Membrane-electrode assembly and manufacturing method therefor

A membrane-electrode assembly comprising:

• a first electrode;
• a second electrode;
• and
• an electrolyte membrane between the first and second electrodes, wherein
• the first electrode comprises first and second electrode modules separable from each other
• the electrolyte membrane comprises first and second membrane modules separable from each other,
• the second electrode comprises third and fourth electrode modules separable from each other,
• the membrane-electrode assembly comprises first and second assembly modules separable from each other,
• the first assembly module comprises the first electrode module, the third electrode module, and the first membrane module between the first and third electrode modules,
• the second assembly module comprises the second electrode module, the fourth electrode module, and the second membrane module between the second and fourth electrode modules,
• the first membrane module has a first active region in contact with the first and third electrode modules and a first non-active region surrounding the first active region,
• the second membrane module has a second active region in contact with the second and fourth electrode modules and a second non-active region surrounding the second active region,
• the first assembly module further comprises,
• first and third sub-gasket modules disposed in the first non-active region of the first membrane module, the first and third sub-gasket modules surrounding the first and third electrode modules, respectively;
• a first gas diffusion module covering the first electrode module, the first electrode module being disposed between the first membrane module and the first gas diffusion module;
• and
• a third gas diffusion module covering the third electrode module, the third electrode module being disposed between the first membrane module and the third gas diffusion module,
• the second assembly module further comprises:
• second and fourth sub-gasket modules disposed in the second non-active region of the second membrane module, the second and fourth sub-gasket modules surrounding the second and fourth electrode modules, respectively,
• a second gas diffusion module covering the second electrode module, the second electrode module being disposed between the second membrane module and the second gas diffusion module;
• and
• a fourth gas diffusion module covering the fourth electrode module, the fourth electrode module being disposed between the second membrane module and the fourth gas diffusion module, and
• the membrane-electrode assembly further comprises:
• a first elastic gasket having first and second windows configured respectively to allow the first gas diffusion module and the second gas diffusion module to be exposed therethrough, the first elastic gasket being in contact with the first and second sub-gasket modules;
• and
• a second elastic gasket having third and fourth windows configured respectively to allow the third gas diffusion module and the fourth gas diffusion module to be exposed therethrough, the second elastic gasket being in contact with the third and fourth sub-gasket modules.