With supports electrolyte membrane, and a support with the catalyst layer - the electrolyte membrane laminate

A low cost and and cause dimensional change hardly reinforcing material-electrolyte membrane, with supports electrolyte membrane, and a support with the catalyst layer - providing a membrane laminate. An electrolyte membrane 2 comprises a reinforcing member 3, the reinforcing member 3, at least two opposite side edges of at least four corners and / or the electrolyte membrane 2 of the outer edge 20 of the rectangular electrolyte membrane 2 of the outer edge 20 protruding outwardly from the part. Support with the electrolyte membrane 10 is provided with the electrolyte membrane 2, a portion 30 protruding from the electrolyte membrane 2 of at least reinforcing material 3, a first support member 4 frame-like arranged to cover at least one surface, a. With supports catalyst layer - the electrolyte layer stack 100 includes a support with the electrolyte membrane 10, the catalyst layer 5 disposed on both sides of the electrolyte membrane 2, a. .The 14