中温固体氧化物燃料电池封接玻璃的研究进展

doi:10.15541/jim20140300

摘要/Abstract

摘要：

封接玻璃是中温固体氧化物燃料电池(IT-SOFC)的主要组成部分, 封接玻璃应同时具有适宜的热性能、化学性能、力学性能及与电池元件有良好的粘合能力, 防止SOFC在运行过程中气体的泄漏, 并保证玻璃在IT-SOFC工作温度及氧化气氛或燃料气氛下长期运行的热稳定性和封接玻璃与其它电池元件之间的界面稳定性。本文综述了关于IT-SOFC封接玻璃近十年的研究进展。从玻璃特性和封接玻璃与元件之间的界面反应的角度, 讨论封接玻璃的组分-结构-性能三者之间的关系, 提出了当前IT-SOFC封接玻璃研究的主要问题。

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关键词: 中温固体氧化物燃料电池, 封接玻璃, 玻璃特性, 界面反应

Abstract:

Sealing glass plays a crucial role in the intermediate temperature solid oxide fuel cell (IT-SOFC). A sealing glass should have a combination of desired thermal, chemical and mechanical properties and good adhesive ability with other cell’s components in order to prevent gas leakage during the working of the IT-SOFC. It has to be a long-term thermal stability and interface chemical stability with other cell’s components at the operating temperatures with an oxidizing or reducing atmospheres, respectively. In this paper, the research progress of the sealing glass in recent ten years was reviewed. From the point of the properties of sealing glass and the interfacial reactions with other cell’s components, relations of the composition-structure-property were discussed. Main problems on current research of sealing glass of IT-SOFC were put forward.

Key words: intermediate temperate solid oxide fuel cell, seal glass, glass property, thermal stability, interface reaction, review

中图分类号:

TQ174

罗凌虹, 余辉, 黄祖志. 中温固体氧化物燃料电池封接玻璃的研究进展[J]. 无机材料学报, 2015, 30(2): 113-121.

LUO Ling-Hong, YU Hui, HUANG Zu-Zhi. Research Progress of the Sealing Glass for Intermediate Temperature Solid Oxide Fuel Cell[J]. Journal of Inorganic Materials, 2015, 30(2): 113-121.

图/表 7

图1 B2O3/SiO2比值对SrO-La2O3-Al2O3-B2O3-SiO2玻璃的Tg与Ts的影响[18]

Fig. 1 Tg and Ts as a function of B2O3/SiO2 ratio in a SrO- La2O3-Al2O3-B2O3-SiO2 glass[18]

图2 (Na2O +K2O)/(CaO +MgO)摩尔比值对硅酸盐封接玻璃的Tg和Ts的影响[20]

Fig. 2 Variation of Tg and Ts with (Na2O+K2O)/(CaO+MgO) molar ratio in silicate glass composition[20]

图3 B2O3/SiO2对SrO-La2O3-Al2O3-B2O3-SiO2玻璃热膨胀系数的影响[31]

Fig. 3 CTE as a function of B2O3/SiO2 ratio in SrO-La2O3- Al2O3-B2O3-SiO2 glass [31]

图4 B2O3/SiO2对BaO-Ca-Al2O3-B2O3-SiO2玻璃析晶温度的影响[38]

Fig. 4 Devitrification temperature change with B2O3/SiO2 ratio in BaO-Ca-Al2O3-B2O3-SiO2 glasses[38]

图5 阳极的 (a)微观结构, (b) a区的EDS(绿色点Zr, 黄色为Ni, 红色为Si和(c)靠近电解质侧的EDS元素分析[49]

Fig. 5 (a) SEM image of the anode, (b)EDS pattern of the same region as in (a) (Zr is green, Ni is yellow, and Si is red). For clarity the element pattern for Al and Na have not been overlaid) and (c) EDS point analysis of the Na and Al containing silicate impurity closest to the electrolyte in (b) [49]

图6 G18玻璃与Crofer22 APU在850℃ 热处理1 h, 后在750℃ 处理24 h后的界面反应[57]

Fig. 6 Interfacial reactions between G18 sealing glass and stainless steel Crofer22 APU were joined with G18 through heat treatment at 850℃ for 1 h, followed by 750℃ for 24 h[57]

图7 玻璃/金属连接板的粘合界面形貌照片[60]

Fig. 7 Cross-section view of the glass/metal interface[60] (a) Without treatment, and (b) Crofer22 APU surface coated with MnCo2O4

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