质子交换膜燃料电池电堆水传输机理综述

Review on Water Transport Mechanism of Proton Exchange Membrane Fuel Cell Stack

质子交换膜燃料电池是一种直接将储存在H2的化学能经与O2反应转化成电能、热能和水的电化学装置。它不受卡诺循环的限制,转化效率高,可以长时间连续运行,具有运行温度低、功率密度高、响应快、启动快、稳定性好以及当使用纯氢气时不会造成环境污染等特点,是未来汽车的理想动力装置之一。合适的湿度条件是燃料电池健康高效运行的必要条件,本文针对水在燃料电池内的传输问题进行综述归纳,为燃料电池内的水传输问题建立研究基础。

Proton exchange membrane fuel cell is an electrochemical device that directly converts the chemical energy stored in H2 into electrical energy,thermal energy and water by reacting with O2.It is not limited by Carnot cycle,has high conversion efficiency and can operate continuously for a long time.It has the characteristics of low operating temperature,high power density,fast response,fast start-up,good stability and no environmental pollution when using pure hydrogen.It is one of the ideal power devices for cars in the future.Appropriate humidity conditions are necessary for the healthy and efficient operation of fuel cells.This paper summarizes the water transport in fuel cells,and establishes a research foundation for the water transport in fuel cells.