2019, Volume 21, Issue 3
Strategic Study of CAE >> 2019, Volume 21, Issue 3 doi: 10.15302/J-SSCAE-2019.03.002
Technological Approaches to Increasing Specific Power of Vehicular Fuel Cell Stacks
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
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Abstract
As a type of new energy vehicle, fuel cell vehicle has attracted increasing attention because of its long driving distance, high power performance, fast fuel filling, and compatibility with renewable energies. Fuel cell stack is the core of a fuel cell vehicle, and specific power indicates the technical level of a fuel cell stack. Using a high-specific-power fuel cell stack technology, the number of stack hardware can be reduced, so the cost of stacks can be significantly lowered. The most advanced fuel cell stack can provide high power in a limited vehicular space owing to its high specific power. However, the specific power of stacks in China still lags behind the advanced level in the world. In this paper, the technical approaches to improving the specific power of the fuel cell stack are discussed, from the aspects of highly active catalyst, enhanced composite proton exchange membrane, high disturbance flow field, conductive and corrosion-resistant thin-metal bipolar plates, as well as assembly and consistency of stacks. Based on the accumulation of theories and from practices, the relevance between the activation/ohmic/mass transfer polarization of fuel cells and materials/components/assembly is analyzed, which provides a reference for further improving the performance and specific power of fuel cell stacks.
Keywords
fuel cell vehicle ; fuel cell stack ; performance ; specific power
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References
[ 1 ] Nie Y, Li L, Wei Z D. Recent advancements in Pt and Pt-free catalysts for oxygen reduction reaction [J]. Chemical Society Reviews, 2015, 44(8): 2168–2201. link1
[ 2 ] Stamenkovic V, Markovic N. Oxygen reduction on platinum bimetallic alloy catalysts [C]. Vielstich, Wolf, Handbook of Fuel Cells. Hobken: John Wiley & Sons Ltd., 2009. link1
[ 3 ] Stamenkovic V, Mun B S, Mayrhofer K J J, et al. Changing the activity of electrocatalysts for oxygen reduction by tuning the surface electronic structure [J]. Angewandte Chemie International Edition, 2006, 45: 2897–2901. link1
[ 4 ] Chen C, Kang Y, Huo Z, et al. Highly crystalline multimetallic nanoframes with three-dimensional electrocatalytic surfaces [J]. Science, 2014, 343(6177): 1339–1343. link1
[ 5 ] Cao L S, Jiang S F, Qin X P, et al. Preparation of monodispersed ultra-small PtCu alloy with remarkable electrocatalytic performance [J]. Scientia Sinica Chimica, 2017, 47: 683–691. Chinese link1
[ 6 ] Zhang H J, Zeng Y C, Cao L S, et al. Enhanced electrocatalytic performance of ultrathin PtNi alloy nanowires for oxygen reduction reaction [J]. Fronts Energy, 2017, 11(3): 260–267. link1
[ 7 ] Bahar B, Hobson A R, Kolde J A. Composite membrane for use in electrolytic processes and separations comprises microporous polymeric sheet and ion exchange material occluding micropores of polymeric sheet to give impermeability to fluids: US, AU9731163-A [P].1997-02-04.
[ 8 ] Liu F Q, Yi B L, Xing D M, et al. Nafion/PTFE composite membranes for fuel cell applications [J]. Journal of Membrane Science, 2003, 212: 213–223. link1
[ 9 ] Liu Y H, Yi B L, Shao Z G, et al. Carbon nanotubes reinforced nafion composite membrane for fuel cell applications [J]. Electrochemical and Solid-State Letters, 2006, 9(7): A356-A359. link1
[10] Zhao D, Yi B L, Zhang H M, et al. Cesium substituted 12-tungstophosphoric (CsxH3−xPW12O40) loaded on ceriadegradation mitigation in polymer electrolyte membranes [J]. Journal of Power Sources, 2009, 190: 301–306. link1
[11] Yao Y F, Liu J G, Liu W M, et al. Vitamin Eassisted polymer electrolyte fuel cells [J]. Energy & Environmental Science, 2014, 7: 3362–3370. link1
[12] Brady M P, Wang H, Yang B, et al. Growth of Cr-Nitrides on commercial Ni–Cr and Fe–Cr base alloys to protect PEMFC bipolar plates [J]. Hydrogen Energy, 2007, 32: 3778–3788. link1
[13] Fu Y, Hou M, Lin G Q, et al. Coated 316L stainless steel with CrxN film as bipolar plate for PEMFC prepared by pulsed bias arc ion plating [J]. Journal of Power Sources, 2008, 176: 282–286. link1
[14] Fu Y, Lin G Q, Hou M, et al. Carbon-based films coated 316L stainless steel as bipolar plate for proton exchange membrane fuel cells [J]. Hydrogen Energy, 2009, 34: 405–409. link1
[15] Huang N B, Yi B L, Liang C H, et al. Electrochemical behavior of polyaniline coated stainless steel in simulated proton exchange membrane fuel cell environment [J]. Power Technology, 2007, 31: 217–219.
[16] Zhang H B, Lin G Q, Hou M, et al. CrN/Cr multilayer coating on 316L stainless steel as bipolar plates for proton exchange membrane fuel cells [J]. Journal of Power Sources, 2012, 198: 176–181. link1
[17] Kim J Y, Luo G, Wang C Y. Modeling two-phase flow in three-dimensional complex flow-fields of proton exchange membrane fuel cells [J]. Journal of Power Sources, 2017, 365: 419–429. link1
[18] Yi B L. Fuel cells—Principle, technology and application [M]. Beijing: Chemical Industry Press, 2003. Chinese
[19] Hou M, Yi B L. The key technologies for fuel cells [J]. Science and Technology Review, 2016, 34(6): 52–61. Chinese link1
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