Vanadium Redox Kuyerera Bhatiri
Mabhatiri Echipiri - Ongororo yeFlow Systems
kubva kuna MJ Watt-Smith, ... FC Walsh, muEncyclopedia of Electrochemical Power Sources
Vanadium -bhatiri rekuyerera kwevanadium redox (VRB)Yakatangwa zvakanyanya naM. Skyllas-Kazacos nevamwe vake muna 1983 paYunivhesiti yeNew South Wales, Australia. Tekinoroji iyi iri kugadzirwa nemasangano akati wandei anosanganisira E-Fuel Technology Ltd muUnited Kingdom neVRB Power Systems Inc. muCanada. Chimwe chinhu chakakosha cheVRB ndechekuti inoshandisa chinhu chimwe chete chemakemikari mune ese ari maviri.anode uye cathode electrolytesVRB inoshandisa mamiriro mana e oxidation evanadium, uye zvakanaka kuti pave ne redox couple imwe chete yevanadium muhafu yega yega yemasero. Ma V(II)–(III) uye V(IV)–(V) couples anoshandiswa muhafu yemasero isina kunaka neyakanaka, zvichiteerana. Kazhinji, electrolyte inotsigira i sulfuric acid (∼2–4 mol dm−3) uye huwandu hwevanadium huri pakati pe1–2 mol dm−3.
Maitiro ekuchaja-kuburitsa magetsi muVRB anoratidzwa mumaitiro [I]–[III]. Munguva yekushanda, voltage ye open-circuit inowanzo kuve 1.4 V pa 50% state-of-charge uye 1.6 V pa 100% state-of-charge. Ma electrodes anoshandiswa muVRB anowanzo kuvemafelt ekabhonikana mamwe marudzi ekabhoni ane maburi, ane mativi matatu. Mabhatiri ane simba shoma anoshandisa maelectrode ekabhoni-polymer akabatanidzwa.
Chinhu chikuru cheVRB ndechekuti kushandiswa kwechinhu chimwe chete mumasero ese ari maviri kunobatsira kudzivirira matambudziko ane chekuita nekusvibiswa kwemaelectrolyte maviri ehafu-masero panguva yekushandiswa kwenguva refu. Electrolyte inogara kwenguva refu uye matambudziko ekurasa marara anoderedzwa. VRB inopawo simba rakawanda (<90% mukuisa kukuru), mutengo wakaderera wekuchengetedza nzvimbo yakakura, kuvandudzwa kwemasisitimu aripo, uye hupenyu hwenguva refu. Zvipingamupinyi zvinogona kuitika zvinosanganisira mutengo wepamusoro wemari yevanadium-based electrolytes pamwe chete nemutengo uye hupenyu hushoma hwe ion-exchange membrane.
Nguva yekutumira: Chivabvu-31-2021