Study on the Effect of Bolt Locking Method on the Deformation of Bipolar Plate in PEMFC
Assembly of the proton exchange membrane fuel cells (PEMFC) has a very important influence on its performance and efficiency. The various components of PEMFC stack are usually locked and fixed by bolts. Locking bolt will cause the deformation of the bipolar plate and the other components, which will affect directly the deformation degree of the integral parts of the PEMFC as well as the performance of PEMFC. This paper focuses on the object of three-cell stack of PEMFC. Finite element simulation is used to investigate the deformation of bipolar plate caused by quantity and layout of bolts, bolt locking pressure, and bolt locking sequence, etc. Finally, we made a conclusion that the optimal combination packaging scheme was adopted to assemble the fuel cell stack. The scheme was in use of 3.8 MPa locking pressure imposed on the fuel cell stack, type Ⅱ of four locking bolts and longitudinal locking method. The scheme was obtained by comparatively analyzing the overall displacement contour of PEMFC stack, absolute displacement curve of bipolar plate along the given three paths in the Z direction and the polarization curve of fuel cell. The research results are helpful for the fuel cell stack assembly.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1474345Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 612
 T. Fukutsuka, T. Yamaguchi, S. Miyano, Y. Matsuo, Y. Sugie, Z. Ogumi, “Carbon-coated stainless steel as pefc bipolar plate material,” Journal of power sources, vol. 174, no.1, pp. 199-205, 2007.
 K. Feng, Y. Shen, D. Liu, P. K. Chu, X. Cai, “Ni-Cr co-implanted 316l stainless steel as bipolar plate in polymer electrolyte membrane fuel cells,” International journal of hydrogen energy, vol.35, no. 2, pp. 690-700, 2010.
 P. Lin, P. Zhou, C. W. Wu, “A high efficient assembly technique for large pemfc stacks part I. Theory,” Journal of power sources, vol.194, no. 1, pp. 381-390, 2009.
 C. Carral, N. Charvin, H. Trouvé, P.mélé, “An experimental analysis of pemfc stack assembly using strain gage sensors,” International journal of hydrogen energy, vol. 39, no.9, pp. 4493 -4501, 2014.
 S. Lee, C. Hsu, C. Huang, “Analyses of the fuel cell stack assembly pressure,” Journal of power sources, vol.145, no. 2, pp. 353-361, 2005.
 D. Qiu, P. Yi, l. Peng, X. Lai, “Assembly design of proton exchange membrane fuel cell stack with stamped metallic bipolar plates,” International journal of hydrogen energy, vol. 40, no. 35, pp. 11559 -11568, 2015.
 D. H. Ahmed, H. J. Sung, J. Bae, “Effect of gdl permeability on water and thermal management in pemfcs-ii. Clamping force,” International journal of hydrogen energy, vol.33, no. 14, pp. 3786 -3800, 2008.
 P. Zhou, C. W. Wu, G. J. Ma, “Influence of clamping force on the performance of pemfcs,” Journal of power sources, vol.163, no. 2, pp. 874-881, 2007.
 A. Bazylak, D. Sinton, Z. S. Liu, N. Djilali, “Effect of compression on liquid water transport and microstructure of pemfc gas diffusion layers,” Journal of power sources, vol.163, no. 2, pp. 784-792, 2007.
 C. Wen, Y. Lin, C. Lu, “Experimental study of clamping effects on the performances of a single proton exchange membrane fuel cell and a 10-cell stack,” Journal of power sources, vol.192, no. 2, pp. 475-485, 2009.
 I. Gatto, F. Urbani, G. Giacoppo, O. Barbera, E. Passalacqua, “Influence of the bolt torque on pefc performance with different gasket materials,” International journal of hydrogen energy, vol. 36, no. 20, pp. 13043 -13050, 2011.
 S. Yim, B. Kim, Y. Sohn, Y. Yoon, G. Park, W. Lee, C. Kim, Y. C. Kim, “The influence of stack clamping pressure on the performance of pem fuel cell stack,” Current applied physics, vol. 10, no. 2, pp. s59-s61, 2010.
 P. Chippar, K. O, K. Kang, H. Ju, “A numerical investigation of the effects of gdl compression and intrusion in polymer electrolyte fuel cells (pefcs),” International journal of hydrogen energy, vol. 37, no. 7, pp. 6326-6338,2012.
 V. Radhakrishnan, P. Haridoss, “Effect of cyclic compression on structure and properties of a gas diffusion layer used in pem fuel cells,” International journal of hydrogen energy, vol. 35, no. 20, pp. 11107 -11118, 2010.
 C. Carral, P. Mélé, “A numerical analysis of pemfc stack assembly through a 3d finite element model,” International journal of hydrogen energy, vol.39, no. 9, pp. 4516-4530, 2014.
 X. Lai, D.A. Liu, l. Peng, J. Ni, “A mechanical-electrical finite element method model for predicting contact resistance between bipolar plate and gas diffusion layer in pem fuel cells,” Journal of power sources, vol. 182, no. 1, pp. 153-159, 2008.
 Chi-Hui Chien, Yao-Lun Hu, Ting-Hsuan Su, Hsuan-Ting Liu, Chung-Ting Wang, Ping-Feng Yang, Ying-xu lu, “Effects of bolt pre-loading variations on performance of gdl in a bolted pemfc by 3-d fem analysis,” Energy, vol.113, pp. 1174-1187, 2016.
 Jason Millichamp, Thomas J. Mason, tobias P. Neville, Natarajan rajalakshmi, Rhodri Jervis, Paul r. Shearing, Daniel j.l. Brett, “Mechanisms and effects of mechanical compression and dimensional change in polymer electrolyte fuel cells-a review,” Journal of power sources, vol.284, pp. 305-320, 2015.