Method for forming a gas-permeable and ion-permeable membrane

Details Method for forming a gas-permeable and ion-permeable membrane Method for forming a gas-permeable and ion-permeable membrane

1988-10-27

1989-09-12

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

2642888, 429 41, H01M 216, H01M 218

Patent

active

048659304

ABSTRACT:
A method for forming a gas-permeable and ion-permeable membrane comprising fully impregnating a porous ion-impermeable or non-conductive polymer substrate with an ion-conducting polymer material to form a composite and subsequently stretching the composite to re-form pores in the substrate. The resulting membrane comprises regions of the ion-conducting material juxtaposed to the gas-permeable pores formed in the substrate by the stretching process.

REFERENCES:
patent: 3953566 (1976-04-01), Gore
patent: 4187390 (1980-02-01), Gore
patent: 4620956 (1986-11-01), Hamer
patent: 4738904 (1988-04-01), Ludwig et al.
Penner et al., Ion Transporting Composite Membranes, J. Electrochem. Soc., Electrochemical Science and Technology, vol. 132 (1985), pp. 514-515.

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