and the amount of birnessite formed. We uncover the underlying cause of failure by cycling industrial scale γ-MnO2 cathodes at various levels of theoretical capacity utilization (100%, 50%, and 30%) and in different KOH concentrations (37, 25, and 10 wt%). To determine materials evolution the cycled cathodes were dissected, characterized and analyzed using SEM, XRD, FIB/SEM, EIS, and XPS. Based on our findings, we propose that one major cause of failure of MnO2 cathodes stems from the solubility of Mn+3 formed during discharge which effectively results in destruction of the γ-MnO2 phase and amorphization of the cathode. The results show that the bulk of the γ-MnO2 phase is preserved only in ∼10 wt% KOH, which indicates the attractive range of KOH concentration for cycling of rechargeable γ-MnO2 cathodes.","PeriodicalId":17364,"journal":{"name":"Journal of The Electrochemical Society","volume":"40 1","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141720522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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