Membrane for a membrane-electrode unit of a fuel cell and production method

The invention relates to a membrane (30) for a membrane-electrode unit of a fuel cell having a quadrilateral shape with two parallel long sides (38) and two opposing short sides (32), which can be produced using the following steps in the specified order: providing a continuous membrane (39) wherein the edges of the continuous membrane (39) form the long sides (31) of the membrane (30); and finishing the continuous membrane (30) using two cuts, a.) a first cut executed at a first angle (alpha) to the extension direction and forming a first cut edge (34), and b.) a second cut executed at a second angle (beta) to the extension direction and forming a second cut edge (35), wherein the first cut edge (34) and the second cut edge (35) form the short sides (32) of the membrane (30), and the first and/or second angle (alpha, beta) is different from 90DEG. According to the invention, at least one angle (alpha) enclosed by a short side (32) and an adjacent long side (31) is different from 90DEG. 本发明涉及种用于燃料电池的膜-电极-单元的膜