Betri ea Phallo ea Vanadium Redox
Libetri tsa Bobeli – Litsamaiso tsa Phallo Kakaretso
ho tsoa ho MJ Watt-Smith, … FC Walsh, ho Encyclopedia of Electrochemical Power Sources
Vanadium -betri ea phallo ea vanadium redox (VRB)e ile ea buloa haholo ke M. Skyllas-Kazacos le basebetsi-'moho le eena ka 1983 Univesithing ea New South Wales, Australia. Theknoloji ena hona joale e ntse e ntlafatsoa ke mekhatlo e 'maloa ho kenyeletsoa E-Fuel Technology Ltd e United Kingdom le VRB Power Systems Inc. e Canada. Tšobotsi e ikhethang ea VRB ke hore e sebelisa karolo e tšoanang ea lik'hemik'hale ka bobelianode le li-electrolyte tsa cathodeVRB e sebelisa maemo a mane a oxidation a vanadium, 'me ka ho khetheha ho na le banyalani ba redox ba vanadium ka har'a sele e 'ngoe le e 'ngoe ea halofo. Balekane ba V(II)–(III) le V(IV)–(V) ba sebelisoa liseleng tse hafshoang le tse ntle, ka ho latellana. Ka tloaelo, electrolyte e tšehetsang ke sulfuric acid (∼2–4 mol dm−3) 'me mahloriso a vanadium a pakeng tsa 1–2 mol dm−3.
Likarabelo tsa ho tjhaja le ho ntsha motlakase ho VRB li bontšoa ka liketso [I]–[III]. Nakong ea ts'ebetso, motlakase oa potoloho e bulehileng hangata ke 1.4 V ho boemo ba 50% ba tjhaja le 1.6 V ho boemo ba 100% ba tjhaja. Li-electrode tse sebelisoang ho VRB hangata keli-felt tsa khabonekapa mefuta e meng e nang le masoba, e nang le mahlakore a mararo a khabone. Libetri tse nang le matla a tlase li sebelisitse li-electrode tse kopaneng tsa khabone-polymer.
Molemo o moholo oa VRB ke hore tšebeliso ea karolo e le 'ngoe liseleng tse peli tse halofo e thusa ho qoba mathata a amanang le tšilafalo ea li-electrolyte tse peli tse halofo ea sele nakong ea tšebeliso ea nako e telele. Electrolyte e na le bophelo bo bolelele 'me mathata a ho lahla litšila aa fokotsoa. VRB e boetse e fana ka bokhoni bo phahameng ba matla (<90% lits'ebetsong tse kholo), litšenyehelo tse tlase bakeng sa bokhoni bo boholo ba polokelo, ntlafatso ea litsamaiso tse teng, le bophelo ba potoloho e telele. Meeli e ka bang teng e kenyelletsa litšenyehelo tse phahameng tsa motse-moholo tsa li-electrolyte tse thehiloeng ho vanadium hammoho le litšenyehelo le bophelo bo lekanyelitsoeng ba lera la phapanyetsano ea ion.
Nako ea poso: Mots'eanong-31-2021