Proton exchange membrane fuel cell

A proton exchange membrane fuel cell, comprising:

• a container, wherein the container comprises:
• an annular internal wall, wherein a reacting room is defined by the annular internal wall;
• an annular external wall surrounding the annular internal wall, wherein a storage room is defined between the annular internal wall and the annular external wall and divided into a fuel room and a waste room, the fuel room is in communication with the reacting room through a fuel inputting hole, and the waste room is in communication with the reacting room through a waste outputting hole;
• a bottom wall connecting the annular internal wall and the annular external wall;
• a top wall connecting the annular internal wall and the annular external wall, wherein a gas exchange hole is defined on the top wall;
• a fuel inputting door located on the fuel inputting hole;
• and
• a waste outputting door located on the waste outputting hole;
• and
• a membrane electrode assembly device located in the reacting room, wherein the membrane electrode assembly device defines a bellows and a pipe connected to the bellows and extending out of the reacting room, the reacting room is divided into a first electrode space outside the bellows and a second electrode space inside the bellows, volumes of the first electrode space and the second electrode space can be changed by deforming the bellows.