Lithium ionic conductivity in LiI–Li2S–La2O2Sm (m=1, 2) composite electrolyte by solid state reaction

Abstract Li1.5Al0.5Ti1.5(PO4)3 (LATP) powders were prepared from different NO x -free precursors using an aqueous-based solution-assisted solid-state reaction (SA-SSR). The sintering behavior, phase formation, microstructure and ionic conductivity of the powders were explored as a function of sintering temperature. The powders showed a relatively narrow temperature windows in which shrinkage occurred. Relative densities of 95% were reached upon heating between 900 and 960 °C. Depending on the morphological features of the primary particles, either homogeneous and intact microstructures with fine grains of about <2 µm in size or a broad grain size distribution, micro-cracks and grain cleavages were obtained, indicating the instability of the microstructure. Consequently, the ceramics with a homogeneous microstructure possessed a maximum total ionic conductivity of 0.67 mS cm−1, whereas other ceramics reached only 0.58 mS cm−1 and 0.21 mS cm−1.

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Impact of Lithium Composition on Structural, Electronic and Optical Properties of Lithium Cobaltite Prepared by Solid-state Reaction

Journal of Scientific Research ◽

10.3329/jsr.v6i2.17900 ◽

2014 ◽

Vol 6 (2) ◽

pp. 217-231 ◽

Cited By ~ 21

Author(s):

F. Khatun ◽

M. A. Gafur ◽

M. S. Ali ◽

M. S. Islam ◽

M. A. R. Sarker

Keyword(s):

Optical Properties ◽

Solid State ◽

Ionic Conductivity ◽

Cathode Material ◽

Solid State Reaction ◽

Layered Crystal ◽

X Ray Diffraction ◽

X Ray ◽

Electronic And Optical Properties ◽

Lithium Cobaltite

The lithium-cobalt oxide LixCoO2 is a promising candidate as highly active cathode material of lithium ion rechargeable batteries. The crystalline-layered lithium cobaltite has attracted increased attention due to recent discoveries of some extraordinary properties such as unconventional transport and magnetic properties. Due to layered crystal structure, Li contents (x) in LixCoO2 might play an important role on its interesting properties. LiCoO2 crystalline cathode material was prepared by using solid-state reaction synthesis, and then LixCoO2 (x<1) has been synthesized by deintercalation of produced single-phase powders. Structure and morphology of the synthesized powders were investigated by X-ray diffraction (XRD), Infrared spectroscopy, Impedance analyzer etc. The influence of lithium composition (x) on structural, electronic and optical properties of lithium cobaltite was studied. Temperature dependent electrical resistivity was measured using four-probe technique. While LixCoO2 with x = 0.9 is a semiconductor, the highly Li-deficient phase (0.75 ? x ? 0.5) exhibits metallic conductivity. The ionic conductivity of LixCoO2 (x = 0.5 1.15) was measured using impedance spectroscopy and maximum conductivity of Li0.5CoO2 was found to be 6.5×10-6 S/cm at 273 K. The properties that are important for applications, such as ionic conductivity, charge capacity, and optical absorption are observed to increase with Li deficiency. Keywords: Calcination; Characterization; Inorganic compounds; Solid-State reaction; X-ray diffraction. © 2014 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.doi: http://dx.doi.org/10.3329/jsr.v6i2.17900 J. Sci. Res. 6 (2), 217-231 (2014)

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Increased Ion Conductivity in Composite Solid Electrolytes With Porous Co3O4 Cuboids

Frontiers in Materials ◽

10.3389/fmats.2021.697257 ◽

2021 ◽

Vol 8 ◽

Author(s):

Qiongyu Zhou ◽

Songli Liu ◽

Shiju Zhang ◽

Yong Che ◽

Li-Hua Gan

Keyword(s):

Solid State ◽

Ionic Conductivity ◽

Polymer Electrolyte ◽

Polymer Electrolytes ◽

Composite Polymer Electrolyte ◽

Composite Polymer ◽

Composite Electrolyte ◽

Base Interaction ◽

Solid State Batteries ◽

All Solid State Batteries

Compared with the fagile ceramic solid electrolyte, Li-ion conducting polymer electrolytes are flexible and have better contact with electrodes. However, the ionic conductivity of the polymer electrolytes is usually limited because of the slow segment motion of the polymer. In this work, we introduce porous Co3O4 cuboids to Poly (Ethylene Oxide)-based electrolyte (PEO) to investigate the influence of these cuboids on the ionic conductivity of the composite electrolyte and the performance of the all-solid-state batteries. The experiment results showed the porous cuboid Co3O4 fillers not only break the order motion of segments of the polymer to increase the amorphous phase amount, but also build Li+ continuous migration pathway along the Co3O4 surface by the Lewis acid-base interaction. The Li+ conductivity of the composite polymer electrolyte reaches 1.6 × 10−4 S cm−1 at 30°C. The good compatibility of the composite polymer electrolyte to Li metal anode and LiFePO4 cathode ensures good rate performance and long cycle life when applying in an all-solid-state LiFePO4 battery. This strategy points out the direction for developing the high-conducting composite polymer electrolytes for all-solid-state batteries.

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All-solid-state Li-metal batteries: role of blending PTFE with PEO and LiTFSI salt as a composite electrolyte with enhanced thermal stability

Sustainable Energy & Fuels ◽

10.1039/d0se00013b ◽

2020 ◽

Vol 4 (5) ◽

pp. 2229-2235 ◽

Cited By ~ 1

Author(s):

Deep A. Jokhakar ◽

Dhanya Puthusseri ◽

Palanisamy Manikandan ◽

Zheng Li ◽

Jooho Moon ◽

...

Keyword(s):

Thermal Stability ◽

Solid State ◽

Ionic Conductivity ◽

Solid Electrolytes ◽

Composite Electrolyte ◽

Solid State Batteries ◽

All Solid State Batteries ◽

Thermal Stability Of

Enhancing the ionic conductivity and thermal stability of solid electrolytes is crucial for the development of all-solid-state batteries.

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SYNTHESIS AND CHARACTERIZATION OF CERAMIC METAL Ni-YSZ PREPARED FROM LOCAL ZIRCON SAND AT VARIOUS Ni:YSZ COMPOSITION

ALCHEMY Jurnal Penelitian Kimia ◽

10.20961/alchemy.13.2.2384.217-229 ◽

2017 ◽

Vol 13 (2) ◽

pp. 217

Author(s):

Karima Apriany ◽

Fitria Rahmawati ◽

Eddy Heraldy ◽

Dani G Syarif ◽

Syoni Soepriyanto

Keyword(s):

Solid State ◽

Ionic Conductivity ◽

Solid State Reaction ◽

Impedance Analysis ◽

Xrd Analysis ◽

Solid State Reaction Method ◽

Cell Parameters ◽

Cubic Structure ◽

Zircon Sand ◽

Two Phases

This research synthesized a cermet Ni-YSZ, in which the YSZ (yttria stabilized-zirconia) was synthesized from the local zircon sand, ZrSiO4, as a side product of tin mining plant in Bangka island, Indonesia. The synthesized YSZ in this research is zirconia, ZrO2 doped by 8 % mol of yttrium dioxide. The synthesis used solid state reaction method and the result was characterized its crystal structure and its cell parameters by XRD analysis equipped with Le Bail refinement, surface morphology analysis, and an impedance analysis to understand its ionic conductivity. The cermet Ni-YSZ was synthesized at a various composition of Ni:YSZ i.e., 20:80, 30:70, and 40:60 (b/b). The analysis shows that Ni-YSZ is in two phases of Ni and YSZ without any presence of a third phase. It indicates that there was no solid state reaction between Ni and YSZ during synthesis. In this Ni-YSZ cermet, the Ni phase in a cubic structure, and the YSZ is also in a cubic structure. Morphological study shows that the addition of Ni to YSZ allows the morphology to become more roughness with larger grain size. This research found that the Ni-YSZ 20:80 has highest ionic conductivity.

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Synthesis, Sintering, and Electrical Properties ofBaCe0.9−xZrxY0.1O3−δ

Journal of Nanomaterials ◽

10.1155/2008/354258 ◽

2008 ◽

Vol 2008 ◽

pp. 1-5 ◽

Cited By ~ 9

Author(s):

S. Ricote ◽

G. Caboche ◽

C. Estournes ◽

N. Bonanos

Keyword(s):

Solid State ◽

Ionic Conductivity ◽

Electrical Properties ◽

Spark Plasma Sintering ◽

Solid State Reaction ◽

Plasma Sintering ◽

Conventional Sintering ◽

Spark Plasma

BaCe0.9−xZrxY0.1O3−δpowders were synthesized by a solid-state reaction. Different contents of cerium and zirconium were studied. Pellets were sintered using either conventional sintering in air at1700∘Cor the Spark Plasma Sintering (SPS) technique. The density of the samples sintered by SPS is much higher than by conventional sintering. Higher values of ionic conductivity were obtained for the SPS sample.

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Ionic Conductivity of Polycrystalline Li2GexSi1-xO3 (x = 0.0~1.0)

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.459.27 ◽

2010 ◽

Vol 459 ◽

pp. 27-31 ◽

Cited By ~ 2

Author(s):

Shinichi Furusawa ◽

Shun Enokida

Keyword(s):

Activation Energy ◽

Solid State ◽

Ionic Conductivity ◽

Solid State Reaction ◽

Arrhenius Equation ◽

Ionic Conduction ◽

Exponential Factor ◽

Temperature Range

Polycrystalline Li2GexSi1-xO3 (x = 0.0~1.0) was synthesized by solid state reaction, and its ionic conductivity was studied as a function of x in a temperature range of 500–700 K. The ionic conductivity was found to depend on x and was enhanced at x = 0.2–0.7. Furthermore, the pre-exponential factor and activation energy in the Arrhenius equation were also found to depend on x. These results suggest that lithium ionic conduction in Li2GexSi1-xO3 is strongly influenced by the structure of the framework.

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Tailoring the Activation Energy and the Ionic Properties of Bismuth co-doped SDC Powder Prepared by Solid State Reaction Method

10.21203/rs.3.rs-236828/v1 ◽

2021 ◽

Author(s):

Sandhya Kottooli ◽

N.S. Chitra Priya ◽

J.S. Revathy ◽

Deepthi N. Rajendran ◽

T. Praveen

Keyword(s):

Activation Energy ◽

Solid State ◽

Ionic Conductivity ◽

Solid State Reaction ◽

Structure Refinement ◽

Fluorite Structure ◽

Solid State Reaction Method ◽

Nyquist Plot ◽

Reaction Method ◽

Co Doped

Abstract Research on fuel cell components has received great attention owing to the growing need for sustainable energy sources. Bismuth (Bi 3+ ) co-doped samarium doped cerium oxide [Ce 1-x Sm x-y Bi y O 2-δ (x=0.2 and y=0, 0.05 and 0.1)] nanosystems were prepared by solid state reaction method. Rietveld structure refinement of X-ray diffraction pattern confirms the cubic fluorite structure along the (111) plane with the decrease in lattice distortion. At the same sintering temperature, pellets exhibit good morphology with better mechanical strength. The conductivity measurements carried out using the Nyquist plot, as well as the modulus spectra, indicate the effect of grain and grain boundary conduction at high temperatures. With the increase in the incorporation of Bi dopant, there is a gradual decrease in ionic conductivity and activation energy. The composition of Ce 0.8 Sm 0.1 Bi 0.1 O 2-δ exhibits less ionic conductivity compared to other samples due to the oxygen vacancies attracted by dopant cations. The effect of Bi 3+ dopants on samarium doped ceria lattice structures and the electrical properties of the systems has been discussed.

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