Title (en) Redox flow cell battery with vanadium electrolyte and a polysulfone-based semipermeable membrane Title (de) Redox-Durchflusszellenbatterie mit vanadiumhaltigem Elektrolyten und einer semipermeablen Membran auf Basis eines Polysulfons Title (fr) Batterie redox à cellules à circulation comportant une membrane semiperméable à base d'un polysulfone et un électrolyte à vanadium Publication EP 0790658 A2 19970820 (EN) Application EP 97102318 A 19970213 Priority JP 3069096 A 19960219 Abstract (en) The present invention provides a liquid-circulating battery comprising: a positive electrode; a negative electrode; a permeable membrane interposed between said positive and negative poles to hold the same in separated relation to each other and to partition the same into a positive chamber and a negative chambers; two porous carbon electrodes of a liquid-permeable type disposed respectively in said positive and negative chambers; and positive and negative electrolytic solutions, said positive and negative electrolytic solutions being circulated respectively into said positive and negative chambers such that an oxidation-reduction reaction occurs and causes charging and discharging. Said permeable membrane is defined by the following requirement (a), and each of said positive and negative electrolytic solutions is defined by the following requirement (b): (a) an ion- exchange 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 0.8 (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 <CHEM> (b) an electrolytic solution having a vanadium ion concentration of 0.5 to 8 mols/liter. <IMAGE> IPC 1-7 H01M 8/18; H01M 2/16 IPC 8 full level C08J 5/22 (2006.01); H01M 2/16 (2006.01); H01M 8/02 (2006.01); H01M 8/04 (2006.01); H01M 8/18 (2006.01) CPC (source: EP US) H01M 8/0289 (2013.01 - EP US); H01M 8/188 (2013.01 - EP US); H01M 50/411 (2021.01 - EP US); Y02E 60/10 (2013.01 - EP); Y02E 60/50 (2013.01 - EP US) Cited by US9905875B2; CN104040775A; CN100466349C; EP1095419A4; US2014349160A1; US10256493B2; CN1312788C; EP1143546A4; CN102437349A; CN108461690A; US8753783B2; EP2490279A4; CN105009341A; EP3422452A4; US7879971B2; WO2011015875A1; US2014370404A1; EP2800194A4; EP3046174A1; CN107254058A; US9276282B2; US10868324B2; US6720107B1; US9005828B2; US9136554B2; WO2014099874A1; WO9965100A1; WO03003483A3 Designated contracting state (EPC) DE ES FR GB IT SE DOCDB simple family (publication) EP 0790658 A2 19970820; EP 0790658 A3 19980311; EP 0790658 B1 20001102; AU 1477997 A 19970828; AU 706224 B2 19990610; DE 69703399 D1 20001207; DE 69703399 T2 20010607; ES 2153611 T3 20010301; JP H09223513 A 19970826; US 5759711 A 19980602 DOCDB simple family (application) EP 97102318 A 19970213; AU 1477997 A 19970219; DE 69703399 T 19970213; ES 97102318 T 19970213; JP 3069096 A 19960219; US 80111597 A 19970214.