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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 separate

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 α-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.

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1. A proton electrolyte membrane (PEM) fuel cell system, comprising: a fuel cell comprising a closed coolant path; 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

1. A proton electrolyte membrane (PEM) fuel cell system, comprising: a fuel cell comprising a closed coolant path; 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; the humidifier connected to the fuel cell by a humidified air and fuel passageway. 2. The fuel cell system of claim 1 wherein the closed coolant path further comprises a coolant pump. 3. The fuel cell system of claim 1 wherein the closed coolant path further comprises a heat exchanger. 4. The fuel cell system of claim 1 wherein the closed coolant path further comprises coolant that comprises water and organic components and has a freezing point below water. 5. The fuel cell system of claim 1 wherein the fuel cell system is a fuel cell stack. 6. The fuel cell system of claim 1 wherein the water permeable membrane is a keggin ions pillared α-ZrP composite material. 7. The fuel cell system of claim 1 wherein the water permeable membrane is a polymer. 8. The fuel cell system of claim 1 wherein the water permeable membrane is an inorganic polymer. 9. A system to cool and humidify a proton electrolyte membrane (PEM) fuel cell system configured to operate at below the freezing temperature of water, comprising the steps of: cooling the fuel cell in a closed coolant path using a coolant that comprises water and organic components and has a freezing point below water; humidifying fuel cell fuel and air comprising the steps of: flowing a coolant that comprises water and organic components and has a freezing point below water through a humidification fluid flow path within a humidifier; flowing fuel and air in, through and out of the humidifier through a fuel and air gas supply passage; separating the humidification fluid flow path and the fuel and air gas supply passage with 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 connecting the fuel cell and the humidifier by a humidified air and fuel passageway. 10. The method of claim 9 wherein the closed coolant path further comprises the step of pumping coolant through the closed coolant path. 11. The method of claim 9 wherein the closed coolant path further comprises the step of exchanging heat from the coolant to the atmosphere using a heat exchanger. 12. The method of claim 9 wherein the closed coolant path further comprises coolant that comprises water and organic components and has a freezing point below water. 13. The method of claim 9 wherein the fuel cell system is a fuel cell stack. 14. The method of claim 9 wherein the water permeable membrane is a keggin ions pillared α-ZrP composite material. 15. The method of claim 9 wherein the water permeable membrane is a polymer. 16. The method of claim 9 wherein the water permeable membrane is an inorganic polymer.