Performance improvement strategy for proton exchange membrane fuel cell

• Main Authors: LIU ZHIXIANG, ZHANG XUEXIA, DAI ZHAOHUA, LIU YOUXIAN, HAN ZHE, NIU ZHUO, LI QI, HE LI, CHEN WEIRONG, WANG YONG, ZHANG YUJIN
• Format: Patent
• Language: Chinese; English
• Published: 17.10.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention provides a performance improvement strategy for a proton exchange membrane fuel cell, and aims to improve the output performance of the proton exchange membrane fuel cell in the load operation process. The strategy is a method for reducing an air excess coefficient in short time and improving the electric pile performance, reducing an air stoichiometric ratio in short time from the normal state to the starvation state while the electric pile is normally operated, and recovering to the normal state. The method is capable of, through regulating the activity area and water content of the proton exchange membrane fuel cell, remarkably increasing the voltage of the proton exchange membrane fuel cell, and effectively improving the output performance, so the proton exchange membrane fuel cell is located in the high performance output state. The method is a simple and effective method for improving the output performance of the proton exchange membrane fuel cell. 本发明提出种质子交换膜燃料电池性能提高策略，其主旨在于提高质子交换膜燃料电池在带