ChemElectroChem最新文献_第10页

Application of Bioelectrochemical System in Nitrogen Removal via Simultaneous Autotrophic Nitrification and Denitrification from Wastewater 生物电化学系统在废水自养硝化反硝化脱氮中的应用

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-10-24 DOI: 10.1002/celc.202400432

Parisa Ebrahimzadeh, Nahid Navidjouy, Hassan Khorsandi, Mostafa Rahimnejad

{"title":"Application of Bioelectrochemical System in Nitrogen Removal via Simultaneous Autotrophic Nitrification and Denitrification from Wastewater","authors":"Parisa Ebrahimzadeh, Nahid Navidjouy, Hassan Khorsandi, Mostafa Rahimnejad","doi":"10.1002/celc.202400432","DOIUrl":"https://doi.org/10.1002/celc.202400432","url":null,"abstract":"Bioelectrochemical systems (BES) is a new and expanding technology that can simultaneously convert chemical energy into electrical energy by removing nutrients. The present study investigated the BES in removing nitrogen compounds and produce electricity. To this end, a BES reactor with two chambers of cathode and anode and nafion 117 membrane was used as a separator between the two chambers. Then, the BES performance at different concentrations of COD and primary ammonium at different retention times was investigated to remove nitrogen compounds and organic matter. Voltage, current and power density were measured. The results showed that the maximum COD removal efficiency was 73.2 % for the substrate concentration of 2000 mg/L, which decreased to 72.6 % when the substrate concentration increased to 10000 mg/L. The maximum removal efficiency of nitrogen compounds was 83.4 % at COD 10000 mg/L and the initial ammonium concentration was 50 mg/L. The maximum voltage, current and power density in this phase were 391 mV, 460 mA/m2, 63/48 mW/m2, respectively. The results of the study showed that BES can be used as a suitable method to remove high amounts of ammonium in wastewater and organic materials and simultaneously produce electricity.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 23","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400432","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transition Metal (Co, Ni, Fe) Selenides by Selenization of Gallic Acid based MOFs used as Na-Ion Battery Anodes 没食子酸基mof硒化钠离子电池阳极过渡金属（Co, Ni, Fe）硒化物

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-10-23 DOI: 10.1002/celc.202400385

Meral Aydin, Thomas Devic, Ali Şems Ahsen, Nicolas Gautier, Rezan Demir-Cakan

{"title":"Transition Metal (Co, Ni, Fe) Selenides by Selenization of Gallic Acid based MOFs used as Na-Ion Battery Anodes","authors":"Meral Aydin, Thomas Devic, Ali Şems Ahsen, Nicolas Gautier, Rezan Demir-Cakan","doi":"10.1002/celc.202400385","DOIUrl":"https://doi.org/10.1002/celc.202400385","url":null,"abstract":"Sodium-ion batteries (NIBs) are gaining momentum, thanks to the increasing demand for energy storage devices and the abundant reserves and low sodium cost. Transition metals are well-established materials due to their high conductivity and electrochemical activity. In this work, metal selenides (MSex) (M: Ni, Co, Fe) are obtained by facile selenization in a single step of transition gallic acid based metal organic frameworks (MOFs) under Ar flow at 600 °C. As the powders undergo selenization, the resulting MSex particles are encapsulated within the amorphous carbon network formed by the decomposition of the gallate ligand. The microstructures are examined by HR-TEM analyses and the characteristic interplanar spacing of each transition metal selenide is measured and found to coincide with the XRD pattern. Meanwhile, the specific surface areas were measured as 121, 152, and 155 m2/g for CoSe2, NiSe and FeSe, respectively. The resulting NiSe/C, CoSe2/C and FeSe/C nanomaterials are tested as NIB negative electrodes and are shown to have a capacity of 315, 312, and 363 mAh/g, respectively, after 100 cycles at a current density of 100 mA/g while Na-ion diffusion coefficients (DNa+) are calculated in the range of 10−10–10−7 cm2/s by galvanostatic intermittent titration (GITT) technique.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 23","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400385","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Theoretical and Experimental Insights into Dendrite Growth in Lithium-Metal Electrode 锂金属电极枝晶生长的理论与实验研究

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-10-23 DOI: 10.1002/celc.202400441

Behnam Ghalami Choobar, Hamid Hamed, Saeed Yari, Mohammadhosein Safari

{"title":"Theoretical and Experimental Insights into Dendrite Growth in Lithium-Metal Electrode","authors":"Behnam Ghalami Choobar, Hamid Hamed, Saeed Yari, Mohammadhosein Safari","doi":"10.1002/celc.202400441","DOIUrl":"https://doi.org/10.1002/celc.202400441","url":null,"abstract":"A stable lithium-metal electrode can enable the shift from the Li-ion batteries to the next generation chemistries such as Li−S and Li−O2 with significant gains in the energy density and sustainability. This transition, however, is hindered by the dendrite formation, high chemical reactivity, and volume changes of the Li electrode. Although recent advancements in computational and experimental research have deepened our understanding of these issues, the primary obstacles to the commercialization of the lithium-metal batteries (LMBs) still persist. To address these challenges, a synergistic approach that combines computational and experimental strategies shows great promise. In this regard, this paper reviews the current experimental and theoretical understanding of the lithium-metal electrodes in view of the initiation and growth mechanisms of the lithium dendrites and interface instability. Leveraging the strengths of both approaches can offer a holistic insight into the LMB performance and guide the development of innovative designs for electrolytes and electrodes that can enhance the stability and performance of the LMBs.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 23","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400441","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic Processes at the Electrode-Electrolyte Interface: Implications for Lithium Deposition Stability 电极-电解质界面的动态过程：对锂沉积稳定性的影响

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-10-23 DOI: 10.1002/celc.202400222

Dr. Arghya Dutta

{"title":"Dynamic Processes at the Electrode-Electrolyte Interface: Implications for Lithium Deposition Stability","authors":"Dr. Arghya Dutta","doi":"10.1002/celc.202400222","DOIUrl":"https://doi.org/10.1002/celc.202400222","url":null,"abstract":"Lithium (Li) metal is a promising negative electrode material for high-energy-density rechargeable batteries, owing to its exceptional specific capacity, low electrochemical potential, and low density. However, challenges such as dendritic Li deposits, leading to internal short-circuits, and low Coulombic efficiency hinder the widespread adoption of lithium-metal batteries (LMBs). These issues stem from the morphological instability of Li deposition, influenced by dynamic processes at the electrolyte|Li interface. Understanding the interplay between electrolyte properties, interfacial kinetics, and Li deposition stability is crucial yet challenging due to their simultaneous occurrence and the complexity of the solid electrolyte interphase (SEI) layer. This review discusses three key dynamic processes influencing Li deposition: desolvation of Li+ ions, transport through the SEI, and electrochemical reduction. The effects of electrolyte properties on these processes and their interplay with electroplating stability are discussed, highlighting contradictions in the literature and proposing explanations for the discrepancies. Despite numerous reviews on SEI structure and composition effects, this article emphasizes the kinetic aspects at interfaces, aiming to provide clarity and direction for future research in achieving stable Li deposition in LMBs.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 23","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400222","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Progresses and Challenges to Determine Properties of Sulfonated Polyether Ether Ketone Based Electrolytes for Direct Methanol Fuel Cell Applications 直接甲醇燃料电池用磺化聚醚醚酮基电解质性能测定的最新进展与挑战

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-10-22 DOI: 10.1002/celc.202400345

Murat Tamer, Sema Akyalçın, Levent Akyalçın

{"title":"Recent Progresses and Challenges to Determine Properties of Sulfonated Polyether Ether Ketone Based Electrolytes for Direct Methanol Fuel Cell Applications","authors":"Murat Tamer, Sema Akyalçın, Levent Akyalçın","doi":"10.1002/celc.202400345","DOIUrl":"https://doi.org/10.1002/celc.202400345","url":null,"abstract":"This review focuses on fillers, modifications, and methods used in the preparation and development of sulfonated poly(ether ether ketone) (sPEEK) membranes, specifically for direct methanol fuel cell (DMFC) applications as proton exchange membranes in recent years. The primary objective is to evaluate recent advancements by emphasizing key characteristics such as water uptake and swelling capacity, ionic conductivity, methanol permeability, and single cell polarization tests. Additionally, the review aims to provide insights for future researchers by discussing the preparation processes of electrolytes. It presents basic characterizations of membrane electrolytes, including evaluations of the sulfonation degree and ion exchange capacities of sPEEK. High performance of membrane electrolytes is essential for commercialization and to compete with established membranes like Nafion®, which has a perfluorosulfonic acid structure. Therefore, the review also covers detailed characterization methods for assessing long-term stability when available in the related studies. Numerical results and indicators are categorized and tabulated for easy interpretation and comparative analysis.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 23","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400345","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Understanding the Relation Between Intrinsic Parameters of Substituents and Physical-Chemical Properties of NVP 取代基本征参数与NVP理化性质关系的认识

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-10-22 DOI: 10.1002/celc.202400451

S. Baiju, O. Guillon, P. Kaghazchi

{"title":"Understanding the Relation Between Intrinsic Parameters of Substituents and Physical-Chemical Properties of NVP","authors":"S. Baiju, O. Guillon, P. Kaghazchi","doi":"10.1002/celc.202400451","DOIUrl":"https://doi.org/10.1002/celc.202400451","url":null,"abstract":"NASICON-type Na3V2(PO4)3 (NVP) is regarded as an intriguing cathode material choice for sodium ion batteries (SIBs) due to its cycling stability and relatively high capacity. However, its voltage and electronic conductivity still need to be improved for larger-scale fast-charging applications (e.g. electric vehicles and mobile phones). In this work, we investigate the influence of Vanadium (V) substitution by other environmentally friendly, cheap, and/or high-valent transition metal (TM) elements on the electrochemical performance of NVP. Density functional theory calculation was used to study the volume change, voltage, conductivity, and redox mechanism during charge/discharge of different compositions. It is found that a substitution of 50% of V by Mn, Mo or W ions resulting in Na3VMn(PO4)3 (NVMnP), Na3VMo(PO4)3 (NVMoP), and Na3VW(PO4)3 (NVWP) significantly alters the cathode materials’ physical and chemical properties, notably decreasing the band gap. In particular, NVMnP has lesser than 1 eV theoretical band gap and provides a higher voltage, while NVWP a much lower voltage in comparison to NVP. This means that NVMnP and NVWP can be promising cathode and anode materials respectively. This work also establishes a relation between fundamental properties of substituents (i.e. ionization energy and ionic size) and the overall performance of NVP.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 23","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400451","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of SiO2 on the Performance of Cellulose/Poly(Vinylidene Fluoride) Films as Polymer Electrolytes for Lithium Ion Battery SiO2对用作锂离子电池聚合物电解质的纤维素/聚偏氟乙烯薄膜性能的影响

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-10-22 DOI: 10.1002/celc.202400420

Shirin Mohamadzade, Seyedeh-Arefeh Safavi-Mirmahalleh, Hossein Roghani-Mamaqani, Mehdi Salami-Kalajahi

{"title":"Effect of SiO2 on the Performance of Cellulose/Poly(Vinylidene Fluoride) Films as Polymer Electrolytes for Lithium Ion Battery","authors":"Shirin Mohamadzade, Seyedeh-Arefeh Safavi-Mirmahalleh, Hossein Roghani-Mamaqani, Mehdi Salami-Kalajahi","doi":"10.1002/celc.202400420","DOIUrl":"https://doi.org/10.1002/celc.202400420","url":null,"abstract":"Polymer electrolytes serve as highly efficient alternatives to liquid electrolytes, especially in terms of safety in lithium ion batteries. Among various polymers, Cellulose contains electron-donating atoms which can coordinate with lithium salts and be used as polymer electrolyte. Also, cellulose can be blended with other polymers to improve their properties. Polymer electrolytes suffer from poor mechanical properties. Adding nanoparticles not only surmounts the drawback of poor mechanical properties but also improves physical and electrochemical properties. In this study, different weight ratios of PVDF/cellulose blend films containing silicon dioxide (SiO2) are prepared via solution casting method. The results explored ionic conductivity in order of 10−4 S cm−1. In addition, high transfer numbers (0.74<t+<0.98), wide electrochemical window (up to 6 V), acceptable charge capacity, and long cycle stability are attained. In details, for 90/10 (wt./wt.) cellulose/PVDF, the ionic conductivity reached 4.4×10−⁴ S cm−1, and the ion transfer number was obtained 0.98. Additionally, the electrochemical stability window for these gel polymer electrolytes exceeded 5 V. The sample containing 90 % cellulose achieved an optimal charge capacity of 225.3, with 93.4 % capacity retention after 200 cycles at 0.2 C.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 23","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400420","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Uniform Conductive Carbon Coating of Nitrogen-Doped Carbon Improves the Electrochemical Performance of LiMn0.7Fe0.3PO4 Cathode Material for Lithium-ion Batteries 均匀的掺氮导电碳涂层提高了锂离子电池用 LiMn0.7Fe0.3PO4 阴极材料的电化学性能

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-10-21 DOI: 10.1002/celc.202400440

Hesen Xiong, Zongliang Zhang, Jiaxin Dai, Pei Zhao, Kai He, Jie Gao, Dr. Qiang Wu, Dr. Baofeng Wang

{"title":"A Uniform Conductive Carbon Coating of Nitrogen-Doped Carbon Improves the Electrochemical Performance of LiMn0.7Fe0.3PO4 Cathode Material for Lithium-ion Batteries","authors":"Hesen Xiong, Zongliang Zhang, Jiaxin Dai, Pei Zhao, Kai He, Jie Gao, Dr. Qiang Wu, Dr. Baofeng Wang","doi":"10.1002/celc.202400440","DOIUrl":"https://doi.org/10.1002/celc.202400440","url":null,"abstract":"The practical application of LiMn1−xFexPO4 as a cathode material is hindered considerably by its poor electronic conductivity and slow lithium-ion diffusion. In the present study, a uniform nitrogen-doped carbon coating on LiMn0.7Fe0.3PO4 (LiMn0.7Fe0.3PO4@NC) was achieved using ethylene diamine tetraacetic acid (EDTA) as a chelating agent and carbon source. The nitrogen-doped carbon layer enhanced the electronic conductivity and ionic diffusion of the LiMn0.7Fe0.3PO4 cathode. Furthermore, the uniform carbon layer prevented metal ion dissolution and stabilized the crystal structure. The resulting LiMn0.7Fe0.3PO4@NC-2 sample demonstrated superior performance with a specific capacity of 152.5 mAh g−1 at 0.1 C and preserved 93.7 % of this capacity over 200 cycles at 1 C. Meanwhile, the LiMn0.7Fe0.3PO4@NC-2 sample demonstrated a high Li+ diffusion coefficient (3.98×10−11 cm2 s−1) and electrical conductivity (1.47×10−2 S cm−1). This study presents a novel approach to designing high-performance cathode materials using a cost-effective and straightforward process.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 21","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400440","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elucidating the Performance Limitations of a 25 cm2 Pure-Water-Fed Non-Precious Metal Anion Exchange Membrane Electrolyzer Cell 阐明 25 平方厘米纯水非贵金属阴离子交换膜电解槽的性能限制

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-10-21 DOI: 10.1002/celc.202400334

Michelle Sophie Lemcke, Dr. Stefan Loos, Dr. Nadine Menzel, Prof. Dr. Michael Bron

{"title":"Elucidating the Performance Limitations of a 25 cm2 Pure-Water-Fed Non-Precious Metal Anion Exchange Membrane Electrolyzer Cell","authors":"Michelle Sophie Lemcke, Dr. Stefan Loos, Dr. Nadine Menzel, Prof. Dr. Michael Bron","doi":"10.1002/celc.202400334","DOIUrl":"https://doi.org/10.1002/celc.202400334","url":null,"abstract":"Anion exchange membrane (AEM) water electrolysis has emerged as a promising technology for producing hydrogen in a carbon-neutral economy. To advance its industrial application, performance evaluations of non-precious metal AEM electrolyzers with electrode areas of 25 cm2 were conducted. The focus was on pure water operation, achieving a current density of 0.26 A cm−2 at a voltage of 2.2 V. To gain a better understanding, the AEM electrolyzer was also operated in aqueous KOH, yielding 1.2 A cm−2 at 2.2 V. By adding a liquid electrolyte and by varying cell components, causes of the occurring performance limitations and ways to improve the AEM electrolyzer were identified. Electrochemical impedance analysis showed that the activation loss at the anode due to sluggish OER kinetics was the limiting factor at low current densities. At higher current densities, which is the operating range of interest for industrial application, the ohmic resistance from the membrane was the dominant factor limiting high performance in pure water operation.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 21","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400334","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Glass Microfiber Interlayer for Polysulfide Retention in Lithium-sulfur Cathodes 锂硫阴极中多硫化物保留的玻璃微纤维夹层

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-10-21 DOI: 10.1002/celc.202400480

Georgina Jahan, Saeme Motevalian, Dambar Hamal, Osama Awadallah, Ana Claus, Natalia Rodrigues de Oliveira, Meer Safa, Bilal El-Zahab

{"title":"Glass Microfiber Interlayer for Polysulfide Retention in Lithium-sulfur Cathodes","authors":"Georgina Jahan, Saeme Motevalian, Dambar Hamal, Osama Awadallah, Ana Claus, Natalia Rodrigues de Oliveira, Meer Safa, Bilal El-Zahab","doi":"10.1002/celc.202400480","DOIUrl":"https://doi.org/10.1002/celc.202400480","url":null,"abstract":"In this study, a glass microfibers interlayer (GMI) was used at the interface of the cathode and electrolyte in lithium-sulfur batteries to prevent polysulfides loss from the cathode which contributes to capacity and coulombic efficiency fades during cycling. The interlayer's performance was evaluated using full-cell studies and various visual experiments at commercially relevant sulfur areal loadings. Cells with sulfur loading of 4 mg cm−2 consistently had initial capacities exceeding 1200 mAh g−1 and reached a stable performance at around 900 mAh g−1 after 2 cycles at 2.23 mA cm−2. After 200 cycles the capacity retention remained robust at 95 %, marking an average decay rate of only 0.016 % per cycle. Cathodes with 2.8 mg cm−2 at 1.57 mA cm−2 rate and cathodes with 2 mg cm−2 at 3.3 mA cm−2 high rate exhibit improved rate capability and excellent stability over 400 cycles and 500 cycles respectively with 20 % more capacity retention than non-GMI cells. Post-failure analyses of the cell components revealed the GMI's role in controlling the concentration of soluble polysulfides at the anode and a suitable candidate that can be used alone or in tandem with other approaches to help overcome one of the major problems in lithium-sulfur batteries.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 23","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400480","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0