Synthesis and characterization of Y2O3 doped Na–β″-Al2O3 solid electrolyte by double zeta process

Xu, Dong; Jiang, Hongyi; Li, Ming; Hai, Ou; Zhang, Yong

doi:10.1016/j.ceramint.2014.12.094

Cited by 24 publications

(15 citation statements)

References 28 publications

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“…The average fracture strength of the specimens with 0.2 wt% Sm 2 O 3 exceeded 200 MPa, while the fracture strength of the pure sample was only 130 MPa. In accordance with Figure C, the more uniform microstructure, smaller grain size and higher density can cause the higher fracture strength by the addition of 0.2 wt% Sm 2 O 3 . The fracture strength of the specimens decreased seriously when the amount of used Sm 2 O 3 dopant was more above 0.4 wt%.…”

Section: Resultssupporting

confidence: 76%

“…When the amount of Sm 2 O 3 was above 0.4 wt%, the ionic conductivity decreased considerably. Xu also reported a same trend when he used Y 2 O 3 as dopant. He showed that the optimal amount of Y 2 O 3 dopant is 0.5 wt%, for which the bending strength and conductivity were determined approximately 16% and 52% higher compared to the undoped samples, respectively.…”

Section: Resultsmentioning

confidence: 57%

“…The almost constant lattice parameters above 0.2 wt% Sm 2 O 3 indicates that Sm 2 O 3 almost dissolves into sodium beta alumina below this content . It is suggested that, above 0.2 wt% Sm 2 O 3 , only a part of Sm 3+ can diffuse into the sodium beta alumina crystal lattice and enter the spinel block on the way to stabilize the structure of the β″‐Al 2 O 3 phase and an excess Sm 2 O 3 will dissolve in solid solution or precipitate directly in the grain boundary …”

Section: Resultsmentioning

confidence: 99%

“…The activation energies of the specimens containing above 0.2 wt% Sm 2 O 3 increased dramatically (Table ). The low activation energy for the A2 sample can be attributed to the intergranular liquid phase, which can decrease the grain boundary resistance . The resistivity and activation energy decrease with increasing conversion to β″‐alumina.…”

Section: Resultsmentioning

confidence: 99%

“…So it is generally difficult to obtain the products with high values on both mechanical strength and ionic conductivity. Therefore, doping with certain oxides is supposed as an effective way to improve the properties of sodium beta alumina ceramic . However, the influence of Sm 2 O 3 on mechanical properties and ionic conductivity of sodium beta alumina electrolyte has not been reported yet.…”

Section: Introductionmentioning

confidence: 90%

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Investigation of Sm₂O₃ additive on mechanical and electrical properties of Li₂O‐ stabilized β″‐alumina electrolyte

Moghadam

2017

Int J Applied Ceramic Tech

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Li2O‐ stabilized β″‐alumina was synthesized by the double zeta process. The effect of Sm2O3 additive as the sintering aid, on microstructure, mechanical and electrical properties of Li2O‐ stabilized β″‐alumina ceramics was studied by means of X‐ray diffraction, field emission scanning electron microscope, biaxial flexure test and ionic conductivity measurement. The results indicated that both the fracture strength and the ionic conductivity of the sample containing 0.2 wt% Sm2O3 improved approximately 52% and 54%, respectively, that can be attributed to its higher density, higher amount of β″‐Al2O3 phase and more uniform microstructure.

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Section: Resultssupporting

confidence: 76%

Section: Resultsmentioning

confidence: 57%

Section: Resultsmentioning

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Section: Resultsmentioning

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Section: Introductionmentioning

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Investigation of Sm₂O₃ additive on mechanical and electrical properties of Li₂O‐ stabilized β″‐alumina electrolyte

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Inorganic all‐solid‐state sodium batteries (IASSSBs) are emerged as promising candidates to replace commercial lithium‐ion batteries in large‐scale energy storage systems due to their potential advantages, such as abundant raw materials, robust safety, low price, high‐energy density, favorable reliability and stability. Inorganic sodium solid electrolytes (ISSEs) are an indispensable component of IASSSBs, gaining significant attention. Herein, this review begins by discussing the fundamentals of ISSEs, including their ionic conductivity, mechanical property, chemical and electrochemical stabilities. It then presents the crystal structures of advanced ISSEs (e.g., β/β′′‐alumina, NASICON, sulfides, complex hydride and halide electrolytes) and the related issues, along with corresponding modification strategies. The review also outlines effective approaches for forming intimate interfaces between ISSEs and working electrodes. Finally, current challenges and critical perspectives for the potential developments and possible directions to improve interfacial contacts for future practical applications of ISSEs are highlighted. This comprehensive review aims to advance the understanding and development of next‐generation rechargeable IASSSBs.This article is protected by copyright. All rights reserved

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All‐solid‐state sodium batteries are particularly attractive for large‐scale energy storage and electric vehicles due to their exceptional safety, abundant resource availability, and cost‐effectiveness. The growing demand for all‐solid‐state sodium batteries underscores the significance of sodium solid electrolytes. However, the existed challenges of sodium solid electrolytes hinder their practical application despite continuous research efforts. Herein, we review recent advancements and the challenges for sodium solid electrolytes from material to battery level. The in‐depth understanding of their fundamental properties, synthesis techniques, crystal structures and recent breakthroughs are presented. Moreover, critical challenges on inorganic sodium solid electrolytes are emphasized, including the imperative need to enhance ionic conductivity, fortifying interfacial compatibility with anode/cathode materials, and addressing dendrite formation issues. Finally, potential applications of these inorganic sodium solid electrolytes are explored in all‐solid‐state sodium batteries and emerging battery systems, offering insights into future research directions.This article is protected by copyright. All rights reserved

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Synthesis and characterization of Y2O3 doped Na–β″-Al2O3 solid electrolyte by double zeta process

Cited by 24 publications

References 28 publications

Investigation of Sm₂O₃ additive on mechanical and electrical properties of Li₂O‐ stabilized β″‐alumina electrolyte

Investigation of Sm₂O₃ additive on mechanical and electrical properties of Li₂O‐ stabilized β″‐alumina electrolyte

Inorganic All‐Solid‐State Sodium Batteries: Electrolyte Designing and Interface Engineering

Inorganic Sodium Solid Electrolytes: Structure Design, Interface Engineering and Application

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Synthesis and characterization of Y2O3 doped Na–β″-Al2O3 solid electrolyte by double zeta process

Cited by 24 publications

References 28 publications

Investigation of Sm2O3 additive on mechanical and electrical properties of Li2O‐ stabilized β″‐alumina electrolyte

Investigation of Sm2O3 additive on mechanical and electrical properties of Li2O‐ stabilized β″‐alumina electrolyte

Inorganic All‐Solid‐State Sodium Batteries: Electrolyte Designing and Interface Engineering

Inorganic Sodium Solid Electrolytes: Structure Design, Interface Engineering and Application

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Product

Resources

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Investigation of Sm₂O₃ additive on mechanical and electrical properties of Li₂O‐ stabilized β″‐alumina electrolyte

Investigation of Sm₂O₃ additive on mechanical and electrical properties of Li₂O‐ stabilized β″‐alumina electrolyte