Solid State Ionics最新文献

{"title":"Effect of phosphorus and fluorine on sinterability, c-axis orientation, and ionic conductivity of lanthanum silicate oxyapatite","authors":"Shigekazu Hidaka ,&nbsp;Takahisa Yamamoto","doi":"10.1016/j.ssi.2025.116919","DOIUrl":"10.1016/j.ssi.2025.116919","url":null,"abstract":"<div><div>Lowering the operating temperature of solid oxide cells (SOCs) is a key challenge for their widespread use. Lanthanum silicate oxyapatite (LSO) is a promising electrolyte material owing to its high ionic conductivity along the <em>c</em>-axis direction. The application of LSO is hindered by its low sinterability and the requirement for controlling <em>c</em>-axis orientation. In this study, we investigated the effects of phosphorus and fluorine as sintering dopants on the sinterability, microstructure, and ionic conductivity of LSO. Dense LSO pellets with a relative density of over 95 % were successfully fabricated at sintering temperatures of 1550 °C for fluorine-added LSO and 1700 °C for phosphorus-added LSO. Phosphorus-added LSO exhibited characteristic columnar grain growth along the <em>c</em>-axis direction, resulting in higher ionic conductivities under approximately 700 °C compared with that of yttria-stabilized zirconia. These results provide valuable guidance for lowering the operating temperatures of SOCs.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"428 ","pages":"Article 116919"},"PeriodicalIF":3.0,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213504","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}

{"title":"Optical evaluation of Ni, Fe and Co impurity content in Y-doped barium zirconate","authors":"Kunihiko Shizume,&nbsp;Naoyuki Hatada,&nbsp;Tetsuya Uda","doi":"10.1016/j.ssi.2025.116878","DOIUrl":"10.1016/j.ssi.2025.116878","url":null,"abstract":"<div><div>Y-doped BaZrO₃ (BZY) is a promising candidate for the electrolyte material of proton conducting fuel cell (PCFC). The impurity concentrations of Ni, Co, and Fe are often of interest in studies of cell processing because the electrochemical performances and the sinterability remarkably depend on the concentrations. This work proposes a simple technique to quantify the dissolved Fe, Co, and Ni in BZY sintered bodies by evaluating the color in the <em>L</em>^<em>⁎</em><em>a</em>^<em>⁎</em><em>b</em>^<em>⁎</em> color space. Colorimetric measurements revealed a roughly linear relationship between <em>L</em>^<em>⁎</em> and the logarithm of Fe, Co, and Ni concentrations in the dilute range from 0.001 to 0.1 at.%, providing an empirical calibration curve. <em>L</em>^<em>⁎</em> values also depend on the raw BZY powders used as the starting material and the sintering procedure, resulting in variations in relative density, Ba deficiency and excess of the sintered body. Therefore, when applied to a series of sintered bodies with consistent starting material and same processes, this calibration curve is reliable.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"427 ","pages":"Article 116878"},"PeriodicalIF":3.0,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144178421","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}

{"title":"The road to high-entropy: Combinatorial sequential doping study of Ba2In2O5","authors":"Niels Schreiner ,&nbsp;Angela Angelodimou ,&nbsp;Mohammad Soleimani ,&nbsp;Auguste Stanionytė ,&nbsp;Richard Matysek ,&nbsp;Giuditta Perversi","doi":"10.1016/j.ssi.2025.116901","DOIUrl":"10.1016/j.ssi.2025.116901","url":null,"abstract":"<div><div>Ba₂In₂O₅ is a rare-earth free material extensively explored for its remarkable oxygen-ion conductivity properties, highly sought after in the field of solid-state ionic and related devices. These properties can be activated at lower temperatures, and augmented with mixed ionic-electronic conductivity, by stabilization of its cubic perovskite phase through a variety of doping on the indium site. Following this reported flexibility, this study attempts a systematic doping of Ba₂In₂O₅ with a variety of metals (Co, Cr, Fe, Mn, Ni, Sn, Ti, V, Zr), with incremental steps approached in a combinatorial fashion; starting from one dopant, we provide various combinations of 2, 3, and 4 dopant options, with the latter representing the first high-entropy perovskite doping attempt on this system. Out of the 48 attempted composition, 8 yielded novel stable <em>Pm-3m</em> perovskites, of which one high-entropy perovskite and two medium-entropy perovskites; additionally, three more composition in medium entropy range and one more composition in high entropy range approached stability with minimal splitting. Through thermogravimetric analysis, all cubic compounds showcased reversible evolution of oxygen upon heating. The phase stabilization of a single phase multi-doped system appears to be the result of a complex relationship between element sizes, charges and orbital configurations. While increases in entropy of the indium sublattice were always accompanied by reduced oxygen mobility onset temperatures, we critically assessed the pairwise interaction between different metals and their impact on mobile oxygen quantities in different temperature ranges (500 to 900 °C). Is high-entropy always achievable in a system with appropriate flexibility? If so, it is actually beneficial in its impact on the materials properties? The results of this study highlight interesting avenues for compositionally complex oxides.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"427 ","pages":"Article 116901"},"PeriodicalIF":3.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168641","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}

{"title":"Unveiling the relationship between packing fraction, elastic properties, and ionic conductivity in highly modified alkali-borate glasses","authors":"Ningyuan Fang ,&nbsp;Nagia S. Tagiara ,&nbsp;Marcio L.F. Nascimento ,&nbsp;Caio B. Bragatto","doi":"10.1016/j.ssi.2025.116899","DOIUrl":"10.1016/j.ssi.2025.116899","url":null,"abstract":"<div><div>The ionic conductivity of glasses can be understood through the Anderson and Stuart model, in which the process's activation energy is divided into two parts — the binding and the strain energies. In turn, the strain energy mostly depends on the glass's elastic properties, which can be related to the packing fraction according to the Makishima and Mackenzie model. In this work, the possible dependency between packing fractions, strain and ionic conductivity activation energies were studied for lithium and sodium borate glasses containing high alkali-oxide concentrations. A linear dependency was found for compositions up to ≈ 33 mol% alkali oxide, a composition known from the boron anomaly model. This result reinforces the strong electrolyte behavior of the glass up to ≈ 33 mol% concentration for both systems with an activation enthalpy of 0.6 eV while indicating a significant change in the charge carrier's behavior. Strain energy prediction fails for large amounts of alkali oxides, indicating other factors besides the elastic property are involved in the ionic conductivity of the highly modified glasses.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"427 ","pages":"Article 116899"},"PeriodicalIF":3.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168589","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}

{"title":"Nanocube-structured ZnSn(OH)₆ for enhanced bifunctional electrocatalysis in oxygen evolution and urea oxidation reactions","authors":"Yu Zhao ,&nbsp;Santhosh Kumar Thatikonda ,&nbsp;Mohamed A. Ghanem ,&nbsp;Gutturu Rajasekhara Reddy ,&nbsp;Sang Woo Joo","doi":"10.1016/j.ssi.2025.116915","DOIUrl":"10.1016/j.ssi.2025.116915","url":null,"abstract":"<div><div>Abstract</div><div>This research investigates the development of bifunctional electrocatalysts for renewable energy applications, specifically water splitting and urea oxidation. Nanostructured zinc hydroxystannate (ZnSn(OH)₆; ZHS) was synthesized and characterized as a potential catalyst for these reactions. Electrochemical measurements demonstrated that ZHS exhibits promising catalytic activity for both oxygen evolution and urea oxidation. A current density of 10 mA cm⁻² was achieved by the active material at an overpotential of 216 mV for urea oxidation, and 392 mV for oxygen evolution with corresponding Tafel slopes of 110.8 and 37.2 mV dec⁻¹, respectively. These results suggest that ZHS could be a promising candidate for future energy storage and conversion technologies. The electrocatalysts highly crystalline structure and extensive electrochemical active surface area enhance charge transfer kinetics and accelerate reaction rates, underscoring its exceptional electrocatalytic performance. This study presents a straightforward approach to developing bifunctional electrocatalysts with enhanced OER and UOR capabilities</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"427 ","pages":"Article 116915"},"PeriodicalIF":3.0,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168588","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}

{"title":"Pathways for Li+ migration in Li1+xV3O8: Geometrical-topological analysis","authors":"E.A. Sherstobitova ,&nbsp;Ye.A. Morkhova ,&nbsp;N.V. Proskurnina ,&nbsp;M.S. Shchelkanova ,&nbsp;G.Sh. Shekhtman ,&nbsp;M.A. Semkin ,&nbsp;P.E. Romashko ,&nbsp;A.N. Pirogov ,&nbsp;V.I. Voronin ,&nbsp;N.A. Kabanova ,&nbsp;A.F. Gubkin","doi":"10.1016/j.ssi.2025.116904","DOIUrl":"10.1016/j.ssi.2025.116904","url":null,"abstract":"<div><div>In the present work, the crystal structure of the Li_1+xV₃O₈ (<em>x</em> = 0.1, 0.2, and 0.3) compounds was studied using both X-ray and neutron powder diffraction. This study provided a clear understanding of the lithium positions. We found that increase of the lithium content from 0.1 up to 0.3 in Li_1+xV₃O₈ gives rise to a statistical distribution of excessive lithium over a number of vacant interstitials between the [V₃O₈]⁻ layers. One dimensional migration map composed from the chain elementary channels along the [010] direction have been revealed by geometrical-topological analysis. These channels consist of vacant octahedral and tetrahedral positions which can accommodate Li⁺ ions diffusion via direct hopping mechanism. Bond valence site energy calculations confirmed one-dimensional diffusion with lithium migration barriers of 0.55 eV.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"427 ","pages":"Article 116904"},"PeriodicalIF":3.0,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138955","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}

{"title":"The design of LiTFSI-based poly(vinylidene fluoride)-poly(vinyl acetate) composite polymer electrolyte and its integrated membrane with electrodes","authors":"Haozhong Huang ,&nbsp;Kaibo Fan ,&nbsp;Kai Cao ,&nbsp;Zhongheng Zhu ,&nbsp;Qichen Zhang ,&nbsp;Biao Wang ,&nbsp;Ling Sun ,&nbsp;Yong Zhao ,&nbsp;Li Wang ,&nbsp;Zhengguang Hu","doi":"10.1016/j.ssi.2025.116918","DOIUrl":"10.1016/j.ssi.2025.116918","url":null,"abstract":"<div><div>Solid-state lithium metal batteries are promising energy storage devices. However, there are factors limiting their electrochemical performance and practical applications. These include the low ionic conductivity of solid-state electrolytes, poor electrode-electrolyte compatibility, inhomogeneous current density, and lithium dendrite growth problems. This work employs a straightforward slurry casting and drying technique to prepare composite polymer electrolytes (denoted as PVDF/AC) using the polyvinylidene fluoride (PVDF), polyvinyl acetate (PVAC), ‌Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) and <em>N</em>,<em>N</em>-Dimethylformamide (DMF) as raw materials. The fabricated electrolyte membrane demonstrates a high ionic conductivity (1.73 × 10⁻⁴ S cm⁻¹), an electrochemical stability window of approximately 4.67 V, and a favorable lithium ion transference number of 0.51. Additionally, a straightforward cathode-solid electrolyte integration strategy is proposed to address the poor interface compatibility caused by solid-solid point contact. By employing this strategy, the integrated battery demonstrates reduced resistance (121.6 Ω), enhanced cycling stability (retaining a discharge capacity of 162 mAh/g at 0.5C after 170 cycles, with a capacity retention of 96.4 %), and superior rate performance in comparison to conventional batteries. It is anticipated that this integration strategy will be widely adopted to enhance the interfacial stability and electrochemical performance of all solid-state batteries.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"427 ","pages":"Article 116918"},"PeriodicalIF":3.0,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154575","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}

{"title":"Enhanced electrochemical performance of La0.6Mo0.4Fe1-xNixO3 perovskite oxide nano-ceramics for supercapacitor electrodes and lithium-ion battery anodes","authors":"M.S. Shalaby ,&nbsp;Soraya Abdelhaleem ,&nbsp;M.I.A. Abdel Maksoud ,&nbsp;M. Salah ,&nbsp;Nashwa M. Yousif","doi":"10.1016/j.ssi.2025.116916","DOIUrl":"10.1016/j.ssi.2025.116916","url":null,"abstract":"<div><div>Only by combining large-scale electrochemical energy with renewable energy sources, like solar or wind power plants, can a green energy ecosystem replace one based on fossil fuel devices for storage. Electrodes for high-capacitive pseudocapacitors could provide high-power output and high-energy storage. Fast, reversible surface faradaic redox reactions are used in electrochemical energy storage, employing pseudocapacitors to produce highly efficient green energy devices cheaply. We describe Ni-doped La_0.6Mo_0.4FeO₃ as an electrode material for supercapacitor and Lithium-ion Battery Anode design. The La_0.6Mo_0.4Fe_1-xNi_xO₃ (x = 0, 0.1) has been synthesized via a chemical route. Structural and microstructural progress has been carried out by X-ray diffraction (XRD) analysis, scanning electron microscopy, and transmission electron microscopy (TEM). Electrochemical impedance spectroscopy (EIS), galvanostatic charge-discharge (GCD), and cyclic voltammetry (CV) are used to estimate the electrochemical properties of La_0.6Mo_0.4Fe_1-xNi_xO₃ as an active material with 6 M KOH as the electrolyte for supercapacitors and Lithium-ion Battery Anode. The highest gravimetric capacitance of La_0.6Mo_0.4Fe_1-xNi_xO₃ (x = 0 and 0.1) materials was determined to be 933.1 and 1143.9 F/g at a 5 mV/s scan rate. The La_0.6Mo_0.4Fe_1-xNi_xO₃ electrode's outstanding performance holds much hope for high-performance pseudocapacitors.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"427 ","pages":"Article 116916"},"PeriodicalIF":3.0,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138954","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}

{"title":"Dual perovskite La2NiMnO6 coating modified LiNi0.8Co0.1Mn0.1O2 as cathode material for lithium ion batteries","authors":"Yunwang Fu ,&nbsp;Hong Yuan ,&nbsp;Hongqin Liang ,&nbsp;Wei Liao ,&nbsp;Xiaowen Yu ,&nbsp;Meng Wang ,&nbsp;Lian Wang ,&nbsp;Xuebu Hu","doi":"10.1016/j.ssi.2025.116902","DOIUrl":"10.1016/j.ssi.2025.116902","url":null,"abstract":"<div><div>Layer LiNi_0.8Co_0.1Mn_0.1O₂ (NCM) has become one of the promising cathode materials in lithium ion batteries due to its high energy density, structural stability and low cost. However, severe lithium nickel mixing and surface side reactions lead to poor cycling stability and rate performance. To address this issue, dual perovskite La₂NiMnO₆ (LNMO) coated NCM cathode is designed and prepared. The results indicate that an appropriate amount of LNMO coating effectively improves the cycling and rate performance of the NCM. After 100 cycles at 1.0C, the capacity retention rate of NCM coated with 1 wt% LNMO (LNMO1.0-NCM) reaches 84.9 % compared to 69.5 % of original NCM. At a high rate of 5.0C, the LNMO1.0-NCM shows 143.5 mAh g⁻¹ of the specific capacity, higher than 128.4 mAh g⁻¹ of the NCM. Therefore, LNMO coating can not only serve as a protective layer to prevent electrode materials from being corroded by the electrolyte, but also promote the diffusion rate of lithium ions and accelerate diffusion kinetics.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"427 ","pages":"Article 116902"},"PeriodicalIF":3.0,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116996","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}

{"title":"Effects of disorder on the energy landscape and motional mechanisms involved in lithium ion dynamics and transport in solid electrolytes: Li5.5PS4.5Cl1.5 argyrodite as a case study","authors":"Mohammad Ali Badragheh ,&nbsp;Vanessa Miß ,&nbsp;Bernhard Roling ,&nbsp;Michael Vogel","doi":"10.1016/j.ssi.2025.116903","DOIUrl":"10.1016/j.ssi.2025.116903","url":null,"abstract":"<div><div>⁷Li NMR diffusometry and relaxometry are combined with electrochemical impedance spectroscopy to compare the mechanisms for the dynamics and transport of lithium ions in disordered and crystalline electrolytes with argyrodite composition Li_5.5PS_4.5Cl_1.5. The <em>dc</em> conductivity of a disordered sample prepared by ball milling amounts to 0.76 mScm⁻¹ at room temperature, which is substantially lower than that of two previously studied crystalline argyrodites differing in the order of the anion sublattice due to various heat treatments. However, the activation energy of the <em>dc</em> conductivity is smaller for ball-milled disordered Li_5.5PS_4.5Cl_1.5 (<span><math><msub><mi>E</mi><mi>dc</mi></msub><mo>=</mo></math></span> 0.35 eV) than for both crystalline compounds (<span><math><msub><mi>E</mi><mi>dc</mi></msub><mo>=</mo></math></span> 0.38 eV). ⁷Li NMR field-gradient measurements of the self-diffusion coefficient <span><math><mi>D</mi></math></span> and its activation energy <span><math><msub><mi>E</mi><mi>D</mi></msub></math></span> confirm these findings and, furthermore, reveal different Haven ratios. ⁷Li NMR field-cycling relaxometry shows that the lithium ion jumps in ball-milled Li_5.5PS_4.5Cl_1.5 are described by very broad dynamical susceptibilities arising from a temperature-independent Gaussian-like distribution of activation energies <span><math><mi>g</mi><mfenced><msub><mi>E</mi><mi>a</mi></msub></mfenced></math></span> with a mean value of <span><math><msub><mi>E</mi><mi>m</mi></msub><mo>=</mo></math></span> 0.43 eV, while the susceptibilities indicated a high-energy cutoff for the crystalline electrolytes. Based on different relations between the activation energies for the conductivity, diffusivity and jumps, we discuss that the shape and exploration of the energy landscapes of ball-milled and crystalline Li_5.5PS_4.5Cl_1.5 samples strongly differ. Moreover, significant differences in the preexponential factor of the <em>dc</em> conductivity, the Haven ratio and the single-particle correlation factor point to distinct types of anion lattice disorder of the ball-milled disordered and heat-treated crystalline samples.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"427 ","pages":"Article 116903"},"PeriodicalIF":3.0,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124657","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}