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Optimization of lithium ion conductivity of Li2S-P2S5 glass ceramics by microstructural control of crystallization kinetics Solid State Ionics (IF 3.107) Pub Date : 2021-02-26 Shutong Lu; Fumihiko Kosaka; Shinya Shiotani; Hirofumi Tsukasaki; Shigeo Mori; Junichiro Otomo
To improve the Li ion conductivity in a glass-ceramic solid electrolyte, the microstructural control for Li2S-P2S5 glass ceramics was investigated based on crystallization kinetics. 75Li2S∙25P2S5 (mol.%) glass was synthesized by a ball-milling method, and glass-ceramics were prepared by crystallization with heat treatment at various temperatures with appropriate holding times. Crystallization kinetics—nucleation
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Anisotropic behavior of mechanically extruded sulfonated polysulfone: Implications for proton exchange membrane fuel cell applications Solid State Ionics (IF 3.107) Pub Date : 2021-02-19 Cataldo Simari; Ernestino Lufrano; Giuseppina Anna Corrente; Isabella Nicotera
Suflfonated polysulfone (sPSU) ionomer has recently emerged as very promising alternative to perfluorinated membranes in proton exchange membrane fuel cell applications. To elucidate the effect of membrane fabrication process on the final properties of the films, sPSU membranes were prepared by two of the most common preparation procedures, that are mechanical extrusion by doctor blade or recast process
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Influence of Mn2+ on mechanical, dynamical, and structural properties of solid electrolyte interphase in Li-ion batteries: A molecular dynamics simulation study Solid State Ionics (IF 3.107) Pub Date : 2021-02-12 Mahsa Ebrahiminia; Cun Wang; Dengpan Dong; Lidan Xing; Justin B. Hooper; Dmitry Bedrov
The influence of different amounts of Mn2+ contaminants on mechanical, dynamical, and structural properties of a solid electrolyte interphase (SEI) has been studied using atomistic molecular dynamics and Monte-Carlo simulations employing the many-body polarizable APPLE&P force field. Bulk SEI systems comprised of amorphous Li2CO3 with some fraction of cations replaced with Mn2+ ions have been investigated
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Dependence of hydrogen oxidation reaction on water vapor in anode-supported solid oxide fuel cells Solid State Ionics (IF 3.107) Pub Date : 2021-02-12 R.A. Budiman; T. Ishiyama; K.D. Bagarinao; H. Kishimoto; K. Yamaji; T. Horita
In order to understand the hydrogen oxidation reaction (HOR) mechanism in real Ni/YSZ porous anodes, the electrochemical properties as a function of hydrogen partial pressure p(H2) and water vapor pressure p(H2O) (dry, 1% - 60% humidity) at 973 K of a commercial anode-supported solid oxide fuel cell (SOFC) were measured. The impedance spectra from electrochemical impedance spectroscopy (EIS) measurement
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Synthesis and electrochemical properties of self-doped solid polymer electrolyte based on lithium 4-styrene sulfonate with BF3-THF Solid State Ionics (IF 3.107) Pub Date : 2021-02-05 Nam-Sook Kwon; Sang-Woog Ryu
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Defect energetics in the SrTiO3-LaCrO3 system Solid State Ionics (IF 3.107) Pub Date : 2021-02-05 Navaratnarajah Kuganathan; Federico Baiutti; Albert Tarancón; Jürgen Fleig; Alexander Chroneos
Oxide interfaces have attracted a huge amount of interest in recent years due to their novel functionalities that are not possible in bulk. Here we employ atomistic simulation techniques to study the defect properties and oxygen ion migration energy in bulk SrTiO3, LaCrO3 and SrTiO3–LaCrO3 interface. The SrO and La2O3 “Schottky-like” defects are found to be the most favourable intrinsic defects in
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Enhanced accuracy of electrochemical kinetic parameters determined by electrical conductivity relaxation Solid State Ionics (IF 3.107) Pub Date : 2021-02-02 Beom Tak Na; Tao Yang; Jian Liu; Shiwoo Lee; Harry Abernathy; Thomas Kalapos; Gregory Hackett
Electrical conductivity relaxation (ECR) is a widely adopted technique for determination of oxygen surface exchange coefficient (kchem) and chemical oxygen diffusivity (Dchem) of mixed ionic and electronic conductors (MIECs). However, it has been argued that the fitting process of determining two kinetic parameters from a single conductivity relaxation curve inevitably leads to high error in the determined
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Polybenzimidazole and ionic liquid composite membranes for high temperature polymer electrolyte fuel cells Solid State Ionics (IF 3.107) Pub Date : 2021-02-03 Bingbing Niu; Shijing Luo; Chunling Lu; Wendi Yi; Jiantao Liang; Shuang Guo; Deng Wang; Feng Zeng; Shichun Duan; Yang Liu; Lihua Zhang; Baomin Xu
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Non-stoichiometry, structure and properties of proton-conducting perovskite oxides Solid State Ionics (IF 3.107) Pub Date : 2021-02-03 Shuangbin Li; John T.S. Irvine
The demand for clean and sustainable energy has garnered great interest in new energy materials. Among them, high temperature proton-conducting perovskite oxides are, or can be widely used in clean energy applications (including fuel cells, electrochemical reactors, solid-state separators and supports of catalytic components via various reduction and oxidation reactions) in the intermediate temperature
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Functionalized gel polymer electrolyte membrane for high performance Li metal batteries Solid State Ionics (IF 3.107) Pub Date : 2021-02-03 Baichuan Han; Pengfeng Jiang; Shuai Li; Xia Lu
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Molecular dynamics simulations of lithium superionic conductor Li10GeP2S12 using a machine learning potential Solid State Ionics (IF 3.107) Pub Date : 2021-02-02 Kazutoshi Miwa; Ryoji Asahi
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Synthesis, crystal structure and ionic conductivity of MgAl2X8 (X = Cl, Br) Solid State Ionics (IF 3.107) Pub Date : 2021-01-28 Yasumasa Tomita; Ryo Saito; Makoto Morishita; Yohei Yamane; Yoshiumi Kohno
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Diffusivities and atomic mobilities in α-Y(O) and α-Y2O3 and their applications to oxidation of pure α-Y during the initial stage Solid State Ionics (IF 3.107) Pub Date : 2021-01-28 Tongdi Zhang; Sa Ma; Fangzhou Xing; Lijun Zhang
The atomic mobility descriptions for Y and O in both α-Y(O) and α-Y2O3 were first assessed by means of CALculation of PHAse Diagram approach based on the critically-reviewed diffusivities available in the literature. The diffusion anisotropy in α-Y(O) with hcp structure and the short-circuit diffusion in both α-Y(O) and α-Y2O3 were taken into account. Based on the assessed atomic mobilities together
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A facile synthesis of brown anatase TiO2 rich in oxygen vacancies and its visible light photocatalytic property Solid State Ionics (IF 3.107) Pub Date : 2021-01-27 Lihua Wang; Yandi Cai; Baochun Liu; Lin Dong
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Improvement of lithium ionic conductivity of Li3PS4 through suppression of crystallization using low-boiling-point solvent in liquid-phase synthesis Solid State Ionics (IF 3.107) Pub Date : 2021-01-26 Masakuni Takahashi; Seunghoon Yang; Kentaro Yamamoto; Koji Ohara; Nguyen Huu Huy Phuc; Toshiki Watanabe; Tomoki Uchiyama; Atsushi Sakuda; Akitoshi Hayashi; Masahiro Tatsumisago; Hiroyuki Muto; Atsunori Matsuda; Yoshiharu Uchimoto
Liquid-phase synthesis for solid electrolytes has received considerable attention owing to its shape control, with the potential to produce particles easily on a large scale, and its low cost and energy consumption. However, solid electrolytes prepared through liquid-phase synthesis have been shown to have lower ionic conductivity than solid electrolytes prepared through the mechanical milling method
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Oxygen semi-permeation properties of Ba1-xSrxFeO3-δ perovskite membranes Solid State Ionics (IF 3.107) Pub Date : 2021-01-24 E. Deronzier; T. Chartier; P.-M. Geffroy
This work is focused on the evaluation of oxygen semi-permeation performances of free cobalt perovskite membrane materials, Ba1-xSrxFeO3-δ perovskites. A wide range of Ba and Sr contents was studied. The best performances were obtained for Ba0.9Sr0.1FeO3-δ perovskite membranes with oxygen fluxes of 4.1 10−3 mol.m−2.s−1 at 850 °C. For a better understanding of the rate determining step of oxygen transport
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N, O co-doped urchin-like carbon microspheres as high-performance anode materials for lithium ion batteries Solid State Ionics (IF 3.107) Pub Date : 2021-01-23 Chunli Zhou; Dengke Wang; Hui Yang; Ang Li; Huaihe Song; Xiaohong Chen; Guanjie Xing; Huijing Yang; Haiyan Liu
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Defect structure and redox energetics of NdBaCo2O6-δ Solid State Ionics (IF 3.107) Pub Date : 2021-01-19 Dmitry S. Tsvetkov; Roman E. Yagovitin; Vladimir V. Sereda; Dmitry A. Malyshkin; Ivan L. Ivanov; Andrey Yu. Zuev; Antoine Maignan
The oxygen content in the double perovskite NdBaCo2O6-δ was measured as a function of oxygen partial pressure (1–10−5 atm) at different temperatures (623–1323 K) using thermogravimetry analysis (TG) and coulometric titration technique. The defect structure model of the oxide studied was proposed and successfully verified using the pO2 – T – δ data, yielding the enthalpies and entropies of the defect
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Cesium-doped layered Li1.2Mn0.54Ni0.13Co0.13O2 cathodes with enhanced electrochemical performance Solid State Ionics (IF 3.107) Pub Date : 2021-01-17 Lishuang Xu; Junxia Meng; Puheng Yang; Huaizhe Xu; Shichao Zhang
Lithium-rich layered cathode materials recently arouse highly attention for the high discharge capacities over conventional cathode materials, but trapped for severe voltage decay, poor cycling stability and inferior rate performance upon cycling. In this work, introducing Cs ions into the Li layer is employed to prepare Cs+-doped cathode material Li1.2Mn0.54Ni0.13Co0.13O2 via a simple sol-gel method
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Sulfur- and nitrogen-doped rice husk-derived C/SiOx composites as high-performance lithium-ion battery anodes Solid State Ionics (IF 3.107) Pub Date : 2021-01-13 Jinlong Cui; Yang Qiu; Haibang Zhang; Zhendong Yao; Wenyuan Zhao; Yunying Liu; Juncai Sun
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High performance of phosphorus and fluorine co-doped nickel-rich cathode material for lithium ion batteries Solid State Ionics (IF 3.107) Pub Date : 2021-01-13 Hao Tang; Wenwen Fu; Tian Xie; Long Tan; Runguang Sun
Nick-rich lithium metal oxides with the virtues of high capacity and relative low-cost are considered as the promising cathode materials for high energy lithium ion batteries (LIBs). Herein, the P and F ions are introduced to co-dope into the crystal structure of commercial LiNi0.6Co0.2Mn0.2O2 (NCM622) at transition-metal layers and oxygen sites, respectively. Thus, the lattice parameters of NCM622
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Effect of sintering temperature on the microstructure and conductivity of Na0.54Bi0.46Ti0.99Mg0.01O3-δ Solid State Ionics (IF 3.107) Pub Date : 2021-01-07 Rahul Bhattacharyya; Soumitra Das; Amit Das; Shobit Omar
The present work examines the effect of sintering temperature on the phase formation and the conductivity of Na0.54Bi0.46Ti0.99Mg0.01O3-δ. The formation of the secondary phase and the poor grain boundary conductivity are a few major concerns in this recently developed material. Polycrystalline bulk specimens are fabricated through conventional pressureless sintering at different temperatures of 930 °C
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The effects of local strain on the cubic Li7La3Zr2O12(001)/Li(001) interface: A first-principles study Solid State Ionics (IF 3.107) Pub Date : 2021-01-06 Xun Zhang; Wei Liu; Yi Yu
Cubic Li7La3Zr2O12 (c-LLZO) is considered as one of the promising electrolytes for all-solid-state lithium-ion batteries, owing to its high Li ionic conductivity and chemical stability against Li anode. The c-LLZO/Li interface, as a Li-ion transport structure which affects the charge-discharge cycle of Li metal batteries, remains to be fully understood at present, especially on the atomic-level. Here
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Chemical intercalation and electrochemical deintercalation of 2-aminoterephthalic acid into the layered titanoniobate HTiNbO5 Solid State Ionics (IF 3.107) Pub Date : 2021-01-05 Chris I. Thomas; Juho Heiska; Neha Garg; Maarit Karppinen
Layered titanoniobates are a versatile class of layered oxide materials and due to high theoretical capacities have been investigated for use in lithium batteries. Unfortunately, bulk titanoniobates often suffer from poor cycling performance or long charge/discharge durations especially during early cycling. Traditionally the materials have been synthesized as nanosheets, nanofibers or nanoparticles
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NMR and complex impedance study of ionic motion in new Rb0.4Bi0.6–xInxF2.2 solid solutions with fluorite-type structure Solid State Ionics (IF 3.107) Pub Date : 2021-01-02 A.B. Slobodyuk; V.Ya. Kavun; N.F. Uvarov; E.B. Merkulov; M.M. Polyantsev
Ion mobility and conductivity of Rb0.4Bi0.60–xInxF2.2 (x = 0, 0.05, 0.1, 0.15) solid solutions with fluorite structure have been investigated using 19F NMR, X-ray diffraction and impedance spectroscopy methods. Several types of fluoride ions in the solid solution composition were found by analyzing the 19F NMR spectra at 150 K. Attribution of fluoride ions to the specific sublattice was carried out
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Review of ZnO-based nanomaterials in gas sensors Solid State Ionics (IF 3.107) Pub Date : 2020-12-31 Yanli Kang; Feng Yu; Lu Zhang; Wenhao Wang; Long Chen; Yingchun Li
The release of toxic and harmful gases seriously endangers human health and social and environmental safety. Sensitive determination of these gases is urgently needed to meet the demands of people and society. ZnO-based gas sensors have been widely used due to fast response, low detection limit, high selectivity, reliable performance and low manufacturing cost. In this review, we highlight the possible
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Bi2V1-x(Mg0.25Cu0.25Ni0.25Zn0.25)xO5.5-3x/2: A high entropy dopant BIMEVOX Solid State Ionics (IF 3.107) Pub Date : 2020-12-30 A. Dziegielewska; M. Malys; W. Wrobel; S. Hull; Y. Yue; F. Krok; I. Abrahams
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Investigation of structure and cycling performance of Nb5+ doped high‑nickel ternary cathode materials Solid State Ionics (IF 3.107) Pub Date : 2020-12-17 Feng Tian; Yongzheng Zhang; Zhongzhu Liu; Robson de Souza Monteiro; Rogerio Marques Ribas; Peng Gao; Yongming Zhu; Hailong Yu; Liubin Ben; Xuejie Huang
Nickel-rich layered LiNi0.8Co0.1Mn0.1O2 is a promising cathode material due to its high specific capacity. However, commercial application of this material is impeded by its rapid capacity degradation associated with structural instability. In this work, 0.5–2 mol% Nb5+ doped LiNi0.8Co0.1Mn0.1O2 cathode material is prepared by heat treatment of a mixture of stoichiometric amounts of nano-sized Nb2O5
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Increasing the thermal expansion of proton conducting Y-doped BaZrO3 by Sr and Ce substitution Solid State Ionics (IF 3.107) Pub Date : 2020-12-16 Amir Masoud Dayaghi; Reidar Haugsrud; Marit Stange; Yngve Larring; Ragnar Strandbakke; Truls Norby
Proton conducting oxide electrolytes find potential application in proton ceramic fuel cells and electrolyzers operating at intermediate temperatures, e.g. 400–600 °C. However, state-of-the-art proton conducting ceramics based on Y-doped BaZrO3 (BZY) have lower thermal expansion coefficient (TEC) than most commonly applied or conceived supporting electrode structures, making the assembly vulnerable
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On the disintegration of copper electrodes and the transport of Cu+ ions in a sodium potassium borosilicate glass Solid State Ionics (IF 3.107) Pub Date : 2020-12-11 Ziria Herdegen; Martin Schäfer; Karl-Michael Weitzel
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Linear sweep and cyclic voltammetry of porous mixed conducting oxygen electrode: Formal study of insertion, diffusion and chemical reaction model Solid State Ionics (IF 3.107) Pub Date : 2020-12-10 C. Montella; V. Tezyk; E. Effori; J. Laurencin; E. Siebert
The classical 1D continuum model of oxygen exchange in a porous mixed conductor (bulk path) is presented in terms of Linear Sweep Voltammetry (LSV) and Cyclic Voltammetry (CV). We show that, from a formal point of view, it corresponds to an insertion, diffusion and chemical reaction mechanism. Some general rules for LSV/CV curves are established. Using a dimensionless description, we evidence eight
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PVDF-HFP/PMMA/TPU-based gel polymer electrolytes composed of conductive Na3Zr2Si2PO12 filler for application in sodium ions batteries Solid State Ionics (IF 3.107) Pub Date : 2020-12-10 Xinxin Wang; Zehua Liu; Yihua Tang; Jingjing Chen; Zhiyong Mao; Dajian Wang
Gel polymer electrolytes (GPEs) have attracted abundant attentions due to its higher ion conductivity and better compatibility with electrode than the inorganic solid-state electrolytes and safer than the liquid electrolytes. In this work, sodium conductive Na3Zr2Si2PO12 nanoparticles modified PVDF-HFP/PMMA/TPU-based GPEs are prepared and its application performances in sodium ions batteries (SIBs)
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Atomistic analysis of Li migration in Li1+xAlxTi2−x(PO4)3 (LATP) solid electrolytes Solid State Ionics (IF 3.107) Pub Date : 2020-12-08 Daniel Pfalzgraf; Daniel Mutter; Daniel F. Urban
We examine the ionic migration of Li in LATP [Li1+xAlxTi2−x(PO4)3] solid electrolytes from an atomistic viewpoint by means of density functional theory calculations. We vary the Al content and investigate its effects on the crystal structure of LATP and on the migration energy landscape of interstitial Li ions. The energy profiles governing the Li diffusion are found to be systematically influenced
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Co oxidation state at LSC-YSZ interface in model solid oxide electrochemical cell Solid State Ionics (IF 3.107) Pub Date : 2020-12-09 Fabrizio Gaulandris; Luise Theil Kuhn; Jakob Birkedal Wagner; Simone Sanna; Søren Bredmose Simonsen
Oxidation states of cations in a perovskite structure play an important role for conductivity in solid oxide electrochemical cells. For bulk materials oxidation states can be calculated for specific conditions, but is not well understood for micro−/nanostructured materials and at interfaces between materials. We present a fundamental study of interfaces between La0.6Sr0.4CoO3-δ (LSC) and yttria-stabilized
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Concurrent Ca2+ and Pb2+ ions transport in Ca6.25Pb4.25(VO4)7 with the β-Ca3(PO4)2-type structure Solid State Ionics (IF 3.107) Pub Date : 2020-12-07 V.A. Morozov; D.V. Deyneko; P.B. Dzhevakov; O.N. Leonidova; I.A. Leonidov; O.V. Baryshnikova; S.V. Savilov; B.I. Lazoryak
This paper describes a study of the nature and the mechanism of ion transfer in Ca6.25Pb4.25(VO4)7 with β-Ca3(PO4)2-type structure by the Tubandt method. The comparison of weight change to the quantity of electricity passed through the stack allowed us to state that migration of both Ca2+ and Pb2+ cations was present. The transference numbers were found to be 0.33 and 0.67 for Ca2+ and Pb2+ cations
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Enhanced reversible sodium storage by thin carbon layer encapsulated MoS2 nanospheres on interwoven carbon nanotubes Solid State Ionics (IF 3.107) Pub Date : 2020-12-05 Wenwen Lu; Jinqi Zhu; Shu-Ang He; Zhe Cui; Hao Wang; Chaoting Xu; Qian Liu; Rujia Zou
Here, an effective approach to obtain controllable thin carbon layer encapsulated MoS2 nanospheres on the surface of interwoven carbon nanotubes to form interconnected network structure of C-MoS2/CNTs composites is presented by a facile hydrothermal method. The remarkable electrochemical performance of the resulting composites as anode electrode materials are achieved for Na-ion energy storage systems
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Lithium ion sites and their contribution to the ionic conductivity of RLi2O-B2O3 glasses with R ≤ 1.85 Solid State Ionics (IF 3.107) Pub Date : 2020-12-06 Anne Ruckman; Graham Beckler; William Guthrie; Martha Jesuit; Makyla Boyd; Ian Slagle; Robert Wilson; Nathan Barrow; Nagia S. Tagiara; Efstratios I. Kamitsos; Steve Feller; Caio B. Bragatto
The ionic conductivity in lithium borate glasses RLi2O-B2O3 is believed to be related to the number of loose lithium ions, calculated using the topological constraint theory, increasing significantly when 0 ≤ R ≤ 0.5 and reaching a plateau when 0.5 ≤ R ≤ 1.0, and increasing once again when R ≥ 1.0. To test this new proposed approach, high content lithium oxide glasses were prepared (up to R = 1.85)
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Processing and conduction properties of Gd-doped ceria electrolytes with ZnO semiconductor Solid State Ionics (IF 3.107) Pub Date : 2020-11-26 Shifeng Xu; Jie Liu; Yongjun Zhou; Shu Yang; Rongyu Zhang; Xu Yang; Dan Xu
The objective of this work is to search for a new kind of electrolyte with enhanced performance to work for Solid Oxide Fuel Cells (SOFCs). ZnO which is one of the most important II-IV compound semiconductors is added to Ce0.8Gd0.2O1.9 (GDC) to improve the electrical properties of the electrolyte. The XRD results reveal that ZnO doesn't affect the XRD pattern of doped cerium. The structure is composed
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Lithium fluorinated sulfonimide-based solid polymer electrolytes for Li || LiFePO4 cell: The impact of anionic structure Solid State Ionics (IF 3.107) Pub Date : 2020-11-26 Bo Tong; Peng Wang; Qiang Ma; Huihai Wan; Heng Zhang; Xuejie Huang; Michel Armand; Wenfang Feng; Jin Nie; Zhibin Zhou
Solid polymer electrolytes (SPEs), comprising lithium fluorinated sulfonimide including Li[(FSO2)(RFSO2)N] (RF = n-CmF2m+1, m = 0 (LiFSI), 1 (LiFTFSI), 2 (LiFPFSI), and 4 (LiFNFSI)) and Li[(CF3SO2)2N] (LiTFSI) as conducting salt and poly(ethylene oxide) (PEO) as polymer matrix, are utilized for investigating the impact of anionic structure of lithium salt on the performances of rechargeable lithium
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Effect of salt concentration profiles on protrusion growth in lithium-polymer‑lithium cells Solid State Ionics (IF 3.107) Pub Date : 2020-11-25 Louise Frenck; Vijay D. Veeraraghavan; Jacqueline A. Maslyn; Alexander Müller; Alec S. Ho; Whitney S. Loo; Andrew M. Minor; Nitash P. Balsara
The formation of dendrites and other protrusions on lithium metal anodes is a subject of continued interest due to the potential to incorporate these anodes in next-generation rechargeable batteries with increased energy densities. Solid polymer electrolytes show improved stability against lithium metal compared to liquid carbonate electrolytes. We have studied the effect of salt concentration on the
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Hydration-induced chemical expansion of BaCa(1+y)/3Nb(2−y)/3O3−δ∙xH2O (BCN) and other proton-conducting perovskite oxides Solid State Ionics (IF 3.107) Pub Date : 2020-11-20 Vladimir V. Sereda; Dmitry S. Tsvetkov; Dmitry A. Malyshkin; Ivan L. Ivanov; Anton L. Sednev-Lugovets; Andrey Yu. Zuev
Thermal expansion and chemical strain caused by water uptake were measured for BaCa(1+y)/3Nb(2−y)/3O3−δ∙xH2O (BCN) perovskite-type oxides by dilatometric and X-ray diffraction methods. To describe the total and chemical expansion, we proposed a simple geometric chemical strain model based on the relative change in ionic radii upon hydration. The model calculations agree well with the experimental data
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An approximate solution of lithium ion diffusion process in spherical active particles with controllable error Solid State Ionics (IF 3.107) Pub Date : 2020-11-13 Wenjie Zhang; Liye Wang; Lifang Wang; Chenglin Liao
As an important supplementary part of experiment, multi-scale modeling and simulation plays an important role in reasonable design and performance prediction of lithium-ion batteries. Due to the complexity of spherical diffusion equation, the calculation error of Li-ion diffusion process in solid spherical active particles is an important factor restricting the accuracy of the simplified mechanism
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Two-lattice-vibration theory for proton transfer in cubic perovskites: Barium zirconate versus potassium tantalate Solid State Ionics (IF 3.107) Pub Date : 2020-11-13 Grégory Geneste
Proton transfer (PT) in proton-conducting oxides is an intrinsically quantum phenomenon, due to the very strong quantization of the OH stretching vibration (ℏω~ 0.4 eV). Up to high temperatures, the proton is frozen in the ground state associated with the OH stretching motion, and thus does not undergo the thermal agitation for this vibration. Therefore, these are the thermal fluctuations of the (heavier)
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Fabrication and characterization of co-fired metal-supported solid oxide fuel cells Solid State Ionics (IF 3.107) Pub Date : 2020-11-12 Na Xu; Duo Geng; Xiaofeng Tong; Mengzhen Sun; Zhanlin Xu
Metal (NiFe)-supported solid oxide fuel cells were prepared using the cost-effective tape casting, multilayer co-firing, and impregnation methods in this paper. MSC with Ni-YSZ as the functional anode, YSZ as the electrolyte and impregnated La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) as the cathode. The maximum power density reached 0.72 mW/cm2 at 750 °C and the polarization resistance was 0.20 Ω cm2. The complex
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Enhancing the electrochemical performances of Li7P3S11 electrolyte through P2O5 substitution for all-solid-state lithium battery Solid State Ionics (IF 3.107) Pub Date : 2020-11-11 Yayu Guo; Huilan Guan; Wenxiu Peng; Xuelei Li; Yue Ma; Dawei Song; Hongzhou Zhang; Chunliang Li; Lianqi Zhang
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Modelling of plutonium diffusion in (U,Pu)O2±x mixed oxide Solid State Ionics (IF 3.107) Pub Date : 2020-11-04 P. Chakraborty; C. Guéneau; A. Chartier
The modelling of the thermo-kinetic properties of uranium-plutonium mixed oxide (MOX) is of utmost importance for optimizing its synthesis and for predicting its behaviour in Fast Breeder Reactors. Despite the stakes and likely because of experimental issues, little or no experimental data are available for the entire MOX system. We circumvent here the difficulties by developing a mobility database
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Enhancing the electrochemical performance of Li-rich cathode material by a flexible precursor treatment method Solid State Ionics (IF 3.107) Pub Date : 2020-11-03 Meng Wang; Yongqiang Han; Mengxia Zhang; Mo Chu; Meng Liu; Yijie Gu
The Li1.2Mn0.54Ni0.13Co0.13O2 cathode material with excellent electrochemical properties was successfully prepared by treating precursor with KMnO4. The results indicated that KMnO4 treatment could depress Li+/Ni2+ cation mixing degree and extend c axis of the cathode material structure. Simultaneously, the formed spinel phase could improve cycling stability and provide 3D Li+ diffusion channels. The
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Experimental and mechanism research of gradient structured LiNi0.8Co0.1Mn0.1O2 cathode material for Li-ion batteries Solid State Ionics (IF 3.107) Pub Date : 2020-11-03 Peng Gao; Shan Wang; Zhihao Liu; Yunpeng Jiang; Weiwei Zhou; Yongming Zhu
NCM811 precursor with concentration gradients is prepared by adjusting the feeding method of MnSO4·H2O in the co-precipitation method. X-ray diffraction patterns show that the precursors have good crystal structure of β-Ni(OH)2. Energy dispersive X-ray spectroscopy shows that the precursor sample performs relatively gentle concentration gradient distributions and scanning electron microscope presents
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Fluoride shuttle batteries: On the performance of the BiF3 electrode in organic liquid electrolytes containing a mixture of lithium bis(oxalato)borate and triphenylboroxin Solid State Ionics (IF 3.107) Pub Date : 2020-11-02 Asuman Celik Kucuk; Toshiro Yamanaka; Takeshi Abe
In a typical organic liquid electrolyte-based fluoride shuttle battery (FSB), a high concentration of a boron-based anion acceptor (AA) capable of binding specific anions is required to provide a sufficient amount of dissolved fluoride salt. In this study, and a mixture of lithium bis(oxalato)borate (LiBOB) and an AA, triphenylboroxin (TPhBX), was used as an organic liquid electrolyte. The tetraglyme
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Effect of sintering temperature on Li diffusivity in Li0.29La0.57TiO3: Local hopping and long-range transport Solid State Ionics (IF 3.107) Pub Date : 2020-10-19 Tatiana Zinkevich; Björn Schwarz; Philipp Braun; Andre Weber; Helmut Ehrenberg; Sylvio Indris
The influence of sintering temperature on Li diffusivity was investigated for two Li0.29La0.57TiO3 samples sintered at 1400 °C and 1450 °C, respectively. Synchrotron radiation diffraction was used to get detailed insights into the crystal structure and the real structure and also into the subtle differences between the two samples. 7Li NMR relaxometry and 7Li PFG NMR were used to observe the local
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Electronic structure and sodium-ion diffusion in glaserite-type A3−хNa1+х(MoO4)2 (A = Cs, K) studied with first-principles calculations Solid State Ionics (IF 3.107) Pub Date : 2020-10-19 A.V. Serdtsev; D.V. Suetin; S.F. Solodovnikov; O.A. Gulyaeva; N.I. Medvedeva
Here we present an ab initio insight into the electronic structure and sodium diffusion in A3−хNa1+х(MoO4)2 with trigonal (A = Cs) and monoclinic (A = K) glaserite-type structures. Our DFT calculations predict the stability of К3−xNa1+x(МoO4)2 to high sodium content and a significantly smaller homogeneity region for Cs3−xNa1+x(МoO4)2 in accordance with experimental findings. These molybdates are wide-gap
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In situ electron microscopic observation of electrochemical Li-intercalation into MoS2 Solid State Ionics (IF 3.107) Pub Date : 2020-10-22 Kaname Yoshida; Tadahiro Kawasaki; Akihide Kuwabara; Yoshio Ukyo; Yuichi Ikuhara
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Tungstophosphoric acid-doped sulfonated poly(arylene ether nitriles) composite membranes with improved proton conductivity and excellent long-term stability Solid State Ionics (IF 3.107) Pub Date : 2020-10-23 Guo Lin; Zhongxiang Bai; Mangui Han; Kun Jia; Yumin Huang; Xiaobo Liu
A series of composite membranes based on sulfonated poly(arylene ether nitriles) (SPEN) with embedded tungstophosphoric acid (TPA) were prepared. The effect of TPA concentration on morphology, structure, thermal stability, mechanical strength, ion-exchange capacity and proton conductivity of SPEN-TPA composite membranes was studied in detailed. SEM images indicated the TPA were uniformly distributed
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Kinetic analysis of the second stage of the solid-phase synthesis of Li4Ti5O12 from a mechanically activated mixture of rutile and lithium carbonate Solid State Ionics (IF 3.107) Pub Date : 2020-10-23 Alexander V. Zhukov; Svetlana V. Chizhevskaya; Aleksei O. Merkushkin; Ye Ko Ko Htun
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A new high-capacity cathode for all-solid-state lithium sulfur battery Solid State Ionics (IF 3.107) Pub Date : 2020-10-23 Qing Wang; Ya Chen; Jun Jin; Zhaoyin Wen
A new composite sulfur cathode with high sulfur loading for all-solid-state lithium sulfur (LiS) battery, along with an in-situ coating process for preparing this composite cathode, is proposed in this manuscript. This composite cathode includes carbonized cotton fibers as the electron conductive skeleton, sulfide electrolyte coating on the carbon fibers as the Li-ion conductor, and elemental sulfur
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Transport mechanism of lithium ions in non-coordinating P(VdF-HFP) copolymer matrix Solid State Ionics (IF 3.107) Pub Date : 2020-10-27 Lena Mathies; Diddo Diddens; Dengpan Dong; Dmitry Bedrov; Hartmut Leipner
Polymer films based on poly(vinylidene difluoride-co-hexafluoropropylene) (P(VdF-HFP)) with different amounts of bis(trifluoromethane)sulfonimide lithium salt (LiTfSI) were prepared from acetone solution in a doctor blade casting machine under controlled and reproducible drying conditions. The modification of the copolymer-based layers show a significant enhancement of conductivity over several orders
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Surface analysis of lanthanum strontium cobalt oxides under cathodic polarization at high temperature through operando total-reflection X-ray absorption and X-ray fluorescence spectroscopy Solid State Ionics (IF 3.107) Pub Date : 2020-10-29 Yoichiro Tsuji; Shinnosuke Sako; Kiyofumi Nitta; Kentaro Yamamoto; Yang Shao-horn; Yoshiharu Uchimoto; Yuki Orikasa
The surface chemistry of perovskite-type lanthanum transition metal oxides is an important parameter in high-temperature electrochemical devices such as solid oxide fuel cells (SOFCs). Strontium segregation on the surface of lanthanum strontium cobalt oxides (LSC) may lead to poor oxygen reduction kinetics. However, previous studies have not sufficiently addressed the oxide surface chemistry, including
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Computational investigation of silicene/nickel anode for lithium-ion battery Solid State Ionics (IF 3.107) Pub Date : 2020-10-13 Alexander Y. Galashev
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Synthesis and crystal structure of fluorite-type La2.4Zr1.2Ta0.4O7: A precursor oxide for low temperature formation of garnet-type Li6.5La3Zr1.5Ta0.5O12 Solid State Ionics (IF 3.107) Pub Date : 2020-10-10 Naoki Hamao; Koichi Hamamoto; Noboru Taguchi; Shingo Tanaka; Junji Akimoto
In this study, we synthesized the solid solution system between La2Zr2O7 and La3TaO7 with a fluorite-type structure for the first time by the polymerized complex method and refined its crystal structural parameter using the Rietveld method. Furthermore, we synthesized a garnet-type Li-ion conductor by the precursor method which used a solid solution, La2+xZr2-2xTaxO7 (x = 0.4), as a precursor material
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Proton and deuteron electrodiffusion in a D263T borosilicate glass by controlled charge attachment from a fs-plasma Solid State Ionics (IF 3.107) Pub Date : 2020-10-07 Jan L. Wiemer; Sarah Mardeck; Carsten Zülch; Karl-Michael Weitzel
The femtosecond laser plasma charge attachment induced transport (fs-plasma CAIT) technique is considerably extended and applied to study ion transport in a borosilicate glass. The technique is based on attaching polarity selected charge carriers from a fs-laser to the front side of a sample, which induces transport of mobile charge carriers in this sample. The plasma-CAIT spectrometer is placed into
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