A progress review on cold start methods and influence factors for automotive PEMFC system 2020-01-0852
This review presents comprehensive methods and influence factors of the research progress in solving the Proton Exchange Membrane Fuel Cells(PEMFC) system cold start problems with more than 100 patents, papers and reports. This may do some help for PEMFC system cold start from the point of practical utilization. This paper can be divided into six parts. Firstly, in introduction part, the recent achievements and goals will be summarized. Then, thanks to the cold start whole process includes PEMFC system shut down and cold start from subfreezing environment, so different actions or methods will be discussed based on system shutdown and cold start from subfreezing environment. Solutions and methods for fuel cell system shutdown are summarized into two categories: purge solution and keeping warm. In regard to the strategies for PEMFC system cold startup, different heating solutions are classified into self-heating strategies and auxiliary-heating heating depending on their heating sources. Solutions and strategies are compared and concluded based on the recent progress. Moreover, the whole process strategies will be concluded according to the relative researches. What’s more, the next part will review the main influence factors for PEMFC system cold start, including the stack, PEMFC system design as well as cold start control strategies. Finally, conclusion part will present the future work, such as improving the design and uniformity for the stack, avoiding components freezing in low temperature and so on. Hoping to be benefit to improve the automotive PEMFC system cold start ability and wide application of fuel cell power system.