Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature
Patent
1997-02-14
1998-06-02
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
Having magnetic field feature
429105, 429249, 429 51, H01M 820
Patent
active
057597111
ABSTRACT:
The present invention provides a liquid-circulating battery including a positive electrode, a negative electrode, a permeable membrane interposed between the positive and negative electrodes to hold the same in separated relation to each other and to partition the same into a positive chamber and a negative chamber, two porous liquid-permeable carbon electrodes disposed respectively in the positive and negative electrolytic solutions being circulated respectively into the positive and negative chambers such that an oxidation-reduction reaction occurs and causes charging and discharging, wherein the permeable membrane is an ion-exchange me membrane including as an ion exchanger layer a polymeric pellicle which results from crosslinking of a halogenated alkylated product of an aromatic polysulfone type polymer with use of a polyamine and which has an ion exchange capacity of 0.3 to 8.0 milliequivalent/gram of dry resin and a thickness 0.1 to 120 .mu.m, said polysulfone type polymer having as a recurring unit a group represented at least by the following formula (I); and ##STR1## and wherein each of said positive and negative electrolytic solutions is an electrolytic solution having a vanadium ion concentration of 0.5 to 8 mols/liter.
REFERENCES:
patent: 4784924 (1988-11-01), Savinell
patent: 4786567 (1988-11-01), Skyllas-Kazacos et al.
patent: 5496659 (1996-03-01), Zito
Furusato Kouichi
Miyabayashi Mitsutaka
Nakajima Masato
Sato Kanji
Sekiguchi Sumie
Kashima-Kita Electric Power Corporation
Skapars Anthony
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