Vanadium Redox Flow Batteri
BATTERI ZA KABIRI - SYSTEMS ZIKURIKIRA
kuva MJ Watt-Smith,… FC Walsh, muri Encyclopedia y’amashanyarazi akomoka ku mashanyarazi
Vanadium–vanadium redox itemba (VRB)ahanini yatangijwe na M. Skyllas-Kazacos n'abo bakorana mu 1983 muri kaminuza ya New South Wales, Ositaraliya. Ubu ikoranabuhanga ririmo gutezwa imbere n’imiryango myinshi irimo E-Fuel Technology Ltd mu Bwongereza na VRB Power Systems Inc. muri Kanada. Ikintu cyihariye cya VRB nuko ikoresha ibintu bimwe byimiti muri byombianode na cathode electrolytes. VRB ikoresha leta enye za okiside ya vanadium, kandi nibyiza ko hariho redox couple ya vanadium muri buri gice cyakagari. V (II) - (III) na V (IV) - (V) abashakanye bakoreshwa mubice bitari byiza kandi byiza. Mubisanzwe, electrolyte ifasha ni acide sulfurike (∼2-4 mol dm - 3) kandi ubunini bwa vanadium buri hagati ya 1-2 mol dm - 3.
Amafaranga yishyurwa - gusohora muri VRB yerekanwa mubitekerezo [I] - [III]. Mugihe cyo gukora, umuyagankuba ufunguye-wumuzunguruko mubisanzwe ni 1.4 V kuri 50% ya reta-na-1,6 V kuri 100%-y-amafaranga. Electrode ikoreshwa muri VRBs mubisanzwekarubonecyangwa ubundi buryo bubi, uburyo butatu bwa karubone. Batteri yingufu zo hasi yakoresheje karubone - polymer composite electrode.
Inyungu nyamukuru ya VRB nuko ikoreshwa ryikintu kimwe muri selile zombi zifasha kwirinda ibibazo bijyana no kwanduzanya kwanduye selile ebyiri za selile mugihe cyo gukoresha igihe kirekire. Electrolyte ifite ubuzima burebure kandi ibibazo byo guta imyanda biragabanuka. VRB itanga kandi ingufu zingirakamaro (<90% mubikorwa binini), igiciro gito kubushobozi bunini bwo kubika, kuzamura sisitemu zihari, hamwe nubuzima burebure. Inzitizi zishoboka zirimo igiciro kinini cyo hejuru cya vanadium ishingiye kuri electrolytite hamwe nigiciro hamwe nubuzima buke bwa ion-guhana membrane.
Igihe cyo kohereza: Gicurasi-31-2021