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US 4,414,090 AGranted
Separator membranes for redox-type electrochemical cells
AssigneeRAI Research Corporation
InventorsVincent F. D'Agostino, Joseph Y. Lee
Life of this patent
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Abstract
This disclosure is directed to improved redox type electrochemical cells, preferably those of the iron (+3)/iron (+2) electrolyte variety, incorporating polymeric, ion-exchange separator membranes produced by radiation grafting techniques.
Claims11
In an improved redox electrochemical cell incorporating two chemically-inert electrodes of opposite polarity, at least one aqueous acidic electrolyte, and a separator membrane between the adjacent electrodes, the improvement comprising a separator membrane formed from a polyolefin film grafted with a vinyl-substituted monomer via gamma irradiation.
Dependencies are inferred from the claim text.