Influence of powders thermal activation process on the production of planar β-alumina ceramic membranes

被引：16

作者：

Mercadelli, Elisa ^{[1
]}

Arico, Antonino Salvatore ^{[2
]}

Gondolini, Angela ^{[1
]}

Siracusano, Stefania ^{[2
]}

Ferraro, Marco ^{[2
]}

Antonucci, Vincenzo ^{[2
]}

Sanson, Alessandra ^{[1
]}

机构：

[1] CNR ISTEC, Via Granarolo 64, I-48018 Faenza, Italy

[2] CNR ITAE, Via Salita Santa Lucia Contesse 5, I-98126 Messina, Italy

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 696卷

关键词：

Beta-alumina; Boehmite; Electrolyte; Sodium-battery; Ceramic process; IONIC-CONDUCTIVITY; ENERGY-STORAGE; ELECTROLYTE; PRECURSORS; ZIRCONIA; TIO2;

D O I：

10.1016/j.jallcom.2016.12.079

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

ZEBRA batteries (Zero Emission Battery Research Activities) for their high energy and power density are one of the possible solutions to electrical storage for stationary applications. These systems are based on nickel chloride-sodium cells operating at high temperatures (about 270 degrees- 350 degrees C), and rely on a ceramic beta ''-alumina tube or planar membrane as solid electrolyte. The ceramic process needed to produce the membrane electrolyte has a key role in enhancing and adapt the battery performance to the specific requirements for stationary and mobile applications. Minimal variations in composition or processing strongly influence the final properties of the storage device. The aim of this work was to examine in detail the relevant steps needed to obtain ceramic b"-alumina membranes with suitable morphologicalstructural characteristics, from powder synthesis to planar electrolyte forming and sintering. In particular, the reactive sintering processes and the influence of thermal treatments on the chemical-structural properties of the ceramic materials were deeply investigated. It was found that a high temperature calcination is a key step to obtain membranes with suitable mass density, high b''-alumina content and optimum ionic conductivity. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：1080 / 1089

页数：10

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