The third chapter of the second chapter is adopted to establish the model, analyzes the components of the electrode on microtubules SOFC the influence of residual stress and damage probability。Increasing the volume fraction of Ni in the anode, microtubules SOFC three layers structure of residual stress is greater。In addition, the volume fraction of LSM in the cathode changes for the influence of the microtubules SOFC three layer structure are small and can be ignored。With the increase of Ni volume fraction in the anode, the damage probability of anode, electrolyte and cathode increases, but because the changes in the whole risk of electrolyte and the cathode damage of maximum value is still less than 10-6, influence can be neglected

The fourth chapter mainly analyzes the anode, cathode and electrolyte, the thickness of the connection between the composite anode materials were summarized in Ni volume fraction changes their corresponding formula of the minimum thickness of anode, for microtubule structure design provides the theoretical guidance of SOFC。

Conclusion the full text is summarized。

Keywords: microtubules SOFC; electrode components; residual stress; failure probability; the minimum thickness of anode

目录

第一章  绪论 1

1。1 研究开发燃料电池的意义 1

1。2 燃料电池基础 2

1。2。1 燃料电池的特点 2

1。2。2 燃料电池的组成及工作原理 2

1。2。3 燃料电池的分类 3

1。2。4 燃料电池的性能 4

1。3 固体氧化物燃料电池(SOFC) 5

1。3。1 SOFC的优点 5

1。3。2 SOFC的工作原理 5

1。3。3 SOFC的基本结构型式及特征 6

1。4 微管式固体氧化物燃料电池（MT-SOFC) 8

1。4。1 MT-SOFC的优势 8

1。4。2 MT-SOFC的发展前景 8

1。5 国内外管式SOFC研究和开发的现状 9

第二章  微管SOFC二维轴对称模型的构建 11

2。1 建模理论依据 11

2。1。1 应力张量与应变张量间的函数关系 11

2。1。2 材料的力学性质 12

2。1。3 损伤几率分析 13

2。2 构建模型 14

2。2。1 模型构建及应用的四个阶段 15

2。2。2 构建模型的具体步骤 16

第三章  电极组分对微管SOFC残余应力及损伤几率的影响 24

3。1 研究的意义 24

3。2 电极组分对残余应力的影响 24

3。2。1 阳极中Ni体积分数对残余应力的影响 24

3。2。2 电解质厚度对残余应力的影响 27

3。2。3 阴极厚度对残余应力的影响 29

3。2。4 阴极材料中LSM体积分数对残余应力的影响 31

3。3 电极组分对损伤几率的影响