Xie Jia-Miao; Li Jing-Yang; Zhou Jia-Yi; Hao Wen-Qian

doi:10.7498/aps.73.20241176

Abstract

The mechanical performance of solid oxide fuel cell is one of the main factors limiting its commercialization process. In order to reduce the degree of crack propagation in the cooling process and improve the stability and durability of the cell, the finite element analysis is conducted on a three-dimensional model of solid oxide fuel cell containing pre-crack. Utilizing the extended finite element method (XFEM) and fracture theory, and considering the stress distribution, length and maximum width after crack propagation and deflection angle of crack as criteria, this paper investigates the influence of various parameters, including working temperature, material properties, pre-crack angle, and pre-crack location, on pre-crack propagation behavior and proposes a solution based on material optimization and structural optimization to improve the stability of the cell. A pre-crack is set at the left boundary of the anode to analyze the influence of different operating conditions on the propagation of anode cracks in the cell. The correctness of finite element simulation is verified by comparing the simulation results with theoretical results of crack stress intensity factors in the same model. From the comprehensive analysis of the thermal stress of the cell, the crack length and maximum width after pre-crack propagation, and the two deflection angles of crack propagation, it can be seen that within the selected parameters, in order to ensure the stability of the cell and inhibit the degree of crack propagation, the operating temperature of the cell should not be lower than 1023 K, and the thermal expansion coefficient of anode should be less than 12.50×10^–6 K^–1. In addition, when the pre-crack angle is 45° or 0.45 mm away from the bottom of anode, the maximum width after crack propagation is the smallest, and the propagation path is the most predictable. In this case, the cell is affected by the smallest crack range and the highest stability. This research provides a guidance for suppressing crack propagation in solid oxide fuel cell, improving the lifetime and promoting the commercialization process of fuel cell.

Keywords:

Authors and contacts

Corresponding author: Hao Wen-Qian, wqhao@nuc.edu.cn

Funds: Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant Nos. 12102399, 12202407) and the Fundamental Research Program of Shanxi Province, China (Grant No. 20210302124263).

FullText HTML : translate this paragraph

References

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]
[26]
[27]
[28]
[29]
[30]
[31]
[32]
[33]
[34]
[35]

Cited By

DownLoad: Full-Size Img PowerPoint

材料属性		阳极 Ni-YSZ	电解质 YSZ	阴极 LSM
弹性模量 E/GPa	298 K	72.5	196.3	41.3
弹性模量 E/GPa	1073 K	58.1	148.6	48.3
泊松比 μ	298 K	0.36	0.31	0.33
泊松比 μ	1073 K	0.36	0.31	0.33
热膨胀系数 α/(10^–6 K^–1)	298 K	12.41	10.0	9.8
热膨胀系数 α/(10^–6 K^–1)	1073 K	12.60	10.5	11.8

DownLoad: CSV

步数	K_I/(MPa·$ \sqrt {\text{m}} $)			K_II/(MPa·$ \sqrt {\text{m}} $)			θ/(º)
步数	前人结果^[29]	本文结果	误差/%	前人结果^[29]	本文结果	误差/%	前人结果^[29]	本文结果	误差/%
初始	1.7394	1.7380	0.08	1.000	1.002	0.20	–0.7528	–0.7530	0.03
1	2.1129	2.1131	0.02	–0.6982	–0.6985	0.04	0.5442	0.5445	0.05
2	4.2294	4.2294	0	0.7843	0.7845	0.03	–0.5365	–0.5365	0
3	4.2843	4.2845	0.07	–0.6983	–0.6988	0.07	0.4596	0.4601	0.10
4	4.2254	4.2254	0	0.7370	0.7374	0.05	–0.4498	–0.4498	0
5	4.2779	4.2784	0.01	–0.5585	–0.5590	0.09	0.3123	0.3123	0
6	4.2528	4.2533	0.01	0.4764	0.4768	0.08	–0.2526	–0.2527	0.04

DownLoad: CSV

步数	K_I/(MPa·$ \sqrt {\text{m}} $)			K_II/(MPa·$ \sqrt {\text{m}} $)			θ/(º)
步数	前人结果^[29]	本文结果	误差 /%	前人结果^[29]	本文结果	误差 /%	前人结果^[29]	本文结果	误差 /%
初始	1.7803	1.7805	0.01	0.9857	0.9857	0	–0.7393	–0.7393	0
1	2.1168	2.1168	0	–0.7279	–0.7282	0.04	0.5593	0.5588	0.08
2	2.4731	2.4736	0.02	0.7963	0.7963	0	–0.5344	–0.5340	0.07
3	2.6760	2.6757	0.01	–0.8094	–0.8099	0.06	0.5110	0.5110	0
4	2.9802	2.9805	0.01	0.8856	0.8856	0	–0.5044	0.5048	0.08
5	3.3000	3.3000	0	–0.9070	0.9073	0.03	0.4759	0.4759	0
6	3.6713	3.6709	0.01	0.9229	0.9233	0.04	0.4441	0.4435	0.13

DownLoad: CSV

参数	298 K	1073 K
阳极热膨胀系数/(10^–6 K^–1)	12.00	12.60
	12.41	12.60
	12.50	13.13
	13.00	13.65

DownLoad: CSV

map

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]
[26]
[27]
[28]
[29]
[30]
[31]
[32]
[33]
[34]
[35]

[1]	Shen Shuang-Lin, Zhang Xiao-Kun, Wan Xing-Wen, Zheng Ke-Qing, Ling Yi-Han, Wang Shao-Rong. Study on extremely high temperature gradient at entrance of solid oxide fuel cell by preheating model. Acta Physica Sinica, 2022, 71(16): 164401. doi: 10.7498/aps.71.20220031
[2]	Wei Ning, Zhao Si-Han, Li Zhi-Hui, Ou Bing-Xian, Hua An-Ping, Zhao Jun-Hua. Effects of graphene size and arrangement on crack propagation of graphene/aluminum composites. Acta Physica Sinica, 2022, 71(13): 134702. doi: 10.7498/aps.71.20212203
[3]	Huang Kun, Wang Teng-Fei, Yao Ji. Nonlinear plate theory of single-layered MoS₂ with thermal effect. Acta Physica Sinica, 2021, 70(13): 136201. doi: 10.7498/aps.70.20210160
[4]	Xu Han, Zhang Lu. Influences of space charge layer effect on oxygen vacancy transport adjacent to three phase boundaries within solid oxide fuel cells. Acta Physica Sinica, 2021, 70(12): 128801. doi: 10.7498/aps.70.20210012
[5]	Liang Jin-Jie, Gao Ning, Li Yu-Hong. Effect of interstitial ${\left\langle {100} \right\rangle }$ dislocation loop on expansion of micro-crack in body centered cubic iron investigated by molecular dynamics method. Acta Physica Sinica, 2020, 69(11): 116102. doi: 10.7498/aps.69.20200317
[6]	Xu Han, Zhang Lu, Dang Zheng. Coupling mechanism of mass transport and electrochemical reaction within patterned anode of solid oxide fuel cell. Acta Physica Sinica, 2020, 69(9): 098801. doi: 10.7498/aps.69.20191697
[7]	Chen Mei-Na, Zhang Lei, Gao Hui-Ying, Xuan Yan, Ren Jun-Feng, Lin Zi-Jing. DFT+U calculation of Sm3+ and Sr2+ co-doping effect on performance of CeO2-based electrolyte. Acta Physica Sinica, 2018, 67(8): 088202. doi: 10.7498/aps.67.20172748
[8]	Jiang Yong, Yuan Xiao-Dong, Wang Hai-Jun, Liao Wei, Liu Chun-Ming, Xiang Xia, Qiu Rong, Zhou Qiang, Gao Xiang, Yang Yong-Jia, Zheng Wan-Guo, Zu Xiao-Tao, Miao Xin-Xiang. Effect of thermal annealing on damage growth of mitigated site on fused silica. Acta Physica Sinica, 2016, 65(4): 044209. doi: 10.7498/aps.65.044209
[9]	Lu Yong-Jun, Yang Yi, Wang Feng-Hui, Lou Kang, Zhao Xiang. Effect of continuously graded functional layer on curvature and residual stress of solid oxide fuel cell in initial reduction process. Acta Physica Sinica, 2016, 65(9): 098102. doi: 10.7498/aps.65.098102
[10]	Guo Liu-Yang, Chen Zheng, Long Jian, Yang Tao. Study on the effect of stress state and crystal orientation on micro-crack tip propagation behavior in phase field crystal method. Acta Physica Sinica, 2015, 64(17): 178102. doi: 10.7498/aps.64.178102
[11]	Liu Hua-Yan, Fan Yue, Kang Zhen-Feng, Xu Yan-Bin, Bo Qing-Rui, Ding Tie-Zhu. Preparation and characterization of the superlattice (Sm-doped ceria/yttria-stabilized zirconia)N electrolyte film. Acta Physica Sinica, 2015, 64(23): 236801. doi: 10.7498/aps.64.236801
[12]	Dong Gang, Liu Dang, Shi Tao, Yang Yin-Tang. Effects of thermal stress induced by mulitiple through silicon vias on mobility and keep out zone. Acta Physica Sinica, 2015, 64(17): 176601. doi: 10.7498/aps.64.176601
[13]	Wei Zhi, Jin Guang-Yong, Peng Bo, Zhang Xi-He, Tan Yong. Supercontinuum generation in photonic crystal fiber and tapered single-mode fiber. Acta Physica Sinica, 2014, 63(19): 194205. doi: 10.7498/aps.63.194205
[14]	Xu Jun, Xiao Xiao-Chun, Pan Yi-Shan, Ding Xin. Granular coal crack propagation study under uniaxial compression based on J integral. Acta Physica Sinica, 2014, 63(21): 214602. doi: 10.7498/aps.63.214602
[15]	Yang Hong-Dao, Li Xiao-Hong, Li Guo-Qiang, Yuan Chun-Hua, Tang Duo-Chang, Xu Qin, Qiu Rong, Wang Jun-Bo. Silicon surface microstructures created by 1064 nm Nd∶YAG nanosecond laser. Acta Physica Sinica, 2011, 60(2): 027901. doi: 10.7498/aps.60.027901
[16]	Shao Yu-Fei, Wang Shao-Qing. Quasicontinuum simulation of crack propagation in nanocrystalline Ni. Acta Physica Sinica, 2010, 59(10): 7258-7265. doi: 10.7498/aps.59.7258
[17]	Han Qi-Gang, Jia Xiao-Peng, Ma Hong-An, Li Rui, Zhang Cong, Li Zhan-Chang, Tian Yu. Finite element simulations of thermal-stress on cemented tungsten carbide anvil used in cubic high pressure apparatus. Acta Physica Sinica, 2009, 58(7): 4812-4816. doi: 10.7498/aps.58.4812
[18]	Chen Wei-Lan, Gu Pei-Fu, Wang Ying, Zhang Yue-Guang, Liu Xu. Analysis of the thermal stress in infrared films. Acta Physica Sinica, 2008, 57(7): 4316-4321. doi: 10.7498/aps.57.4316
[19]	XING XIU-SAN. THE STOCHASTIC FORMULATION OF MICROCRACKS EVOLUTION. Acta Physica Sinica, 1981, 30(12): 1615-1623. doi: 10.7498/aps.30.1615
[20]	TOUGHNESS GROUP, METAL PHYSICS. MEASUREMENT OF THE INITIATION OF CRACK PROPAGATION BY AN ELECTRICAL RESISTANCE METHOD. Acta Physica Sinica, 1976, 25(4): 344-351. doi: 10.7498/aps.25.344

Catalog

Vol. 73, Issue 23 - 2024-12-05

Metrics

Abstract views: 463
PDF Downloads: 27
Cited By: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

Search

Article

留言板

Abstract

Authors and contacts

Corresponding author: Hao Wen-Qian, wqhao@nuc.edu.cn

FullText HTML : translate this paragraph

References

Cited By

Catalog

Metrics

Authors

Referees

About Journal

About

Search

Article

留言板

Abstract

Authors and contacts

Corresponding author: Hao Wen-Qian, wqhao@nuc.edu.cn

FullText HTML : translate this paragraph

References

Cited By

Catalog

Metrics

Publishing process

Authors

Referees

About Journal

About