MEMBRANE ELECTRODE ASSEMBLY WITH GAS DIFFUSION LAYER AND MANUFACTURING METHOD FOR MEMBRANE ELECTRODE ASSEMBLY WITH GAS DIFFUSION LAYER

To provide a technique of reducing the occurrence of stripping of a microporous layer from a gas diffusion layer. [0002] An MEA 2 with gas diffusion layer includes an MEA 1 and a gas diffusion layer 3. The MEA 1 includes an electrolyte membrane 11, a catalyst layer 13, and a subgasket 15. The gas diffusion layer 3 includes a gas diffusion layer base material 31 and a microporous layer 33. The microporous layer 33 is adhesively bonded to the gas diffusion layer base material 31 and located between the gas diffusion layer base material 31 and the catalyst layer 13. Power of adhesion of the microporous layer 33 to the gas diffusion layer base material 31 determined by a test under ISO 29862:2007 is equal to or greater than 40 g/25 mm.