Batariyada Vanadium Redox Flow Battery-BATTERIES SECONDARY – NIDAAMKA SOCODKA | Dulmar

Vanadium Redox Flow Battery

BATARIYADA LABAAD - Dulmarka NIDAAMKA SOCODKA

ka MJ Watt-Smith, … FC Walsh, in Encyclopedia of Electrochemical Power Ilaha

vanadium-vanadium redox socodka batari (VRB)waxaa si weyn uga shaqeeyay M. Skyllas-Kazacos iyo asxaabtii 1983 ee Jaamacadda New South Wales, Australia. Tignoolajiyada hadda waxaa soo saaray dhowr hay'adood oo ay ka mid yihiin E-Fuel Technology Ltd ee Boqortooyada Ingiriiska iyo VRB Power Systems Inc. ee Kanada. Sifada gaarka ah ee VRB waa in ay ka shaqeyso curiye kiimiko oo isku mid ah labadabaanode iyo electrolytes cathode ah. VRB waxay isticmaashaa afarta gobol ee oksaydheynta ee vanadium, iyo sida ugu habboon waxaa jira hal dib-u-habeyn oo vanadium ah unug kasta oo nus ah. Labada lamaane ee V(II)–(III) iyo V(IV)–(V) ayaa loo adeegsadaa unugyada nuska ah ee xun iyo kuwa togan, siday u kala horreeyaan. Caadi ahaan, korantada taageerta waa sulfuric acid (~ 2-4 mol dm-3) iyo diiradda vanadium waxay ku jirtaa inta u dhaxaysa 1-2 mol dm-3.

Dareen-celinta lacag-bixinta ee VRB waxaa lagu muujiyey fal-celin [I]-[III]. Inta lagu jiro hawlgalka, danab-wareegga-furan caadi ahaan waa 1.4 V at 50% xaalad-lacageedka iyo 1.6 V 100% xaalad-lacageedka. Electrodes-ka loo isticmaalo VRB-yada waa caadidareen kaarboonama qaababka kale ee kaarboonka ee saddex-geesoodka ah, daloolsan. Baytariyada awoodda hoose waxay isticmaaleen kaarboon-polymer korantada isku dhafan.

Faa'iidada ugu weyn ee VRB waa in isticmaalka walxaha isku midka ah ee labada unug ee nuska ah ay caawiyaan in laga fogaado dhibaatooyinka la xiriira wasakheynta isku-dhafan ee labada unugga nuska ah ee elektrolytka inta lagu jiro isticmaalka muddada-dheer. Electrolyte-ku wuxuu leeyahay cimri dheer, arrimaha qashin-qubkana waa la yareeyaa. VRB waxay sidoo kale bixisaa waxtarka tamarta sare (<90% ee rakibaadaha waaweyn), qiimo jaban ee awoodaha kaydinta waaweyn, cusboonaysiinta nidaamyada jira, iyo nolosha meertada dheer. Xaddidaadaha suurtagalka ah waxaa ka mid ah kharashka raasumaalka ah ee ku salaysan vanadium elektrolytka oo ay weheliso kharashka iyo cimriga xaddidan ee xuubka-is-beddelka ion-ka.