Preparation and Characterization of Gradient Sealing Material for Sodium Anode Based Battery

doi:10.3724/SP.J.1077.2013.13082

Journal of Inorganic Materials ›› 2013, Vol. 28 ›› Issue (10): 1132-1136.DOI: 10.3724/SP.J.1077.2013.13082

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Preparation and Characterization of Gradient Sealing Material for Sodium Anode Based Battery

ZHANG Gao-Xiao, WEN Zhao-Yin, WU Xiang-Wei, ZHANG Jing-Chao

(Shanghai Enginering Research Center of Inorganic Energy Materials and Electric Power Sources, CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China)

Received:2012-02-15 Revised:2013-03-28 Published:2013-10-20 Online:2013-09-18
About author:ZHANG Gao-Xiao. E-mail: gxzhang@student.sic.ac.cn
Supported by:
National Science Foundation of China (NSFC) (50730001); 973 project of China (2007CB209700)

Abstract

Abstract: A functional gradient material (FGM) based sealing was designed and applied to seal the α-Al₂O₃insulator with Na-β-Al₂O₃ solid electrolyte of sodium anode batteries. FGMs with different component change rates were fabricated by powder stacking method. The experimental results indicated that the two dimensional feature of Na-β-Al₂O₃ grains greatly influenced the density of the α-Al₂O₃/Na-β-Al₂O₃ composite ceramics. It was demonstrated that the chemical diffusion of Na and Li in FGM diminished the interfaces among diffrent layers. Bending strengths of the FMGs reached (130(2), (180(3) and (225(2) MPa for the samples with component change rate of 20wt%, 10wt% and 5wt%, respectively. Moreover, the mechanical performance of the FGMs was rarely affected by heat treatment and thermal cycling, demonstrating its favorable mechanical and thermal stability.

Key words: sodium anode based battery, gradient sealing, bending strength

CLC Number:

TQ174

ZHANG Gao-Xiao, WEN Zhao-Yin, WU Xiang-Wei, ZHANG Jing-Chao. Preparation and Characterization of Gradient Sealing Material for Sodium Anode Based Battery[J]. Journal of Inorganic Materials, 2013, 28(10): 1132-1136.

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Preparation and Characterization of Gradient Sealing Material for Sodium Anode Based Battery

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