Journal of The Electrochemical Society最新文献_第6页

Parameters Optimization for Electrophoretic Deposition of Mn1.5Co1.5O4 on Ferritic Stainless Steel Based on Multi-Physical Simulation 基于多物理场模拟的铁素体不锈钢上 Mn1.5Co1.5O4 电泳沉积参数优化

Journal of The Electrochemical Society Pub Date : 2024-06-14 DOI: 10.1149/1945-7111/ad5871

yaqin Zhou, jingwen Mao, Enhua Wang, H. Zhang

{"title":"Parameters Optimization for Electrophoretic Deposition of Mn1.5Co1.5O4 on Ferritic Stainless Steel Based on Multi-Physical Simulation","authors":"yaqin Zhou, jingwen Mao, Enhua Wang, H. Zhang","doi":"10.1149/1945-7111/ad5871","DOIUrl":"https://doi.org/10.1149/1945-7111/ad5871","url":null,"abstract":"\u0000 Solid oxide fuel cells (SOFCs) are an effective and sustainable technology for hydrogen utilization. As operating temperatures decrease, metal interconnects and supports are widely employed in SOFCs. It is critical to apply a protective coat on ferritic stainless steel (FSS) to suppress Cr evaporation and element interdiffusion under high temperatures. Electrophoretic deposition (EPD) is a promising approach for depositing metal oxides on FSS substrate. Here, a method based on 3D multi-physical simulation and orthogonal experimental design was proposed to optimize deposition parameters, including applied voltage, deposition time, and electrode distance. The EPD process to deposit Mn1.5Co1.5O4 particles in a suspension of ethanol and isopropanol was simulated and the effects of these three factors on the film thickness and uniformity were analyzed. The results indicate that applied voltage has the greatest impact on deposition thickness, followed by deposition time and electrode distance. Meanwhile, deposition time exhibits a more significant effect on film unevenness than applied voltage. Additionally, the particle-fluid coupling phenomenon was analyzed during the EPD process. In practice, these deposition parameters must be selected appropriately and the deposition time must be controlled to obtain a uniform coating. The proposed method can reduce cost and shorten the design period.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":"59 23","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141344858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication of Microporous Palladium by Selective Anodic Dissolution of Ag-Pd Ag-Pd Alloy in Alkali Chlorides Melt 通过在碱氯化物熔体中选择性阳极溶解银钯合金制备微孔钯

Journal of The Electrochemical Society Pub Date : 2024-06-14 DOI: 10.1149/1945-7111/ad586e

Nina Kulik, Nikolay Tkachev, Georgy Starostin, Boris Antonov, Alexander Alexandrovich Chernyshev, Nikolay Shurov, Alexandr Pankratov, Leonid Sitnikov

{"title":"Fabrication of Microporous Palladium by Selective Anodic Dissolution of Ag-Pd Ag-Pd Alloy in Alkali Chlorides Melt","authors":"Nina Kulik, Nikolay Tkachev, Georgy Starostin, Boris Antonov, Alexander Alexandrovich Chernyshev, Nikolay Shurov, Alexandr Pankratov, Leonid Sitnikov","doi":"10.1149/1945-7111/ad586e","DOIUrl":"https://doi.org/10.1149/1945-7111/ad586e","url":null,"abstract":"\u0000 The electrochemical dealloying of Ag40Pd60 alloys in (LiCl)57(CsCl)26(KCl)17 melt with the addition of 3 mol % silver chloride was studied. Selective anodic dissolution of the alloy was carried out both in the potentiostatic and in galvanostatic regimes at temperatures ranging from 300 to 500°C. The obtained voltammetry characteristics of the initial alloy, chronoamperograms, and chronopotentiogram during the dealloying are presented and discussed. At a temperature near 500°C, the second maximum was observed in the chronoamperograms at two different values of the set potential. The unusual shape of the current curves is due to the superposition of several diffusion processes, which intensities in this case are greater than at lower temperatures. Bi-continuous structures of practically pure palladium with pores and ligaments of sizes ranging from a few to tens of micrometers were obtained in the potentiostatic regime. As the dealloying temperature increased, the sizes of pores and ligaments increased naturally. The same effect was also caused by the increase in applied potential. In the galvanostatic mode similar metallic structures were obtained, but the residual silver content reached 5%, and, in addition, the effects of samples sintering appeared.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":"34 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141344341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrodeposition of Thin Silicon Films for Neutron Transmutation Doping 用于中子嬗变掺杂的电沉积硅薄膜

Journal of The Electrochemical Society Pub Date : 2024-06-13 DOI: 10.1149/1945-7111/ad57f8

Isakov Andrey, S. Khvostov, Michael Laptev, Anastasia Khudorozhkova, O. Grishenkova, Yuriy Pavlovich Zaikov

引用次数: 0

Perspective—Moving Next-Generation Phase-Field Models to BMS Applications:A Case Study that Confirms Professor Uzi Landau's Foresight 视角--将下一代相场模型应用于 BMS：一项证实 Uzi Landau 教授远见卓识的案例研究

Journal of The Electrochemical Society Pub Date : 2024-06-13 DOI: 10.1149/1945-7111/ad57f9

T. Telmasre, Anthony César Concepción, S. Kolluri, Lubhani Mishra, R. Thiagarajan, Aditya Naveen Matam, Akshay Subramaniam, Taylor R. Garrick, V. Subramanian

引用次数: 0

Minor Faults Diagnosis for Under-Sampled Lithium-Ion Batteries Based on Static-Dynamic Compensation 基于静态动态补偿的欠采样锂离子电池轻微故障诊断

Journal of The Electrochemical Society Pub Date : 2024-06-12 DOI: 10.1149/1945-7111/ad5768

Maab Ali, Jinglun Li, Xin Gu, Xuewen Tao, Ziheng Mao, Yunlong Shang

{"title":"Minor Faults Diagnosis for Under-Sampled Lithium-Ion Batteries Based on Static-Dynamic Compensation","authors":"Maab Ali, Jinglun Li, Xin Gu, Xuewen Tao, Ziheng Mao, Yunlong Shang","doi":"10.1149/1945-7111/ad5768","DOIUrl":"https://doi.org/10.1149/1945-7111/ad5768","url":null,"abstract":"\u0000 With the rapid proliferation of electric vehicles, the safety concerns related to lithium-ion batteries are gaining more and more attention. Fault diagnosis is a key approach to reducing the risk of battery failure. However, existing battery management systems (BMS) apply under-sampled voltage signal acquisition, which leads to misdiagnosis and omission of faults. To address this issue, a minor fault early diagnosis method based on static-dynamic compensation voltage data is proposed. First, the voltages of the series-connected cells are asynchronously collected. Then, the collected voltage sequences from various modules are mapped to the voltage sequence of the target battery using the static-dynamic compensating method, which can obtain a new sequence with a significantly higher equivalent sampling frequency. Finally, the sample entropy method is employed to detect minor faults based on the new sequence after compensation. Experimental results reveal that the presented method can increase the sampling frequency by about 8 times. The proposed method can successfully detect minor short circuits and poor connection faults in the battery under different ambient temperatures.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":"8 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141354259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Multilayer Doyle-Fuller-Newman Model to Optimise the Rate Performance of Bilayer Cathodes in Li Ion Batteries 优化锂离子电池双层阴极速率性能的多层 Doyle-Fuller-Newman 模型

Journal of The Electrochemical Society Pub Date : 2024-06-12 DOI: 10.1149/1945-7111/ad5767

E. Tredenick, Samuel Wheeler, Ross Drummond, Yige Sun, Stephen R. Duncan, Patrick Grant

{"title":"A Multilayer Doyle-Fuller-Newman Model to Optimise the Rate Performance of Bilayer Cathodes in Li Ion Batteries","authors":"E. Tredenick, Samuel Wheeler, Ross Drummond, Yige Sun, Stephen R. Duncan, Patrick Grant","doi":"10.1149/1945-7111/ad5767","DOIUrl":"https://doi.org/10.1149/1945-7111/ad5767","url":null,"abstract":"\u0000 Bilayer cathodes comprising two active materials are explored for their ability to improve lithium-ion battery charging performance. Electrodes are manufactured with various arrangements of lithium nickel manganese cobalt oxide Li[Ni0.6Co0.2Mn0.2]O2 (NMC622) and lithium iron phosphate LiFePO4 (LFP) active particles, including in two different discrete sub-layers. We present experimental data on the sensitivity of the electrode C rate performance to the electrode design. To understand the complex bilayer electrode performance, and to identify an optimal design for fast charging, we develop an extension to the Doyle-Fuller-Newman (DFN) model of electrode dynamics that accommodates different active materials in any number of sub-layers, termed the multilayer DFN (M-DFN) model. The M-DFN model is validated against experimental data and then used to explain the performance differences between the electrode arrangements.We show how the different open circuit potential functions of NMC and LFP can be exploited synergistically through electrode design. Manipulating the Li electrolyte concentration increases achievable capacity. Finally the M-DFN model is used to further optimise the best performing bilayer electrode arrangement by adjusting the ratio of the LFP and NMC sub-layer thickness.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":"28 26","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141354484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrochemical and Cycle Analysis of Water-in-Salt K-Acetate Electrolyte Zn-Ion Batteries Under Commercially-Relevant Conditions 商业相关条件下盐包水 K-Acetate 电解质锌离子电池的电化学和循环分析

Journal of The Electrochemical Society Pub Date : 2024-06-12 DOI: 10.1149/1945-7111/ad5769

D. Turney, Debayon Dutta, Sanjoy Banerjee, Timothy N. Lambert, Nelson S. Bell

{"title":"Electrochemical and Cycle Analysis of Water-in-Salt K-Acetate Electrolyte Zn-Ion Batteries Under Commercially-Relevant Conditions","authors":"D. Turney, Debayon Dutta, Sanjoy Banerjee, Timothy N. Lambert, Nelson S. Bell","doi":"10.1149/1945-7111/ad5769","DOIUrl":"https://doi.org/10.1149/1945-7111/ad5769","url":null,"abstract":"\u0000 Water-in-salt electrolyte (WiSE) promises high-voltage battery technology with low fire risk. Here we assess potassium acetate (KAc) WiSE for Zn ion batteries under commercially relevant conditions. Rotating disc electrode analysis of WiSE degradation and Zn plating/deplating suggest a solid electrolyte interphase (SEI) layer dominates. Butler-Volmer kinetics and Koutecky-Levich mass-transfer are of secondary importance. Measurements of chemical potential reveal that bulk solvation of H2O (in KAc or lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) WiSE) is insignificant compared to SEI blocking. Zinc cycling in KAc WiSE with practical rates (~0.3 to 8.0 mA/cm2) and areal capacities (>20 mAh/cm2) shows dendrites are less prominent than in KOH, but the SEI layer suppresses the electrochemical reaction too much for commercial feasibility. Dilution or convection of the WiSE alleviates the SEI blocking effects. Cu substrate shows good Zn adhesion, but Ti, Sn, and Ni show poor adhesion. Cathodes made with chevrel (Mo6S8) reversibly intercalate Zn2+ to form a novel battery technology, but yield <1.0 V cell voltage. Cathodes made with zinc-containing Prussian blue analogues (ZnHCF or ZnMnHCF) yield a voltage near 2.0 V but appear incompatible with cycling in the present KAc WiSE formulation. Future research directions for KAc WiSE are proposed to focus on SEI dynamics and Prussian blue compatibility","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":"9 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141354900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of High Local Diffusive Mass Transfer on Acidic Oxygen Reduction of Pt Catalysis 高局部扩散传质对铂催化酸性氧还原的影响

Journal of The Electrochemical Society Pub Date : 2024-06-12 DOI: 10.1149/1945-7111/ad576e

Wenzhan Wu, Pengzhu Lin, Bin Liu, Jianbo Xu, Jing Sun, T. Zhao

{"title":"Effect of High Local Diffusive Mass Transfer on Acidic Oxygen Reduction of Pt Catalysis","authors":"Wenzhan Wu, Pengzhu Lin, Bin Liu, Jianbo Xu, Jing Sun, T. Zhao","doi":"10.1149/1945-7111/ad576e","DOIUrl":"https://doi.org/10.1149/1945-7111/ad576e","url":null,"abstract":"\u0000 In this study, we utilized a platinum ultramicroelectrode (UME) as a model platform for platinum electrocatalysts in acidic electrolytes to study the effects of local mass transfer on the oxygen reduction reaction (ORR), which plays a significant role in fuel cell with reduced pt loading. Finite element simulations showed that the UME exhibits size-dependent ultrathin diffusion layers during the electrochemical process. Submicron-scale UMEs can achieve ultrahigh localized mass transfer, which is unattainable through other experimental techniques. By conducting catalytic experiments under various mass transfer conditions, we found that the mass transfer limiting current is significantly lower than the value predicted by the four-electron process equation. Additionally, the apparent electron transfer number (napp) decreases as the mass transfer coefficient (m0) increases. Furthermore, as m0 increases, the half-wave potential shifts toward more negative values, allowing for the evaluation of the intrinsic activity of the catalysts over a broader potential range. Due to the UME technique's capacity to conveniently control local mass transfer, we foresee its potential application in understanding the effects of chemical microenvironments on complex electrochemical reactions, including ORR and other processes.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":"133 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141351328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance Losses and Current-Driven Recovery from Cation Contaminants in PEM Water Electrolysis PEM 水电解中的性能损失和电流驱动的阳离子污染物回收

Journal of The Electrochemical Society Pub Date : 2024-06-12 DOI: 10.1149/1945-7111/ad576b

Elliot Padgett, Anthony Adesso, Haoran Yu, J. Wrubel, Guido Bender, B. Pivovar, S. Alia

{"title":"Performance Losses and Current-Driven Recovery from Cation Contaminants in PEM Water Electrolysis","authors":"Elliot Padgett, Anthony Adesso, Haoran Yu, J. Wrubel, Guido Bender, B. Pivovar, S. Alia","doi":"10.1149/1945-7111/ad576b","DOIUrl":"https://doi.org/10.1149/1945-7111/ad576b","url":null,"abstract":"\u0000 Water contaminants are a common cause of failure for polymer electrolyte membrane (PEM) electrolyzers in the field as well as a confounding factor in research on cell performance and durability. In this study, we investigated the performance impacts of feed water containing representative tap water cations at concentrations ranging from 0.5 – 500 μM, with conductivities spanning from ASTM Type II to tap-water levels. We present multiple diagnostic signatures to help identify the presence of contaminants in PEM electrolysis cells. Through analysis of polarization curves and impedance spectroscopy to understand the origins of performance losses, we found that a switch from the acidic to alkaline hydrogen evolution mechanism is a key factor in contaminated cell behavior. Finally, we demonstrated that this mechanism switching can be harnessed to remove cation contaminants and recover cell performance without the use of an acid wash. We demonstrated near-complete recovery of cells contaminated with sodium and calcium, and partial recovery of a cell contaminated with iron, which was further investigated by post-mortem microscopy. The improved understanding of contaminant impacts from this work can inform development of strategies to mitigate or recover performance losses as well as improve the consistency and rigor of electrolysis research.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":"1 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141353614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling of Pore-Scale Capillary-Dominated Flow and Bubble Detachment in PEM Water Electrolyzer Anodes Using the Volume of Fluid Method 利用流体体积法建立 PEM 水电解槽阳极中孔隙尺度毛细管主导流和气泡脱落的模型

Journal of The Electrochemical Society Pub Date : 2024-06-11 DOI: 10.1149/1945-7111/ad5708

G. Schmidt, Daniel Niblett, Vahid J. Niasar, I. Neuweiler

{"title":"Modeling of Pore-Scale Capillary-Dominated Flow and Bubble Detachment in PEM Water Electrolyzer Anodes Using the Volume of Fluid Method","authors":"G. Schmidt, Daniel Niblett, Vahid J. Niasar, I. Neuweiler","doi":"10.1149/1945-7111/ad5708","DOIUrl":"https://doi.org/10.1149/1945-7111/ad5708","url":null,"abstract":"\u0000 Fluid dynamics models complement expensive experiments with limited measurement accuracy that investigate the mass transport in PEM water electrolysis. Here, a first-principle microscale model for oxygen transport is successfully validated that accounts for (1) uncertain transport processes in catalyst layers, (2) numerically challenging capillary-dominated two-phase flow and (3) bubble detachments in channels. We developed algorithms for the stochastic generation of geometries and for the coupling of flow and transport processes. The flow model is based on the volume of fluid method and reproduces experimentally measured pressure drops and bubble velocities within minichannels with a 30% and 20% accuracy, respectively, provided that the capillary number is above 2.1·10-7. At lower capillary numbers, excessive spurious currents occur. Correspondingly, two-phase flow simulations within the porous transport layers are stable at current densities above 0.5 Acm-2 and match operando gas saturation measurements within a 20% margin at relevant locations. The simulated bubble detachments occur at pore throats that agree with porosimetry and microfluidic experiments. The presented model allows explaining and optimizing mass transport processes in channels and porous transport layers. These were found to be negligibly sensitive to transport resistances within the catalyst layer, providing information on boundary conditions for future catalyst layer models.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":"97 39","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141359125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0