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Non-Aqueous Liquid Electrolytes for Li-O2 Batteries 锂氧电池用非水液体电解质
IF 5.1 4区 材料科学
Batteries & Supercaps Pub Date : 2024-10-12 DOI: 10.1002/batt.202400550
Shu Wang, Haohan Yu, Zerui Fu, Dapeng Liu, Yu Zhang
{"title":"Non-Aqueous Liquid Electrolytes for Li-O2 Batteries","authors":"Shu Wang,&nbsp;Haohan Yu,&nbsp;Zerui Fu,&nbsp;Dapeng Liu,&nbsp;Yu Zhang","doi":"10.1002/batt.202400550","DOIUrl":"https://doi.org/10.1002/batt.202400550","url":null,"abstract":"<p>Li-O<sub>2</sub> batteries (LOBs) have become a research hotspot of energy storage devices because of its high theoretical energy density. Practical applications require that non-aqueous LOBs can deliver stable and high reversible capacity, which heavily depends on the appropriate electrolyte system. Therefore, it is very important to select electrolytes that are hard to decompose and conducive to modulating the growth kinetics of discharge products. Herein, we will review the current progress and challenges of non-aqueous liquid electrolytes for LOBs by analyzing the influence factors on electrolyte stability and introducing the design and modification methods of electrolytes with different solvent types. At last, the possible research tactics have been proposed to develop advanced electrolytes for improving electrochemical performance of LOBs.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"8 4","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143826942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigating the Reduction of Fluoroethylene Carbonate and Vinylene Carbonate in Lithium-Ion Cells with Silicon-Graphite Anodes 硅-石墨阳极锂离子电池中氟碳酸乙烯和碳酸乙烯的还原研究
IF 5.1 4区 材料科学
Batteries & Supercaps Pub Date : 2024-10-10 DOI: 10.1002/batt.202400499
Richard Stockhausen, Lydia Gehrlein, Thomas Bergfeldt, Andreas Hofmann, Freya Janina Müller, Julia Maibach, Katarzyna Hofmann, Ronald Gordon, Anna Smith
{"title":"Investigating the Reduction of Fluoroethylene Carbonate and Vinylene Carbonate in Lithium-Ion Cells with Silicon-Graphite Anodes","authors":"Richard Stockhausen,&nbsp;Lydia Gehrlein,&nbsp;Thomas Bergfeldt,&nbsp;Andreas Hofmann,&nbsp;Freya Janina Müller,&nbsp;Julia Maibach,&nbsp;Katarzyna Hofmann,&nbsp;Ronald Gordon,&nbsp;Anna Smith","doi":"10.1002/batt.202400499","DOIUrl":"https://doi.org/10.1002/batt.202400499","url":null,"abstract":"<p>The electrolyte additives fluoroethylene carbonate (FEC) and vinylene carbonate (VC) improve the lifetime of lithium-ion batteries with silicon-containing anodes by their reduction yielding a more stable solid electrolyte interphase (SEI). However, the reductive decomposition mechanism of FEC and VC has not yet been fully clarified. For this purpose, we investigate the electrolyte decomposition in LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> (NCM622)/silicon-graphite pouch cells containing either 1 M LiPF<sub>6</sub> in FEC:dimethyl carbonate (DMC) or 1 M LiPF<sub>6</sub> in VC:DMC using high-performance liquid chromatography, gas chromatography, X-ray photoelectron spectroscopy, and inductively coupled plasma optical emission spectrometry. Based on the molar consumptions of FEC and VC, and the cumulative irreversible capacities, we show that three electrons are consumed for every reduced FEC molecule, and that one electron is consumed for every reduced VC molecule. Based on the results, reactions of the FEC reduction are proposed yielding LiF, Li<sub>2</sub>CO<sub>3</sub>, Li<sub>2</sub>C<sub>2</sub>O<sub>4</sub>, HCO<sub>2</sub>Li, and a PEO-type polymer. Furthermore, the reaction of the VC reduction is proposed yielding lithium-containing, polymerized VC. During formation, the capacity loss of the cells is induced by lithium trapping in Li<sub>x</sub>Si<sub>y</sub>/Li<sub>x</sub>SiO<sub>y</sub> under the SEI and by lithium trapping in the SEI. During subsequent cycling, only lithium trapping in the SEI triggers the capacity loss.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"8 4","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/batt.202400499","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143827069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of Tailored Hydrocarbon-Based Pentablock Copolymer Membranes for Sodium-Polysulfide Flow Batteries 钠-聚硫液流电池专用烃基五嵌段共聚物膜的研制
IF 5.1 4区 材料科学
Batteries & Supercaps Pub Date : 2024-10-10 DOI: 10.1002/batt.202400401
Michelle Lehmann, Tomonori Saito, Mohamed Kamaludeen, Guang Yang
{"title":"Development of Tailored Hydrocarbon-Based Pentablock Copolymer Membranes for Sodium-Polysulfide Flow Batteries","authors":"Michelle Lehmann,&nbsp;Tomonori Saito,&nbsp;Mohamed Kamaludeen,&nbsp;Guang Yang","doi":"10.1002/batt.202400401","DOIUrl":"https://doi.org/10.1002/batt.202400401","url":null,"abstract":"<p>Long-duration energy storage (LDES) technologies are pivotal for the adoption of renewables like wind and solar. Non-aqueous redox flow batteries (NARFBs) with a sodium-polysulfide hybrid system feature high energy density independent of power density, yet face challenges with polysulfide shuttling. This study investigates a hydrocarbon-based penta-block copolymer membrane, Nexar, to mitigate crossover effects by balancing TFSI conversion and their crosslink density. The membranes are annealed to induce crosslinking for reducing electrolyte uptake and enhancing mechanical stability while demonstrating excellent ionic conductivity. The hydrocarbon-based membranes address environmental concerns associated with perfluoroalkyl substances and improve the performance and durability of NARFBs. Our findings suggest that annealed Nexar membranes with tailored TFSI functionality offer a scalable, cost-effective solution for enhancing the efficiency of high-capacity energy storage systems, pivotal for grid integration of renewable sources.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"8 2","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Constructing High-Performance Zn-Iodine Batteries with CuI-PVP Composite Layer Coated Zn Anodes CuI-PVP复合镀层锌阳极制备高性能锌碘电池
IF 5.1 4区 材料科学
Batteries & Supercaps Pub Date : 2024-10-10 DOI: 10.1002/batt.202400427
Rui Zhang, Xiangyu Liu, Xiaojing Wu, Tan Guo, Shan Yun, Lingyu Du, Litao Kang
{"title":"Constructing High-Performance Zn-Iodine Batteries with CuI-PVP Composite Layer Coated Zn Anodes","authors":"Rui Zhang,&nbsp;Xiangyu Liu,&nbsp;Xiaojing Wu,&nbsp;Tan Guo,&nbsp;Shan Yun,&nbsp;Lingyu Du,&nbsp;Litao Kang","doi":"10.1002/batt.202400427","DOIUrl":"https://doi.org/10.1002/batt.202400427","url":null,"abstract":"<p>Aqueous zinc-iodine (Zn-I<sub>2</sub>) batteries featuring abundant raw materials, inherent safety, excellent cost competitiveness and environmental benignity have been identified as one kind of important electrochemical energy storage devices. However, these batteries always suffer from inferior electrochemical performance, because of dendrite growth and corrosion/passivation of the anodes. Herein, a copper iodide-polyvinylpyrrolidone (CuI-PVP) composite layer is proposed to suppress the parasitic reactions and protect the Zn anodes. In this layer, the CuI can spontaneously react with metallic Zn and convert into Cu and Cu<sub>5</sub>Zn<sub>8</sub> (2<i>CuI</i>+<i>Zn</i>→2<i>Cu</i>+<i>ZnI<sub>2</sub></i>; 5<i>Cu</i>+8<i>Zn</i>→<i>Cu<sub>5</sub>Zn<sub>8</sub></i>). The highly zincophilic Cu and Cu<sub>5</sub>Zn<sub>8</sub>, as heterogeneous seeds, can guide the uniform Zn nucleation and deposition, while alleviating corrosion of the Zn anodes. At the same time, the iodide species releasing from the composite layer can be oxidized and deposited on the cathodes, contributing additional capacity. As a result, the symmetric cell prepared with the CuI-PVP@Zn anodes demonstrates a long cycling lifetime of 1400 hours at 1 mA cm<sup>−2</sup> and 1 mAh cm<sup>−2</sup>. Under an even higher current density of 5 mA cm<sup>−2</sup>, the CuI-PVP@Zn cell can still stably work for more than 660 hours. The practical application of this CuI-PVP@Zn electrode has been further demonstrated in Zn-I<sub>2</sub> full batteries, which achieve 60 % higher specific capacity than the untreated ones (251.4 vs. 157.1 mAh g<sup>−1</sup> after 2800 cycles).</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"8 2","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Regulating and Unraveling Electrochemical Behavior of Hierarchically-Densifying Mesoporous Apocynum Carbon for High performance Supercapacitor 调控并揭示用于高性能超级电容器的分层致密化介孔狎鱼碳的电化学行为
IF 5.1 4区 材料科学
Batteries & Supercaps Pub Date : 2024-10-10 DOI: 10.1002/batt.202400450
Qijun Tong, Zhihao Zhang, Qitian Luo, Kai Gu, Weiqing Yang
{"title":"Regulating and Unraveling Electrochemical Behavior of Hierarchically-Densifying Mesoporous Apocynum Carbon for High performance Supercapacitor","authors":"Qijun Tong,&nbsp;Zhihao Zhang,&nbsp;Qitian Luo,&nbsp;Kai Gu,&nbsp;Weiqing Yang","doi":"10.1002/batt.202400450","DOIUrl":"https://doi.org/10.1002/batt.202400450","url":null,"abstract":"<p>The commercial carbon-based supercapacitor with high power ability (~5 kW kg<sup>−1</sup>) is still unable to fulfill the superhigh power requirement of specific power-type equipments (&gt;20 kW kg<sup>−1</sup>), such as rail transit facilities, electromagnetic and laser equipment. To unravel the structure-activity relationship and electrochemical behavior of power-type densifying carbon is a key to overcome the contradiction of the suitable mesoporous ratio and highly-densifying features toward the superhigh power requirement. Here, we built the hierarchically-densifying mesoporous apocynum carbon (HDMC) with optimized mesoporous ratio by hierarchical activation method. More importantly, both the isothermal desorption/adsorption and high-pressure mercury intrusion porosimetry methods were employed to synergistically uncover the microscopic surface carbon network stacking mechanism and the macroscopic carbon skeleton densification assembly mechanism. The highly-densifying skeleton features and high mesoporous ratio properties were proved to be co-existed in HDMC, which is in favour of rapidly ion/electron transferring toward electrochemically-improving power behavior of HDMC. A combination of high tap density (0.387 g cm<sup>−3</sup>) and ideal microporous-mesoporous system (23.1 % proportion of mesoporous) have taken this HDMC to provide a super-high power density (33.5 kW kg<sup>−1</sup>) and a high volume power density (9.37 kW L<sup>−1</sup>) for HDMC-based supercapacitor, more than those of commercial YP-50F (14.9 kW kg<sup>−1</sup> @ 4.63 kW L<sup>−1</sup>). Therefore, this work provides a synergistic strategy to incorporate the properties of mesoporous and densifying, and reveals its electrochemical behavior toward the further application of power-type supercapacitors.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"8 3","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of Noninvasive Imaging Techniques for High Energy Density Lithium Metal Rechargeable Batteries 高能量密度锂金属可充电电池无创成像技术的应用
IF 5.1 4区 材料科学
Batteries & Supercaps Pub Date : 2024-10-09 DOI: 10.1002/batt.202400504
Arghya Dutta, Shoichi Matsuda
{"title":"Application of Noninvasive Imaging Techniques for High Energy Density Lithium Metal Rechargeable Batteries","authors":"Arghya Dutta,&nbsp;Shoichi Matsuda","doi":"10.1002/batt.202400504","DOIUrl":"https://doi.org/10.1002/batt.202400504","url":null,"abstract":"<p>Lithium metal batteries (LMBs) have the potential to exceed the energy density of current lithium-ion batteries. Achieving this requires a thick positive electrode, a thin Li metal negative electrode, and minimal electrolyte-loading. Despite their promise, high energy density LMBs with high-loading positive electrodes, thin Li, and low electrolytes face significant challenges. A key issue is the high reactivity of Li metal with nonaqueous electrolytes, leading to the consumption of both during each cycle. This reaction causes insulating Li compounds to accumulate, increases electrode porosity and thickness, depletes the electrolyte, raises cell impedance, and reduces capacity. Therefore, understanding the interphase evolution of the Li metal electrode is crucial to addressing cell failure. While various ex situ and in situ techniques have been used to study these interphases, they often involve non-practical cell configurations and sample-damaging preparation processes. In this regard, noninvasive methods like X-ray and neutron-based imaging are beneficial as they do not damage samples, can be used both in situ and ex situ, employ practical cell configurations, and enable long-term data collection. This review explores recent advancements in X-ray and neutron-based techniques for characterizing high-energy LMBs, emphasizing their potential to improve understanding of interphasial dynamics and advance robust high-energy-density batteries.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"8 4","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/batt.202400504","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143827004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Model-Driven Manufacturing of High-Energy-Density Batteries: A Review 高能量密度电池模型驱动制造研究进展
IF 5.1 4区 材料科学
Batteries & Supercaps Pub Date : 2024-10-09 DOI: 10.1002/batt.202400539
Daria Maksimovna Vakhrusheva, Jun Xu
{"title":"Model-Driven Manufacturing of High-Energy-Density Batteries: A Review","authors":"Daria Maksimovna Vakhrusheva,&nbsp;Jun Xu","doi":"10.1002/batt.202400539","DOIUrl":"https://doi.org/10.1002/batt.202400539","url":null,"abstract":"<p>The rapid advancement in energy storage technologies, particularly high-energy density batteries, is pivotal for diverse applications ranging from portable electronics to electric vehicles and grid storage. This review paper provides a comprehensive analysis of the recent progress in model-driven manufacturing approaches for high-energy-density batteries, highlighting the integration of computational models and simulations with experimental manufacturing processes to optimize performance, reliability, safety, and cost-effectiveness. We systematically examine various modeling techniques, including electrochemical, thermal, and mechanical models, and their roles in elucidating the complex interplay of materials, design, and manufacturing parameters. The review also discusses the challenges and opportunities in scaling up these model-driven approaches, addressing key issues such as model validation, parameter sensitivity, and the integration of machine learning and artificial intelligence for predictive modeling, process optimization, and quality assurance. By synthesizing current research findings and industry practices, this paper aims to outline a roadmap for future developments in model-driven manufacturing of high-energy density batteries, emphasizing the need for interdisciplinary collaboration and innovation to meet the increasing demands for energy storage solutions.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"8 4","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143827003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of Electrolyte Salts in Non-Flammable Triethyl Phosphate for Sodium-Ion Batteries 钠离子电池用不可燃磷酸三乙酯电解质盐的研究
IF 5.1 4区 材料科学
Batteries & Supercaps Pub Date : 2024-10-08 DOI: 10.1002/batt.202400489
Wessel W. A. Van Ekeren, Lasse Dettmann, Yonas Tesfamhret, Andrew J. Naylor, Reza Younesi
{"title":"Investigation of Electrolyte Salts in Non-Flammable Triethyl Phosphate for Sodium-Ion Batteries","authors":"Wessel W. A. Van Ekeren,&nbsp;Lasse Dettmann,&nbsp;Yonas Tesfamhret,&nbsp;Andrew J. Naylor,&nbsp;Reza Younesi","doi":"10.1002/batt.202400489","DOIUrl":"https://doi.org/10.1002/batt.202400489","url":null,"abstract":"<p>Five different electrolyte salts, namely NaBF<sub>4</sub>, NaClO<sub>4</sub>, NaDFOB, NaFSI and NaPF<sub>6</sub>, were evaluated in non-flammable triethyl phosphate (TEP) based electrolyte solutions in sodium-ion full-cells using high-mass loading Prussian white and hard carbon electrodes. Their impact on the viscosity, ionic conductivity and solvation structure was analyzed, revealing that NaFSI-based electrolytes exhibited a stronger interaction with TEP and less ion-pairing than the other salts, resulting in the highest ionic conductivity at a concentration of 0.8 <i>m</i> (mol/kg). Galvanostatic cycling experiments showed that none of the electrolyte salts dissolved in TEP forms an efficient passivation layer. However, adding 1 wt.% vinylene carbonate (VC) significantly improved cycling performance for the cells with NaBF<sub>4</sub>, NaDFOB or NaFSI, but not with NaClO<sub>4</sub> or NaPF<sub>6</sub>. Additionally, NaFSI in TEP with 1 wt.% VC electrolyte solution showed minimal gas evolution during the formation cycling (&lt;8 mbar). In a 1 Ah multilayer pouch cell, 0.8 <i>m</i> NaFSI in TEP with 1 wt.% VC showed promising results with 88 % capacity retention after 200 cycles. X-ray photoelectron spectroscopy analysis indicated that the addition of VC results in the formation of a thin SEI and minimized TEP decomposition, particularly for 0.8 m NaFSI TEP with 1 wt.% VC. This study lays the groundwork for safer liquid electrolytes and integrating them into near-to-commercial cell setups.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"8 3","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/batt.202400489","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
One-Step Electrodeposition of Iron Oxyhydroxide Onto 3D Porous Graphene Substrates for on Chip Asymmetric Micro-Supercapacitors 片上非对称微型超级电容器在三维多孔石墨烯基板上一步电沉积氧化铁
IF 5.1 4区 材料科学
Batteries & Supercaps Pub Date : 2024-10-08 DOI: 10.1002/batt.202400431
Filipe Braga, Gabriel Casano, Manel Sonni, Harry Finch, Vinod R. Dhanak, Marco Caffio, Laurence J. Hardwick
{"title":"One-Step Electrodeposition of Iron Oxyhydroxide Onto 3D Porous Graphene Substrates for on Chip Asymmetric Micro-Supercapacitors","authors":"Filipe Braga,&nbsp;Gabriel Casano,&nbsp;Manel Sonni,&nbsp;Harry Finch,&nbsp;Vinod R. Dhanak,&nbsp;Marco Caffio,&nbsp;Laurence J. Hardwick","doi":"10.1002/batt.202400431","DOIUrl":"https://doi.org/10.1002/batt.202400431","url":null,"abstract":"<p>Electrochemical capacitors based on redox active materials can achieve greater capacitance values than traditional electric double layer composites. Herein, electrodeposition of iron oxyhydroxide from a mildly acidic acetate precursor is reported. The one-step deposition resulted in a submicron film composed of FeOOH phase, which was confirmed via Raman and x-ray photoelectron spectroscopy. The capacitance increased linearly with loading amount and achieved a maximum at 1600 mC deposition with 120 mF cm<sup>−2</sup> at 25 mV s<sup>−1</sup> after which the film became more resistive, limiting electrolyte access to the porous graphene substrate. The deposited FeOOH demonstrated promising rate capability and good cycling stability, without phase changes, retaining 82 % of the initial capacitance after 5000 consecutive charge/discharge cycles. The charge storage mechanism of FeOOH was determined via <i>in situ</i> Raman spectroscopy, which followed reversible iron oxygen vibration changes upon cycling which become more intense upon reduction as a result of sodium ion intercalation. Furthermore, an asymmetric configuration full cell combining FeOOH/MnO<sub>2</sub> allowed the working voltage to be extended to 2 V, maintaining an ideal capacitor behaviour, and achieving a maximum energy and power density of 21 μWh cm<sup>−2</sup> and 2.5 mW cm<sup>−2</sup> respectively.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"8 3","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/batt.202400431","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of Temperature and Pressure on the Wetting Progress in 21700 Lithium-Ion Battery Cells: Experiment, Model, and Lattice Boltzmann Simulation 温度和压力对21700锂离子电池润湿过程的影响:实验、模型和晶格玻尔兹曼模拟
IF 5.1 4区 材料科学
Batteries & Supercaps Pub Date : 2024-10-08 DOI: 10.1002/batt.202400531
Johannes Wanner, Matthias Burgard, Nabih Othman, Soumya Singh, Prof. Dr. Kai Peter Birke
{"title":"Influence of Temperature and Pressure on the Wetting Progress in 21700 Lithium-Ion Battery Cells: Experiment, Model, and Lattice Boltzmann Simulation","authors":"Johannes Wanner,&nbsp;Matthias Burgard,&nbsp;Nabih Othman,&nbsp;Soumya Singh,&nbsp;Prof. Dr. Kai Peter Birke","doi":"10.1002/batt.202400531","DOIUrl":"https://doi.org/10.1002/batt.202400531","url":null,"abstract":"<p>The electrolyte filling and subsequent wetting of the active material is a time-critical process in the manufacturing of lithium-ion batteries. Due to the metallic cell housing, the process phenomena are insufficiently accessible, preventing the replication of the wetting processes by mathematical or simulative methods and hindering efforts to accelerate the wetting process. Therefore, this publication employs a glass cell housing for electrolyte filling of a 21700 cylindrical cell to investigate the wetting at different temperatures and process pressures. In parallel, a mathematical replication of the wetting, as well as a lattice Boltzmann pore-scale simulation, is used to evaluate the influence of these varying process boundary conditions. The results show a strong temperature dependence on electrolyte wetting and the positive effect of pressure changes in the wetting process. These findings are particularly relevant to the process design of large-scale cylindrical cell manufacturing.</p>","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"8 4","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/batt.202400531","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143826726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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