PEMFC的增湿技术

The Technology of Humidification of PEMFC

质子交换膜燃料电池(PEMFC)采用质子交换膜(PEM)作为电解质。由于质子交换膜需要一定的含水量以保持传导质子的能力,所以其增湿问题已经成为该领域研究的一个热点问题。本文对目前已采用的和正在研发的增湿技术进行了综述。其中,自增湿技术由于能够减少PEM燃料电池的外部辅助设备,从而减轻系统重量和体积、提高PEMFC的比特性而特别受到关注。

Polymer electrolyte membrane (PEM) is used as the electrolyte in polymer electrolyte membrane fuel cell (PEMFC).Presently,a large amount of work has been devoted to improve the performance of PEMFC to achieve their widespread applications,including the topic about humidifying technology for PEM in order to maintain the proton conductivity.In this article the humidifying methods that have been applied or in the process of study are reviewed.The method of self-humidifying has been paid more attention because it can predigest the external assistant equipments and reduce the weight and the volume of the cells.