초록 ▼

An electrochemical cell stack comprises a plurality of membrane electrode assemblies interposed between pairs of separator plates. The stack comprises adhesively bonded layers. Preferably each membrane electrode assembly is adhesively bonded to the adjacent pair of separator plates. The adhesive bon

An electrochemical cell stack comprises a plurality of membrane electrode assemblies interposed between pairs of separator plates. The stack comprises adhesively bonded layers. Preferably each membrane electrode assembly is adhesively bonded to the adjacent pair of separator plates. The adhesive bond between the plate and membrane electrode assembly preferably provides a substantially gas and liquid-tight seal around the perimeter of the electrochemically active area of the membrane electrode assembly and around any fluid manifold openings formed therein. Alternatively, or in addition, adjoining pairs of separator plates in an electrochemical cell stack may be adhesively bonded together. Such pairs of adhesively bonded plates may define cooling spaces between neighboring cells. Stacks comprising a plurality of individual cell modules may be formed, each module comprising a membrane electrode assembly bonded to a pair of separator plates.

대표청구항 ▼

1. An electrochemical cell comprising:a first separator plate; a second separator plate; a membrane electrode assembly interposed between said first and second separator plates, said membrane electrode assembly comprising a polymer electrolyte membrane interposed between first and second electrode l

1. An electrochemical cell comprising:a first separator plate; a second separator plate; a membrane electrode assembly interposed between said first and second separator plates, said membrane electrode assembly comprising a polymer electrolyte membrane interposed between first and second electrode layers; and a substantially gas and liquid impermeable adhesive bond formed between a portion of said membrane, said first and second electrodes, and each of said separator plates, wherein said adhesive bond is formed by an adhesive material, and wherein said membrane electrode assembly, said first and second separator plates, and said adhesive bond form a unitary structural unit.