Solid State Ionics最新文献

Fluoride ion conductivity in Li doped ASn2F5 (A = Na, K, Rb, Cs) Li掺杂ASn2F5的氟离子电导率（A = Na， K, Rb, Cs）

IF 3.3 4区材料科学

Solid State Ionics Pub Date : 2026-04-01 Epub Date: 2026-02-11 DOI: 10.1016/j.ssi.2026.117151

Tatsumi Ishihara , Fumitake Kanehara , Shotaro Kuramitsu , Jun Tae Song , Motonori Watanabe , Miki Inada

{"title":"Fluoride ion conductivity in Li doped ASn2F5 (A = Na, K, Rb, Cs)","authors":"Tatsumi Ishihara , Fumitake Kanehara , Shotaro Kuramitsu , Jun Tae Song , Motonori Watanabe , Miki Inada","doi":"10.1016/j.ssi.2026.117151","DOIUrl":"10.1016/j.ssi.2026.117151","url":null,"abstract":"<div><div>Fluoride ion battery is now expecting as a high energy density rechargeable battery which is alternative to Li ion rechargeable battery. For realizing all solid-state concept, fast fluoride ion conductor with wide electrochemical windows is required. In this study, fluoride ion conductivity in doped ASn<sub>2</sub>F<sub>5</sub> (A = Na, K, Rb, Cs) were measured and it was found that reasonably high fluoride ion conductivity was achieved on Rb<sub>0.9</sub>Li<sub>0.1</sub>Sn<sub>2</sub>F<sub>5</sub> which is layered structure and contained intrinsic fluoride vacancy. Transport number of fluoride ion in this Rb<sub>0.9</sub>Li<sub>0.1</sub>Sn<sub>2</sub>F<sub>5</sub> was also measured with fluoride concentration cell, Pb/sample/BiF<sub>3</sub> and the estimated transport number of fluoride ion was higher than 90% of theoretical one. For further analysis of fluoride ion conductivity in Rb<sub>0.9</sub>Li<sub>0.1</sub>Sn<sub>2</sub>F<sub>5</sub>, electrochemical pumping of fluoride ion was measured on the symmetrical cell consisting of BiF<sub>3</sub>/BiF<sub>3</sub> over 48 h and the amount of fluoride transported was reasonably agreed with the coulomb number through the sample. Linear scan voltammetry (LSV) shows the electrochemical stability windows of Rb<sub>0.9</sub>Li<sub>0.1</sub>Sn<sub>2</sub>F<sub>5</sub> was close to ca.3 V.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"438 ","pages":"Article 117151"},"PeriodicalIF":3.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172297","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

Research on casting technology and properties of LLZTO solid electrolytes LLZTO固体电解质的铸造工艺及性能研究

IF 3.3 4区材料科学

Solid State Ionics Pub Date : 2026-04-01 Epub Date: 2026-02-09 DOI: 10.1016/j.ssi.2026.117155

Zhen Ma, Runqing Yao, Dongmei Liu, Longrong Yao, Changyun Li, Xuliang Zhao, Yang Li

{"title":"Research on casting technology and properties of LLZTO solid electrolytes","authors":"Zhen Ma, Runqing Yao, Dongmei Liu, Longrong Yao, Changyun Li, Xuliang Zhao, Yang Li","doi":"10.1016/j.ssi.2026.117155","DOIUrl":"10.1016/j.ssi.2026.117155","url":null,"abstract":"<div><div>The tape-casting process has been widely used for the fabrication of solid electrolyte thin films. To further investigate the impact of this forming process on the performance of solid electrolytes, this study examines the key process parameters and optimization strategies involved in the tape-casting preparation of LLZTO solid electrolytes. A systematic investigation was conducted on the effects of solvent systems, dispersants, binder-plasticizer ratios, ball milling time, and degassing methods on the properties of the tape-casting slurry. The rheological and thixotropic properties of the slurry were optimized, and by combining a mother powder covering sintering method, lithium volatilization was effectively suppressed. The results indicate that under a sintering condition of 1250 °C, the relative density of the electrolyte pellet reached 94.3%, with an ionic conductivity of 1.02 × 10<sup>−4</sup> S/cm. The assembled all-solid-state battery exhibited a capacity retention of approximately 82% after 180 cycles at a 1C rate, demonstrating excellent electrochemical performance and cycling stability.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"438 ","pages":"Article 117155"},"PeriodicalIF":3.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172324","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

Unraveling the “O−” electron state in perovskites on the example of SrFeO3 by means of plane-wave DFT 以SrFeO3为例，用平面波离散傅立叶变换解析钙钛矿中的O−电子态

IF 3.3 4区材料科学

Solid State Ionics Pub Date : 2026-04-01 Epub Date: 2026-02-10 DOI: 10.1016/j.ssi.2026.117153

Nikita A. Afimchenko, Aleksandr A. Shubin, Igor L. Zilberberg, Alexander P. Nemudry

{"title":"Unraveling the “O−” electron state in perovskites on the example of SrFeO3 by means of plane-wave DFT","authors":"Nikita A. Afimchenko, Aleksandr A. Shubin, Igor L. Zilberberg, Alexander P. Nemudry","doi":"10.1016/j.ssi.2026.117153","DOIUrl":"10.1016/j.ssi.2026.117153","url":null,"abstract":"<div><div>The “O<sup>−</sup>” state in the ABO<sub>3</sub> perovskites has been discussed for decades to explain high oxygen ionic conductivity in some perovskites. Although the electron states of oxygen ion with low electron density have indeed been detected using the O1s X-ray photoelectron spectroscopy (XPS) in many perovskites, the structure (atomic or molecular) of “O<sup>−</sup>” remains uncertain. On base of the plane-wave DFT modeling in the present work the mysterious “O<sup>−</sup>” state has been assigned to the oxygen of peroxo group which forms via the association of two “O<sup>−</sup>” species on the surface and possibly at the grain boundary of the polycrystalline samples. Such effects is suggested to take place primarily for the perovskites possessing negative charge-transfer gap and so being able for spontaneous electron holes formation in the oxygen valence band. The appearance of these holes reveals itself in (1) the inverted t<sub>2g</sub>-e<sub>g</sub> crystal-field splitting of the <em>d</em>(Fe) states, and (2) the “3+” oxidation state for all iron ions. To model peroxo-like species there has been chosen the strontium ferrite SrFeO<sub>3-δ</sub>. DFT modeling shows that each O<img>O association forms the peroxide ion which traps two electron holes making them localized and detectible via the density of states. Simultaneously, the O<img>O association is accompanied by the drop of the number of states at the Fermi level due to the disruption of conducting Fe-O-Fe bridges.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"438 ","pages":"Article 117153"},"PeriodicalIF":3.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172323","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

Research on the preparation of Fe2AlB2 MAB phase by molten salt electrochemical method and its electrochemical performance 熔盐电化学法制备Fe2AlB2 MAB相及其电化学性能研究

IF 3.3 4区材料科学

Solid State Ionics Pub Date : 2026-04-01 Epub Date: 2026-02-04 DOI: 10.1016/j.ssi.2026.117142

Ning Han, Yang Liu, Ying Chen, Hongyan Yan

{"title":"Research on the preparation of Fe2AlB2 MAB phase by molten salt electrochemical method and its electrochemical performance","authors":"Ning Han, Yang Liu, Ying Chen, Hongyan Yan","doi":"10.1016/j.ssi.2026.117142","DOIUrl":"10.1016/j.ssi.2026.117142","url":null,"abstract":"<div><div>Fe<sub>2</sub>AlB<sub>2</sub> has emerged as a research hotspot due to its high damage tolerance and magnetocaloric effect, serving as a representative MAB-phase ceramic. Addressing the stringent storage and reaction environment requirements associated with using Al powder as raw material in Fe<sub>2</sub>AlB<sub>2</sub> preparation, this study employs a molten salt electrochemical method using FeB and Al<sub>2</sub>O<sub>3</sub> as raw materials. Analysis of the reaction mechanism reveals that electrochemical reduction of Al<sub>2</sub>O<sub>3</sub> occurs first, followed by mutual diffusion of Al and FeB to form Fe<sub>2</sub>AlB<sub>2</sub>. The reduction of Al<sub>2</sub>O<sub>3</sub> primarily occurs during the initial stage and influences the formation of Fe<sub>2</sub>AlB<sub>2</sub> due to the rapid progression of the electrochemical reaction. Characterization and performance studies of the synthesized Fe<sub>2</sub>AlB<sub>2</sub> demonstrate the acquisition of a layered structure and Fe<sub>2</sub>AlB<sub>2</sub> powder with certain electrochemical properties.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"438 ","pages":"Article 117142"},"PeriodicalIF":3.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116712","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

Increasing the electrical conductivity of La2Ce2O7 thin films by hydration 水化提高La2Ce2O7薄膜的导电性

IF 3.3 4区材料科学

Solid State Ionics Pub Date : 2026-04-01 Epub Date: 2026-02-11 DOI: 10.1016/j.ssi.2026.117150

Daniel Freidzon , Ellen Wachtel , Anna Kossoy , Hagai Cohen , Ayelet Vilan , David Ehre , Isaac Abrahams , Igor Lubomirsky

{"title":"Increasing the electrical conductivity of La2Ce2O7 thin films by hydration","authors":"Daniel Freidzon , Ellen Wachtel , Anna Kossoy , Hagai Cohen , Ayelet Vilan , David Ehre , Isaac Abrahams , Igor Lubomirsky","doi":"10.1016/j.ssi.2026.117150","DOIUrl":"10.1016/j.ssi.2026.117150","url":null,"abstract":"<div><div>Proton conductors are essential for a wide range of applications including solid oxide fuel cells, sensors and resistivity switches. However, commonly used proton-conducting materials such as Nafion, doped barium zirconate, and cesium dihydrogen phosphate suffer from significant limitations - including poor long-term stability and microfabrication compatibility. Recent work has shown that bulk La<sub>2</sub>Ce<sub>2</sub>O<sub>7</sub> (LCO50) ceramics hydrate in moist environments and exhibit increased conductivity at temperatures below 473 K. In this work, we investigate the hydration behavior of magnetron-sputtered LCO50 thin films. We demonstrate that water can be incorporated into the crystal lattice, leading to an approximately fivefold increase at 363 K in the total conductivity of the as-deposited film. Extrapolating the exponential temperature dependence to room temperature, yields an approximately 10<sup>3</sup> fold conductivity enhancement, in agreement with values derived from XPS/CREM. To confirm that the total conductivity of the hydrated film is at least partially protonic, and to demonstrate that LCO50 can function as a mixed ion conductor, we demonstrate its use as the electrolyte in a layered tungsten oxide electrochromic device.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"438 ","pages":"Article 117150"},"PeriodicalIF":3.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172296","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

The crucial role of defect interactions for thermodynamics and kinetics in solid state Ionics 缺陷相互作用在固态离子热力学和动力学中的关键作用

IF 3.3 4区材料科学

Solid State Ionics Pub Date : 2026-04-01 Epub Date: 2026-02-11 DOI: 10.1016/j.ssi.2026.117152

S. Neitzel-Grieshammer , M. Martin

引用次数: 0

Electrochemical performance of bismuth doping La2NiO4+δ for SOFCs cathode 铋掺杂La2NiO4+δ对SOFCs阴极电化学性能的影响

IF 3.3 4区材料科学

Solid State Ionics Pub Date : 2026-04-01 Epub Date: 2026-02-12 DOI: 10.1016/j.ssi.2026.117160

Fei Han, Qinan Zhou, Yan Liu, Bi Xu, Zhijian Zhang, Hongxue Li, Yuanyuan Wang, Tianyu Liu, Haochen Shi

{"title":"Electrochemical performance of bismuth doping La2NiO4+δ for SOFCs cathode","authors":"Fei Han, Qinan Zhou, Yan Liu, Bi Xu, Zhijian Zhang, Hongxue Li, Yuanyuan Wang, Tianyu Liu, Haochen Shi","doi":"10.1016/j.ssi.2026.117160","DOIUrl":"10.1016/j.ssi.2026.117160","url":null,"abstract":"<div><div>The development of cathodes that exhibit high oxygen catalytic activity represents a critical focus in the field of solid oxide fuel cells (SOFCs). This study characterizes La<sub>2</sub>Ni<sub>1-x</sub>Bi<sub>x</sub>O<sub>4+δ</sub> (LN<sub>1-x</sub>B<sub>x</sub>O x = 0–0.05) perovskite-like layered oxide and evaluates it as a potential cathode material for SOFCs. The results show that when Bi<sup>3+</sup> ion with larger radii is introduced into the Ni-site, the tolerance factor of the material decreased and the free unit-cell volume increased, which enhances the oxygen ion conductivity of the material. The iodometric titration results further confirm that the increase in Bi<sup>3+</sup> content leads to an increase in the δ value, indicating a higher interstitial oxygen content in the material. The interstitial oxygen can easier be released in the crystal lattice which form oxygen vacancies and promote oxygen catalytic activity. Additionally, the sample with x = 0.04 exhibits optimal porosity and particle size, resulting in an expanded triple-phase boundaries (TPBs). The process of reduction of oxygen atoms at the TPBs is accelerated after doping. The LNB<sub>0.04</sub>O/SDC/LNB<sub>0.04</sub>O symmetrical cell has the minimum polarization resistance (<em>Rp</em>) and the maximum power density at the same test temperature. These results suggest that the addition of Bi ions effectively boosts the electrochemical properties of the cathode materials.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"438 ","pages":"Article 117160"},"PeriodicalIF":3.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172294","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

High-performance solid-state electrolytes via synergistic ion interaction 通过协同离子相互作用的高性能固态电解质

IF 3.3 4区材料科学

Solid State Ionics Pub Date : 2026-04-01 Epub Date: 2026-02-13 DOI: 10.1016/j.ssi.2026.117156

Yage Wang , Rui Wang , Yu Shen , Tao Huan , Jingxin Lu

{"title":"High-performance solid-state electrolytes via synergistic ion interaction","authors":"Yage Wang , Rui Wang , Yu Shen , Tao Huan , Jingxin Lu","doi":"10.1016/j.ssi.2026.117156","DOIUrl":"10.1016/j.ssi.2026.117156","url":null,"abstract":"<div><div>The interfacial instability between sulfide-based solid electrolytes (SSEs) and sodium metal anodes significantly hinders the development of all-solid-state sodium batteries. Therefore, the design of solid electrolytes combining high ionic conductivity and excellent interfacial stability is of critical importance for advancing their practical application. To address the poor interfacial compatibility of Na<sub>3</sub>SbS<sub>4</sub> (NSS) electrolyte with sodium metal, this study proposes a modification strategy via synergistic anion-cation co-doping. Using CaO as the doping source, a series of solid electrolytes with the composition Na<sub>3-2x</sub>Ca<sub>x</sub>SbS<sub>4-x</sub>O<sub>x</sub> (x = 0.025–0.1) were successfully synthesized through high-energy ball milling followed by heat treatment. The effects of Ca<img>O dual doping on the crystal structure, ion transport behavior, and electrochemical stability of the materials were systematically investigated. It was found that the introduction of Ca<sup>2+</sup> optimizes bulk ionic conductivity by generating sodium vacancies, while the incorporation of O<sup>2−</sup> induces the formation of a highly ion-conductive passivation layer at the electrolyte/sodium metal interface. These effects work synergistically to enhance the overall performance of the material. The results demonstrate that multi-element doping is a viable strategy for simultaneously regulating the bulk and interfacial properties of sulfide electrolytes, providing experimental support for the development of high-performance all-solid-state sodium batteries.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"438 ","pages":"Article 117156"},"PeriodicalIF":3.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172293","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

Catalytic synthesis of closed packed antimony-incorporated hard carbon composites for enhanced sodium storage 催化合成用于增强钠储存的封闭填充含锑硬碳复合材料

IF 3.3 4区材料科学

Solid State Ionics Pub Date : 2026-03-15 Epub Date: 2026-01-29 DOI: 10.1016/j.ssi.2026.117139

Qianhui Fu , Mingzhu Gao , Shaoyang Dai , Peng Liu , Yanfei Hua , Ya Yao , Zhongfa Cheng , Zhongmin Wang , Jianqiu Deng

{"title":"Catalytic synthesis of closed packed antimony-incorporated hard carbon composites for enhanced sodium storage","authors":"Qianhui Fu , Mingzhu Gao , Shaoyang Dai , Peng Liu , Yanfei Hua , Ya Yao , Zhongfa Cheng , Zhongmin Wang , Jianqiu Deng","doi":"10.1016/j.ssi.2026.117139","DOIUrl":"10.1016/j.ssi.2026.117139","url":null,"abstract":"<div><div>Pitch with low cost and high carbon yield serves as an ideal precursor for high-performance hard carbon anodes in sodium-ion batteries. While air pre-oxidation is critical for promoting pitch crosslinking during hard carbon preparation, low-softening-point pitch suffers from inefficient oxidative crosslinking, often resulting in soft carbon with narrow interlayer spacing. Herein, we propose a biomass skeleton-loaded catalyst strategy to suppress the melt rearrangement of pitch through physical confinement by the biomass skeleton and SbCl<sub>3</sub>-catalyzed deep crosslinking. Notably, the in-situ generated antimony nanoparticles during the pyrolysis process can serve as an active component to enhance sodium storage performance and eliminate the need for subsequent pickling procedures. The resultant hard carbon/antimony composite exhibits superior electrochemical performance, delivering a high reversible capacity of 275.5 mAh g<sup>−1</sup> at 30 mA g<sup>−1</sup> with 82.7% capacity retention after 100 cycles. Remarkably, it maintains 158.5 mAh g<sup>−1</sup> after 2000 cycles at 1 A g<sup>−1</sup>, demonstrating exceptional high-rate cyclability. FTIR and XPS analyses reveal that SbCl<sub>3</sub> catalysis modulates the type and concentration of oxygen-containing functional groups on the carbon surface, creating abundant active sites for reversible sodium-ion adsorption.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"437 ","pages":"Article 117139"},"PeriodicalIF":3.3,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076258","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-compatible P(VdF-HFP)-graft-PSBMA based gel polymer electrolyte for high-voltage lithium metal batteries 高压锂金属电池用接口兼容P(VdF-HFP)-接枝- psbma凝胶聚合物电解质

IF 3.3 4区材料科学

Solid State Ionics Pub Date : 2026-03-15 Epub Date: 2026-02-03 DOI: 10.1016/j.ssi.2026.117140

Changyong Mo , Weiqi Liang , Ning Xu , Guanjie Li , Youhao Liao , Weishan Li

{"title":"Interface-compatible P(VdF-HFP)-graft-PSBMA based gel polymer electrolyte for high-voltage lithium metal batteries","authors":"Changyong Mo , Weiqi Liang , Ning Xu , Guanjie Li , Youhao Liao , Weishan Li","doi":"10.1016/j.ssi.2026.117140","DOIUrl":"10.1016/j.ssi.2026.117140","url":null,"abstract":"<div><div>The application of gel polymer electrolyte (GPE) is currently the most effective strategy to address the safety issues associated with high-energy-density lithium metal batteries (LMBs). However, traditional poly(vinylidene fluoride-hexafluoropropylene) (P(VdF-HFP))-based GPE demonstrates poor interfacial compatibility with lithium anode, limiting its further application in LMBs. To solve this issue, [2-(Methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl) ammonium (SBMA) is chemically grafted onto P(VdF-HFP) polymer matrix. As an amphoteric polymer, PSBMA guids the uniform decomposition of lithium, thus avoiding the formation of lithium dendrites. Compared with pure P(VdF-HFP), the grafted membrane illustrates the improved wettability with liquid electrolyte, as evidenced by a reduction in the contact angle of 23.04°. Additionally, the Li<sup>+</sup>-ion transference number enhances from 0.68 to 0.76. Due to the increased fracture stress of 129.4 MPa and the ionic conductivity at room temperature of 1.96 × 10<sup>−3</sup> S cm<sup>−1</sup>, the grafted GPE assembled Li||Li symmetrical cell presents a stable cycling time exceeding 2000 h at a current density of 0.5 mA cm<sup>−2</sup>. Furthermore, the discharge capacity of LiNi<sub>0.8</sub>Co<sub>0.15</sub>Al<sub>0.05</sub>O<sub>2</sub>/Li cell with grafted GPE retains 78% of initial capacity after 100 cycles at 1C rate within a voltage of 3 V to 4.5 V, compared with that of 74% for pure P(VdF-HFP) based GPE. Therefore, the developed grafting GPE, which is compatible with electrode has shown great potential for application in LMBs.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"437 ","pages":"Article 117140"},"PeriodicalIF":3.3,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171166","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