Banadium Redox Flow Battery
LIBETIRI TSA BOBELI – Kakaretso ea SYSTEMS SYSTEMS
ho tsoa ho MJ Watt-Smith, ... FC Walsh, ho Encyclopedia of Electrochemical Power Sources
Vanadium -vanadium redox flow battery (VRB)e ile ea qalisoa haholo ke M. Skyllas-Kazacos le basebetsi-’moho le eena ka 1983 Univesithing ea New South Wales, Australia. Hona joale theknoloji e ntse e ntlafatsoa ke mekhatlo e mengata e kenyeletsang E-Fuel Technology Ltd United Kingdom le VRB Power Systems Inc. Canada. Karolo e itseng ea VRB ke hore e sebelisa ntho e tšoanang ea lik'hemik'hale hoanode le cathode electrolyte. VRB e sebelisa libaka tse 'nè tsa oxidation tsa vanadium,' me ho hlakile hore ho na le banadium e le 'ngoe ea redox karolong e' ngoe le e 'ngoe ea sele. Banyalani ba V (II) - (III) le V (IV) - (V) ba sebelisoa ka har'a lisele tse mpe le tse ntle, ka ho latellana. Ka tloaelo, electrolyte e tšehetsang ke sulfuric acid (∼2-4 mol dm−3) 'me motsoako oa vanadium o ka har'a 1-2 mol dm-3.
Lits'ebetso tsa tefiso-ho ntša ho VRB li bontšoa ka maikutlo [I]–[III]. Nakong ea ts'ebetso, motlakase o bulehileng o atisa ho ba 1.4 V ho 50% ea boemo bo holimo le 1.6 V ho 100% ea boemo bo holimo. Li-electrode tse sebelisoang ho VRB hangata lilikhase tsa carbonkapa mefuta e meng ea porous, ea mahlakore a mararo ea carbon. Libetri tsa matla a tlase li sebelisitse li-electrode tse kopaneng tsa carbon-polymer.
Molemo o moholo oa VRB ke hore tšebeliso ea ntho e le 'ngoe ka bobeli ba halofo ea lisele e thusa ho qoba mathata a amanang le tšilafalo ea li-electrolyte tse peli tsa halofo ea lisele nakong ea tšebeliso ea nako e telele. Electrolyte e na le nako e telele ea bophelo mme litaba tsa ho lahla litšila lia fokotseha. VRB e boetse e fana ka matla a matla a matla (<90% ka lisebelisoa tse kholo), theko e tlaase bakeng sa bokhoni bo boholo ba polokelo, ntlafatso ea mekhoa e teng, le bophelo ba nako e telele ea potoloho. Mefokolo e ka bang teng e kenyelletsa litšenyehelo tse batlang li phahame tsa li-electrolyte tse thehiloeng ho vanadium hammoho le litšenyehelo le bophelo bo lekanyelitsoeng ba lera la ion-exchange.
Nako ea poso: May-31-2021