High-temperature polymer electrolyte membrane (HTM) fuel cell, HTM fuel cell installation, method for operating an HTM fuel cell and/or an HTM fuel cell installation

An HTM fuel cell installation, comprising an HTM fuel cell unit having structural components and being operable in at least one of an operating pressure up to 0.3 bar vacuum and a temperature higher than the boiling point of water and lower than at least one of the decomposition and the melting temperature of the structural components.

A method for operating an HTM fuel cell, which comprises at least one of:

• pressuring an HTM fuel cell stack between 0.3 and 5 bar absolute;
• and
• maintaining a temperature of the HTM fuel cell stack between 80° C. to 300° C.

A method for operating an HTM fuel cell installation, which comprises:

• providing a stack of HTM fuel cell units;
• and
• at least one of pressuring an HTM fuel cell stack between 0.3 and 5 bar absolute and maintaining a temperature of the HTM fuel cell stack between 80° C. to 300° C.

An HTM fuel cell installation, comprising an HTM fuel cell unit having at least one of a maximum temperature difference of no more than 30 K and a maximum pressure drop of no more than 150 mbar.

An HTM fuel cell installation, comprising an HTM fuel cell unit tolerating up to 10,000 ppm of carbon monoxide in a process gas.

An HTM fuel cell installation, comprising an HTM fuel cell unit using air as an oxidant and regulating a temperature of said HTM fuel cell unit with reaction air.

A method for operating an HTM fuel cell installation, which comprises including up to 10,000 ppm of carbon monoxide in a process gas.