Proton electrolyte membrane fuel cell with anti-freeze coolant and humidifiers

摘要

A fuel cell system comprising a closed coolant path within a fuel cell; a humidifier comprising a humidification fluid flow path and a fuel and air gas supply passage continuous in, through and out of the humidifier; the humidification fluid flow path and the fuel and air gas supply passage separated by a water permeable membrane that is impervious to organic materials allowing water from the humidification fluid flow path to enter the fuel and air gas supply passage; and the humidifier connected to the fuel cell by a humidified air and fuel passageway. The water permeable membrane can be a keggin ion pillared alpha-ZrP composite material. The coolant can be water and organic material mixture, such as glycol, thus allowing the coolant flow in temperatures below the freezing point.