Journal of The Electrochemical Society最新文献_第7页

Fast-Charging Carbon Fiber Structural Battery Electrodes Using an Organic Polymer Active Material 使用有机聚合物活性材料的快速充电碳纤维结构电池电极

Journal of The Electrochemical Society Pub Date : 2024-06-11 DOI: 10.1149/1945-7111/ad570a

Suyash Oka, Ratul Mitra Thakur, Chen Wang, Vishaal Vidyaprakash, Coby Scrudder, D. Lagoudas, James Boyd, Micah J. Green, J. Lutkenhaus

{"title":"Fast-Charging Carbon Fiber Structural Battery Electrodes Using an Organic Polymer Active Material","authors":"Suyash Oka, Ratul Mitra Thakur, Chen Wang, Vishaal Vidyaprakash, Coby Scrudder, D. Lagoudas, James Boyd, Micah J. Green, J. Lutkenhaus","doi":"10.1149/1945-7111/ad570a","DOIUrl":"https://doi.org/10.1149/1945-7111/ad570a","url":null,"abstract":"\u0000 Structural batteries require electrodes with integrated energy storage and load-bearing properties. Adoption of structural batteries can lead to mass and volume savings in electrified transportation and aerospace applications by storing energy within the object’s structural elements. However, to date, active materials investigated in structural batteries exhibit poor rate capabilities at higher C-rates and even worse performance at lower temperatures due to diffusion limitations. Organic radical polymers are promising alternatives because they possess fast-charging properties and good cycling stability. In this work, we integrate an organic radical polymer with carbon fiber (CF) fabric, in which the polymer acts as the active cathode material and the CF fabric possesses excellent tensile strength, modulus and electronic conductivity. At 20°C, the structural cathodes exhibited a reversible capacity of 67 mAh g-1 at 1C-rate and an 88% capacity retention at 25C-rate. Further, these structural electrodes retained more than 50% of their performance at -10°C (versus 20°C). These electrodes were further examined in a full cell containing a graphite-based anode, demonstrating a pathway for utilizing redox-active polymer-based active materials in structural and fast-charging organic batteries.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":"45 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141358747","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

Computational Method for Optimal Electrolyte Screening Using Bayesian Optimization and Physics Based Battery Model 利用贝叶斯优化和基于物理的电池模型进行最佳电解质筛选的计算方法

Journal of The Electrochemical Society Pub Date : 2024-06-11 DOI: 10.1149/1945-7111/ad570b

Vamsi Krishna Garapati, N. N. Dingari, Mahesh Mynam, Beena Rai

引用次数: 0

Study of Solid-State Diffusion Impedance in Li-Ion Batteries Using Parallel-Diffusion Warburg Model 利用平行扩散沃伯格模型研究锂离子电池中的固态扩散阻抗

Journal of The Electrochemical Society Pub Date : 2024-06-11 DOI: 10.1149/1945-7111/ad5707

Xinhua Zhu, Marta Cazorla Soult, Benny Wouters, M. H. Mamme

引用次数: 0

Air Plasma Modification of Graphite-Based Electrode for Improved Performance of Aqueous Redox Flow Batteries 空气等离子体改性石墨电极以提高水氧化还原液流电池的性能

Journal of The Electrochemical Society Pub Date : 2024-06-11 DOI: 10.1149/1945-7111/ad5709

Patricia Bassil, Coumba Fall, Karim Boutamine, Frédéric Favier, S. Le Vot

{"title":"Air Plasma Modification of Graphite-Based Electrode for Improved Performance of Aqueous Redox Flow Batteries","authors":"Patricia Bassil, Coumba Fall, Karim Boutamine, Frédéric Favier, S. Le Vot","doi":"10.1149/1945-7111/ad5709","DOIUrl":"https://doi.org/10.1149/1945-7111/ad5709","url":null,"abstract":"\u0000 Graphite felt is widely utilized as a porous carbon electrode in aqueous redox flow batteries (RFBs). However, its inherent hydrophobic nature and limited electrochemical activity present challenges. While the correlation between RFB performance and electrode properties has been extensively studied for vanadium chemistry and other inorganic redox active materials, it remains scarce in literature for organic systems. In this study, we employ air plasma treatment, known for its controllability, solvent-free nature, and short treatment duration, to modify commercially available graphite felt for RFB applications. A comprehensive analysis is conducted to establish correlations between plasma treatment, physical properties, electrochemical characteristics, and overall cell performance in aqueous RFBs. Comparative evaluation reveals a significant enhancement, with treated graphite felt exhibiting an 85% increase in capacity at 140 mA cm-2 compared to its pristine counterpart. By intentionally utilizing authentic RFB electrodes and employing state-of-the-art ferrocyanide posolyte, this study underscores the crucial role of the interface, even for rapid (reversible) redox-active materials utilized in AORFBs.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":"99 46","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141359099","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

Numerical Analysis and Research on Mass Transfer Performance of Vanadium Redox Flow Battery Based on Novel Spiral Flow Field 基于新型螺旋流场的钒氧化还原液流电池传质性能的数值分析与研究

Journal of The Electrochemical Society Pub Date : 2024-06-11 DOI: 10.1149/1945-7111/ad5706

Zeyu Li, Fuzhen Wang, Zebo Huang

引用次数: 0

Dendrite/Volume Expansion-Free Lithium Deposition Inside the Enclosed Nanoscale Space of Electrochemically Modified Graphite 电化学改性石墨封闭纳米级空间内的树枝状晶/无体积膨胀锂沉积物

Journal of The Electrochemical Society Pub Date : 2024-06-10 DOI: 10.1149/1945-7111/ad5623

Danfeng Ying, Xufeng Zhou, Tengsheng Chi, Meichen Liu, Yimei Li, Wei Wang, Z. Liu

{"title":"Dendrite/Volume Expansion-Free Lithium Deposition Inside the Enclosed Nanoscale Space of Electrochemically Modified Graphite","authors":"Danfeng Ying, Xufeng Zhou, Tengsheng Chi, Meichen Liu, Yimei Li, Wei Wang, Z. Liu","doi":"10.1149/1945-7111/ad5623","DOIUrl":"https://doi.org/10.1149/1945-7111/ad5623","url":null,"abstract":"\u0000 Though over-lithiation of graphite can increase the initial specific capacity of the anodes, the cycling stability is unsatisfactory as metallic lithium depositing on the surface of graphite has poor reversibility. In this work, we utilize electrochemical co-intercalation of Li+ and diethylene glycol dimethyl ether (DEGDME) to prepare [Li-DEGDME]+-graphite co-intercalation compounds ([Li-DEGDME]-Gr) from pristine graphite. The expanded d-spacing and abundant cross-layer voids in the intralayer structure of [Li-DEGDME]-Gr owing to the co-intercalation of [Li-DEGDME]+ complex ions and parasitic chemical reactions between solvent molecules and graphene layers promotes the migration of bare Li+ and provides sufficient interior space for extra lithium-storage. As a result, a much higher lithium-storage capacity of 810 mAh g-1 can be successfully achieved. The extra lithium-storage is proved to originate from the deposition of lithium metal inside the enclosed nanoscale space of the as modified graphite, which inhibits the formation of lithium dendrites, isolates lithium metal from electrolytes and avoids volumetric expansion, enabling the [Li-DEGDME]-Gr electrodes to exhibit better cycling stability with high specific capacity. This work proposes a new strategy to enhance the reversibility of lithium metal plating/stripping by accommodating lithium deposition inside modified carbon materials, thus effectively increases the reversible capacity of graphite-based anode materials.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":" October","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141364528","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

Analysis of Lithium-ion Batteries through Electrochemical Impedance Spectroscopy Modeling 通过电化学阻抗光谱建模分析锂离子电池

Journal of The Electrochemical Society Pub Date : 2024-06-10 DOI: 10.1149/1945-7111/ad561f

Vamsee Krishna Teki, Jahnavi Kasi, Saiprakash Chidurala, Subhashree Priyadarshini, S. Joga, M. K. Maharana, C. Panigrahi

{"title":"Analysis of Lithium-ion Batteries through Electrochemical Impedance Spectroscopy Modeling","authors":"Vamsee Krishna Teki, Jahnavi Kasi, Saiprakash Chidurala, Subhashree Priyadarshini, S. Joga, M. K. Maharana, C. Panigrahi","doi":"10.1149/1945-7111/ad561f","DOIUrl":"https://doi.org/10.1149/1945-7111/ad561f","url":null,"abstract":"\u0000 Electrochemical impedance spectroscopy (EIS) is a very effective methodology employed in the evaluation of performance and degradation mechanisms associated with lithium-ion batteries. In order to comprehend the complex electrochemical processes taking place within these energy storage devices, reliable and effective diagnostic tools are required due to the constant improvements in battery technology. EIS methodology has gained prominence as a very effective non-destructive method for examining the electrochemical characteristics of batteries. This technique offers significant contributions by providing useful insights into the internal operations of batteries. The main objective of this study is to create an electrical equivalent circuit model of a lithium-ion battery based on physics, and then use EIS to comprehend the electrical behavior and impedance of the battery to evaluate its performance under various operating scenarios. We seek to identify the critical elements influencing the battery's capacity, performance, and lifespan by capturing the intricate interaction of EIS. The results of this research are going to enhance the understanding of battery behavior and supporting the design as a more reliable and efficient energy storage systems for a wide range of applications, from portable electronic devices to electric vehicles and renewable energy integration.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":"119 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141361201","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

Impact of Mechanical Degradation in Polycrystalline NMC Particle on the Electrochemical Performance of Lithium-Ion Batteries 多晶 NMC 粒子的机械降解对锂离子电池电化学性能的影响

Journal of The Electrochemical Society Pub Date : 2024-06-10 DOI: 10.1149/1945-7111/ad5622

Vinit Nagda, Henrik Ekström, Artem Kulachenko

{"title":"Impact of Mechanical Degradation in Polycrystalline NMC Particle on the Electrochemical Performance of Lithium-Ion Batteries","authors":"Vinit Nagda, Henrik Ekström, Artem Kulachenko","doi":"10.1149/1945-7111/ad5622","DOIUrl":"https://doi.org/10.1149/1945-7111/ad5622","url":null,"abstract":"\u0000 Lithium-ion batteries (LIBs) are widely chosen for energy storage owing to their high coulombic efficiency and energy density. Within the positive electrode materials of LIBs, the structural integrity of secondary particles, composed of randomly oriented single-crystal primary particles, is crucial for sustained performance. These particles can fracture as a result of both mechanical stress and chemical interactions within the solid. Modelling LIBs is a complex task involving electro-chemo-mechanical phenomena and their interactions on different length scales. This study proposes a numerical modeling framework to investigate the active particle degradation and its impact on electrochemical performance. The model integrates mechanical and electrochemical processes, tracking crack evolution and mechanical failure through phase field damage. The coupled time-dependent non-linear partial differential equations are solved in a finite element framework using COMSOL Multiphysics. The model offers numerical insights into intergranular and transgranular fracture within secondary particles. The electrolyte infiltration into cracks reduces the electrochemical overpotential due to the increase in electrochemically active surface area, positively affecting performance. However, prolonged cycling with particle cracking poses severe threat to the battery performance and capacity. This comprehensive numerical modeling approach provides valuable insights into the intricate interplay of mechanical and electrochemical factors governing LIB performance and degradation.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":" 50","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141365410","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

Trading Off Initial PEM Fuel Cell Performance versus Voltage Cycling Durability for Different Carbon Support Morphologies 不同碳支撑形态的 PEM 燃料电池初始性能与电压循环耐久性的权衡

Journal of The Electrochemical Society Pub Date : 2024-06-10 DOI: 10.1149/1945-7111/ad5624

Timon Lazaridis, R. K. F. Della Bella, H. Gasteiger

{"title":"Trading Off Initial PEM Fuel Cell Performance versus Voltage Cycling Durability for Different Carbon Support Morphologies","authors":"Timon Lazaridis, R. K. F. Della Bella, H. Gasteiger","doi":"10.1149/1945-7111/ad5624","DOIUrl":"https://doi.org/10.1149/1945-7111/ad5624","url":null,"abstract":"\u0000 Tailored design of carbon supports and their pore morphologies is crucial to achieve the ambitious durability and performance targets for future proton exchange membrane fuel cells (PEMFCs). We compared platinum catalysts supported on solid Vulcan carbon, porous Ketjenblack carbon, and accessible porous modified Ketjenblack carbon in a voltage cycling-based accelerated stress test (AST) with frequent intermittent characterizations. We derived how catalyst morphologies affect cell performance and electrochemical properties (electrode roughness factor, ORR activity, oxygen transport resistances) at beginning-of-life (BoL) and in various states of degradation up to 200,000 voltage cycles. We confirmed the enhanced Pt surface area retention of porous carbon-supported catalysts, ascribed to well-shielded Pt particles in internal pores, but find that this comes at the expense of lower initial high current density performance already at BoL. Accessible porous carbon-supported catalysts with wider pores mostly retain those durability benefits while, simultaneously, maximizing H2/air performance at all current densities due to improved oxygen transport. We also tracked changes in catalyst accessibility throughout voltage cycling by analyzing local oxygen transport resistances and relative humidity-dependent platinum utilization. We propose that catalysts with porous carbon supports undergo oxidative pore opening, followed by continuous migration of internal Pt particles to the external carbon surface.","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":"116 34","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141363138","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

An Investigation of Li-Ion Cell Degradation Caused by Simulated Autoclave Cycles 模拟高压釜循环导致锂离子电池降解的研究

Journal of The Electrochemical Society Pub Date : 2024-06-10 DOI: 10.1149/1945-7111/ad5625

T. Taskovic, Alison Clarke, J. Harlow, Sasha Martin-Maher, Kenneth Tuul, Ethan Eastwood, Michel Johnson, Jeff R. Dahn

{"title":"An Investigation of Li-Ion Cell Degradation Caused by Simulated Autoclave Cycles","authors":"T. Taskovic, Alison Clarke, J. Harlow, Sasha Martin-Maher, Kenneth Tuul, Ethan Eastwood, Michel Johnson, Jeff R. Dahn","doi":"10.1149/1945-7111/ad5625","DOIUrl":"https://doi.org/10.1149/1945-7111/ad5625","url":null,"abstract":"\u0000 Li[Ni0.6Mn0.4Co0.0]O2/graphite (NMC640, balanced for 4.1 V cut-off) and Li[Ni0.83Mn0.06Co0.11]O2/graphite (Ni83, balanced for 4.06 V cut-off) pouch cells were tested using lab-simulated autoclave conditions. After every cycle, the cells at either 3.4, 3.7, or 3.9 V were placed in a 120°C oven for 40 min to undergo an “autoclave” run, then continued for another cycle. Electrolyte blends using lithium bis(fluorosulfonyl)imide (LiFSI) salt were used to improve the cycle-life of autoclaved cells. The lab autoclave protocol was also performed on LiFePO4/graphite (LFP) and NMC commercial cylindrical cells, which were advertised for use in or found in autoclaved medical devices. LFP cells performed poorly in the simulated autoclave tests, while commercial high-temperature-tolerant NMC cylindrical cells and the pouch cells performed similarly. In continuous testing at 85°C, the pouch cells had better capacity retention than both cylindrical cell types. However, the pouch cells suffered from electrolyte permeation through the polymer seals. The pouch cell chemistries incorporated in cylindrical cell format would probably give superior performance to the commercial cells in the autoclave tests. Cell lifetimes were improved when cells were placed into the 120°C oven at a lower voltage suggesting that hospitals should charge Li-ion cells after the autoclaving process instead of standard practice of before","PeriodicalId":509718,"journal":{"name":"Journal of The Electrochemical Society","volume":"5 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141363398","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