Solid State Ionics最新文献

筛选
英文 中文
Fluoride-ion conductivity of scheelite-type LiYb1-xMxF4±x (M = Mg, Ca, Sr, Hf)
IF 3 4区 材料科学
Solid State Ionics Pub Date : 2025-04-02 DOI: 10.1016/j.ssi.2025.116851
Kota Onuki , Naoki Matsui , Kota Suzuki , Masaaki Hirayama , Ryoji Kanno
{"title":"Fluoride-ion conductivity of scheelite-type LiYb1-xMxF4±x (M = Mg, Ca, Sr, Hf)","authors":"Kota Onuki ,&nbsp;Naoki Matsui ,&nbsp;Kota Suzuki ,&nbsp;Masaaki Hirayama ,&nbsp;Ryoji Kanno","doi":"10.1016/j.ssi.2025.116851","DOIUrl":"10.1016/j.ssi.2025.116851","url":null,"abstract":"<div><div>Fluorite-type fluoride-ion conductors have been widely studied, whereas fluorite-derivative structures remain untapped material spaces as fluoride-ion conductors. In this study, fluoride-ion conductivities in scheelite-type LiYb<sub>1-<em>x</em></sub><em>M</em><sub><em>x</em></sub>F<sub>4±<em>x</em></sub> (<em>M</em> = Mg, Ca, Sr, and Hf) solid solutions were investigated. Introduction of fluorine-vacancy through aliovalent cation-substitution significantly enhanced ionic conductivity, with 15 % Ca<sup>2+</sup> substitution for Yb<sup>3+</sup> exhibiting a maximum conductivity of 1.7 × 10<sup>−5</sup> S cm<sup>−1</sup> at 473 K. Structural analysis confirmed the formation of F vacancies, whereas bond valence energy landscape calculations revealed low-barrier conduction pathways. Furthermore, molecular dynamics simulations revealed distinct fluoride migration pathway near the Ca<sup>2+</sup>-doped and undoped regions. These findings offer new insights into the fluoride-ion conduction mechanisms in fluorite-related structures.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"424 ","pages":"Article 116851"},"PeriodicalIF":3.0,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143748040","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
Solvent reconstruction and interfacial fluorination strategy for high-performance polyether lithium metal batteries
IF 3 4区 材料科学
Solid State Ionics Pub Date : 2025-03-25 DOI: 10.1016/j.ssi.2025.116849
Haofeng Peng, Zixuan Fang, Ming Zhang, Mengqiang Wu
{"title":"Solvent reconstruction and interfacial fluorination strategy for high-performance polyether lithium metal batteries","authors":"Haofeng Peng,&nbsp;Zixuan Fang,&nbsp;Ming Zhang,&nbsp;Mengqiang Wu","doi":"10.1016/j.ssi.2025.116849","DOIUrl":"10.1016/j.ssi.2025.116849","url":null,"abstract":"<div><div>Lithium metal batteries based on in situ semi-solid-state polyether electrolytes have emerged as a focal point of contemporary research due to their straightforward fabrication process, high energy density, and reliable safety. The DOL monomers exhibit characteristics of low viscosity and polymerization initiated by lithium salts at room temperature, presenting a significant commercial potential for the preparation of PDOL semi-solid-state electrolytes via in situ ring-opening polymerization for high-performance lithium metal batteries. However, the intrinsic performance deficiencies and poor antioxidant properties of polyether electrolytes have severely impeded their practical application. The utilization of 1,1,2,2-tetrafluoroethyl 2,2,3,3-tetrafluoropropyl ether (TTE) as a diluent and fluoroethylene carbonate (FEC) as an additive for solvent reconstruction and interfacial fluorination of the semi-solid-state polyether electrolytes has effectively mitigated these issues. Density functional theory and molecular dynamics simulations demonstrate that the TTE diluent can optimize the solvent structure and enhance anionic coordination, thereby improving the electrochemical performance of PDOL-based electrolytes, which enables stable cycling of Li/Li symmetric batteries for over 2000 h at 0.1 mA cm <sup>−</sup> <sup>2</sup>. Furthermore, the introduction of the fluorinated additive FEC has achieved exceptional performance in Li/NCM811 high-voltage lithium metal batteries, with an initial discharge specific capacity of 206.3 mAh g<sup>−1</sup> at 0.1C and stable charge-discharge cycling at 0.3C.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"423 ","pages":"Article 116849"},"PeriodicalIF":3.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695911","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
Economical, ecofriendly and easy to handle polymer-in-salt-electrolyte
IF 3 4区 材料科学
Solid State Ionics Pub Date : 2025-03-25 DOI: 10.1016/j.ssi.2025.116848
Dipti Yadav, Kanak Aggarwal, Neelam Srivastava
{"title":"Economical, ecofriendly and easy to handle polymer-in-salt-electrolyte","authors":"Dipti Yadav,&nbsp;Kanak Aggarwal,&nbsp;Neelam Srivastava","doi":"10.1016/j.ssi.2025.116848","DOIUrl":"10.1016/j.ssi.2025.116848","url":null,"abstract":"<div><div>Polymer-In-Salt-Electrolytes (PISEs) are an emerging branch of polymer electrolytes which are supposed to address the shortcomings (slow ion movement due to polymer coupled motion and small cationic transference number) of Salt-In-Polymer-Electrolytes (SIPEs), but a PISE, which may be commercially used for fabrication of energy device is still a dream because of recrystallization and brittle matrix at higher salt concentration. Our group has developed a simple solution casting protocol for synthesis of an economical, eco-friendly and easy to handle PISEs from crosslinked starches, where there is no need of getting the molten state salt/salt-mixture. The thought process behind this protocol and selection of starch as host polymer is that the salt breaks the starch into smaller molecules resulting in generation new –OH and –H to interact with salt, i.e. increasing salt concentration itself creates a favorable atmosphere for its acceptance. Starch is hydrophilic in nature and presence of large amount of salt adds up to it, and such materials have moisture content varying from ∼5 % to 25 %, depending to salt and starch combination and concentration, which is a favorable property leading the synthesized PISEs to behave as Water-In-Polymer-Salt-Electrolytes (WiPSEs). By exposing the freshly synthesized samples to high humidity these materials were stabilized with respect to ambient humidity changes. These materials lead to ESR &lt;10 Ω (reaching to as low as &lt;1 Ω), wide electrochemical stability window (ESW &gt; 2.5 V) and ion relaxation time is of the order of μSec. The supercapacitor fabricated using synthesized PISEs with commonly available supercapacitor electrodes have behavior at par with other electrolytes reported in the literature. With lab-synthesized activated carbons, a capacity of ∼125 F/g has been obtained with columbic efficiency &gt;98 %. Since the synthesis protocol and chemicals used are economical, the starch-based PISEs are economical and also environment benign, because starch is a renewable polymer and the process uses only one extra chemical (methanol as solvent). The material is flexible and can be molded in the desired shape and size and hence is a potential candidate to reach at the commercial level, if explored in detail.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"423 ","pages":"Article 116848"},"PeriodicalIF":3.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704090","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
Exploring structural, optical, dielectric and electrical attributes of a La based complex perovskite
IF 3 4区 材料科学
Solid State Ionics Pub Date : 2025-03-19 DOI: 10.1016/j.ssi.2025.116840
Lipsa Priyadarshini , L. Biswal , Sujata Rout , Karubaki Moharana , Amit Kumar Parida , R.N.P. Choudhary , Santosh Kumar Satpathy
{"title":"Exploring structural, optical, dielectric and electrical attributes of a La based complex perovskite","authors":"Lipsa Priyadarshini ,&nbsp;L. Biswal ,&nbsp;Sujata Rout ,&nbsp;Karubaki Moharana ,&nbsp;Amit Kumar Parida ,&nbsp;R.N.P. Choudhary ,&nbsp;Santosh Kumar Satpathy","doi":"10.1016/j.ssi.2025.116840","DOIUrl":"10.1016/j.ssi.2025.116840","url":null,"abstract":"<div><div>A rare-earth based novel compound with a disordered perovskite structure has been synthesised using the conventional solid-state reaction approach. The structural phase of the compound is analysed using room temperature X-ray diffraction (XRD) data. The refinement of XRD data suggested formation of compound in trigonal phase with R-3c symmetry. Position of peaks in Raman spectra obtained at room temperature further support the proposition of above structure and symmetry of formation. Using scanning electron microscope (SEM) images, the microstructure of the compound and the surface morphology is revealed. EDX analysis presented semi-quantitative information on distribution and weight percentage of elements present, from which the synthesis of the expected compound is substantiated. Examination of optical characteristics via UV–Visible absorption spectroscopy revealed a band gap of 3.2 eV suggesting possible potential applications in optoelectronic and photovoltaic devices. The electric polarisation and relaxation phenomena prevailing in the material as a function of frequency and temperature are extensively studied using data acquired via complex impedance spectroscopy (CIS) technique. A temperature and frequency stable dielectric response in high frequency region recommends use of compound for application at high frequency and temperature. Dominating bulk contribution to overall electrical response and negative temperature coefficient of resistance (NTCR) behaviour is observed. The frequency-dependent ac conductivity data adheres to Jonscher's power law. To estimate the activation energy, which facilitates the identification of the specific charges involved in the ac conduction process, the temperature-dependant ac conductivity data is utilised.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"423 ","pages":"Article 116840"},"PeriodicalIF":3.0,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683756","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
Atomistic insights into the carbonation behavior of olivine minerals: Role of metal cation composition
IF 3 4区 材料科学
Solid State Ionics Pub Date : 2025-03-19 DOI: 10.1016/j.ssi.2025.116845
Saisai Zhang, Xinyu Zhang, Li Zhang, Donglin Li, Xuemao Guan, Jianping Zhu, Songhui Liu
{"title":"Atomistic insights into the carbonation behavior of olivine minerals: Role of metal cation composition","authors":"Saisai Zhang,&nbsp;Xinyu Zhang,&nbsp;Li Zhang,&nbsp;Donglin Li,&nbsp;Xuemao Guan,&nbsp;Jianping Zhu,&nbsp;Songhui Liu","doi":"10.1016/j.ssi.2025.116845","DOIUrl":"10.1016/j.ssi.2025.116845","url":null,"abstract":"<div><div>Olivine minerals possess significant potential for CO<sub>2</sub> sequestration through carbonation reactions, with their reactivity highly influenced by cation composition. This study employs first-principles calculations to systematically investigate the impact of metal cations (Mg<sup>2+</sup>, Ca<sup>2+</sup>, Mn<sup>2+</sup>, Fe<sup>2+</sup>, Co<sup>2+</sup>) on the carbonation behavior of five olivine structures: forsterite (Mg<sub>2</sub>SiO<sub>4</sub>), calcio-olivine (γ-Ca<sub>2</sub>SiO<sub>4</sub>), tephroite (α-Mn<sub>2</sub>SiO<sub>4</sub>), fayalite (α-Fe<sub>2</sub>SiO<sub>4</sub>), and Co-olivine. Analyses of bond characteristics, total bond order density, and local density of states reveal fundamental differences between alkaline earth and transition metal olivines. We have found that in alkaline earth (AE) olivines, carbonation primarily involves an electrophilic attack of O<sup>2−</sup> by H<sup>+</sup> and a nucleophilic attack of metal cations by HCO<sub>3</sub><sup>−</sup>/CO<sub>3</sub><sup>2−</sup> species. Calcio-olivine exhibits higher reactivity than forsterite due to enhanced Ca<sup>2+</sup> nucleophilicity. Conversely, transition metal (TM) olivine reactivity is governed by the multivalent cations, contributing significantly to both electrophilic and nucleophilic pathways. Considering both mineral reserves and carbonation reaction mechanisms, calcio-olivine is determined to be the most advantageous among the five olivine minerals in terms of carbonation reactivity. This atomic-scale understanding guides the development of olivine-based materials with improved carbonation performance for efficient CO<sub>2</sub> sequestration and utilization in carbon capture, utilization, and storage technologies.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"423 ","pages":"Article 116845"},"PeriodicalIF":3.0,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642962","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
Distinct influence of Cd in the electrocatalyst of Ni-Co-Cd/CNFs nanoparticles as a catalyst in direct alcohol fuel cells (DAFCs)
IF 3 4区 材料科学
Solid State Ionics Pub Date : 2025-03-19 DOI: 10.1016/j.ssi.2025.116846
Al-Anood M. Al-Dies , Somia Awad
{"title":"Distinct influence of Cd in the electrocatalyst of Ni-Co-Cd/CNFs nanoparticles as a catalyst in direct alcohol fuel cells (DAFCs)","authors":"Al-Anood M. Al-Dies ,&nbsp;Somia Awad","doi":"10.1016/j.ssi.2025.116846","DOIUrl":"10.1016/j.ssi.2025.116846","url":null,"abstract":"<div><div>Different percentages of less expensive metal alloy-decorated nanofiber catalysts have been successfully manufactured using the electrospinning method to replace platinum in direct alcohol fuel cells (DAFC). The synthesis and characterization of catalysts, namely Ni-Co-Cd/CNFs, with a metal fixed ratio of 20 % wt. for DAFC applications are the main goals of this work. Two different catalyst concentrations were prepared with fixed nickel concentrations (Ni<sub>12</sub>Co<sub>6</sub>Cd<sub>2</sub> &amp; Ni<sub>12</sub>Co<sub>4</sub>Cd<sub>4</sub>). This research represents the first preparation of ternary Ni-Co-Cd/CNF for DAFC applications. Various methods, including electrochemical tests, transmission electron microscopy, scanning electron microscopy, and x-ray diffraction, are used to characterize the catalysts. Scanning electron microscopy (SEM) revealed that the fabricated sample exhibited a good nanofiber form and a distinct nanoparticle look. The samples' capacity for alcohol electrocatalysis was assessed using cyclic voltammetry, impedance spectroscopy, chronoamperometry, scan rate, and response time. The oxidation peak current density and electrode stability both rise when the concentration of Cd in Ni-Co-Cd/CNF increases. The oxidation peak current density of Ni<sub>12</sub>Co<sub>4</sub>Cd<sub>4</sub> at the optimum ethanol concentration (1 M ethanol in 1 M KOH) is found to be 29.7 mA/cm<sup>2</sup>. While the maximum current density is found to equal 38.86 mA/cm<sup>2</sup>. In addition, the CV results yield the oxidation peak current density to be 3.5 mA/cm<sup>2</sup> at the optimum methanol concentration (1 M methanol in 1 M KOH). Ni<sub>12</sub>Co<sub>4</sub>Cd<sub>4</sub> exhibits promoted electrochemical properties to ethanol electrooxidation rather than methanol oxidation. Furthermore, these findings are enhanced by the highly calculated diffusion coefficient of Ni<sub>12</sub>Co<sub>4</sub>Cd<sub>4</sub> towards ethanol in comparison with methanol (2.30 × 10<sup>−6</sup> cm<sup>2</sup>/s for ethanol and 3.07 × 10<sup>−7</sup> cm<sup>2</sup>/s for methanol). This work has demonstrated how to use a unique technique to develop an efficient alcohol electrooxidation catalyst based on nickel, cobalt, and cadmium nanoparticles.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"423 ","pages":"Article 116846"},"PeriodicalIF":3.0,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642963","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
Structural transformations and proton conductivity of Me4NHSO4 and nanocomposites Me4NHSO4 - SiO2
IF 3 4区 材料科学
Solid State Ionics Pub Date : 2025-03-17 DOI: 10.1016/j.ssi.2025.116810
V.G. Ponomareva, I.N. Bagryantseva, E.S. Shutova, T.N. Drebushchak, N.F. Uvarov
{"title":"Structural transformations and proton conductivity of Me4NHSO4 and nanocomposites Me4NHSO4 - SiO2","authors":"V.G. Ponomareva,&nbsp;I.N. Bagryantseva,&nbsp;E.S. Shutova,&nbsp;T.N. Drebushchak,&nbsp;N.F. Uvarov","doi":"10.1016/j.ssi.2025.116810","DOIUrl":"10.1016/j.ssi.2025.116810","url":null,"abstract":"<div><div>The study is devoted to the quaternary ammonium compounds - Me<sub>4</sub>NHSO<sub>4</sub>. The detailed analysis of the proton conductivity and structural transformations of Me<sub>4</sub>NHSO<sub>4</sub> in a wide temperature range was carried out firstly. A phase transition of Me<sub>4</sub>NHSO<sub>4</sub> at 120°С associated with the appearance of intermediate phase with some orientational disorder of sulfate tetrahedra was observed. The slow rate phase transition at 210 °C to a high-temperature phase was firstly observed. Presumably the high-temperature phase corresponds to a tetragonal syngony. The temperature dependence of the proton conductivity fully corresponds to the structural phase transitions with the significant change of the activation energy at 120 °C from 1.8 eV to 0.7 eV up to 250 °C. The proton conductivity of Me<sub>4</sub>NHSO<sub>4</sub> of the high temperature phase is an order of magnitude higher than that of the related Et<sub>4</sub>NHSO<sub>4</sub> compound and reaches 4*10<sup>−4</sup> S/cm at 250 °C. The electrotransport and structural characteristics of Me<sub>4</sub>NHSO<sub>4</sub> and dispersed silicon dioxide containing composites were also investigated. The investigated (1-x)Me<sub>4</sub>NHSO<sub>4</sub>–xSiO<sub>2</sub> composites (x = 0.5 and 0.7) are characterized by the different degree of salt amorhpization and the conductivity increase.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"423 ","pages":"Article 116810"},"PeriodicalIF":3.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143631949","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
Synthesis and electrochemical performance enhancement of Li2MnSiO4 cathode material for lithium-ion batteries via Mn-site Cr doping
IF 3 4区 材料科学
Solid State Ionics Pub Date : 2025-03-17 DOI: 10.1016/j.ssi.2025.116847
Yuqi Yao , Xin Yan , Shao-hua Luo , Jing Guo
{"title":"Synthesis and electrochemical performance enhancement of Li2MnSiO4 cathode material for lithium-ion batteries via Mn-site Cr doping","authors":"Yuqi Yao ,&nbsp;Xin Yan ,&nbsp;Shao-hua Luo ,&nbsp;Jing Guo","doi":"10.1016/j.ssi.2025.116847","DOIUrl":"10.1016/j.ssi.2025.116847","url":null,"abstract":"<div><div>Li<sub>2</sub>MnSiO<sub>4</sub> stands out as a promising cathode material for lithium-ion batteries (LIBs) because of its remarkable theoretical capacity, excellent thermal stability, low cost, and environmental benefits. However, its practical application is hindered by poor electronic conductivity and lithium-ion diffusion rates. To overcome these challenges, Li<sub>2</sub>Mn<sub>1-x</sub>Cr<sub>x</sub>SiO<sub>4</sub> cathode materials were prepared through solid-state doping and a two-step calcination method. By doping Cr into the Mn site of Li<sub>2</sub>MnSiO<sub>4</sub>, the electrochemical performance can be significantly improved. TG-DTA tests were conducted to determine the optimal calcination temperature to ensure stable synthesis of the material. The research found that an optimal Cr doping level of 0.06 resulted in superior electrochemical performance, achieving a discharge capacity of 174.9 mAh g<sup>−1</sup> at 0.1C. This improvement is due to the reduction in grain size, which increases the specific surface area and enhances Li<sup>+</sup> diffusion. Additionally, the larger ionic radius of Cr creates more vacancies in the lattice, facilitating electron and ion migration. The Cr<img>O bond, being stronger than the Mn<img>O bond, further contributes to improved structural stability. Thus, Cr doping effectively addresses conductivity and diffusion limitations, leading to superior electrochemical performance and advancing high-performance LIBs.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"423 ","pages":"Article 116847"},"PeriodicalIF":3.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143631948","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
Interface design for enhancing the performance of solid oxide cell contact layers between interconnects and solid oxide cells
IF 3 4区 材料科学
Solid State Ionics Pub Date : 2025-03-17 DOI: 10.1016/j.ssi.2025.116841
Takayuki Nakao , Shuichi Inoue
{"title":"Interface design for enhancing the performance of solid oxide cell contact layers between interconnects and solid oxide cells","authors":"Takayuki Nakao ,&nbsp;Shuichi Inoue","doi":"10.1016/j.ssi.2025.116841","DOIUrl":"10.1016/j.ssi.2025.116841","url":null,"abstract":"<div><div>In a planar solid oxide cell (SOC) stack, the assembly consists of metal materials and ceramic cells in which various ceramics (such as electrolytes and electrodes) are laminated in multiple layers. Notably, the interface between the air-side electrode and the coated interconnector plays a critical role in determining the performance of the SOC stack, during the manufacturing process. Unlike other SOC cell components, which are typically sintered at high temperature (e.g., over 1000 °C), the contact material at this interface is constructed during the SOC stacking process, generally at a lower temperature range of 750 °C–850 °C. Consequently, the contact material connecting the air electrode and the coated interconnector must exhibit high adhesion and low electrical resistance at 800 °C. In this study, a low-resistance, highly adhesive interface between the air electrode and the interconnector in the SOC stack is developed through diffusion bonding and metal addition at lower temperatures. Co<img>Mn spinel oxides are employed as both the contact material and the coating layer, and a concentration gradient is achieved in the contact material and coating layer, with high adhesion and low resistance facilitated by the interdiffusion of Co and Mn. The heat generated during the oxidation of the added metallic Co promotes sintering, further enhancing adhesion. The diffusion bonding interface and the metal-added diffusion bonding interface were subjected to continuous durability tests over 10,000 h, and no deterioration was observed.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"423 ","pages":"Article 116841"},"PeriodicalIF":3.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143631947","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
Enhancing ionic conductivity in Li₇P₃S₁₁ solid electrolytes via doping strategies: Implications for solid-state lithium-sulfur batteries
IF 3 4区 材料科学
Solid State Ionics Pub Date : 2025-03-15 DOI: 10.1016/j.ssi.2025.116844
Amirhossein Mirtaleb, Ruigang Wang
{"title":"Enhancing ionic conductivity in Li₇P₃S₁₁ solid electrolytes via doping strategies: Implications for solid-state lithium-sulfur batteries","authors":"Amirhossein Mirtaleb,&nbsp;Ruigang Wang","doi":"10.1016/j.ssi.2025.116844","DOIUrl":"10.1016/j.ssi.2025.116844","url":null,"abstract":"<div><div>Solid-state electrolytes in the Li₂S-P₂S₅ system have emerged as promising candidates for next-generation all-solid-state batteries (ASSBs) due to their high ionic conductivity and superior electrochemical stability. Among these, the Li₇P₃S₁₁ phase exhibits exceptional ionic conductivity (∼10<sup>−3</sup> S cm<sup>−1</sup> at room temperature), making it a focal point for materials research. This review provides a comprehensive analysis of dopant-driven modifications in Li₇P₃S₁₁, emphasizing their impact on structural evolution, ionic transport, electrochemical performance, and long-term stability. Both cationic (e.g., transition and alkali metals) and anionic (e.g., oxygen) doping strategies are examined, offering insights into their roles in optimizing ionic conductivity and interfacial compatibility. Sulfide dopants enhance lithium-ion mobility and interfacial stability with lithium metal and sulfur cathodes, while oxide dopants improve air stability and suppress dendrite formation. Nitride dopants, though beneficial for interfacial compatibility, may introduce additional resistance at electrode-electrolyte interfaces. Despite these advancements, challenges such as dopant-induced phase instability, synthesis complexity, and environmental sensitivity persist, necessitating a strategic approach to doping. By categorizing dopants based on their chemical interactions with the Li₇P₃S₁₁ matrix, this review outlines a framework for rational dopant selection and design. The insights presented herein provide a foundation for advancing doped solid electrolytes, accelerating the development of high-performance lithium‑sulfur batteries for next-generation energy storage applications.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"423 ","pages":"Article 116844"},"PeriodicalIF":3.0,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629404","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信