Vanadium Redox Flow Ibhetri
IIBHETRI ZESIBINI – IINKQUBO ZOKUQHUBEKA Isishwankathelo
evela kuMJ Watt-Smith, … FC Walsh, kwiEncyclopedia yeMithombo yaMandla oMbane
I-vanadium -ibhetri ye-vanadium redox (VRB)ubukhulu becala yayingoovulindlela nguM. Skyllas-Kazacos kunye noogxa bakhe ngowe-1983 kwiYunivesithi yaseNew South Wales, eOstreliya. Ubuchwephesha ngoku buphuhliswa yimibutho emininzi equka i-E-Fuel Technology Ltd e-United Kingdom kunye ne-VRB Power Systems Inc. eCanada. Uphawu oluthile lweVRB kukuba isebenzisa into enye yeekhemikhali kuzo zombinii-anode kunye ne-cathode electrolytes. I-VRB isebenzisa imimandla emine ye-oxidation ye-vanadium, kwaye ngokufanelekileyo kukho isibini se-redox ye-vanadium kwisiqingatha seseli nganye. Izibini ze-V (II)–(III) kunye ne-V (IV)–(V) zisetyenziswa kwi-half-cell engalunganga kunye ne-positive, ngokulandelanayo. Ngokuqhelekileyo, i-electrolyte exhasayo i-asidi ye-sulfuric (∼2-4 mol dm-3) kwaye i-concentration ye-vanadium ikuluhlu lwe-1-2 mol dm-3.
Iimpendulo zentlawulo-ukukhupha kwi-VRB ziboniswa kwiimpendulo [I]–[III]. Ngethuba lokusebenza, i-voltage evulekileyo yesiphaluka ngokuqhelekileyo i-1.4 V kwi-50% ye-state-of-charge kunye ne-1.6 V kwi-100% ye-state-of-charge. Ii-electrodes ezisetyenziswa kwiiVRBs ziqhelekileIimvakalelo zekhabhoniokanye ezinye iiforomu, iifom ezintathu-dimensional zekhabhoni. Iibhetri zamandla asezantsi zisebenzisa i-carbon-polymer composite electrode.
Inzuzo enkulu ye-VRB kukuba ukusetyenziswa kwento enye kuzo zombini iiseli zesiqingatha kunceda ukuphepha iingxaki ezinxulumene nokungcoliswa komnqamlezo we-electrolyte yesiqingatha seeseli ngexesha lokusetyenziswa kwexesha elide. I-electrolyte inobomi obude kwaye imiba yokulahlwa kwenkunkuma iyancitshiswa. I-VRB iphinda inikeze amandla aphakamileyo aphezulu (<90% kwiifakelo ezinkulu), ixabiso eliphantsi kumandla amakhulu okugcina, ukuphuculwa kweenkqubo ezikhoyo, kunye nobomi bomjikelezo omde. Unyino olunokwenzeka lubandakanya iindleko eziphezulu zenkunzi ye-electrolytes esekwe kwe-vanadium kunye neendleko kunye nobomi obulinganiselweyo be-ion-exchange membrane.
Ixesha lokuposa: May-31-2021